diff --git a/homeassistant/components/acmeda/cover.py b/homeassistant/components/acmeda/cover.py
index d772d8ab01f..887e26cd7fc 100644
--- a/homeassistant/components/acmeda/cover.py
+++ b/homeassistant/components/acmeda/cover.py
@@ -47,7 +47,7 @@ class AcmedaCover(AcmedaBase, CoverEntity):
     """Representation of a Acmeda cover device."""
 
     @property
-    def current_cover_position(self):
+    def current_cover_position(self) -> int | None:
         """Return the current position of the roller blind.
 
         None is unknown, 0 is closed, 100 is fully open.
@@ -58,7 +58,7 @@ class AcmedaCover(AcmedaBase, CoverEntity):
         return position
 
     @property
-    def current_cover_tilt_position(self):
+    def current_cover_tilt_position(self) -> int | None:
         """Return the current tilt of the roller blind.
 
         None is unknown, 0 is closed, 100 is fully open.
@@ -69,7 +69,7 @@ class AcmedaCover(AcmedaBase, CoverEntity):
         return position
 
     @property
-    def supported_features(self):
+    def supported_features(self) -> int:
         """Flag supported features."""
         supported_features = 0
         if self.current_cover_position is not None:
@@ -90,7 +90,7 @@ class AcmedaCover(AcmedaBase, CoverEntity):
         return supported_features
 
     @property
-    def is_closed(self):
+    def is_closed(self) -> bool:
         """Return if the cover is closed."""
         return self.roller.closed_percent == 100
 
diff --git a/homeassistant/components/ads/cover.py b/homeassistant/components/ads/cover.py
index a976ce15877..a2fb1888cd3 100644
--- a/homeassistant/components/ads/cover.py
+++ b/homeassistant/components/ads/cover.py
@@ -135,7 +135,7 @@ class AdsCover(AdsEntity, CoverEntity):
             )
 
     @property
-    def is_closed(self):
+    def is_closed(self) -> bool | None:
         """Return if the cover is closed."""
         if self._ads_var is not None:
             return self._state_dict[STATE_KEY_STATE]
@@ -144,7 +144,7 @@ class AdsCover(AdsEntity, CoverEntity):
         return None
 
     @property
-    def current_cover_position(self):
+    def current_cover_position(self) -> int:
         """Return current position of cover."""
         return self._state_dict[STATE_KEY_POSITION]
 
diff --git a/homeassistant/components/advantage_air/cover.py b/homeassistant/components/advantage_air/cover.py
index bbe17835d71..36ae2c7fff0 100644
--- a/homeassistant/components/advantage_air/cover.py
+++ b/homeassistant/components/advantage_air/cover.py
@@ -58,12 +58,12 @@ class AdvantageAirZoneVent(AdvantageAirEntity, CoverEntity):
         )
 
     @property
-    def is_closed(self):
+    def is_closed(self) -> bool:
         """Return if vent is fully closed."""
         return self._zone["state"] == ADVANTAGE_AIR_STATE_CLOSE
 
     @property
-    def current_cover_position(self):
+    def current_cover_position(self) -> int:
         """Return vents current position as a percentage."""
         if self._zone["state"] == ADVANTAGE_AIR_STATE_OPEN:
             return self._zone["value"]
diff --git a/homeassistant/components/blebox/cover.py b/homeassistant/components/blebox/cover.py
index a7f531fe519..368443988a4 100644
--- a/homeassistant/components/blebox/cover.py
+++ b/homeassistant/components/blebox/cover.py
@@ -1,4 +1,6 @@
 """BleBox cover entity."""
+from __future__ import annotations
+
 from typing import Any
 
 from homeassistant.components.cover import (
@@ -41,7 +43,7 @@ class BleBoxCoverEntity(BleBoxEntity, CoverEntity):
         )
 
     @property
-    def current_cover_position(self):
+    def current_cover_position(self) -> int | None:
         """Return the current cover position."""
         position = self._feature.current
         if position == -1:  # possible for shutterBox
@@ -50,17 +52,17 @@ class BleBoxCoverEntity(BleBoxEntity, CoverEntity):
         return None if position is None else 100 - position
 
     @property
-    def is_opening(self):
+    def is_opening(self) -> bool | None:
         """Return whether cover is opening."""
         return self._is_state(STATE_OPENING)
 
     @property
-    def is_closing(self):
+    def is_closing(self) -> bool | None:
         """Return whether cover is closing."""
         return self._is_state(STATE_CLOSING)
 
     @property
-    def is_closed(self):
+    def is_closed(self) -> bool | None:
         """Return whether cover is closed."""
         return self._is_state(STATE_CLOSED)
 
@@ -82,6 +84,6 @@ class BleBoxCoverEntity(BleBoxEntity, CoverEntity):
         """Stop the cover."""
         await self._feature.async_stop()
 
-    def _is_state(self, state_name):
+    def _is_state(self, state_name) -> bool | None:
         value = BLEBOX_TO_HASS_COVER_STATES[self._feature.state]
         return None if value is None else value == state_name
diff --git a/homeassistant/components/bosch_shc/cover.py b/homeassistant/components/bosch_shc/cover.py
index cdbe884dc45..91dc361a23d 100644
--- a/homeassistant/components/bosch_shc/cover.py
+++ b/homeassistant/components/bosch_shc/cover.py
@@ -52,7 +52,7 @@ class ShutterControlCover(SHCEntity, CoverEntity):
     )
 
     @property
-    def current_cover_position(self):
+    def current_cover_position(self) -> int:
         """Return the current cover position."""
         return round(self._device.level * 100.0)
 
@@ -61,12 +61,12 @@ class ShutterControlCover(SHCEntity, CoverEntity):
         self._device.stop()
 
     @property
-    def is_closed(self):
+    def is_closed(self) -> bool:
         """Return if the cover is closed or not."""
         return self.current_cover_position == 0
 
     @property
-    def is_opening(self):
+    def is_opening(self) -> bool:
         """Return if the cover is opening or not."""
         return (
             self._device.operation_state
@@ -74,7 +74,7 @@ class ShutterControlCover(SHCEntity, CoverEntity):
         )
 
     @property
-    def is_closing(self):
+    def is_closing(self) -> bool:
         """Return if the cover is closing or not."""
         return (
             self._device.operation_state
diff --git a/homeassistant/components/brunt/cover.py b/homeassistant/components/brunt/cover.py
index c38dfa0eb78..489229622b2 100644
--- a/homeassistant/components/brunt/cover.py
+++ b/homeassistant/components/brunt/cover.py
@@ -1,7 +1,6 @@
 """Support for Brunt Blind Engine covers."""
 from __future__ import annotations
 
-from collections.abc import MutableMapping
 from typing import Any
 
 from aiohttp.client_exceptions import ClientResponseError
@@ -140,7 +139,7 @@ class BruntDevice(CoordinatorEntity, CoverEntity):
         return self.move_state == 2
 
     @property
-    def extra_state_attributes(self) -> MutableMapping[str, Any]:
+    def extra_state_attributes(self) -> dict[str, Any]:
         """Return the detailed device state attributes."""
         return {
             ATTR_REQUEST_POSITION: self.request_cover_position,
diff --git a/homeassistant/components/demo/cover.py b/homeassistant/components/demo/cover.py
index 5c908dfa33a..f867ed3faa4 100644
--- a/homeassistant/components/demo/cover.py
+++ b/homeassistant/components/demo/cover.py
@@ -110,42 +110,42 @@ class DemoCover(CoverEntity):
         )
 
     @property
-    def unique_id(self):
+    def unique_id(self) -> str:
         """Return unique ID for cover."""
         return self._unique_id
 
     @property
-    def name(self):
+    def name(self) -> str:
         """Return the name of the cover."""
         return self._name
 
     @property
-    def should_poll(self):
+    def should_poll(self) -> bool:
         """No polling needed for a demo cover."""
         return False
 
     @property
-    def current_cover_position(self):
+    def current_cover_position(self) -> int | None:
         """Return the current position of the cover."""
         return self._position
 
     @property
-    def current_cover_tilt_position(self):
+    def current_cover_tilt_position(self) -> int | None:
         """Return the current tilt position of the cover."""
         return self._tilt_position
 
     @property
-    def is_closed(self):
+    def is_closed(self) -> bool:
         """Return if the cover is closed."""
         return self._closed
 
     @property
-    def is_closing(self):
+    def is_closing(self) -> bool:
         """Return if the cover is closing."""
         return self._is_closing
 
     @property
-    def is_opening(self):
+    def is_opening(self) -> bool:
         """Return if the cover is opening."""
         return self._is_opening
 
@@ -155,7 +155,7 @@ class DemoCover(CoverEntity):
         return self._device_class
 
     @property
-    def supported_features(self):
+    def supported_features(self) -> int:
         """Flag supported features."""
         if self._supported_features is not None:
             return self._supported_features
diff --git a/homeassistant/components/esphome/cover.py b/homeassistant/components/esphome/cover.py
index 4296c899253..ab8b7af2185 100644
--- a/homeassistant/components/esphome/cover.py
+++ b/homeassistant/components/esphome/cover.py
@@ -111,7 +111,7 @@ class EsphomeCover(EsphomeEntity[CoverInfo, CoverState], CoverEntity):
         """Stop the cover."""
         await self._client.cover_command(key=self._static_info.key, stop=True)
 
-    async def async_set_cover_position(self, **kwargs: int) -> None:
+    async def async_set_cover_position(self, **kwargs: Any) -> None:
         """Move the cover to a specific position."""
         await self._client.cover_command(
             key=self._static_info.key, position=kwargs[ATTR_POSITION] / 100
diff --git a/homeassistant/components/fibaro/cover.py b/homeassistant/components/fibaro/cover.py
index 1e5583f20d6..c0749f9c100 100644
--- a/homeassistant/components/fibaro/cover.py
+++ b/homeassistant/components/fibaro/cover.py
@@ -72,12 +72,12 @@ class FibaroCover(FibaroDevice, CoverEntity):
         return False
 
     @property
-    def current_cover_position(self):
+    def current_cover_position(self) -> int | None:
         """Return current position of cover. 0 is closed, 100 is open."""
         return self.bound(self.level)
 
     @property
-    def current_cover_tilt_position(self):
+    def current_cover_tilt_position(self) -> int | None:
         """Return the current tilt position for venetian blinds."""
         return self.bound(self.level2)
 
@@ -90,7 +90,7 @@ class FibaroCover(FibaroDevice, CoverEntity):
         self.set_level2(kwargs.get(ATTR_TILT_POSITION))
 
     @property
-    def is_closed(self):
+    def is_closed(self) -> bool | None:
         """Return if the cover is closed."""
         if self._is_open_close_only():
             return self.fibaro_device.properties.state.lower() == "closed"
diff --git a/homeassistant/components/garadget/cover.py b/homeassistant/components/garadget/cover.py
index e0372db0c6c..96ebe698605 100644
--- a/homeassistant/components/garadget/cover.py
+++ b/homeassistant/components/garadget/cover.py
@@ -7,7 +7,11 @@ from typing import Any
 import requests
 import voluptuous as vol
 
-from homeassistant.components.cover import PLATFORM_SCHEMA, CoverEntity
+from homeassistant.components.cover import (
+    PLATFORM_SCHEMA,
+    CoverDeviceClass,
+    CoverEntity,
+)
 from homeassistant.const import (
     CONF_ACCESS_TOKEN,
     CONF_COVERS,
@@ -135,17 +139,17 @@ class GaradgetCover(CoverEntity):
             self.remove_token()
 
     @property
-    def name(self):
+    def name(self) -> str:
         """Return the name of the cover."""
         return self._name
 
     @property
-    def available(self):
+    def available(self) -> bool:
         """Return True if entity is available."""
         return self._available
 
     @property
-    def extra_state_attributes(self):
+    def extra_state_attributes(self) -> dict[str, Any]:
         """Return the device state attributes."""
         data = {}
 
@@ -164,16 +168,16 @@ class GaradgetCover(CoverEntity):
         return data
 
     @property
-    def is_closed(self):
+    def is_closed(self) -> bool | None:
         """Return if the cover is closed."""
         if self._state is None:
             return None
         return self._state == STATE_CLOSED
 
     @property
-    def device_class(self):
+    def device_class(self) -> CoverDeviceClass:
         """Return the class of this device, from component DEVICE_CLASSES."""
-        return "garage"
+        return CoverDeviceClass.GARAGE
 
     def get_token(self):
         """Get new token for usage during this session."""
diff --git a/homeassistant/components/gogogate2/cover.py b/homeassistant/components/gogogate2/cover.py
index b7434952fc1..f0039d85295 100644
--- a/homeassistant/components/gogogate2/cover.py
+++ b/homeassistant/components/gogogate2/cover.py
@@ -62,12 +62,12 @@ class DeviceCover(GoGoGate2Entity, CoverEntity):
         )
 
     @property
-    def name(self):
+    def name(self) -> str | None:
         """Return the name of the door."""
         return self.door.name
 
     @property
-    def is_closed(self):
+    def is_closed(self) -> bool | None:
         """Return true if cover is closed, else False."""
         door_status = self.door_status
         if door_status == DoorStatus.OPENED:
@@ -77,12 +77,12 @@ class DeviceCover(GoGoGate2Entity, CoverEntity):
         return None
 
     @property
-    def is_closing(self):
+    def is_closing(self) -> bool:
         """Return if the cover is closing or not."""
         return self.door_status == TransitionDoorStatus.CLOSING
 
     @property
-    def is_opening(self):
+    def is_opening(self) -> bool:
         """Return if the cover is opening or not."""
         return self.door_status == TransitionDoorStatus.OPENING
 
diff --git a/homeassistant/components/homematic/cover.py b/homeassistant/components/homematic/cover.py
index d138e172784..d5f1802e774 100644
--- a/homeassistant/components/homematic/cover.py
+++ b/homeassistant/components/homematic/cover.py
@@ -43,7 +43,7 @@ class HMCover(HMDevice, CoverEntity):
     """Representation a HomeMatic Cover."""
 
     @property
-    def current_cover_position(self):
+    def current_cover_position(self) -> int | None:
         """
         Return current position of cover.
 
@@ -60,7 +60,7 @@ class HMCover(HMDevice, CoverEntity):
             self._hmdevice.set_level(level, self._channel)
 
     @property
-    def is_closed(self):
+    def is_closed(self) -> bool | None:
         """Return whether the cover is closed."""
         if self.current_cover_position is not None:
             return self.current_cover_position == 0
@@ -86,7 +86,7 @@ class HMCover(HMDevice, CoverEntity):
             self._data.update({"LEVEL_2": None})
 
     @property
-    def current_cover_tilt_position(self):
+    def current_cover_tilt_position(self) -> int | None:
         """Return current position of cover tilt.
 
         None is unknown, 0 is closed, 100 is fully open.
@@ -125,7 +125,7 @@ class HMGarage(HMCover):
     _attr_device_class = CoverDeviceClass.GARAGE
 
     @property
-    def current_cover_position(self):
+    def current_cover_position(self) -> None:
         """
         Return current position of cover.
 
@@ -135,7 +135,7 @@ class HMGarage(HMCover):
         return None
 
     @property
-    def is_closed(self):
+    def is_closed(self) -> bool:
         """Return whether the cover is closed."""
         return self._hmdevice.is_closed(self._hm_get_state())
 
diff --git a/homeassistant/components/hunterdouglas_powerview/cover.py b/homeassistant/components/hunterdouglas_powerview/cover.py
index fe26a100569..3f7d04f5b87 100644
--- a/homeassistant/components/hunterdouglas_powerview/cover.py
+++ b/homeassistant/components/hunterdouglas_powerview/cover.py
@@ -192,7 +192,7 @@ class PowerViewShadeBase(ShadeEntity, CoverEntity):
         return {STATE_ATTRIBUTE_ROOM_NAME: self._room_name}
 
     @property
-    def is_closed(self):
+    def is_closed(self) -> bool:
         """Return if the cover is closed."""
         return self.positions.primary <= CLOSED_POSITION
 
@@ -474,7 +474,7 @@ class PowerViewShadeTDBUTop(PowerViewShadeTDBU):
         return False
 
     @property
-    def is_closed(self):
+    def is_closed(self) -> bool:
         """Return if the cover is closed."""
         # top shade needs to check other motor
         return self.positions.secondary <= CLOSED_POSITION
diff --git a/homeassistant/components/insteon/cover.py b/homeassistant/components/insteon/cover.py
index 68f7f6156e3..645450166b9 100644
--- a/homeassistant/components/insteon/cover.py
+++ b/homeassistant/components/insteon/cover.py
@@ -47,7 +47,7 @@ class InsteonCoverEntity(InsteonEntity, CoverEntity):
     )
 
     @property
-    def current_cover_position(self):
+    def current_cover_position(self) -> int:
         """Return the current cover position."""
         if self._insteon_device_group.value is not None:
             pos = self._insteon_device_group.value
@@ -56,7 +56,7 @@ class InsteonCoverEntity(InsteonEntity, CoverEntity):
         return int(math.ceil(pos * 100 / 255))
 
     @property
-    def is_closed(self):
+    def is_closed(self) -> bool:
         """Return the boolean response if the node is on."""
         return bool(self.current_cover_position)
 
diff --git a/homeassistant/components/lutron/cover.py b/homeassistant/components/lutron/cover.py
index 67a0e093337..fa62ef3745a 100644
--- a/homeassistant/components/lutron/cover.py
+++ b/homeassistant/components/lutron/cover.py
@@ -43,12 +43,12 @@ class LutronCover(LutronDevice, CoverEntity):
     )
 
     @property
-    def is_closed(self):
+    def is_closed(self) -> bool:
         """Return if the cover is closed."""
         return self._lutron_device.last_level() < 1
 
     @property
-    def current_cover_position(self):
+    def current_cover_position(self) -> int:
         """Return the current position of cover."""
         return self._lutron_device.last_level()
 
@@ -73,6 +73,6 @@ class LutronCover(LutronDevice, CoverEntity):
         _LOGGER.debug("Lutron ID: %d updated to %f", self._lutron_device.id, level)
 
     @property
-    def extra_state_attributes(self):
+    def extra_state_attributes(self) -> dict[str, Any]:
         """Return the state attributes."""
         return {"lutron_integration_id": self._lutron_device.id}
diff --git a/homeassistant/components/lutron_caseta/cover.py b/homeassistant/components/lutron_caseta/cover.py
index 68932a2a011..b74642a8589 100644
--- a/homeassistant/components/lutron_caseta/cover.py
+++ b/homeassistant/components/lutron_caseta/cover.py
@@ -50,12 +50,12 @@ class LutronCasetaCover(LutronCasetaDeviceUpdatableEntity, CoverEntity):
     _attr_device_class = CoverDeviceClass.SHADE
 
     @property
-    def is_closed(self):
+    def is_closed(self) -> bool:
         """Return if the cover is closed."""
         return self._device["current_state"] < 1
 
     @property
-    def current_cover_position(self):
+    def current_cover_position(self) -> int:
         """Return the current position of cover."""
         return self._device["current_state"]
 
diff --git a/homeassistant/components/motion_blinds/cover.py b/homeassistant/components/motion_blinds/cover.py
index 301d2c6fbc7..a73166912f4 100644
--- a/homeassistant/components/motion_blinds/cover.py
+++ b/homeassistant/components/motion_blinds/cover.py
@@ -1,4 +1,6 @@
 """Support for Motion Blinds using their WLAN API."""
+from __future__ import annotations
+
 import logging
 from typing import Any
 
@@ -216,7 +218,7 @@ class MotionPositionDevice(CoordinatorEntity, CoverEntity):
         )
 
     @property
-    def available(self):
+    def available(self) -> bool:
         """Return True if entity is available."""
         if self.coordinator.data is None:
             return False
@@ -227,7 +229,7 @@ class MotionPositionDevice(CoordinatorEntity, CoverEntity):
         return self.coordinator.data[self._blind.mac][ATTR_AVAILABLE]
 
     @property
-    def current_cover_position(self):
+    def current_cover_position(self) -> int | None:
         """
         Return current position of cover.
 
@@ -238,7 +240,7 @@ class MotionPositionDevice(CoordinatorEntity, CoverEntity):
         return 100 - self._blind.position
 
     @property
-    def is_closed(self):
+    def is_closed(self) -> bool | None:
         """Return if the cover is closed or not."""
         if self._blind.position is None:
             return None
@@ -249,7 +251,7 @@ class MotionPositionDevice(CoordinatorEntity, CoverEntity):
         self._blind.Register_callback(self.unique_id, self.schedule_update_ha_state)
         await super().async_added_to_hass()
 
-    async def async_will_remove_from_hass(self):
+    async def async_will_remove_from_hass(self) -> None:
         """Unsubscribe when removed."""
         self._blind.Remove_callback(self.unique_id)
         await super().async_will_remove_from_hass()
@@ -340,7 +342,7 @@ class MotionTiltDevice(MotionPositionDevice):
     _restore_tilt = True
 
     @property
-    def current_cover_tilt_position(self):
+    def current_cover_tilt_position(self) -> int | None:
         """
         Return current angle of cover.
 
@@ -378,7 +380,7 @@ class MotionTiltOnlyDevice(MotionTiltDevice):
     _restore_tilt = False
 
     @property
-    def supported_features(self):
+    def supported_features(self) -> int:
         """Flag supported features."""
         supported_features = (
             CoverEntityFeature.OPEN_TILT
@@ -392,12 +394,12 @@ class MotionTiltOnlyDevice(MotionTiltDevice):
         return supported_features
 
     @property
-    def current_cover_position(self):
+    def current_cover_position(self) -> None:
         """Return current position of cover."""
         return None
 
     @property
-    def is_closed(self):
+    def is_closed(self) -> bool | None:
         """Return if the cover is closed or not."""
         if self._blind.angle is None:
             return None
@@ -430,7 +432,7 @@ class MotionTDBUDevice(MotionPositionDevice):
             _LOGGER.error("Unknown motor '%s'", self._motor)
 
     @property
-    def current_cover_position(self):
+    def current_cover_position(self) -> int | None:
         """
         Return current position of cover.
 
@@ -442,7 +444,7 @@ class MotionTDBUDevice(MotionPositionDevice):
         return 100 - self._blind.scaled_position[self._motor_key]
 
     @property
-    def is_closed(self):
+    def is_closed(self) -> bool | None:
         """Return if the cover is closed or not."""
         if self._blind.position is None:
             return None
@@ -453,7 +455,7 @@ class MotionTDBUDevice(MotionPositionDevice):
         return self._blind.position[self._motor_key] == 100
 
     @property
-    def extra_state_attributes(self):
+    def extra_state_attributes(self) -> dict[str, Any]:
         """Return device specific state attributes."""
         attributes = {}
         if self._blind.position is not None:
diff --git a/homeassistant/components/mqtt/cover.py b/homeassistant/components/mqtt/cover.py
index 8a32471ecec..54ed4f2b0a0 100644
--- a/homeassistant/components/mqtt/cover.py
+++ b/homeassistant/components/mqtt/cover.py
@@ -12,6 +12,7 @@ from homeassistant.components.cover import (
     ATTR_POSITION,
     ATTR_TILT_POSITION,
     DEVICE_CLASSES_SCHEMA,
+    CoverDeviceClass,
     CoverEntity,
     CoverEntityFeature,
 )
@@ -486,12 +487,12 @@ class MqttCover(MqttEntity, CoverEntity):
         await subscription.async_subscribe_topics(self.hass, self._sub_state)
 
     @property
-    def assumed_state(self):
+    def assumed_state(self) -> bool:
         """Return true if we do optimistic updates."""
-        return self._optimistic
+        return bool(self._optimistic)
 
     @property
-    def is_closed(self):
+    def is_closed(self) -> bool | None:
         """Return true if the cover is closed or None if the status is unknown."""
         if self._state is None:
             return None
@@ -499,17 +500,17 @@ class MqttCover(MqttEntity, CoverEntity):
         return self._state == STATE_CLOSED
 
     @property
-    def is_opening(self):
+    def is_opening(self) -> bool:
         """Return true if the cover is actively opening."""
         return self._state == STATE_OPENING
 
     @property
-    def is_closing(self):
+    def is_closing(self) -> bool:
         """Return true if the cover is actively closing."""
         return self._state == STATE_CLOSING
 
     @property
-    def current_cover_position(self):
+    def current_cover_position(self) -> int | None:
         """Return current position of cover.
 
         None is unknown, 0 is closed, 100 is fully open.
@@ -517,17 +518,17 @@ class MqttCover(MqttEntity, CoverEntity):
         return self._position
 
     @property
-    def current_cover_tilt_position(self):
+    def current_cover_tilt_position(self) -> int | None:
         """Return current position of cover tilt."""
         return self._tilt_value
 
     @property
-    def device_class(self):
+    def device_class(self) -> CoverDeviceClass | None:
         """Return the class of this sensor."""
         return self._config.get(CONF_DEVICE_CLASS)
 
     @property
-    def supported_features(self):
+    def supported_features(self) -> int:
         """Flag supported features."""
         supported_features = 0
         if self._config.get(CONF_COMMAND_TOPIC) is not None:
diff --git a/homeassistant/components/myq/cover.py b/homeassistant/components/myq/cover.py
index fe8ef16bc89..51d0b3290a6 100644
--- a/homeassistant/components/myq/cover.py
+++ b/homeassistant/components/myq/cover.py
@@ -50,22 +50,22 @@ class MyQCover(MyQEntity, CoverEntity):
         self._attr_unique_id = device.device_id
 
     @property
-    def is_closed(self):
+    def is_closed(self) -> bool:
         """Return true if cover is closed, else False."""
         return MYQ_TO_HASS.get(self._device.state) == STATE_CLOSED
 
     @property
-    def is_closing(self):
+    def is_closing(self) -> bool:
         """Return if the cover is closing or not."""
         return MYQ_TO_HASS.get(self._device.state) == STATE_CLOSING
 
     @property
-    def is_open(self):
+    def is_open(self) -> bool:
         """Return if the cover is opening or not."""
         return MYQ_TO_HASS.get(self._device.state) == STATE_OPEN
 
     @property
-    def is_opening(self):
+    def is_opening(self) -> bool:
         """Return if the cover is opening or not."""
         return MYQ_TO_HASS.get(self._device.state) == STATE_OPENING
 
diff --git a/homeassistant/components/opengarage/cover.py b/homeassistant/components/opengarage/cover.py
index ac0af64737a..aff913cf205 100644
--- a/homeassistant/components/opengarage/cover.py
+++ b/homeassistant/components/opengarage/cover.py
@@ -1,4 +1,6 @@
 """Platform for the opengarage.io cover component."""
+from __future__ import annotations
+
 import logging
 from typing import Any
 
@@ -43,21 +45,21 @@ class OpenGarageCover(OpenGarageEntity, CoverEntity):
         super().__init__(open_garage_data_coordinator, device_id)
 
     @property
-    def is_closed(self):
+    def is_closed(self) -> bool | None:
         """Return if the cover is closed."""
         if self._state is None:
             return None
         return self._state == STATE_CLOSED
 
     @property
-    def is_closing(self):
+    def is_closing(self) -> bool | None:
         """Return if the cover is closing."""
         if self._state is None:
             return None
         return self._state == STATE_CLOSING
 
     @property
-    def is_opening(self):
+    def is_opening(self) -> bool | None:
         """Return if the cover is opening."""
         if self._state is None:
             return None
diff --git a/homeassistant/components/scsgate/cover.py b/homeassistant/components/scsgate/cover.py
index 8d94f4214af..4aa08cae3bd 100644
--- a/homeassistant/components/scsgate/cover.py
+++ b/homeassistant/components/scsgate/cover.py
@@ -72,17 +72,17 @@ class SCSGateCover(CoverEntity):
         return self._scs_id
 
     @property
-    def should_poll(self):
+    def should_poll(self) -> bool:
         """No polling needed."""
         return False
 
     @property
-    def name(self):
+    def name(self) -> str:
         """Return the name of the cover."""
         return self._name
 
     @property
-    def is_closed(self):
+    def is_closed(self) -> None:
         """Return if the cover is closed."""
         return None
 
diff --git a/homeassistant/components/slide/cover.py b/homeassistant/components/slide/cover.py
index 52fcc3c8da4..866d3d40307 100644
--- a/homeassistant/components/slide/cover.py
+++ b/homeassistant/components/slide/cover.py
@@ -52,29 +52,29 @@ class SlideCover(CoverEntity):
         self._invert = slide["invert"]
 
     @property
-    def is_opening(self):
+    def is_opening(self) -> bool:
         """Return if the cover is opening or not."""
         return self._slide["state"] == STATE_OPENING
 
     @property
-    def is_closing(self):
+    def is_closing(self) -> bool:
         """Return if the cover is closing or not."""
         return self._slide["state"] == STATE_CLOSING
 
     @property
-    def is_closed(self):
+    def is_closed(self) -> bool | None:
         """Return None if status is unknown, True if closed, else False."""
         if self._slide["state"] is None:
             return None
         return self._slide["state"] == STATE_CLOSED
 
     @property
-    def available(self):
+    def available(self) -> bool:
         """Return False if state is not available."""
         return self._slide["online"]
 
     @property
-    def current_cover_position(self):
+    def current_cover_position(self) -> int | None:
         """Return the current position of cover shutter."""
         if (pos := self._slide["pos"]) is not None:
             if (1 - pos) <= DEFAULT_OFFSET or pos <= DEFAULT_OFFSET:
diff --git a/homeassistant/components/smartthings/cover.py b/homeassistant/components/smartthings/cover.py
index 7e2de17cad3..80a30131301 100644
--- a/homeassistant/components/smartthings/cover.py
+++ b/homeassistant/components/smartthings/cover.py
@@ -126,17 +126,17 @@ class SmartThingsCover(SmartThingsEntity, CoverEntity):
             self._state_attrs[ATTR_BATTERY_LEVEL] = battery
 
     @property
-    def is_opening(self):
+    def is_opening(self) -> bool:
         """Return if the cover is opening or not."""
         return self._state == STATE_OPENING
 
     @property
-    def is_closing(self):
+    def is_closing(self) -> bool:
         """Return if the cover is closing or not."""
         return self._state == STATE_CLOSING
 
     @property
-    def is_closed(self):
+    def is_closed(self) -> bool | None:
         """Return if the cover is closed or not."""
         if self._state == STATE_CLOSED:
             return True
@@ -150,11 +150,11 @@ class SmartThingsCover(SmartThingsEntity, CoverEntity):
         return self._device.status.level
 
     @property
-    def device_class(self):
+    def device_class(self) -> CoverDeviceClass | None:
         """Define this cover as a garage door."""
         return self._device_class
 
     @property
-    def extra_state_attributes(self):
+    def extra_state_attributes(self) -> dict[str, Any]:
         """Get additional state attributes."""
         return self._state_attrs
diff --git a/homeassistant/components/soma/cover.py b/homeassistant/components/soma/cover.py
index 5777e904597..0130b0ca7b1 100644
--- a/homeassistant/components/soma/cover.py
+++ b/homeassistant/components/soma/cover.py
@@ -52,12 +52,12 @@ class SomaTilt(SomaEntity, CoverEntity):
     )
 
     @property
-    def current_cover_tilt_position(self):
+    def current_cover_tilt_position(self) -> int:
         """Return the current cover tilt position."""
         return self.current_position
 
     @property
-    def is_closed(self):
+    def is_closed(self) -> bool:
         """Return if the cover tilt is closed."""
         return self.current_position == 0
 
@@ -126,12 +126,12 @@ class SomaShade(SomaEntity, CoverEntity):
     )
 
     @property
-    def current_cover_position(self):
+    def current_cover_position(self) -> int:
         """Return the current cover position."""
         return self.current_position
 
     @property
-    def is_closed(self):
+    def is_closed(self) -> bool:
         """Return if the cover is closed."""
         return self.current_position == 0
 
diff --git a/homeassistant/components/supla/cover.py b/homeassistant/components/supla/cover.py
index b1cc0951259..c6c1d9c07db 100644
--- a/homeassistant/components/supla/cover.py
+++ b/homeassistant/components/supla/cover.py
@@ -60,7 +60,7 @@ class SuplaCover(SuplaChannel, CoverEntity):
     """Representation of a Supla Cover."""
 
     @property
-    def current_cover_position(self):
+    def current_cover_position(self) -> int | None:
         """Return current position of cover. 0 is closed, 100 is open."""
         if state := self.channel_data.get("state"):
             return 100 - state["shut"]
@@ -71,7 +71,7 @@ class SuplaCover(SuplaChannel, CoverEntity):
         await self.async_action("REVEAL", percentage=kwargs.get(ATTR_POSITION))
 
     @property
-    def is_closed(self):
+    def is_closed(self) -> bool | None:
         """Return if the cover is closed."""
         if self.current_cover_position is None:
             return None
@@ -94,7 +94,7 @@ class SuplaGateDoor(SuplaChannel, CoverEntity):
     """Representation of a Supla gate door."""
 
     @property
-    def is_closed(self):
+    def is_closed(self) -> bool | None:
         """Return if the gate is closed or not."""
         state = self.channel_data.get("state")
         if state and "hi" in state:
@@ -120,6 +120,6 @@ class SuplaGateDoor(SuplaChannel, CoverEntity):
         await self.async_action("OPEN_CLOSE")
 
     @property
-    def device_class(self):
+    def device_class(self) -> CoverDeviceClass:
         """Return the class of this device, from component DEVICE_CLASSES."""
         return CoverDeviceClass.GARAGE
diff --git a/homeassistant/components/tellduslive/cover.py b/homeassistant/components/tellduslive/cover.py
index 49c35ac3114..829478fc990 100644
--- a/homeassistant/components/tellduslive/cover.py
+++ b/homeassistant/components/tellduslive/cover.py
@@ -8,6 +8,7 @@ from homeassistant.core import HomeAssistant
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 
+from . import TelldusLiveClient
 from .entry import TelldusLiveEntity
 
 
@@ -20,7 +21,7 @@ async def async_setup_entry(
 
     async def async_discover_cover(device_id):
         """Discover and add a discovered sensor."""
-        client = hass.data[tellduslive.DOMAIN]
+        client: TelldusLiveClient = hass.data[tellduslive.DOMAIN]
         async_add_entities([TelldusLiveCover(client, device_id)])
 
     async_dispatcher_connect(
@@ -34,7 +35,7 @@ class TelldusLiveCover(TelldusLiveEntity, CoverEntity):
     """Representation of a cover."""
 
     @property
-    def is_closed(self):
+    def is_closed(self) -> bool:
         """Return the current position of the cover."""
         return self.device.is_down
 
diff --git a/homeassistant/components/tellstick/cover.py b/homeassistant/components/tellstick/cover.py
index 7c38741960b..17da5684670 100644
--- a/homeassistant/components/tellstick/cover.py
+++ b/homeassistant/components/tellstick/cover.py
@@ -44,12 +44,12 @@ class TellstickCover(TellstickDevice, CoverEntity):
     """Representation of a Tellstick cover."""
 
     @property
-    def is_closed(self):
+    def is_closed(self) -> None:
         """Return the current position of the cover is not possible."""
         return None
 
     @property
-    def assumed_state(self):
+    def assumed_state(self) -> bool:
         """Return True if unable to access real state of the entity."""
         return True
 
diff --git a/homeassistant/components/template/cover.py b/homeassistant/components/template/cover.py
index 0c86b1d5d5a..aad0270e434 100644
--- a/homeassistant/components/template/cover.py
+++ b/homeassistant/components/template/cover.py
@@ -12,6 +12,7 @@ from homeassistant.components.cover import (
     DEVICE_CLASSES_SCHEMA,
     ENTITY_ID_FORMAT,
     PLATFORM_SCHEMA,
+    CoverDeviceClass,
     CoverEntity,
     CoverEntityFeature,
 )
@@ -154,7 +155,7 @@ class CoverTemplate(TemplateEntity, CoverEntity):
         self._template = config.get(CONF_VALUE_TEMPLATE)
         self._position_template = config.get(CONF_POSITION_TEMPLATE)
         self._tilt_template = config.get(CONF_TILT_TEMPLATE)
-        self._device_class = config.get(CONF_DEVICE_CLASS)
+        self._device_class: CoverDeviceClass | None = config.get(CONF_DEVICE_CLASS)
         self._open_script = None
         if (open_action := config.get(OPEN_ACTION)) is not None:
             self._open_script = Script(hass, open_action, friendly_name, DOMAIN)
@@ -270,22 +271,22 @@ class CoverTemplate(TemplateEntity, CoverEntity):
             self._tilt_value = state
 
     @property
-    def is_closed(self):
+    def is_closed(self) -> bool:
         """Return if the cover is closed."""
         return self._position == 0
 
     @property
-    def is_opening(self):
+    def is_opening(self) -> bool:
         """Return if the cover is currently opening."""
         return self._is_opening
 
     @property
-    def is_closing(self):
+    def is_closing(self) -> bool:
         """Return if the cover is currently closing."""
         return self._is_closing
 
     @property
-    def current_cover_position(self):
+    def current_cover_position(self) -> int | None:
         """Return current position of cover.
 
         None is unknown, 0 is closed, 100 is fully open.
@@ -295,7 +296,7 @@ class CoverTemplate(TemplateEntity, CoverEntity):
         return None
 
     @property
-    def current_cover_tilt_position(self):
+    def current_cover_tilt_position(self) -> int | None:
         """Return current position of cover tilt.
 
         None is unknown, 0 is closed, 100 is fully open.
@@ -303,12 +304,12 @@ class CoverTemplate(TemplateEntity, CoverEntity):
         return self._tilt_value
 
     @property
-    def device_class(self):
+    def device_class(self) -> CoverDeviceClass | None:
         """Return the device class of the cover."""
         return self._device_class
 
     @property
-    def supported_features(self):
+    def supported_features(self) -> int:
         """Flag supported features."""
         supported_features = CoverEntityFeature.OPEN | CoverEntityFeature.CLOSE
 
diff --git a/homeassistant/components/velux/cover.py b/homeassistant/components/velux/cover.py
index 1c8a4afcc6f..f721a628ef8 100644
--- a/homeassistant/components/velux/cover.py
+++ b/homeassistant/components/velux/cover.py
@@ -40,7 +40,7 @@ class VeluxCover(VeluxEntity, CoverEntity):
     """Representation of a Velux cover."""
 
     @property
-    def supported_features(self):
+    def supported_features(self) -> int:
         """Flag supported features."""
         supported_features = (
             CoverEntityFeature.OPEN
@@ -58,19 +58,19 @@ class VeluxCover(VeluxEntity, CoverEntity):
         return supported_features
 
     @property
-    def current_cover_position(self):
+    def current_cover_position(self) -> int:
         """Return the current position of the cover."""
         return 100 - self.node.position.position_percent
 
     @property
-    def current_cover_tilt_position(self):
+    def current_cover_tilt_position(self) -> int | None:
         """Return the current position of the cover."""
         if isinstance(self.node, Blind):
             return 100 - self.node.orientation.position_percent
         return None
 
     @property
-    def device_class(self):
+    def device_class(self) -> CoverDeviceClass:
         """Define this cover as either awning, blind, garage, gate, shutter or window."""
         if isinstance(self.node, Awning):
             return CoverDeviceClass.AWNING
@@ -87,7 +87,7 @@ class VeluxCover(VeluxEntity, CoverEntity):
         return CoverDeviceClass.WINDOW
 
     @property
-    def is_closed(self):
+    def is_closed(self) -> bool:
         """Return if the cover is closed."""
         return self.node.position.closed
 
diff --git a/homeassistant/components/xiaomi_aqara/cover.py b/homeassistant/components/xiaomi_aqara/cover.py
index e9946e37815..b6de7189d83 100644
--- a/homeassistant/components/xiaomi_aqara/cover.py
+++ b/homeassistant/components/xiaomi_aqara/cover.py
@@ -46,12 +46,12 @@ class XiaomiGenericCover(XiaomiDevice, CoverEntity):
         super().__init__(device, name, xiaomi_hub, config_entry)
 
     @property
-    def current_cover_position(self):
+    def current_cover_position(self) -> int:
         """Return the current position of the cover."""
         return self._pos
 
     @property
-    def is_closed(self):
+    def is_closed(self) -> bool:
         """Return if the cover is closed."""
         return self.current_cover_position <= 0
 
diff --git a/homeassistant/components/zha/cover.py b/homeassistant/components/zha/cover.py
index 39f76b6b77f..6ade62343b1 100644
--- a/homeassistant/components/zha/cover.py
+++ b/homeassistant/components/zha/cover.py
@@ -92,24 +92,24 @@ class ZhaCover(ZhaEntity, CoverEntity):
             self._current_position = last_state.attributes["current_position"]
 
     @property
-    def is_closed(self):
+    def is_closed(self) -> bool | None:
         """Return if the cover is closed."""
         if self.current_cover_position is None:
             return None
         return self.current_cover_position == 0
 
     @property
-    def is_opening(self):
+    def is_opening(self) -> bool:
         """Return if the cover is opening or not."""
         return self._state == STATE_OPENING
 
     @property
-    def is_closing(self):
+    def is_closing(self) -> bool:
         """Return if the cover is closing or not."""
         return self._state == STATE_CLOSING
 
     @property
-    def current_cover_position(self):
+    def current_cover_position(self) -> int | None:
         """Return the current position of ZHA cover.
 
         None is unknown, 0 is closed, 100 is fully open.
@@ -207,7 +207,7 @@ class Shade(ZhaEntity, CoverEntity):
         self._is_open: bool | None = None
 
     @property
-    def current_cover_position(self):
+    def current_cover_position(self) -> int | None:
         """Return current position of cover.
 
         None is unknown, 0 is closed, 100 is fully open.