diff --git a/.strict-typing b/.strict-typing
index e67ea8d60d8..6e862159680 100644
--- a/.strict-typing
+++ b/.strict-typing
@@ -144,6 +144,7 @@ homeassistant.components.dormakaba_dkey.*
 homeassistant.components.downloader.*
 homeassistant.components.dsmr.*
 homeassistant.components.dunehd.*
+homeassistant.components.duotecno.*
 homeassistant.components.efergy.*
 homeassistant.components.electrasmart.*
 homeassistant.components.electric_kiwi.*
diff --git a/homeassistant/components/duotecno/binary_sensor.py b/homeassistant/components/duotecno/binary_sensor.py
index 5867e2d634e..60578adf6a7 100644
--- a/homeassistant/components/duotecno/binary_sensor.py
+++ b/homeassistant/components/duotecno/binary_sensor.py
@@ -1,5 +1,7 @@
 """Support for Duotecno binary sensors."""
+from __future__ import annotations
 
+from duotecno.controller import PyDuotecno
 from duotecno.unit import ControlUnit, VirtualUnit
 
 from homeassistant.components.binary_sensor import BinarySensorEntity
@@ -17,7 +19,7 @@ async def async_setup_entry(
     async_add_entities: AddEntitiesCallback,
 ) -> None:
     """Set up Duotecno binary sensor on config_entry."""
-    cntrl = hass.data[DOMAIN][entry.entry_id]
+    cntrl: PyDuotecno = hass.data[DOMAIN][entry.entry_id]
     async_add_entities(
         DuotecnoBinarySensor(channel)
         for channel in cntrl.get_units(["ControlUnit", "VirtualUnit"])
diff --git a/homeassistant/components/duotecno/climate.py b/homeassistant/components/duotecno/climate.py
index dc10e0a61d9..22be40a812e 100644
--- a/homeassistant/components/duotecno/climate.py
+++ b/homeassistant/components/duotecno/climate.py
@@ -1,6 +1,9 @@
 """Support for Duotecno climate devices."""
+from __future__ import annotations
+
 from typing import Any, Final
 
+from duotecno.controller import PyDuotecno
 from duotecno.unit import SensUnit
 
 from homeassistant.components.climate import (
@@ -33,7 +36,7 @@ async def async_setup_entry(
     async_add_entities: AddEntitiesCallback,
 ) -> None:
     """Set up Duotecno climate based on config_entry."""
-    cntrl = hass.data[DOMAIN][entry.entry_id]
+    cntrl: PyDuotecno = hass.data[DOMAIN][entry.entry_id]
     async_add_entities(
         DuotecnoClimate(channel) for channel in cntrl.get_units(["SensUnit"])
     )
diff --git a/homeassistant/components/duotecno/cover.py b/homeassistant/components/duotecno/cover.py
index 0be9daf572b..b8802c77304 100644
--- a/homeassistant/components/duotecno/cover.py
+++ b/homeassistant/components/duotecno/cover.py
@@ -3,6 +3,7 @@ from __future__ import annotations
 
 from typing import Any
 
+from duotecno.controller import PyDuotecno
 from duotecno.unit import DuoswitchUnit
 
 from homeassistant.components.cover import CoverEntity, CoverEntityFeature
@@ -20,7 +21,7 @@ async def async_setup_entry(
     async_add_entities: AddEntitiesCallback,
 ) -> None:
     """Set up the duoswitch endities."""
-    cntrl = hass.data[DOMAIN][entry.entry_id]
+    cntrl: PyDuotecno = hass.data[DOMAIN][entry.entry_id]
     async_add_entities(
         DuotecnoCover(channel) for channel in cntrl.get_units("DuoswitchUnit")
     )
@@ -30,13 +31,9 @@ class DuotecnoCover(DuotecnoEntity, CoverEntity):
     """Representation a Velbus cover."""
 
     _unit: DuoswitchUnit
-
-    def __init__(self, unit: DuoswitchUnit) -> None:
-        """Initialize the cover."""
-        super().__init__(unit)
-        self._attr_supported_features = (
-            CoverEntityFeature.OPEN | CoverEntityFeature.CLOSE | CoverEntityFeature.STOP
-        )
+    _attr_supported_features = (
+        CoverEntityFeature.OPEN | CoverEntityFeature.CLOSE | CoverEntityFeature.STOP
+    )
 
     @property
     def is_closed(self) -> bool | None:
diff --git a/homeassistant/components/duotecno/entity.py b/homeassistant/components/duotecno/entity.py
index 8d905979bfe..85566b3ebad 100644
--- a/homeassistant/components/duotecno/entity.py
+++ b/homeassistant/components/duotecno/entity.py
@@ -17,10 +17,9 @@ from .const import DOMAIN
 class DuotecnoEntity(Entity):
     """Representation of a Duotecno entity."""
 
-    _attr_should_poll: bool = False
-    _unit: BaseUnit
+    _attr_should_poll = False
 
-    def __init__(self, unit) -> None:
+    def __init__(self, unit: BaseUnit) -> None:
         """Initialize a Duotecno entity."""
         self._unit = unit
         self._attr_name = unit.get_name()
diff --git a/homeassistant/components/duotecno/light.py b/homeassistant/components/duotecno/light.py
index 9aee4513fca..851dd64bfb2 100644
--- a/homeassistant/components/duotecno/light.py
+++ b/homeassistant/components/duotecno/light.py
@@ -1,6 +1,7 @@
 """Support for Duotecno lights."""
 from typing import Any
 
+from duotecno.controller import PyDuotecno
 from duotecno.unit import DimUnit
 
 from homeassistant.components.light import ATTR_BRIGHTNESS, ColorMode, LightEntity
@@ -18,7 +19,7 @@ async def async_setup_entry(
     async_add_entities: AddEntitiesCallback,
 ) -> None:
     """Set up Duotecno light based on config_entry."""
-    cntrl = hass.data[DOMAIN][entry.entry_id]
+    cntrl: PyDuotecno = hass.data[DOMAIN][entry.entry_id]
     async_add_entities(DuotecnoLight(channel) for channel in cntrl.get_units("DimUnit"))
 
 
diff --git a/homeassistant/components/duotecno/switch.py b/homeassistant/components/duotecno/switch.py
index 63bab750543..d43f82fc657 100644
--- a/homeassistant/components/duotecno/switch.py
+++ b/homeassistant/components/duotecno/switch.py
@@ -1,6 +1,7 @@
 """Support for Duotecno switches."""
 from typing import Any
 
+from duotecno.controller import PyDuotecno
 from duotecno.unit import SwitchUnit
 
 from homeassistant.components.switch import SwitchEntity
@@ -18,7 +19,7 @@ async def async_setup_entry(
     async_add_entities: AddEntitiesCallback,
 ) -> None:
     """Set up Velbus switch based on config_entry."""
-    cntrl = hass.data[DOMAIN][entry.entry_id]
+    cntrl: PyDuotecno = hass.data[DOMAIN][entry.entry_id]
     async_add_entities(
         DuotecnoSwitch(channel) for channel in cntrl.get_units("SwitchUnit")
     )
diff --git a/mypy.ini b/mypy.ini
index 97927cf83aa..b84c183cdf1 100644
--- a/mypy.ini
+++ b/mypy.ini
@@ -1201,6 +1201,16 @@ disallow_untyped_defs = true
 warn_return_any = true
 warn_unreachable = true
 
+[mypy-homeassistant.components.duotecno.*]
+check_untyped_defs = true
+disallow_incomplete_defs = true
+disallow_subclassing_any = true
+disallow_untyped_calls = true
+disallow_untyped_decorators = true
+disallow_untyped_defs = true
+warn_return_any = true
+warn_unreachable = true
+
 [mypy-homeassistant.components.efergy.*]
 check_untyped_defs = true
 disallow_incomplete_defs = true