diff --git a/homeassistant/components/plugwise/button.py b/homeassistant/components/plugwise/button.py
new file mode 100644
index 00000000000..078d31bea12
--- /dev/null
+++ b/homeassistant/components/plugwise/button.py
@@ -0,0 +1,52 @@
+"""Plugwise Button component for Home Assistant."""
+
+from __future__ import annotations
+
+from homeassistant.components.button import ButtonDeviceClass, ButtonEntity
+from homeassistant.const import EntityCategory
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers.entity_platform import AddEntitiesCallback
+
+from . import PlugwiseConfigEntry
+from .const import GATEWAY_ID, REBOOT
+from .coordinator import PlugwiseDataUpdateCoordinator
+from .entity import PlugwiseEntity
+from .util import plugwise_command
+
+
+async def async_setup_entry(
+    hass: HomeAssistant,
+    entry: PlugwiseConfigEntry,
+    async_add_entities: AddEntitiesCallback,
+) -> None:
+    """Set up the Plugwise buttons from a ConfigEntry."""
+    coordinator = entry.runtime_data
+
+    gateway = coordinator.data.gateway
+    async_add_entities(
+        PlugwiseButtonEntity(coordinator, device_id)
+        for device_id in coordinator.data.devices
+        if device_id == gateway[GATEWAY_ID] and REBOOT in gateway
+    )
+
+
+class PlugwiseButtonEntity(PlugwiseEntity, ButtonEntity):
+    """Defines a Plugwise button."""
+
+    _attr_device_class = ButtonDeviceClass.RESTART
+    _attr_entity_category = EntityCategory.CONFIG
+
+    def __init__(
+        self,
+        coordinator: PlugwiseDataUpdateCoordinator,
+        device_id: str,
+    ) -> None:
+        """Initialize the button."""
+        super().__init__(coordinator, device_id)
+        self._attr_translation_key = REBOOT
+        self._attr_unique_id = f"{device_id}-reboot"
+
+    @plugwise_command
+    async def async_press(self) -> None:
+        """Triggers the Plugwise button press service."""
+        await self.coordinator.api.reboot_gateway()
diff --git a/homeassistant/components/plugwise/const.py b/homeassistant/components/plugwise/const.py
index 14599ce61fb..5e4dea5586b 100644
--- a/homeassistant/components/plugwise/const.py
+++ b/homeassistant/components/plugwise/const.py
@@ -17,14 +17,17 @@ FLOW_SMILE: Final = "smile (Adam/Anna/P1)"
 FLOW_STRETCH: Final = "stretch (Stretch)"
 FLOW_TYPE: Final = "flow_type"
 GATEWAY: Final = "gateway"
+GATEWAY_ID: Final = "gateway_id"
 LOCATION: Final = "location"
 PW_TYPE: Final = "plugwise_type"
+REBOOT: Final = "reboot"
 SMILE: Final = "smile"
 STRETCH: Final = "stretch"
 STRETCH_USERNAME: Final = "stretch"
 
 PLATFORMS: Final[list[str]] = [
     Platform.BINARY_SENSOR,
+    Platform.BUTTON,
     Platform.CLIMATE,
     Platform.NUMBER,
     Platform.SELECT,
diff --git a/homeassistant/components/plugwise/coordinator.py b/homeassistant/components/plugwise/coordinator.py
index 1dff11d26d8..bc12ef4443b 100644
--- a/homeassistant/components/plugwise/coordinator.py
+++ b/homeassistant/components/plugwise/coordinator.py
@@ -7,6 +7,7 @@ from plugwise.exceptions import (
     ConnectionFailedError,
     InvalidAuthentication,
     InvalidXMLError,
+    PlugwiseError,
     ResponseError,
     UnsupportedDeviceError,
 )
@@ -64,22 +65,23 @@ class PlugwiseDataUpdateCoordinator(DataUpdateCoordinator[PlugwiseData]):
 
     async def _async_update_data(self) -> PlugwiseData:
         """Fetch data from Plugwise."""
-
+        data = PlugwiseData({}, {})
         try:
             if not self._connected:
                 await self._connect()
             data = await self.api.async_update()
+        except ConnectionFailedError as err:
+            raise UpdateFailed("Failed to connect") from err
         except InvalidAuthentication as err:
-            raise ConfigEntryError("Invalid username or Smile ID") from err
+            raise ConfigEntryError("Authentication failed") from err
         except (InvalidXMLError, ResponseError) as err:
             raise UpdateFailed(
-                "Invalid XML data, or error indication received for the Plugwise"
-                " Adam/Smile/Stretch"
+                "Invalid XML data, or error indication received from the Plugwise Adam/Smile/Stretch"
             ) from err
+        except PlugwiseError as err:
+            raise UpdateFailed("Data incomplete or missing") from err
         except UnsupportedDeviceError as err:
             raise ConfigEntryError("Device with unsupported firmware") from err
-        except ConnectionFailedError as err:
-            raise UpdateFailed("Failed to connect to the Plugwise Smile") from err
         else:
             self.new_devices = set(data.devices) - self._current_devices
             self._current_devices = set(data.devices)
diff --git a/homeassistant/components/plugwise/strings.json b/homeassistant/components/plugwise/strings.json
index ef2d6458441..f74fc036e2a 100644
--- a/homeassistant/components/plugwise/strings.json
+++ b/homeassistant/components/plugwise/strings.json
@@ -55,6 +55,11 @@
         "name": "Plugwise notification"
       }
     },
+    "button": {
+      "reboot": {
+        "name": "Reboot"
+      }
+    },
     "climate": {
       "plugwise": {
         "state_attributes": {
diff --git a/tests/components/plugwise/test_button.py b/tests/components/plugwise/test_button.py
new file mode 100644
index 00000000000..23003b3ffe6
--- /dev/null
+++ b/tests/components/plugwise/test_button.py
@@ -0,0 +1,39 @@
+"""Tests for Plugwise button entities."""
+
+from unittest.mock import MagicMock
+
+from homeassistant.components.button import (
+    DOMAIN as BUTTON_DOMAIN,
+    SERVICE_PRESS,
+    ButtonDeviceClass,
+)
+from homeassistant.const import ATTR_DEVICE_CLASS, ATTR_ENTITY_ID, STATE_UNKNOWN
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers import entity_registry as er
+
+from tests.common import MockConfigEntry
+
+
+async def test_adam_reboot_button(
+    hass: HomeAssistant, mock_smile_adam: MagicMock, init_integration: MockConfigEntry
+) -> None:
+    """Test creation of button entities."""
+    state = hass.states.get("button.adam_reboot")
+    assert state
+    assert state.state == STATE_UNKNOWN
+    assert state.attributes.get(ATTR_DEVICE_CLASS) == ButtonDeviceClass.RESTART
+
+    registry = er.async_get(hass)
+    entry = registry.async_get("button.adam_reboot")
+    assert entry
+    assert entry.unique_id == "fe799307f1624099878210aa0b9f1475-reboot"
+
+    await hass.services.async_call(
+        BUTTON_DOMAIN,
+        SERVICE_PRESS,
+        {ATTR_ENTITY_ID: "button.adam_reboot"},
+        blocking=True,
+    )
+
+    assert mock_smile_adam.reboot_gateway.call_count == 1
+    mock_smile_adam.reboot_gateway.assert_called_with()
diff --git a/tests/components/plugwise/test_init.py b/tests/components/plugwise/test_init.py
index 9c709f1c4f6..d3f23a18285 100644
--- a/tests/components/plugwise/test_init.py
+++ b/tests/components/plugwise/test_init.py
@@ -7,6 +7,7 @@ from plugwise.exceptions import (
     ConnectionFailedError,
     InvalidAuthentication,
     InvalidXMLError,
+    PlugwiseError,
     ResponseError,
     UnsupportedDeviceError,
 )
@@ -83,6 +84,7 @@ async def test_load_unload_config_entry(
         (ConnectionFailedError, ConfigEntryState.SETUP_RETRY),
         (InvalidAuthentication, ConfigEntryState.SETUP_ERROR),
         (InvalidXMLError, ConfigEntryState.SETUP_RETRY),
+        (PlugwiseError, ConfigEntryState.SETUP_RETRY),
         (ResponseError, ConfigEntryState.SETUP_RETRY),
         (UnsupportedDeviceError, ConfigEntryState.SETUP_ERROR),
     ],
@@ -219,7 +221,7 @@ async def test_update_device(
                 entity_registry, mock_config_entry.entry_id
             )
         )
-        == 28
+        == 29
     )
     assert (
         len(
@@ -242,7 +244,7 @@ async def test_update_device(
                     entity_registry, mock_config_entry.entry_id
                 )
             )
-            == 33
+            == 34
         )
         assert (
             len(