diff --git a/homeassistant/components/opengarage/__init__.py b/homeassistant/components/opengarage/__init__.py
index 6b97e88df0b..c269ee53cf3 100644
--- a/homeassistant/components/opengarage/__init__.py
+++ b/homeassistant/components/opengarage/__init__.py
@@ -3,6 +3,7 @@ from __future__ import annotations
 
 from datetime import timedelta
 import logging
+from typing import Any
 
 import opengarage
 
@@ -11,6 +12,7 @@ from homeassistant.const import CONF_HOST, CONF_PORT, CONF_VERIFY_SSL, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers import update_coordinator
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
+from homeassistant.helpers.update_coordinator import DataUpdateCoordinator
 
 from .const import CONF_DEVICE_KEY, DOMAIN
 
@@ -50,7 +52,7 @@ async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     return unload_ok
 
 
-class OpenGarageDataUpdateCoordinator(update_coordinator.DataUpdateCoordinator):
+class OpenGarageDataUpdateCoordinator(DataUpdateCoordinator[dict[str, Any]]):
     """Class to manage fetching Opengarage data."""
 
     def __init__(
@@ -69,7 +71,7 @@ class OpenGarageDataUpdateCoordinator(update_coordinator.DataUpdateCoordinator):
             update_interval=timedelta(seconds=5),
         )
 
-    async def _async_update_data(self) -> None:
+    async def _async_update_data(self) -> dict[str, Any]:
         """Fetch data."""
         data = await self.open_garage_connection.update_state()
         if data is None:
diff --git a/homeassistant/components/opengarage/binary_sensor.py b/homeassistant/components/opengarage/binary_sensor.py
index 423843b4e11..64bc7c83d20 100644
--- a/homeassistant/components/opengarage/binary_sensor.py
+++ b/homeassistant/components/opengarage/binary_sensor.py
@@ -2,6 +2,7 @@
 from __future__ import annotations
 
 import logging
+from typing import cast
 
 from homeassistant.components.binary_sensor import (
     BinarySensorEntity,
@@ -11,6 +12,7 @@ from homeassistant.config_entries import ConfigEntry
 from homeassistant.core import HomeAssistant, callback
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 
+from . import OpenGarageDataUpdateCoordinator
 from .const import DOMAIN
 from .entity import OpenGarageEntity
 
@@ -28,12 +30,14 @@ async def async_setup_entry(
     hass: HomeAssistant, entry: ConfigEntry, async_add_entities: AddEntitiesCallback
 ) -> None:
     """Set up the OpenGarage binary sensors."""
-    open_garage_data_coordinator = hass.data[DOMAIN][entry.entry_id]
+    open_garage_data_coordinator: OpenGarageDataUpdateCoordinator = hass.data[DOMAIN][
+        entry.entry_id
+    ]
     async_add_entities(
         [
             OpenGarageBinarySensor(
                 open_garage_data_coordinator,
-                entry.unique_id,
+                cast(str, entry.unique_id),
                 description,
             )
             for description in SENSOR_TYPES
@@ -44,10 +48,15 @@ async def async_setup_entry(
 class OpenGarageBinarySensor(OpenGarageEntity, BinarySensorEntity):
     """Representation of a OpenGarage binary sensor."""
 
-    def __init__(self, open_garage_data_coordinator, device_id, description):
+    def __init__(
+        self,
+        coordinator: OpenGarageDataUpdateCoordinator,
+        device_id: str,
+        description: BinarySensorEntityDescription,
+    ) -> None:
         """Initialize the entity."""
         self._available = False
-        super().__init__(open_garage_data_coordinator, device_id, description)
+        super().__init__(coordinator, device_id, description)
 
     @property
     def available(self) -> bool:
diff --git a/homeassistant/components/opengarage/cover.py b/homeassistant/components/opengarage/cover.py
index aff913cf205..15669a41736 100644
--- a/homeassistant/components/opengarage/cover.py
+++ b/homeassistant/components/opengarage/cover.py
@@ -2,7 +2,7 @@
 from __future__ import annotations
 
 import logging
-from typing import Any
+from typing import Any, cast
 
 from homeassistant.components.cover import (
     CoverDeviceClass,
@@ -14,6 +14,7 @@ from homeassistant.const import STATE_CLOSED, STATE_CLOSING, STATE_OPEN, STATE_O
 from homeassistant.core import HomeAssistant, callback
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 
+from . import OpenGarageDataUpdateCoordinator
 from .const import DOMAIN
 from .entity import OpenGarageEntity
 
@@ -27,7 +28,7 @@ async def async_setup_entry(
 ) -> None:
     """Set up the OpenGarage covers."""
     async_add_entities(
-        [OpenGarageCover(hass.data[DOMAIN][entry.entry_id], entry.unique_id)]
+        [OpenGarageCover(hass.data[DOMAIN][entry.entry_id], cast(str, entry.unique_id))]
     )
 
 
@@ -37,12 +38,14 @@ class OpenGarageCover(OpenGarageEntity, CoverEntity):
     _attr_device_class = CoverDeviceClass.GARAGE
     _attr_supported_features = CoverEntityFeature.OPEN | CoverEntityFeature.CLOSE
 
-    def __init__(self, open_garage_data_coordinator, device_id):
+    def __init__(
+        self, coordinator: OpenGarageDataUpdateCoordinator, device_id: str
+    ) -> None:
         """Initialize the cover."""
-        self._state = None
-        self._state_before_move = None
+        self._state: str | None = None
+        self._state_before_move: str | None = None
 
-        super().__init__(open_garage_data_coordinator, device_id)
+        super().__init__(coordinator, device_id)
 
     @property
     def is_closed(self) -> bool | None:
@@ -87,7 +90,7 @@ class OpenGarageCover(OpenGarageEntity, CoverEntity):
         status = self.coordinator.data
 
         self._attr_name = status["name"]
-        state = STATES_MAP.get(status.get("door"))
+        state = STATES_MAP.get(status.get("door"))  # type: ignore[arg-type]
         if self._state_before_move is not None:
             if self._state_before_move != state:
                 self._state = state
diff --git a/homeassistant/components/opengarage/entity.py b/homeassistant/components/opengarage/entity.py
index 97a60d42c07..dec0d1daae8 100644
--- a/homeassistant/components/opengarage/entity.py
+++ b/homeassistant/components/opengarage/entity.py
@@ -1,17 +1,23 @@
 """Entity for the opengarage.io component."""
+from __future__ import annotations
 
 from homeassistant.core import callback
 from homeassistant.helpers.device_registry import CONNECTION_NETWORK_MAC
-from homeassistant.helpers.entity import DeviceInfo
+from homeassistant.helpers.entity import DeviceInfo, EntityDescription
 from homeassistant.helpers.update_coordinator import CoordinatorEntity
 
-from . import DOMAIN
+from . import DOMAIN, OpenGarageDataUpdateCoordinator
 
 
-class OpenGarageEntity(CoordinatorEntity):
+class OpenGarageEntity(CoordinatorEntity[OpenGarageDataUpdateCoordinator]):
     """Representation of a OpenGarage entity."""
 
-    def __init__(self, open_garage_data_coordinator, device_id, description=None):
+    def __init__(
+        self,
+        open_garage_data_coordinator: OpenGarageDataUpdateCoordinator,
+        device_id: str,
+        description: EntityDescription | None = None,
+    ) -> None:
         """Initialize the entity."""
         super().__init__(open_garage_data_coordinator)
 
@@ -35,9 +41,9 @@ class OpenGarageEntity(CoordinatorEntity):
         self.async_write_ha_state()
 
     @property
-    def device_info(self):
+    def device_info(self) -> DeviceInfo:
         """Return the device_info of the device."""
-        device_info = DeviceInfo(
+        return DeviceInfo(
             configuration_url=self.coordinator.open_garage_connection.device_url,
             connections={(CONNECTION_NETWORK_MAC, self.coordinator.data["mac"])},
             identifiers={(DOMAIN, self._device_id)},
@@ -46,4 +52,3 @@ class OpenGarageEntity(CoordinatorEntity):
             suggested_area="Garage",
             sw_version=self.coordinator.data["fwv"],
         )
-        return device_info
diff --git a/homeassistant/components/opengarage/sensor.py b/homeassistant/components/opengarage/sensor.py
index 386955dfd47..ba8ecc0c322 100644
--- a/homeassistant/components/opengarage/sensor.py
+++ b/homeassistant/components/opengarage/sensor.py
@@ -2,6 +2,7 @@
 from __future__ import annotations
 
 import logging
+from typing import cast
 
 from homeassistant.components.sensor import (
     SensorDeviceClass,
@@ -20,6 +21,7 @@ from homeassistant.core import HomeAssistant, callback
 from homeassistant.helpers.entity import EntityCategory
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 
+from . import OpenGarageDataUpdateCoordinator
 from .const import DOMAIN
 from .entity import OpenGarageEntity
 
@@ -59,12 +61,14 @@ async def async_setup_entry(
     hass: HomeAssistant, entry: ConfigEntry, async_add_entities: AddEntitiesCallback
 ) -> None:
     """Set up the OpenGarage sensors."""
-    open_garage_data_coordinator = hass.data[DOMAIN][entry.entry_id]
+    open_garage_data_coordinator: OpenGarageDataUpdateCoordinator = hass.data[DOMAIN][
+        entry.entry_id
+    ]
     async_add_entities(
         [
             OpenGarageSensor(
                 open_garage_data_coordinator,
-                entry.unique_id,
+                cast(str, entry.unique_id),
                 description,
             )
             for description in SENSOR_TYPES