diff --git a/.strict-typing b/.strict-typing
index e4e9d46847a..b653a8f0c65 100644
--- a/.strict-typing
+++ b/.strict-typing
@@ -100,6 +100,7 @@ homeassistant.components.jellyfin.*
 homeassistant.components.jewish_calendar.*
 homeassistant.components.knx.*
 homeassistant.components.kraken.*
+homeassistant.components.lametric.*
 homeassistant.components.lcn.*
 homeassistant.components.light.*
 homeassistant.components.local_ip.*
diff --git a/homeassistant/components/lametric/__init__.py b/homeassistant/components/lametric/__init__.py
index f0384e457e4..1c84c4f5510 100644
--- a/homeassistant/components/lametric/__init__.py
+++ b/homeassistant/components/lametric/__init__.py
@@ -50,7 +50,7 @@ def setup(hass: HomeAssistant, config: ConfigType) -> bool:
 class HassLaMetricManager:
     """A class that encapsulated requests to the LaMetric manager."""
 
-    def __init__(self, client_id, client_secret):
+    def __init__(self, client_id: str, client_secret: str) -> None:
         """Initialize HassLaMetricManager and connect to LaMetric."""
 
         _LOGGER.debug("Connecting to LaMetric")
diff --git a/homeassistant/components/lametric/notify.py b/homeassistant/components/lametric/notify.py
index d04225f2ce4..034deb911d1 100644
--- a/homeassistant/components/lametric/notify.py
+++ b/homeassistant/components/lametric/notify.py
@@ -1,5 +1,8 @@
 """Support for LaMetric notifications."""
+from __future__ import annotations
+
 import logging
+from typing import Any
 
 from lmnotify import Model, SimpleFrame, Sound
 from oauthlib.oauth2 import TokenExpiredError
@@ -13,9 +16,11 @@ from homeassistant.components.notify import (
     BaseNotificationService,
 )
 from homeassistant.const import CONF_ICON
+from homeassistant.core import HomeAssistant
 import homeassistant.helpers.config_validation as cv
+from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
 
-from . import DOMAIN as LAMETRIC_DOMAIN
+from . import DOMAIN, HassLaMetricManager
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -38,11 +43,14 @@ PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
 )
 
 
-def get_service(hass, config, discovery_info=None):
+def get_service(
+    hass: HomeAssistant,
+    config: ConfigType,
+    discovery_info: DiscoveryInfoType | None = None,
+) -> LaMetricNotificationService:
     """Get the LaMetric notification service."""
-    hlmn = hass.data.get(LAMETRIC_DOMAIN)
     return LaMetricNotificationService(
-        hlmn,
+        hass.data[DOMAIN],
         config[CONF_ICON],
         config[CONF_LIFETIME] * 1000,
         config[CONF_CYCLES],
@@ -55,8 +63,14 @@ class LaMetricNotificationService(BaseNotificationService):
     """Implement the notification service for LaMetric."""
 
     def __init__(
-        self, hasslametricmanager, icon, lifetime, cycles, priority, icon_type
-    ):
+        self,
+        hasslametricmanager: HassLaMetricManager,
+        icon: str,
+        lifetime: int,
+        cycles: int,
+        priority: str,
+        icon_type: str,
+    ) -> None:
         """Initialize the service."""
         self.hasslametricmanager = hasslametricmanager
         self._icon = icon
@@ -64,9 +78,9 @@ class LaMetricNotificationService(BaseNotificationService):
         self._cycles = cycles
         self._priority = priority
         self._icon_type = icon_type
-        self._devices = []
+        self._devices: list[dict[str, Any]] = []
 
-    def send_message(self, message="", **kwargs):
+    def send_message(self, message: str = "", **kwargs: Any) -> None:
         """Send a message to some LaMetric device."""
 
         targets = kwargs.get(ATTR_TARGET)
diff --git a/mypy.ini b/mypy.ini
index 31d929d39d8..5ea6d9b3005 100644
--- a/mypy.ini
+++ b/mypy.ini
@@ -912,6 +912,17 @@ no_implicit_optional = true
 warn_return_any = true
 warn_unreachable = true
 
+[mypy-homeassistant.components.lametric.*]
+check_untyped_defs = true
+disallow_incomplete_defs = true
+disallow_subclassing_any = true
+disallow_untyped_calls = true
+disallow_untyped_decorators = true
+disallow_untyped_defs = true
+no_implicit_optional = true
+warn_return_any = true
+warn_unreachable = true
+
 [mypy-homeassistant.components.lcn.*]
 check_untyped_defs = true
 disallow_incomplete_defs = true