diff --git a/homeassistant/components/airthings/sensor.py b/homeassistant/components/airthings/sensor.py
index fc91d816aca..f0a3dc5be8f 100644
--- a/homeassistant/components/airthings/sensor.py
+++ b/homeassistant/components/airthings/sensor.py
@@ -157,3 +157,11 @@ class AirthingsHeaterEnergySensor(
     def native_value(self) -> StateType:
         """Return the value reported by the sensor."""
         return self.coordinator.data[self._id].sensors[self.entity_description.key]  # type: ignore[no-any-return]
+
+    @property
+    def available(self) -> bool:
+        """Check if device and sensor is available in data."""
+        return (
+            super().available
+            and self.entity_description.key in self.coordinator.data[self._id].sensors
+        )