diff --git a/homeassistant/components/portainer/binary_sensor.py b/homeassistant/components/portainer/binary_sensor.py
index 6d38e012548..9209fec86b5 100644
--- a/homeassistant/components/portainer/binary_sensor.py
+++ b/homeassistant/components/portainer/binary_sensor.py
@@ -132,11 +132,6 @@ class PortainerEndpointSensor(PortainerEndpointEntity, BinarySensorEntity):
 
         self._attr_unique_id = f"{coordinator.config_entry.entry_id}_{device_info.id}_{entity_description.key}"
 
-    @property
-    def available(self) -> bool:
-        """Return if the device is available."""
-        return super().available and self.device_id in self.coordinator.data
-
     @property
     def is_on(self) -> bool | None:
         """Return true if the binary sensor is on."""
@@ -161,15 +156,6 @@ class PortainerContainerSensor(PortainerContainerEntity, BinarySensorEntity):
 
         self._attr_unique_id = f"{coordinator.config_entry.entry_id}_{self.device_name}_{entity_description.key}"
 
-    @property
-    def available(self) -> bool:
-        """Return if the device is available."""
-        return (
-            super().available
-            and self.endpoint_id in self.coordinator.data
-            and self.device_name in self.coordinator.data[self.endpoint_id].containers
-        )
-
     @property
     def is_on(self) -> bool | None:
         """Return true if the binary sensor is on."""
diff --git a/homeassistant/components/portainer/entity.py b/homeassistant/components/portainer/entity.py
index fd3c43adfc9..9401d550b02 100644
--- a/homeassistant/components/portainer/entity.py
+++ b/homeassistant/components/portainer/entity.py
@@ -44,6 +44,11 @@ class PortainerEndpointEntity(PortainerCoordinatorEntity):
             name=device_info.endpoint.name,
         )
 
+    @property
+    def available(self) -> bool:
+        """Return if the device is available."""
+        return super().available and self.device_id in self.coordinator.data
+
 
 class PortainerContainerEntity(PortainerCoordinatorEntity):
     """Base implementation for Portainer container."""
@@ -84,6 +89,15 @@ class PortainerContainerEntity(PortainerCoordinatorEntity):
             translation_key=None if self.device_name else "unknown_container",
         )
 
+    @property
+    def available(self) -> bool:
+        """Return if the device is available."""
+        return (
+            super().available
+            and self.endpoint_id in self.coordinator.data
+            and self.device_name in self.coordinator.data[self.endpoint_id].containers
+        )
+
     @property
     def container_data(self) -> PortainerContainerData:
         """Return the coordinator data for this container."""
diff --git a/homeassistant/components/portainer/sensor.py b/homeassistant/components/portainer/sensor.py
index 7fa59912ee7..e1e3dee9a6d 100644
--- a/homeassistant/components/portainer/sensor.py
+++ b/homeassistant/components/portainer/sensor.py
@@ -300,15 +300,6 @@ class PortainerContainerSensor(PortainerContainerEntity, SensorEntity):
 
         self._attr_unique_id = f"{coordinator.config_entry.entry_id}_{self.device_name}_{entity_description.key}"
 
-    @property
-    def available(self) -> bool:
-        """Return if the device is available."""
-        return (
-            super().available
-            and self.endpoint_id in self.coordinator.data
-            and self.device_name in self.coordinator.data[self.endpoint_id].containers
-        )
-
     @property
     def native_value(self) -> StateType:
         """Return the state of the sensor."""
@@ -332,11 +323,6 @@ class PortainerEndpointSensor(PortainerEndpointEntity, SensorEntity):
 
         self._attr_unique_id = f"{coordinator.config_entry.entry_id}_{device_info.id}_{entity_description.key}"
 
-    @property
-    def available(self) -> bool:
-        """Return if the device is available."""
-        return super().available and self.device_id in self.coordinator.data
-
     @property
     def native_value(self) -> StateType:
         """Return the state of the sensor."""