diff --git a/homeassistant/components/insteon/binary_sensor.py b/homeassistant/components/insteon/binary_sensor.py
index ad87c69bd0f..69a4a5f5280 100644
--- a/homeassistant/components/insteon/binary_sensor.py
+++ b/homeassistant/components/insteon/binary_sensor.py
@@ -27,6 +27,7 @@ from homeassistant.components.binary_sensor import (
     DOMAIN as BINARY_SENSOR_DOMAIN,
     BinarySensorEntity,
 )
+from homeassistant.core import callback
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 
 from .const import SIGNAL_ADD_ENTITIES
@@ -51,7 +52,8 @@ SENSOR_TYPES = {
 async def async_setup_entry(hass, config_entry, async_add_entities):
     """Set up the Insteon binary sensors from a config entry."""
 
-    def add_entities(discovery_info=None):
+    @callback
+    def async_add_insteon_binary_sensor_entities(discovery_info=None):
         """Add the Insteon entities for the platform."""
         async_add_insteon_entities(
             hass,
@@ -62,8 +64,8 @@ async def async_setup_entry(hass, config_entry, async_add_entities):
         )
 
     signal = f"{SIGNAL_ADD_ENTITIES}_{BINARY_SENSOR_DOMAIN}"
-    async_dispatcher_connect(hass, signal, add_entities)
-    add_entities()
+    async_dispatcher_connect(hass, signal, async_add_insteon_binary_sensor_entities)
+    async_add_insteon_binary_sensor_entities()
 
 
 class InsteonBinarySensorEntity(InsteonEntity, BinarySensorEntity):
diff --git a/homeassistant/components/insteon/climate.py b/homeassistant/components/insteon/climate.py
index 7d4d9543c3f..c699e76c4f3 100644
--- a/homeassistant/components/insteon/climate.py
+++ b/homeassistant/components/insteon/climate.py
@@ -25,6 +25,7 @@ from homeassistant.components.climate.const import (
     SUPPORT_TARGET_TEMPERATURE_RANGE,
 )
 from homeassistant.const import ATTR_TEMPERATURE, TEMP_CELSIUS, TEMP_FAHRENHEIT
+from homeassistant.core import callback
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 
 from .const import SIGNAL_ADD_ENTITIES
@@ -64,7 +65,8 @@ SUPPORTED_FEATURES = (
 async def async_setup_entry(hass, config_entry, async_add_entities):
     """Set up the Insteon climate entities from a config entry."""
 
-    def add_entities(discovery_info=None):
+    @callback
+    def async_add_insteon_climate_entities(discovery_info=None):
         """Add the Insteon entities for the platform."""
         async_add_insteon_entities(
             hass,
@@ -75,8 +77,8 @@ async def async_setup_entry(hass, config_entry, async_add_entities):
         )
 
     signal = f"{SIGNAL_ADD_ENTITIES}_{CLIMATE_DOMAIN}"
-    async_dispatcher_connect(hass, signal, add_entities)
-    add_entities()
+    async_dispatcher_connect(hass, signal, async_add_insteon_climate_entities)
+    async_add_insteon_climate_entities()
 
 
 class InsteonClimateEntity(InsteonEntity, ClimateEntity):
diff --git a/homeassistant/components/insteon/cover.py b/homeassistant/components/insteon/cover.py
index 498d194667c..fd20637b174 100644
--- a/homeassistant/components/insteon/cover.py
+++ b/homeassistant/components/insteon/cover.py
@@ -9,6 +9,7 @@ from homeassistant.components.cover import (
     SUPPORT_SET_POSITION,
     CoverEntity,
 )
+from homeassistant.core import callback
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 
 from .const import SIGNAL_ADD_ENTITIES
@@ -21,15 +22,16 @@ SUPPORTED_FEATURES = SUPPORT_OPEN | SUPPORT_CLOSE | SUPPORT_SET_POSITION
 async def async_setup_entry(hass, config_entry, async_add_entities):
     """Set up the Insteon covers from a config entry."""
 
-    def add_entities(discovery_info=None):
+    @callback
+    def async_add_insteon_cover_entities(discovery_info=None):
         """Add the Insteon entities for the platform."""
         async_add_insteon_entities(
             hass, COVER_DOMAIN, InsteonCoverEntity, async_add_entities, discovery_info
         )
 
     signal = f"{SIGNAL_ADD_ENTITIES}_{COVER_DOMAIN}"
-    async_dispatcher_connect(hass, signal, add_entities)
-    add_entities()
+    async_dispatcher_connect(hass, signal, async_add_insteon_cover_entities)
+    async_add_insteon_cover_entities()
 
 
 class InsteonCoverEntity(InsteonEntity, CoverEntity):
diff --git a/homeassistant/components/insteon/fan.py b/homeassistant/components/insteon/fan.py
index 3327f9df5eb..a641d353450 100644
--- a/homeassistant/components/insteon/fan.py
+++ b/homeassistant/components/insteon/fan.py
@@ -8,6 +8,7 @@ from homeassistant.components.fan import (
     SUPPORT_SET_SPEED,
     FanEntity,
 )
+from homeassistant.core import callback
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.util.percentage import (
     percentage_to_ranged_value,
@@ -24,15 +25,16 @@ SPEED_RANGE = (1, FanSpeed.HIGH)  # off is not included
 async def async_setup_entry(hass, config_entry, async_add_entities):
     """Set up the Insteon fans from a config entry."""
 
-    def add_entities(discovery_info=None):
+    @callback
+    def async_add_insteon_fan_entities(discovery_info=None):
         """Add the Insteon entities for the platform."""
         async_add_insteon_entities(
             hass, FAN_DOMAIN, InsteonFanEntity, async_add_entities, discovery_info
         )
 
     signal = f"{SIGNAL_ADD_ENTITIES}_{FAN_DOMAIN}"
-    async_dispatcher_connect(hass, signal, add_entities)
-    add_entities()
+    async_dispatcher_connect(hass, signal, async_add_insteon_fan_entities)
+    async_add_insteon_fan_entities()
 
 
 class InsteonFanEntity(InsteonEntity, FanEntity):
diff --git a/homeassistant/components/insteon/light.py b/homeassistant/components/insteon/light.py
index f49dafed2fe..206aa078dc3 100644
--- a/homeassistant/components/insteon/light.py
+++ b/homeassistant/components/insteon/light.py
@@ -6,6 +6,7 @@ from homeassistant.components.light import (
     SUPPORT_BRIGHTNESS,
     LightEntity,
 )
+from homeassistant.core import callback
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 
 from .const import SIGNAL_ADD_ENTITIES
@@ -18,15 +19,16 @@ MAX_BRIGHTNESS = 255
 async def async_setup_entry(hass, config_entry, async_add_entities):
     """Set up the Insteon lights from a config entry."""
 
-    def add_entities(discovery_info=None):
+    @callback
+    def async_add_insteon_light_entities(discovery_info=None):
         """Add the Insteon entities for the platform."""
         async_add_insteon_entities(
             hass, LIGHT_DOMAIN, InsteonDimmerEntity, async_add_entities, discovery_info
         )
 
     signal = f"{SIGNAL_ADD_ENTITIES}_{LIGHT_DOMAIN}"
-    async_dispatcher_connect(hass, signal, add_entities)
-    add_entities()
+    async_dispatcher_connect(hass, signal, async_add_insteon_light_entities)
+    async_add_insteon_light_entities()
 
 
 class InsteonDimmerEntity(InsteonEntity, LightEntity):
diff --git a/homeassistant/components/insteon/switch.py b/homeassistant/components/insteon/switch.py
index 43430ceb7a0..0a1a0253b1d 100644
--- a/homeassistant/components/insteon/switch.py
+++ b/homeassistant/components/insteon/switch.py
@@ -1,5 +1,6 @@
 """Support for INSTEON dimmers via PowerLinc Modem."""
 from homeassistant.components.switch import DOMAIN as SWITCH_DOMAIN, SwitchEntity
+from homeassistant.core import callback
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 
 from .const import SIGNAL_ADD_ENTITIES
@@ -10,15 +11,16 @@ from .utils import async_add_insteon_entities
 async def async_setup_entry(hass, config_entry, async_add_entities):
     """Set up the Insteon switches from a config entry."""
 
-    def add_entities(discovery_info=None):
+    @callback
+    def async_add_insteon_switch_entities(discovery_info=None):
         """Add the Insteon entities for the platform."""
         async_add_insteon_entities(
             hass, SWITCH_DOMAIN, InsteonSwitchEntity, async_add_entities, discovery_info
         )
 
     signal = f"{SIGNAL_ADD_ENTITIES}_{SWITCH_DOMAIN}"
-    async_dispatcher_connect(hass, signal, add_entities)
-    add_entities()
+    async_dispatcher_connect(hass, signal, async_add_insteon_switch_entities)
+    async_add_insteon_switch_entities()
 
 
 class InsteonSwitchEntity(InsteonEntity, SwitchEntity):