diff --git a/homeassistant/components/modbus/const.py b/homeassistant/components/modbus/const.py
index ca4edba211d0..2b0acc6675c7 100644
--- a/homeassistant/components/modbus/const.py
+++ b/homeassistant/components/modbus/const.py
@@ -148,11 +148,9 @@ CALL_TYPE_X_REGISTER_HOLDINGS = "holdings"
 SERVICE_WRITE_COIL = "write_coil"
 SERVICE_WRITE_REGISTER = "write_register"
 SERVICE_STOP = "stop"
-SERVICE_RESTART = "restart"
 
 # dispatcher signals
 SIGNAL_STOP_ENTITY = "modbus.stop"
-SIGNAL_START_ENTITY = "modbus.start"
 
 # integration names
 DEFAULT_HUB = "modbus_hub"
diff --git a/homeassistant/components/modbus/icons.json b/homeassistant/components/modbus/icons.json
index e5940203474e..bd2b5a4b32e3 100644
--- a/homeassistant/components/modbus/icons.json
+++ b/homeassistant/components/modbus/icons.json
@@ -3,9 +3,6 @@
     "reload": {
       "service": "mdi:reload"
     },
-    "restart": {
-      "service": "mdi:restart"
-    },
     "stop": {
       "service": "mdi:stop"
     },
diff --git a/homeassistant/components/modbus/modbus.py b/homeassistant/components/modbus/modbus.py
index 8ad43545d480..2b82af348d60 100644
--- a/homeassistant/components/modbus/modbus.py
+++ b/homeassistant/components/modbus/modbus.py
@@ -349,13 +349,6 @@ class ModbusHub:
         )
         return True
 
-    async def async_restart(self) -> None:
-        """Reconnect client."""
-        if self._client:
-            await self.async_close()
-
-        await self.async_setup()
-
     async def async_close(self) -> None:
         """Disconnect client."""
         self.event_connected.set()
diff --git a/homeassistant/components/modbus/services.yaml b/homeassistant/components/modbus/services.yaml
index 8dafa911ada1..a786767f2402 100644
--- a/homeassistant/components/modbus/services.yaml
+++ b/homeassistant/components/modbus/services.yaml
@@ -54,10 +54,3 @@ stop:
       default: "modbus_hub"
       selector:
         text:
-restart:
-  fields:
-    hub:
-      example: "hub1"
-      default: "modbus_hub"
-      selector:
-        text:
diff --git a/homeassistant/components/modbus/strings.json b/homeassistant/components/modbus/strings.json
index d0d78d726e05..5d93f909fe00 100644
--- a/homeassistant/components/modbus/strings.json
+++ b/homeassistant/components/modbus/strings.json
@@ -26,16 +26,6 @@
       "description": "Reloads all Modbus entities.",
       "name": "[%key:common::action::reload%]"
     },
-    "restart": {
-      "description": "Restarts a Modbus hub (if running, stops then starts).",
-      "fields": {
-        "hub": {
-          "description": "[%key:component::modbus::services::write_coil::fields::hub::description%]",
-          "name": "[%key:component::modbus::services::write_coil::fields::hub::name%]"
-        }
-      },
-      "name": "[%key:common::action::restart%]"
-    },
     "stop": {
       "description": "Stops a Modbus hub.",
       "fields": {