diff --git a/homeassistant/components/zwave_js/config_flow.py b/homeassistant/components/zwave_js/config_flow.py
index 71a349916d3..45b6f0b2a43 100644
--- a/homeassistant/components/zwave_js/config_flow.py
+++ b/homeassistant/components/zwave_js/config_flow.py
@@ -956,6 +956,9 @@ class ZWaveJSConfigFlow(ConfigFlow, domain=DOMAIN):
                     CONF_ADDON_LR_S2_AUTHENTICATED_KEY: self.lr_s2_authenticated_key,
                 }
             )
+            if self.restart_addon:
+                manager = get_addon_manager(self.hass)
+                await manager.async_stop_addon()
 
         self._abort_if_unique_id_configured(
             updates={
@@ -1524,10 +1527,19 @@ class ZWaveJSConfigFlow(ConfigFlow, domain=DOMAIN):
                 # And use the add-on
                 and existing_entry.data.get(CONF_USE_ADDON)
             ):
+                manager = get_addon_manager(self.hass)
                 await self._async_set_addon_config(
                     {CONF_ADDON_SOCKET: discovery_info.socket_path}
                 )
-                # Reloading will sync add-on options to config entry data
+                if self.restart_addon:
+                    await manager.async_stop_addon()
+                self.hass.config_entries.async_update_entry(
+                    existing_entry,
+                    data={
+                        **existing_entry.data,
+                        CONF_SOCKET_PATH: discovery_info.socket_path,
+                    },
+                )
                 self.hass.config_entries.async_schedule_reload(existing_entry.entry_id)
                 return self.async_abort(reason="already_configured")
 
diff --git a/tests/components/zwave_js/test_config_flow.py b/tests/components/zwave_js/test_config_flow.py
index 9b006e008af..30c1de77076 100644
--- a/tests/components/zwave_js/test_config_flow.py
+++ b/tests/components/zwave_js/test_config_flow.py
@@ -1287,11 +1287,12 @@ async def test_esphome_discovery_intent_custom(
     assert len(mock_setup_entry.mock_calls) == 1
 
 
-@pytest.mark.usefixtures("supervisor", "addon_installed", "addon_running", "addon_info")
+@pytest.mark.usefixtures("supervisor", "addon_running", "addon_running", "addon_info")
 async def test_esphome_discovery_intent_recommended(
     hass: HomeAssistant,
     set_addon_options: AsyncMock,
     addon_options: dict,
+    stop_addon: AsyncMock,
 ) -> None:
     """Test ESPHome discovery success path."""
     addon_options.update(
@@ -1359,15 +1360,18 @@ async def test_esphome_discovery_intent_recommended(
             }
         ),
     )
+    assert stop_addon.call_count == 1
+    assert stop_addon.call_args == call("core_zwave_js")
     assert len(mock_setup.mock_calls) == 1
     assert len(mock_setup_entry.mock_calls) == 1
 
 
-@pytest.mark.usefixtures("supervisor", "addon_installed", "addon_info")
+@pytest.mark.usefixtures("supervisor", "addon_running", "addon_info")
 async def test_esphome_discovery_already_configured(
     hass: HomeAssistant,
     set_addon_options: AsyncMock,
     addon_options: dict[str, Any],
+    stop_addon: AsyncMock,
 ) -> None:
     """Test ESPHome discovery success path."""
     addon_options[CONF_ADDON_SOCKET] = "esphome://existing-device:6053"
@@ -1408,6 +1412,13 @@ async def test_esphome_discovery_already_configured(
             }
         ),
     )
+    assert entry.data == {
+        CONF_SOCKET_PATH: "esphome://192.168.1.100:6053",
+        "use_addon": True,
+        "integration_created_addon": True,
+    }
+    assert stop_addon.call_count == 1
+    assert stop_addon.call_args == call("core_zwave_js")
 
 
 @pytest.mark.usefixtures("supervisor", "addon_not_installed", "addon_info")