diff --git a/homeassistant/components/technove/config_flow.py b/homeassistant/components/technove/config_flow.py
index 7ad9829b631..0949b859884 100644
--- a/homeassistant/components/technove/config_flow.py
+++ b/homeassistant/components/technove/config_flow.py
@@ -6,7 +6,11 @@ from technove import Station as TechnoVEStation, TechnoVE, TechnoVEConnectionErr
 import voluptuous as vol
 
 from homeassistant.components import onboarding
-from homeassistant.config_entries import ConfigFlow, ConfigFlowResult
+from homeassistant.config_entries import (
+    SOURCE_RECONFIGURE,
+    ConfigFlow,
+    ConfigFlowResult,
+)
 from homeassistant.const import CONF_HOST, CONF_MAC
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 from homeassistant.helpers.service_info.zeroconf import ZeroconfServiceInfo
@@ -32,7 +36,23 @@ class TechnoVEConfigFlow(ConfigFlow, domain=DOMAIN):
             except TechnoVEConnectionError:
                 errors["base"] = "cannot_connect"
             else:
-                await self.async_set_unique_id(station.info.mac_address)
+                await self.async_set_unique_id(
+                    station.info.mac_address, raise_on_progress=False
+                )
+                if self.source == SOURCE_RECONFIGURE:
+                    entry = self._get_reconfigure_entry()
+                    assert entry.unique_id is not None
+                    self._abort_if_unique_id_mismatch(
+                        reason="unique_id_mismatch",
+                        description_placeholders={
+                            "expected_mac": entry.unique_id.upper(),
+                            "actual_mac": station.info.mac_address.upper(),
+                        },
+                    )
+                    return self.async_update_reload_and_abort(
+                        entry,
+                        data_updates={CONF_HOST: user_input[CONF_HOST]},
+                    )
                 self._abort_if_unique_id_configured(
                     updates={CONF_HOST: user_input[CONF_HOST]}
                 )
@@ -43,12 +63,25 @@ class TechnoVEConfigFlow(ConfigFlow, domain=DOMAIN):
                     },
                 )
 
+        data_schema = vol.Schema({vol.Required(CONF_HOST): str})
+        if self.source == SOURCE_RECONFIGURE:
+            data_schema = self.add_suggested_values_to_schema(
+                data_schema,
+                self._get_reconfigure_entry().data,
+            )
+
         return self.async_show_form(
             step_id="user",
-            data_schema=vol.Schema({vol.Required(CONF_HOST): str}),
+            data_schema=data_schema,
             errors=errors,
         )
 
+    async def async_step_reconfigure(
+        self, user_input: dict[str, Any] | None = None
+    ) -> ConfigFlowResult:
+        """Handle reconfiguration of the TechnoVE station."""
+        return await self.async_step_user(user_input)
+
     async def async_step_zeroconf(
         self, discovery_info: ZeroconfServiceInfo
     ) -> ConfigFlowResult:
diff --git a/homeassistant/components/technove/strings.json b/homeassistant/components/technove/strings.json
index 351ee78b966..c2e27854ccc 100644
--- a/homeassistant/components/technove/strings.json
+++ b/homeassistant/components/technove/strings.json
@@ -2,7 +2,9 @@
   "config": {
     "abort": {
       "already_configured": "[%key:common::config_flow::abort::already_configured_device%]",
-      "cannot_connect": "[%key:common::config_flow::error::cannot_connect%]"
+      "cannot_connect": "[%key:common::config_flow::error::cannot_connect%]",
+      "reconfigure_successful": "[%key:common::config_flow::abort::reconfigure_successful%]",
+      "unique_id_mismatch": "MAC address does not match the configured device. Expected to connect to device with MAC: `{expected_mac}`, but connected to device with MAC: `{actual_mac}`. \n\nPlease ensure you reconfigure against the same device."
     },
     "error": {
       "cannot_connect": "[%key:common::config_flow::error::cannot_connect%]"
diff --git a/tests/components/technove/test_config_flow.py b/tests/components/technove/test_config_flow.py
index 99a8e231f73..ba4ef452163 100644
--- a/tests/components/technove/test_config_flow.py
+++ b/tests/components/technove/test_config_flow.py
@@ -240,7 +240,6 @@ async def test_zeroconf_without_mac_station_exists_abort(
     assert result.get("reason") == "already_configured"
 
 
-@pytest.mark.usefixtures("mock_technove")
 async def test_zeroconf_with_mac_station_exists_abort(
     hass: HomeAssistant, mock_config_entry: MockConfigEntry, mock_technove: MagicMock
 ) -> None:
@@ -264,3 +263,89 @@ async def test_zeroconf_with_mac_station_exists_abort(
     mock_technove.update.assert_not_called()
     assert result.get("type") is FlowResultType.ABORT
     assert result.get("reason") == "already_configured"
+
+
+@pytest.mark.usefixtures("mock_setup_entry")
+async def test_full_reconfigure_flow_success(
+    hass: HomeAssistant,
+    mock_config_entry: MockConfigEntry,
+    mock_technove: MagicMock,
+) -> None:
+    """Test the full reconfigure flow from start to finish."""
+    mock_config_entry.add_to_hass(hass)
+
+    result = await mock_config_entry.start_reconfigure_flow(hass)
+
+    assert result.get("step_id") == "user"
+    assert result.get("type") is FlowResultType.FORM
+
+    result = await hass.config_entries.flow.async_configure(
+        result["flow_id"], user_input={CONF_HOST: "192.168.1.200"}
+    )
+
+    assert result.get("type") is FlowResultType.ABORT
+    assert result.get("reason") == "reconfigure_successful"
+
+    assert mock_config_entry.data[CONF_HOST] == "192.168.1.200"
+
+
+@pytest.mark.usefixtures("mock_setup_entry")
+async def test_full_reconfigure_flow_unique_id_mismatch(
+    hass: HomeAssistant,
+    mock_config_entry: MockConfigEntry,
+    mock_technove: MagicMock,
+) -> None:
+    """Test reconfiguration failure when the unique ID changes."""
+    mock_config_entry.add_to_hass(hass)
+
+    # Change mac address to simulate a different device
+    device = mock_technove.update.return_value
+    device.info.mac_address = "AA:AA:AA:AA:AA:CC"
+
+    result = await mock_config_entry.start_reconfigure_flow(hass)
+
+    assert result.get("step_id") == "user"
+    assert result.get("type") is FlowResultType.FORM
+
+    result = await hass.config_entries.flow.async_configure(
+        result["flow_id"], user_input={CONF_HOST: "192.168.1.200"}
+    )
+
+    assert result.get("type") is FlowResultType.ABORT
+    assert result.get("reason") == "unique_id_mismatch"
+
+
+@pytest.mark.usefixtures("mock_setup_entry")
+async def test_full_reconfigure_flow_connection_error_and_success(
+    hass: HomeAssistant,
+    mock_config_entry: MockConfigEntry,
+    mock_technove: MagicMock,
+) -> None:
+    """Test reconfigure flow with connection error, then successful recovery."""
+    mock_config_entry.add_to_hass(hass)
+
+    mock_technove.update.side_effect = TechnoVEConnectionError
+
+    result = await mock_config_entry.start_reconfigure_flow(hass)
+
+    assert result.get("step_id") == "user"
+    assert result.get("type") is FlowResultType.FORM
+
+    result = await hass.config_entries.flow.async_configure(
+        result["flow_id"], user_input={CONF_HOST: "192.168.1.200"}
+    )
+
+    assert result.get("type") is FlowResultType.FORM
+    assert result.get("step_id") == "user"
+    assert result.get("errors") == {"base": "cannot_connect"}
+
+    mock_technove.update.side_effect = None
+
+    result = await hass.config_entries.flow.async_configure(
+        result["flow_id"], user_input={CONF_HOST: "192.168.1.200"}
+    )
+
+    assert result.get("type") is FlowResultType.ABORT
+    assert result.get("reason") == "reconfigure_successful"
+
+    assert mock_config_entry.data[CONF_HOST] == "192.168.1.200"