diff --git a/API.md b/API.md
index bbec173cf..08aa71395 100644
--- a/API.md
+++ b/API.md
@@ -303,6 +303,7 @@ Output is the raw Docker log.
 
 - POST `/homeassistant/restart`
 - POST `/homeassistant/options`
+- POST `/homeassistant/check`
 
 ```json
 {
diff --git a/hassio/api/__init__.py b/hassio/api/__init__.py
index 9358c2ec8..645a4fca4 100644
--- a/hassio/api/__init__.py
+++ b/hassio/api/__init__.py
@@ -68,10 +68,11 @@ class RestAPI(object):
         api_hass = APIHomeAssistant(self.config, self.loop, dock_homeassistant)
 
         self.webapp.router.add_get('/homeassistant/info', api_hass.info)
+        self.webapp.router.add_get('/homeassistant/logs', api_hass.logs)
         self.webapp.router.add_post('/homeassistant/options', api_hass.options)
         self.webapp.router.add_post('/homeassistant/update', api_hass.update)
         self.webapp.router.add_post('/homeassistant/restart', api_hass.restart)
-        self.webapp.router.add_get('/homeassistant/logs', api_hass.logs)
+        self.webapp.router.add_post('/homeassistant/check', api_hass.check)
 
     def register_addons(self, addons):
         """Register homeassistant function."""
diff --git a/hassio/api/addons.py b/hassio/api/addons.py
index 3451f81f8..b0dc165f9 100644
--- a/hassio/api/addons.py
+++ b/hassio/api/addons.py
@@ -170,19 +170,13 @@ class APIAddons(object):
 
     @api_process
     def uninstall(self, request):
-        """Uninstall addon.
-
-        Return a coroutine.
-        """
+        """Uninstall addon."""
         addon = self._extract_addon(request)
         return asyncio.shield(addon.uninstall(), loop=self.loop)
 
     @api_process
     def start(self, request):
-        """Start addon.
-
-        Return a coroutine.
-        """
+        """Start addon."""
         addon = self._extract_addon(request)
 
         # check options
@@ -196,10 +190,7 @@ class APIAddons(object):
 
     @api_process
     def stop(self, request):
-        """Stop addon.
-
-        Return a coroutine.
-        """
+        """Stop addon."""
         addon = self._extract_addon(request)
         return asyncio.shield(addon.stop(), loop=self.loop)
 
@@ -218,19 +209,13 @@ class APIAddons(object):
 
     @api_process
     def restart(self, request):
-        """Restart addon.
-
-        Return a coroutine.
-        """
+        """Restart addon."""
         addon = self._extract_addon(request)
         return asyncio.shield(addon.restart(), loop=self.loop)
 
     @api_process_raw(CONTENT_TYPE_BINARY)
     def logs(self, request):
-        """Return logs from addon.
-
-        Return a coroutine.
-        """
+        """Return logs from addon."""
         addon = self._extract_addon(request)
         return addon.logs()
 
diff --git a/hassio/api/homeassistant.py b/hassio/api/homeassistant.py
index 83415b6a0..59558624a 100644
--- a/hassio/api/homeassistant.py
+++ b/hassio/api/homeassistant.py
@@ -73,16 +73,19 @@ class APIHomeAssistant(object):
 
     @api_process
     def restart(self, request):
-        """Restart homeassistant.
-
-        Return a coroutine.
-        """
+        """Restart homeassistant."""
         return asyncio.shield(self.homeassistant.restart(), loop=self.loop)
 
     @api_process_raw(CONTENT_TYPE_BINARY)
     def logs(self, request):
-        """Return homeassistant docker logs.
-
-        Return a coroutine.
-        """
+        """Return homeassistant docker logs."""
         return self.homeassistant.logs()
+
+    @api_process
+    async def check(self, request):
+        """Check config of homeassistant."""
+        code, message = await self.homeassistant.check_config()
+        if not code:
+            raise RuntimeError(message)
+
+        return True
diff --git a/hassio/api/host.py b/hassio/api/host.py
index 39fbbeb78..5815ebf76 100644
--- a/hassio/api/host.py
+++ b/hassio/api/host.py
@@ -59,18 +59,12 @@ class APIHost(object):
 
     @api_process_hostcontrol
     def reboot(self, request):
-        """Reboot host.
-
-        Return a coroutine.
-        """
+        """Reboot host."""
         return self.host_control.reboot()
 
     @api_process_hostcontrol
     def shutdown(self, request):
-        """Poweroff host.
-
-        Return a coroutine.
-        """
+        """Poweroff host."""
         return self.host_control.shutdown()
 
     @api_process_hostcontrol
diff --git a/hassio/api/snapshots.py b/hassio/api/snapshots.py
index 42467acd2..70ec3bf79 100644
--- a/hassio/api/snapshots.py
+++ b/hassio/api/snapshots.py
@@ -112,10 +112,7 @@ class APISnapshots(object):
 
     @api_process
     def restore_full(self, request):
-        """Full-Restore a snapshot.
-
-        Return a coroutine.
-        """
+        """Full-Restore a snapshot."""
         snapshot = self._extract_snapshot(request)
         return asyncio.shield(
             self.snapshots.do_restore_full(snapshot), loop=self.loop)
diff --git a/hassio/api/supervisor.py b/hassio/api/supervisor.py
index 7616fe3ef..3c1e5e09f 100644
--- a/hassio/api/supervisor.py
+++ b/hassio/api/supervisor.py
@@ -121,8 +121,5 @@ class APISupervisor(object):
 
     @api_process_raw(CONTENT_TYPE_BINARY)
     def logs(self, request):
-        """Return supervisor docker logs.
-
-        Return a coroutine.
-        """
+        """Return supervisor docker logs."""
         return self.supervisor.logs()
diff --git a/hassio/dock/__init__.py b/hassio/dock/__init__.py
index 90d0c601d..f166c5502 100644
--- a/hassio/dock/__init__.py
+++ b/hassio/dock/__init__.py
@@ -5,6 +5,7 @@ import logging
 
 import docker
 
+from .util import docker_process
 from ..const import LABEL_VERSION, LABEL_ARCH
 
 _LOGGER = logging.getLogger(__name__)
@@ -52,14 +53,10 @@ class DockerBase(object):
         if need_arch and LABEL_ARCH in metadata['Config']['Labels']:
             self.arch = metadata['Config']['Labels'][LABEL_ARCH]
 
-    async def install(self, tag):
+    @docker_process
+    def install(self, tag):
         """Pull docker image."""
-        if self._lock.locked():
-            _LOGGER.error("Can't excute install while a task is in progress")
-            return False
-
-        async with self._lock:
-            return await self.loop.run_in_executor(None, self._install, tag)
+        return self.loop.run_in_executor(None, self._install, tag)
 
     def _install(self, tag):
         """Pull docker image.
@@ -80,10 +77,7 @@ class DockerBase(object):
         return True
 
     def exists(self):
-        """Return True if docker image exists in local repo.
-
-        Return a Future.
-        """
+        """Return True if docker image exists in local repo."""
         return self.loop.run_in_executor(None, self._exists)
 
     def _exists(self):
@@ -126,14 +120,10 @@ class DockerBase(object):
 
         return True
 
-    async def attach(self):
+    @docker_process
+    def attach(self):
         """Attach to running docker container."""
-        if self._lock.locked():
-            _LOGGER.error("Can't excute attach while a task is in progress")
-            return False
-
-        async with self._lock:
-            return await self.loop.run_in_executor(None, self._attach)
+        return self.loop.run_in_executor(None, self._attach)
 
     def _attach(self):
         """Attach to running docker container.
@@ -154,14 +144,10 @@ class DockerBase(object):
 
         return True
 
-    async def run(self):
+    @docker_process
+    def run(self):
         """Run docker image."""
-        if self._lock.locked():
-            _LOGGER.error("Can't excute run while a task is in progress")
-            return False
-
-        async with self._lock:
-            return await self.loop.run_in_executor(None, self._run)
+        return self.loop.run_in_executor(None, self._run)
 
     def _run(self):
         """Run docker image.
@@ -170,15 +156,10 @@ class DockerBase(object):
         """
         raise NotImplementedError()
 
-    async def stop(self):
+    @docker_process
+    def stop(self):
         """Stop/remove docker container."""
-        if self._lock.locked():
-            _LOGGER.error("Can't excute stop while a task is in progress")
-            return False
-
-        async with self._lock:
-            await self.loop.run_in_executor(None, self._stop)
-            return True
+        return self.loop.run_in_executor(None, self._stop)
 
     def _stop(self):
         """Stop/remove and remove docker container.
@@ -188,7 +169,7 @@ class DockerBase(object):
         try:
             container = self.dock.containers.get(self.name)
         except docker.errors.DockerException:
-            return
+            return False
 
         if container.status == 'running':
             _LOGGER.info("Stop %s docker application", self.image)
@@ -199,14 +180,12 @@ class DockerBase(object):
             _LOGGER.info("Clean %s docker application", self.image)
             container.remove(force=True)
 
-    async def remove(self):
-        """Remove docker images."""
-        if self._lock.locked():
-            _LOGGER.error("Can't excute remove while a task is in progress")
-            return False
+        return True
 
-        async with self._lock:
-            return await self.loop.run_in_executor(None, self._remove)
+    @docker_process
+    def remove(self):
+        """Remove docker images."""
+        return self.loop.run_in_executor(None, self._remove)
 
     def _remove(self):
         """remove docker images.
@@ -235,16 +214,13 @@ class DockerBase(object):
         # clean metadata
         self.version = None
         self.arch = None
+
         return True
 
-    async def update(self, tag):
+    @docker_process
+    def update(self, tag):
         """Update a docker image."""
-        if self._lock.locked():
-            _LOGGER.error("Can't excute update while a task is in progress")
-            return False
-
-        async with self._lock:
-            return await self.loop.run_in_executor(None, self._update, tag)
+        return self.loop.run_in_executor(None, self._update, tag)
 
     def _update(self, tag):
         """Update a docker image.
@@ -258,22 +234,16 @@ class DockerBase(object):
         if not self._install(tag):
             return False
 
-        # container
+        # stop container & cleanup
         self._stop()
-
-        # cleanup images
         self._cleanup()
 
         return True
 
-    async def logs(self):
+    @docker_process
+    def logs(self):
         """Return docker logs of container."""
-        if self._lock.locked():
-            _LOGGER.error("Can't excute logs while a task is in progress")
-            return b""
-
-        async with self._lock:
-            return await self.loop.run_in_executor(None, self._logs)
+        return self.loop.run_in_executor(None, self._logs)
 
     def _logs(self):
         """Return docker logs of container.
@@ -290,14 +260,10 @@ class DockerBase(object):
         except docker.errors.DockerException as err:
             _LOGGER.warning("Can't grap logs from %s -> %s", self.image, err)
 
-    async def restart(self):
+    @docker_process
+    def restart(self):
         """Restart docker container."""
-        if self._lock.locked():
-            _LOGGER.error("Can't excute restart while a task is in progress")
-            return False
-
-        async with self._lock:
-            return await self.loop.run_in_executor(None, self._restart)
+        return self.loop.run_in_executor(None, self._restart)
 
     def _restart(self):
         """Restart docker container.
@@ -319,14 +285,10 @@ class DockerBase(object):
 
         return True
 
-    async def cleanup(self):
+    @docker_process
+    def cleanup(self):
         """Check if old version exists and cleanup."""
-        if self._lock.locked():
-            _LOGGER.error("Can't excute cleanup while a task is in progress")
-            return False
-
-        async with self._lock:
-            await self.loop.run_in_executor(None, self._cleanup)
+        return self.loop.run_in_executor(None, self._cleanup)
 
     def _cleanup(self):
         """Check if old version exists and cleanup.
@@ -337,7 +299,7 @@ class DockerBase(object):
             latest = self.dock.images.get(self.image)
         except docker.errors.DockerException:
             _LOGGER.warning("Can't find %s for cleanup", self.image)
-            return
+            return False
 
         for image in self.dock.images.list(name=self.image):
             if latest.id == image.id:
@@ -346,3 +308,17 @@ class DockerBase(object):
             with suppress(docker.errors.DockerException):
                 _LOGGER.info("Cleanup docker images: %s", image.tags)
                 self.dock.images.remove(image.id, force=True)
+
+        return True
+
+    @docker_process
+    def execute_command(self, command):
+        """Create a temporary container and run command."""
+        return self.loop.run_in_executor(None, self._execute_command, command)
+
+    def _execute_command(self, command):
+        """Create a temporary container and run command.
+
+        Need run inside executor.
+        """
+        raise NotImplementedError()
diff --git a/hassio/dock/addon.py b/hassio/dock/addon.py
index b9e56829f..bbc119960 100644
--- a/hassio/dock/addon.py
+++ b/hassio/dock/addon.py
@@ -7,7 +7,7 @@ import docker
 import requests
 
 from . import DockerBase
-from .util import dockerfile_template
+from .util import dockerfile_template, docker_process
 from ..const import (
     META_ADDON, MAP_CONFIG, MAP_SSL, MAP_ADDONS, MAP_BACKUP, MAP_SHARE)
 
@@ -218,15 +218,10 @@ class DockerAddon(DockerBase):
         finally:
             shutil.rmtree(str(build_dir), ignore_errors=True)
 
-    async def export_image(self, path):
+    @docker_process
+    def export_image(self, path):
         """Export current images into a tar file."""
-        if self._lock.locked():
-            _LOGGER.error("Can't excute export while a task is in progress")
-            return False
-
-        async with self._lock:
-            return await self.loop.run_in_executor(
-                None, self._export_image, path)
+        return self.loop.run_in_executor(None, self._export_image, path)
 
     def _export_image(self, tar_file):
         """Export current images into a tar file.
@@ -250,15 +245,10 @@ class DockerAddon(DockerBase):
         _LOGGER.info("Export image %s to %s", self.image, tar_file)
         return True
 
-    async def import_image(self, path, tag):
+    @docker_process
+    def import_image(self, path, tag):
         """Import a tar file as image."""
-        if self._lock.locked():
-            _LOGGER.error("Can't excute import while a task is in progress")
-            return False
-
-        async with self._lock:
-            return await self.loop.run_in_executor(
-                None, self._import_image, path, tag)
+        return self.loop.run_in_executor(None, self._import_image, path, tag)
 
     def _import_image(self, tar_file, tag):
         """Import a tar file as image.
diff --git a/hassio/dock/homeassistant.py b/hassio/dock/homeassistant.py
index 5e485f2a3..ee9ee3460 100644
--- a/hassio/dock/homeassistant.py
+++ b/hassio/dock/homeassistant.py
@@ -1,4 +1,5 @@
 """Init file for HassIO docker object."""
+from contextlib import suppress
 import logging
 
 import docker
@@ -66,7 +67,8 @@ class DockerHomeAssistant(DockerBase):
                         {'bind': '/ssl', 'mode': 'ro'},
                     str(self.config.path_extern_share):
                         {'bind': '/share', 'mode': 'rw'},
-                })
+                }
+            )
 
         except docker.errors.DockerException as err:
             _LOGGER.error("Can't run %s -> %s", self.image, err)
@@ -75,3 +77,41 @@ class DockerHomeAssistant(DockerBase):
         _LOGGER.info(
             "Start homeassistant %s with version %s", self.image, self.version)
         return True
+
+    def _execute_command(self, command):
+        """Create a temporary container and run command.
+
+        Need run inside executor.
+        """
+        _LOGGER.info("Run command '%s' on %s", command, self.image)
+        try:
+            container = self.dock.containers.run(
+                self.image,
+                command=command,
+                detach=True,
+                stdout=True,
+                stderr=True,
+                environment={
+                    'TZ': self.config.timezone,
+                },
+                volumes={
+                    str(self.config.path_extern_config):
+                        {'bind': '/config', 'mode': 'ro'},
+                    str(self.config.path_extern_ssl):
+                        {'bind': '/ssl', 'mode': 'ro'},
+                }
+            )
+
+            # wait until command is done
+            container.wait()
+            output = container.logs()
+
+        except docker.errors.DockerException as err:
+            _LOGGER.error("Can't execute command -> %s", err)
+            return b""
+
+        # cleanup container
+        with suppress(docker.errors.DockerException):
+            container.remove(force=True)
+
+        return output
diff --git a/hassio/dock/supervisor.py b/hassio/dock/supervisor.py
index 7e9dabc7b..abc491caf 100644
--- a/hassio/dock/supervisor.py
+++ b/hassio/dock/supervisor.py
@@ -3,6 +3,7 @@ import logging
 import os
 
 from . import DockerBase
+from .util import docker_process
 from ..const import RESTART_EXIT_CODE
 
 _LOGGER = logging.getLogger(__name__)
@@ -21,20 +22,16 @@ class DockerSupervisor(DockerBase):
         """Return name of docker container."""
         return os.environ['SUPERVISOR_NAME']
 
+    @docker_process
     async def update(self, tag):
         """Update a supervisor docker image."""
-        if self._lock.locked():
-            _LOGGER.error("Can't excute update while a task is in progress")
-            return False
-
         _LOGGER.info("Update supervisor docker to %s:%s", self.image, tag)
 
-        async with self._lock:
-            if await self.loop.run_in_executor(None, self._install, tag):
-                self.loop.create_task(self.stop_callback(RESTART_EXIT_CODE))
-                return True
+        if await self.loop.run_in_executor(None, self._install, tag):
+            self.loop.create_task(self.stop_callback(RESTART_EXIT_CODE))
+            return True
 
-            return False
+        return False
 
     async def run(self):
         """Run docker image."""
diff --git a/hassio/dock/util.py b/hassio/dock/util.py
index fa46db88f..1f7ccf48f 100644
--- a/hassio/dock/util.py
+++ b/hassio/dock/util.py
@@ -1,8 +1,10 @@
 """HassIO docker utilitys."""
+import logging
 import re
 
 from ..const import ARCH_AARCH64, ARCH_ARMHF, ARCH_I386, ARCH_AMD64
 
+_LOGGER = logging.getLogger(__name__)
 
 HASSIO_BASE_IMAGE = {
     ARCH_ARMHF: "homeassistant/armhf-base:latest",
@@ -40,3 +42,19 @@ def create_metadata(version, arch, meta_type):
     return ('LABEL io.hass.version="{}" '
             'io.hass.arch="{}" '
             'io.hass.type="{}"').format(version, arch, meta_type)
+
+
+# pylint: disable=protected-access
+def docker_process(method):
+    """Wrap function with only run once."""
+    async def wrap_api(api, *args, **kwargs):
+        """Return api wrapper."""
+        if api._lock.locked():
+            _LOGGER.error(
+                "Can't excute %s while a task is in progress", method.__name__)
+            return False
+
+        async with api._lock:
+            return await method(api, *args, **kwargs)
+
+    return wrap_api
diff --git a/hassio/homeassistant.py b/hassio/homeassistant.py
index ad0e34ce3..5e2f044f0 100644
--- a/hassio/homeassistant.py
+++ b/hassio/homeassistant.py
@@ -2,16 +2,19 @@
 import asyncio
 import logging
 import os
+import re
 
 from .const import (
     FILE_HASSIO_HOMEASSISTANT, ATTR_DEVICES, ATTR_IMAGE, ATTR_LAST_VERSION,
     ATTR_VERSION)
 from .dock.homeassistant import DockerHomeAssistant
-from .tools import JsonConfig
+from .tools import JsonConfig, convert_to_ascii
 from .validate import SCHEMA_HASS_CONFIG
 
 _LOGGER = logging.getLogger(__name__)
 
+RE_CONFIG_CHECK = re.compile(r"error", re.IGNORECASE)
+
 
 class HomeAssistant(JsonConfig):
     """Hass core object for handle it."""
@@ -165,3 +168,20 @@ class HomeAssistant(JsonConfig):
     def in_progress(self):
         """Return True if a task is in progress."""
         return self.docker.in_progress
+
+    async def check_config(self):
+        """Run homeassistant config check."""
+        log = await self.docker.execute_command(
+            "python3 -m homeassistant -c /config --script check_config"
+        )
+
+        # if not valid
+        if not log:
+            return (False, "")
+
+        # parse output
+        log = convert_to_ascii(log)
+        if RE_CONFIG_CHECK.search(log):
+            return (False, log)
+
+        return (True, log)
diff --git a/hassio/tools.py b/hassio/tools.py
index 6832b22df..65891cfb5 100644
--- a/hassio/tools.py
+++ b/hassio/tools.py
@@ -5,6 +5,7 @@ from datetime import datetime
 import json
 import logging
 import socket
+import re
 
 import aiohttp
 import async_timeout
@@ -15,6 +16,8 @@ _LOGGER = logging.getLogger(__name__)
 
 FREEGEOIP_URL = "https://freegeoip.io/json/"
 
+RE_STRING = re.compile(r"\x1b(\[.*?[@-~]|\].*?(\x07|\x1b\\))")
+
 
 def get_local_ip(loop):
     """Retrieve local IP address.
@@ -68,6 +71,11 @@ async def fetch_timezone(websession):
     return data.get('time_zone', 'UTC')
 
 
+def convert_to_ascii(raw):
+    """Convert binary to ascii and remove colors."""
+    return RE_STRING.sub("", raw.decode())
+
+
 class JsonConfig(object):
     """Hass core object for handle it."""