diff --git a/homeassistant/components/mqtt/__init__.py b/homeassistant/components/mqtt/__init__.py
index e3605cb8664..119c9b520d7 100644
--- a/homeassistant/components/mqtt/__init__.py
+++ b/homeassistant/components/mqtt/__init__.py
@@ -1,5 +1,6 @@
 """Support for MQTT message handling."""
 import asyncio
+import sys
 from functools import partial, wraps
 import inspect
 from itertools import groupby
@@ -15,6 +16,8 @@ from typing import Any, Callable, List, Optional, Union
 import attr
 import requests.certs
 import voluptuous as vol
+import paho.mqtt.client as mqtt
+from paho.mqtt.matcher import MQTTMatcher
 
 from homeassistant import config_entries
 from homeassistant.components import websocket_api
@@ -36,6 +39,7 @@ from homeassistant.exceptions import (
     ConfigEntryNotReady,
 )
 from homeassistant.helpers import config_validation as cv, template
+from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.typing import ConfigType, HomeAssistantType, ServiceDataType
 from homeassistant.loader import bind_hass
@@ -50,7 +54,12 @@ from .const import (
     DEFAULT_DISCOVERY,
     CONF_STATE_TOPIC,
     ATTR_DISCOVERY_HASH,
+    PROTOCOL_311,
+    DEFAULT_QOS,
 )
+from .discovery import MQTT_DISCOVERY_UPDATED, clear_discovery_hash
+from .models import PublishPayloadType, Message, MessageCallbackType
+from .subscription import async_subscribe_topics, async_unsubscribe_topics
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -95,11 +104,9 @@ CONF_VIA_DEVICE = "via_device"
 CONF_DEPRECATED_VIA_HUB = "via_hub"
 
 PROTOCOL_31 = "3.1"
-PROTOCOL_311 = "3.1.1"
 
 DEFAULT_PORT = 1883
 DEFAULT_KEEPALIVE = 60
-DEFAULT_QOS = 0
 DEFAULT_RETAIN = False
 DEFAULT_PROTOCOL = PROTOCOL_311
 DEFAULT_DISCOVERY_PREFIX = "homeassistant"
@@ -329,23 +336,9 @@ MQTT_PUBLISH_SCHEMA = vol.Schema(
 
 
 # pylint: disable=invalid-name
-PublishPayloadType = Union[str, bytes, int, float, None]
 SubscribePayloadType = Union[str, bytes]  # Only bytes if encoding is None
 
 
-@attr.s(slots=True, frozen=True)
-class Message:
-    """MQTT Message."""
-
-    topic = attr.ib(type=str)
-    payload = attr.ib(type=PublishPayloadType)
-    qos = attr.ib(type=int)
-    retain = attr.ib(type=bool)
-
-
-MessageCallbackType = Callable[[Message], None]
-
-
 def _build_publish_data(topic: Any, qos: int, retain: bool) -> ServiceDataType:
     """Build the arguments for the publish service without the payload."""
     data = {ATTR_TOPIC: topic}
@@ -629,8 +622,6 @@ async def async_setup_entry(hass, entry):
     elif conf_tls_version == "1.0":
         tls_version = ssl.PROTOCOL_TLSv1
     else:
-        import sys
-
         # Python3.6 supports automatic negotiation of highest TLS version
         if sys.hexversion >= 0x03060000:
             tls_version = ssl.PROTOCOL_TLS  # pylint: disable=no-member
@@ -735,8 +726,6 @@ class MQTT:
         tls_version: Optional[int],
     ) -> None:
         """Initialize Home Assistant MQTT client."""
-        import paho.mqtt.client as mqtt
-
         self.hass = hass
         self.broker = broker
         self.port = port
@@ -808,8 +797,6 @@ class MQTT:
             return CONNECTION_FAILED_RECOVERABLE
 
         if result != 0:
-            import paho.mqtt.client as mqtt
-
             _LOGGER.error("Failed to connect: %s", mqtt.error_string(result))
             return CONNECTION_FAILED
 
@@ -891,8 +878,6 @@ class MQTT:
         Resubscribe to all topics we were subscribed to and publish birth
         message.
         """
-        import paho.mqtt.client as mqtt
-
         if result_code != mqtt.CONNACK_ACCEPTED:
             _LOGGER.error(
                 "Unable to connect to the MQTT broker: %s",
@@ -984,8 +969,6 @@ class MQTT:
 def _raise_on_error(result_code: int) -> None:
     """Raise error if error result."""
     if result_code != 0:
-        import paho.mqtt.client as mqtt
-
         raise HomeAssistantError(
             "Error talking to MQTT: {}".format(mqtt.error_string(result_code))
         )
@@ -993,8 +976,6 @@ def _raise_on_error(result_code: int) -> None:
 
 def _match_topic(subscription: str, topic: str) -> bool:
     """Test if topic matches subscription."""
-    from paho.mqtt.matcher import MQTTMatcher
-
     matcher = MQTTMatcher()
     matcher[subscription] = True
     try:
@@ -1028,8 +1009,6 @@ class MqttAttributes(Entity):
 
     async def _attributes_subscribe_topics(self):
         """(Re)Subscribe to topics."""
-        from .subscription import async_subscribe_topics
-
         attr_tpl = self._attributes_config.get(CONF_JSON_ATTRS_TEMPLATE)
         if attr_tpl is not None:
             attr_tpl.hass = self.hass
@@ -1065,8 +1044,6 @@ class MqttAttributes(Entity):
 
     async def async_will_remove_from_hass(self):
         """Unsubscribe when removed."""
-        from .subscription import async_unsubscribe_topics
-
         self._attributes_sub_state = await async_unsubscribe_topics(
             self.hass, self._attributes_sub_state
         )
@@ -1102,7 +1079,6 @@ class MqttAvailability(Entity):
 
     async def _availability_subscribe_topics(self):
         """(Re)Subscribe to topics."""
-        from .subscription import async_subscribe_topics
 
         @callback
         def availability_message_received(msg: Message) -> None:
@@ -1128,8 +1104,6 @@ class MqttAvailability(Entity):
 
     async def async_will_remove_from_hass(self):
         """Unsubscribe when removed."""
-        from .subscription import async_unsubscribe_topics
-
         self._availability_sub_state = await async_unsubscribe_topics(
             self.hass, self._availability_sub_state
         )
@@ -1154,9 +1128,6 @@ class MqttDiscoveryUpdate(Entity):
         """Subscribe to discovery updates."""
         await super().async_added_to_hass()
 
-        from homeassistant.helpers.dispatcher import async_dispatcher_connect
-        from .discovery import MQTT_DISCOVERY_UPDATED, clear_discovery_hash
-
         @callback
         def discovery_callback(payload):
             """Handle discovery update."""
diff --git a/homeassistant/components/mqtt/config_flow.py b/homeassistant/components/mqtt/config_flow.py
index d3c6ee819b5..a8a378e723c 100644
--- a/homeassistant/components/mqtt/config_flow.py
+++ b/homeassistant/components/mqtt/config_flow.py
@@ -3,6 +3,7 @@ from collections import OrderedDict
 import queue
 
 import voluptuous as vol
+import paho.mqtt.client as mqtt
 
 from homeassistant import config_entries
 from homeassistant.const import (
@@ -125,8 +126,6 @@ class FlowHandler(config_entries.ConfigFlow):
 
 def try_connection(broker, port, username, password, protocol="3.1"):
     """Test if we can connect to an MQTT broker."""
-    import paho.mqtt.client as mqtt
-
     if protocol == "3.1":
         proto = mqtt.MQTTv31
     else:
diff --git a/homeassistant/components/mqtt/const.py b/homeassistant/components/mqtt/const.py
index b365ee9d33e..3234bebbfc1 100644
--- a/homeassistant/components/mqtt/const.py
+++ b/homeassistant/components/mqtt/const.py
@@ -5,3 +5,5 @@ DEFAULT_DISCOVERY = False
 
 ATTR_DISCOVERY_HASH = "discovery_hash"
 CONF_STATE_TOPIC = "state_topic"
+PROTOCOL_311 = "3.1.1"
+DEFAULT_QOS = 0
diff --git a/homeassistant/components/mqtt/light/__init__.py b/homeassistant/components/mqtt/light/__init__.py
index 688cef03467..95a850fb9e8 100644
--- a/homeassistant/components/mqtt/light/__init__.py
+++ b/homeassistant/components/mqtt/light/__init__.py
@@ -16,34 +16,24 @@ from homeassistant.components.mqtt.discovery import (
 )
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.helpers.typing import HomeAssistantType, ConfigType
+from .schema import CONF_SCHEMA, MQTT_LIGHT_SCHEMA_SCHEMA
+from .schema_basic import PLATFORM_SCHEMA_BASIC, async_setup_entity_basic
+from .schema_json import PLATFORM_SCHEMA_JSON, async_setup_entity_json
+from .schema_template import PLATFORM_SCHEMA_TEMPLATE, async_setup_entity_template
 
 _LOGGER = logging.getLogger(__name__)
 
-CONF_SCHEMA = "schema"
-
 
 def validate_mqtt_light(value):
     """Validate MQTT light schema."""
-    from . import schema_basic
-    from . import schema_json
-    from . import schema_template
-
     schemas = {
-        "basic": schema_basic.PLATFORM_SCHEMA_BASIC,
-        "json": schema_json.PLATFORM_SCHEMA_JSON,
-        "template": schema_template.PLATFORM_SCHEMA_TEMPLATE,
+        "basic": PLATFORM_SCHEMA_BASIC,
+        "json": PLATFORM_SCHEMA_JSON,
+        "template": PLATFORM_SCHEMA_TEMPLATE,
     }
     return schemas[value[CONF_SCHEMA]](value)
 
 
-MQTT_LIGHT_SCHEMA_SCHEMA = vol.Schema(
-    {
-        vol.Optional(CONF_SCHEMA, default="basic"): vol.All(
-            vol.Lower, vol.Any("basic", "json", "template")
-        )
-    }
-)
-
 PLATFORM_SCHEMA = vol.All(
     MQTT_LIGHT_SCHEMA_SCHEMA.extend({}, extra=vol.ALLOW_EXTRA), validate_mqtt_light
 )
@@ -81,14 +71,10 @@ async def _async_setup_entity(
     config, async_add_entities, config_entry=None, discovery_hash=None
 ):
     """Set up a MQTT Light."""
-    from . import schema_basic
-    from . import schema_json
-    from . import schema_template
-
     setup_entity = {
-        "basic": schema_basic.async_setup_entity_basic,
-        "json": schema_json.async_setup_entity_json,
-        "template": schema_template.async_setup_entity_template,
+        "basic": async_setup_entity_basic,
+        "json": async_setup_entity_json,
+        "template": async_setup_entity_template,
     }
     await setup_entity[config[CONF_SCHEMA]](
         config, async_add_entities, config_entry, discovery_hash
diff --git a/homeassistant/components/mqtt/light/schema.py b/homeassistant/components/mqtt/light/schema.py
new file mode 100644
index 00000000000..a7ab5e986a7
--- /dev/null
+++ b/homeassistant/components/mqtt/light/schema.py
@@ -0,0 +1,12 @@
+"""Shared schema code."""
+import voluptuous as vol
+
+CONF_SCHEMA = "schema"
+
+MQTT_LIGHT_SCHEMA_SCHEMA = vol.Schema(
+    {
+        vol.Optional(CONF_SCHEMA, default="basic"): vol.All(
+            vol.Lower, vol.Any("basic", "json", "template")
+        )
+    }
+)
diff --git a/homeassistant/components/mqtt/light/schema_basic.py b/homeassistant/components/mqtt/light/schema_basic.py
index 216762f9b2b..829809dd9c3 100644
--- a/homeassistant/components/mqtt/light/schema_basic.py
+++ b/homeassistant/components/mqtt/light/schema_basic.py
@@ -56,7 +56,7 @@ from homeassistant.helpers.restore_state import RestoreEntity
 import homeassistant.helpers.config_validation as cv
 import homeassistant.util.color as color_util
 
-from . import MQTT_LIGHT_SCHEMA_SCHEMA
+from .schema import MQTT_LIGHT_SCHEMA_SCHEMA
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/mqtt/light/schema_json.py b/homeassistant/components/mqtt/light/schema_json.py
index 1e8114a48e6..c4de1edbc3c 100644
--- a/homeassistant/components/mqtt/light/schema_json.py
+++ b/homeassistant/components/mqtt/light/schema_json.py
@@ -59,7 +59,7 @@ from homeassistant.helpers.restore_state import RestoreEntity
 from homeassistant.helpers.typing import ConfigType
 import homeassistant.util.color as color_util
 
-from . import MQTT_LIGHT_SCHEMA_SCHEMA
+from .schema import MQTT_LIGHT_SCHEMA_SCHEMA
 from .schema_basic import CONF_BRIGHTNESS_SCALE
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/mqtt/light/schema_template.py b/homeassistant/components/mqtt/light/schema_template.py
index 410eff6143f..c80ab2f95a7 100644
--- a/homeassistant/components/mqtt/light/schema_template.py
+++ b/homeassistant/components/mqtt/light/schema_template.py
@@ -49,7 +49,7 @@ import homeassistant.helpers.config_validation as cv
 import homeassistant.util.color as color_util
 from homeassistant.helpers.restore_state import RestoreEntity
 
-from . import MQTT_LIGHT_SCHEMA_SCHEMA
+from .schema import MQTT_LIGHT_SCHEMA_SCHEMA
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/mqtt/models.py b/homeassistant/components/mqtt/models.py
new file mode 100644
index 00000000000..5f014aadd08
--- /dev/null
+++ b/homeassistant/components/mqtt/models.py
@@ -0,0 +1,20 @@
+"""Modesl used by multiple MQTT modules."""
+from typing import Union, Callable
+
+import attr
+
+# pylint: disable=invalid-name
+PublishPayloadType = Union[str, bytes, int, float, None]
+
+
+@attr.s(slots=True, frozen=True)
+class Message:
+    """MQTT Message."""
+
+    topic = attr.ib(type=str)
+    payload = attr.ib(type=PublishPayloadType)
+    qos = attr.ib(type=int)
+    retain = attr.ib(type=bool)
+
+
+MessageCallbackType = Callable[[Message], None]
diff --git a/homeassistant/components/mqtt/server.py b/homeassistant/components/mqtt/server.py
index 2c70d18d772..f5d369a75c7 100644
--- a/homeassistant/components/mqtt/server.py
+++ b/homeassistant/components/mqtt/server.py
@@ -4,10 +4,14 @@ import logging
 import tempfile
 
 import voluptuous as vol
+from hbmqtt.broker import Broker, BrokerException
+from passlib.apps import custom_app_context
 
 from homeassistant.const import EVENT_HOMEASSISTANT_STOP
 import homeassistant.helpers.config_validation as cv
 
+from .const import PROTOCOL_311
+
 _LOGGER = logging.getLogger(__name__)
 
 # None allows custom config to be created through generate_config
@@ -33,8 +37,6 @@ def async_start(hass, password, server_config):
 
     This method is a coroutine.
     """
-    from hbmqtt.broker import Broker, BrokerException
-
     passwd = tempfile.NamedTemporaryFile()
 
     gen_server_config, client_config = generate_config(hass, passwd, password)
@@ -63,8 +65,6 @@ def async_start(hass, password, server_config):
 
 def generate_config(hass, passwd, password):
     """Generate a configuration based on current Home Assistant instance."""
-    from . import PROTOCOL_311
-
     config = {
         "listeners": {
             "default": {
@@ -83,8 +83,6 @@ def generate_config(hass, passwd, password):
         username = "homeassistant"
 
         # Encrypt with what hbmqtt uses to verify
-        from passlib.apps import custom_app_context
-
         passwd.write(
             "homeassistant:{}\n".format(custom_app_context.encrypt(password)).encode(
                 "utf-8"
diff --git a/homeassistant/components/mqtt/subscription.py b/homeassistant/components/mqtt/subscription.py
index d85399b5dcb..be48a769a23 100644
--- a/homeassistant/components/mqtt/subscription.py
+++ b/homeassistant/components/mqtt/subscription.py
@@ -8,7 +8,8 @@ from homeassistant.components import mqtt
 from homeassistant.helpers.typing import HomeAssistantType
 from homeassistant.loader import bind_hass
 
-from . import DEFAULT_QOS, MessageCallbackType
+from .const import DEFAULT_QOS
+from .models import MessageCallbackType
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/mqtt/vacuum/__init__.py b/homeassistant/components/mqtt/vacuum/__init__.py
index 5fdaa744ca9..12fd4c51693 100644
--- a/homeassistant/components/mqtt/vacuum/__init__.py
+++ b/homeassistant/components/mqtt/vacuum/__init__.py
@@ -15,51 +15,19 @@ from homeassistant.components.mqtt.discovery import (
     clear_discovery_hash,
 )
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
+from .schema import CONF_SCHEMA, LEGACY, STATE, MQTT_VACUUM_SCHEMA
+from .schema_legacy import PLATFORM_SCHEMA_LEGACY, async_setup_entity_legacy
+from .schema_state import PLATFORM_SCHEMA_STATE, async_setup_entity_state
 
 _LOGGER = logging.getLogger(__name__)
 
-CONF_SCHEMA = "schema"
-LEGACY = "legacy"
-STATE = "state"
-
 
 def validate_mqtt_vacuum(value):
     """Validate MQTT vacuum schema."""
-    from . import schema_legacy
-    from . import schema_state
-
-    schemas = {
-        LEGACY: schema_legacy.PLATFORM_SCHEMA_LEGACY,
-        STATE: schema_state.PLATFORM_SCHEMA_STATE,
-    }
+    schemas = {LEGACY: PLATFORM_SCHEMA_LEGACY, STATE: PLATFORM_SCHEMA_STATE}
     return schemas[value[CONF_SCHEMA]](value)
 
 
-def services_to_strings(services, service_to_string):
-    """Convert SUPPORT_* service bitmask to list of service strings."""
-    strings = []
-    for service in service_to_string:
-        if service & services:
-            strings.append(service_to_string[service])
-    return strings
-
-
-def strings_to_services(strings, string_to_service):
-    """Convert service strings to SUPPORT_* service bitmask."""
-    services = 0
-    for string in strings:
-        services |= string_to_service[string]
-    return services
-
-
-MQTT_VACUUM_SCHEMA = vol.Schema(
-    {
-        vol.Optional(CONF_SCHEMA, default=LEGACY): vol.All(
-            vol.Lower, vol.Any(LEGACY, STATE)
-        )
-    }
-)
-
 PLATFORM_SCHEMA = vol.All(
     MQTT_VACUUM_SCHEMA.extend({}, extra=vol.ALLOW_EXTRA), validate_mqtt_vacuum
 )
@@ -95,13 +63,7 @@ async def _async_setup_entity(
     config, async_add_entities, config_entry, discovery_hash=None
 ):
     """Set up the MQTT vacuum."""
-    from . import schema_legacy
-    from . import schema_state
-
-    setup_entity = {
-        LEGACY: schema_legacy.async_setup_entity_legacy,
-        STATE: schema_state.async_setup_entity_state,
-    }
+    setup_entity = {LEGACY: async_setup_entity_legacy, STATE: async_setup_entity_state}
     await setup_entity[config[CONF_SCHEMA]](
         config, async_add_entities, config_entry, discovery_hash
     )
diff --git a/homeassistant/components/mqtt/vacuum/schema.py b/homeassistant/components/mqtt/vacuum/schema.py
new file mode 100644
index 00000000000..949b5cede9c
--- /dev/null
+++ b/homeassistant/components/mqtt/vacuum/schema.py
@@ -0,0 +1,31 @@
+"""Shared schema code."""
+import voluptuous as vol
+
+CONF_SCHEMA = "schema"
+LEGACY = "legacy"
+STATE = "state"
+
+MQTT_VACUUM_SCHEMA = vol.Schema(
+    {
+        vol.Optional(CONF_SCHEMA, default=LEGACY): vol.All(
+            vol.Lower, vol.Any(LEGACY, STATE)
+        )
+    }
+)
+
+
+def services_to_strings(services, service_to_string):
+    """Convert SUPPORT_* service bitmask to list of service strings."""
+    strings = []
+    for service in service_to_string:
+        if service & services:
+            strings.append(service_to_string[service])
+    return strings
+
+
+def strings_to_services(strings, string_to_service):
+    """Convert service strings to SUPPORT_* service bitmask."""
+    services = 0
+    for string in strings:
+        services |= string_to_service[string]
+    return services
diff --git a/homeassistant/components/mqtt/vacuum/schema_legacy.py b/homeassistant/components/mqtt/vacuum/schema_legacy.py
index f2fa8f8da66..d770cfbb7f8 100644
--- a/homeassistant/components/mqtt/vacuum/schema_legacy.py
+++ b/homeassistant/components/mqtt/vacuum/schema_legacy.py
@@ -33,7 +33,7 @@ from homeassistant.components.mqtt import (
     subscription,
 )
 
-from . import MQTT_VACUUM_SCHEMA, services_to_strings, strings_to_services
+from .schema import MQTT_VACUUM_SCHEMA, services_to_strings, strings_to_services
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/mqtt/vacuum/schema_state.py b/homeassistant/components/mqtt/vacuum/schema_state.py
index 1ab415aef7b..40b3eeb752c 100644
--- a/homeassistant/components/mqtt/vacuum/schema_state.py
+++ b/homeassistant/components/mqtt/vacuum/schema_state.py
@@ -46,7 +46,7 @@ from homeassistant.components.mqtt import (
     CONF_QOS,
 )
 
-from . import MQTT_VACUUM_SCHEMA, services_to_strings, strings_to_services
+from .schema import MQTT_VACUUM_SCHEMA, services_to_strings, strings_to_services
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/tests/common.py b/tests/common.py
index 40e02842146..5532e6ccb5c 100644
--- a/tests/common.py
+++ b/tests/common.py
@@ -27,6 +27,7 @@ from homeassistant.auth import (
 )
 from homeassistant.auth.permissions import system_policies
 from homeassistant.components import mqtt, recorder
+from homeassistant.components.mqtt.models import Message
 from homeassistant.config import async_process_component_config
 from homeassistant.const import (
     ATTR_DISCOVERED,
@@ -271,7 +272,7 @@ def async_fire_mqtt_message(hass, topic, payload, qos=0, retain=False):
     """Fire the MQTT message."""
     if isinstance(payload, str):
         payload = payload.encode("utf-8")
-    msg = mqtt.Message(topic, payload, qos, retain)
+    msg = Message(topic, payload, qos, retain)
     hass.data["mqtt"]._mqtt_handle_message(msg)
 
 
diff --git a/tests/components/mqtt/test_legacy_vacuum.py b/tests/components/mqtt/test_legacy_vacuum.py
index add27bebdeb..c35740407c7 100644
--- a/tests/components/mqtt/test_legacy_vacuum.py
+++ b/tests/components/mqtt/test_legacy_vacuum.py
@@ -5,10 +5,8 @@ import json
 from homeassistant.components import mqtt, vacuum
 from homeassistant.components.mqtt import CONF_COMMAND_TOPIC
 from homeassistant.components.mqtt.discovery import async_start
-from homeassistant.components.mqtt.vacuum import (
-    schema_legacy as mqttvacuum,
-    services_to_strings,
-)
+from homeassistant.components.mqtt.vacuum import schema_legacy as mqttvacuum
+from homeassistant.components.mqtt.vacuum.schema import services_to_strings
 from homeassistant.components.mqtt.vacuum.schema_legacy import (
     ALL_SERVICES,
     SERVICE_TO_STRING,
@@ -80,7 +78,7 @@ async def test_default_supported_features(hass, mqtt_mock):
 async def test_all_commands(hass, mqtt_mock):
     """Test simple commands to the vacuum."""
     config = deepcopy(DEFAULT_CONFIG)
-    config[mqttvacuum.CONF_SUPPORTED_FEATURES] = mqttvacuum.services_to_strings(
+    config[mqttvacuum.CONF_SUPPORTED_FEATURES] = services_to_strings(
         ALL_SERVICES, SERVICE_TO_STRING
     )
 
@@ -221,7 +219,7 @@ async def test_attributes_without_supported_features(hass, mqtt_mock):
 async def test_status(hass, mqtt_mock):
     """Test status updates from the vacuum."""
     config = deepcopy(DEFAULT_CONFIG)
-    config[mqttvacuum.CONF_SUPPORTED_FEATURES] = mqttvacuum.services_to_strings(
+    config[mqttvacuum.CONF_SUPPORTED_FEATURES] = services_to_strings(
         ALL_SERVICES, SERVICE_TO_STRING
     )
 
@@ -260,7 +258,7 @@ async def test_status(hass, mqtt_mock):
 async def test_status_battery(hass, mqtt_mock):
     """Test status updates from the vacuum."""
     config = deepcopy(DEFAULT_CONFIG)
-    config[mqttvacuum.CONF_SUPPORTED_FEATURES] = mqttvacuum.services_to_strings(
+    config[mqttvacuum.CONF_SUPPORTED_FEATURES] = services_to_strings(
         ALL_SERVICES, SERVICE_TO_STRING
     )
 
@@ -277,7 +275,7 @@ async def test_status_battery(hass, mqtt_mock):
 async def test_status_cleaning(hass, mqtt_mock):
     """Test status updates from the vacuum."""
     config = deepcopy(DEFAULT_CONFIG)
-    config[mqttvacuum.CONF_SUPPORTED_FEATURES] = mqttvacuum.services_to_strings(
+    config[mqttvacuum.CONF_SUPPORTED_FEATURES] = services_to_strings(
         ALL_SERVICES, SERVICE_TO_STRING
     )
 
@@ -294,7 +292,7 @@ async def test_status_cleaning(hass, mqtt_mock):
 async def test_status_docked(hass, mqtt_mock):
     """Test status updates from the vacuum."""
     config = deepcopy(DEFAULT_CONFIG)
-    config[mqttvacuum.CONF_SUPPORTED_FEATURES] = mqttvacuum.services_to_strings(
+    config[mqttvacuum.CONF_SUPPORTED_FEATURES] = services_to_strings(
         ALL_SERVICES, SERVICE_TO_STRING
     )
 
@@ -311,7 +309,7 @@ async def test_status_docked(hass, mqtt_mock):
 async def test_status_charging(hass, mqtt_mock):
     """Test status updates from the vacuum."""
     config = deepcopy(DEFAULT_CONFIG)
-    config[mqttvacuum.CONF_SUPPORTED_FEATURES] = mqttvacuum.services_to_strings(
+    config[mqttvacuum.CONF_SUPPORTED_FEATURES] = services_to_strings(
         ALL_SERVICES, SERVICE_TO_STRING
     )
 
@@ -328,7 +326,7 @@ async def test_status_charging(hass, mqtt_mock):
 async def test_status_fan_speed(hass, mqtt_mock):
     """Test status updates from the vacuum."""
     config = deepcopy(DEFAULT_CONFIG)
-    config[mqttvacuum.CONF_SUPPORTED_FEATURES] = mqttvacuum.services_to_strings(
+    config[mqttvacuum.CONF_SUPPORTED_FEATURES] = services_to_strings(
         ALL_SERVICES, SERVICE_TO_STRING
     )
 
@@ -345,7 +343,7 @@ async def test_status_fan_speed(hass, mqtt_mock):
 async def test_status_error(hass, mqtt_mock):
     """Test status updates from the vacuum."""
     config = deepcopy(DEFAULT_CONFIG)
-    config[mqttvacuum.CONF_SUPPORTED_FEATURES] = mqttvacuum.services_to_strings(
+    config[mqttvacuum.CONF_SUPPORTED_FEATURES] = services_to_strings(
         ALL_SERVICES, SERVICE_TO_STRING
     )
 
@@ -371,7 +369,7 @@ async def test_battery_template(hass, mqtt_mock):
     config = deepcopy(DEFAULT_CONFIG)
     config.update(
         {
-            mqttvacuum.CONF_SUPPORTED_FEATURES: mqttvacuum.services_to_strings(
+            mqttvacuum.CONF_SUPPORTED_FEATURES: services_to_strings(
                 ALL_SERVICES, SERVICE_TO_STRING
             ),
             mqttvacuum.CONF_BATTERY_LEVEL_TOPIC: "retroroomba/battery_level",
@@ -390,7 +388,7 @@ async def test_battery_template(hass, mqtt_mock):
 async def test_status_invalid_json(hass, mqtt_mock):
     """Test to make sure nothing breaks if the vacuum sends bad JSON."""
     config = deepcopy(DEFAULT_CONFIG)
-    config[mqttvacuum.CONF_SUPPORTED_FEATURES] = mqttvacuum.services_to_strings(
+    config[mqttvacuum.CONF_SUPPORTED_FEATURES] = services_to_strings(
         ALL_SERVICES, SERVICE_TO_STRING
     )
 
diff --git a/tests/components/mqtt/test_server.py b/tests/components/mqtt/test_server.py
index 3627c95040e..71dff7ef3ac 100644
--- a/tests/components/mqtt/test_server.py
+++ b/tests/components/mqtt/test_server.py
@@ -19,9 +19,13 @@ class TestMQTT:
         """Stop everything that was started."""
         self.hass.stop()
 
-    @patch("passlib.apps.custom_app_context", Mock(return_value=""))
+    @patch(
+        "homeassistant.components.mqtt.server.custom_app_context", Mock(return_value="")
+    )
     @patch("tempfile.NamedTemporaryFile", Mock(return_value=MagicMock()))
-    @patch("hbmqtt.broker.Broker", Mock(return_value=MagicMock()))
+    @patch(
+        "homeassistant.components.mqtt.server.Broker", Mock(return_value=MagicMock())
+    )
     @patch("hbmqtt.broker.Broker.start", Mock(return_value=mock_coro()))
     @patch("homeassistant.components.mqtt.MQTT")
     def test_creating_config_with_pass_and_no_http_pass(self, mock_mqtt):
@@ -41,9 +45,13 @@ class TestMQTT:
         assert mock_mqtt.mock_calls[1][2]["username"] == "homeassistant"
         assert mock_mqtt.mock_calls[1][2]["password"] == password
 
-    @patch("passlib.apps.custom_app_context", Mock(return_value=""))
+    @patch(
+        "homeassistant.components.mqtt.server.custom_app_context", Mock(return_value="")
+    )
     @patch("tempfile.NamedTemporaryFile", Mock(return_value=MagicMock()))
-    @patch("hbmqtt.broker.Broker", Mock(return_value=MagicMock()))
+    @patch(
+        "homeassistant.components.mqtt.server.Broker", Mock(return_value=MagicMock())
+    )
     @patch("hbmqtt.broker.Broker.start", Mock(return_value=mock_coro()))
     @patch("homeassistant.components.mqtt.MQTT")
     def test_creating_config_with_pass_and_http_pass(self, mock_mqtt):
diff --git a/tests/components/mqtt/test_state_vacuum.py b/tests/components/mqtt/test_state_vacuum.py
index fe100bdcb6e..572c3b05752 100644
--- a/tests/components/mqtt/test_state_vacuum.py
+++ b/tests/components/mqtt/test_state_vacuum.py
@@ -5,11 +5,8 @@ import json
 from homeassistant.components import mqtt, vacuum
 from homeassistant.components.mqtt import CONF_COMMAND_TOPIC, CONF_STATE_TOPIC
 from homeassistant.components.mqtt.discovery import async_start
-from homeassistant.components.mqtt.vacuum import (
-    CONF_SCHEMA,
-    schema_state as mqttvacuum,
-    services_to_strings,
-)
+from homeassistant.components.mqtt.vacuum import CONF_SCHEMA, schema_state as mqttvacuum
+from homeassistant.components.mqtt.vacuum.schema import services_to_strings
 from homeassistant.components.mqtt.vacuum.schema_state import SERVICE_TO_STRING
 from homeassistant.components.vacuum import (
     ATTR_BATTERY_ICON,
@@ -259,7 +256,7 @@ async def test_no_fan_vacuum(hass, mqtt_mock):
 async def test_status_invalid_json(hass, mqtt_mock):
     """Test to make sure nothing breaks if the vacuum sends bad JSON."""
     config = deepcopy(DEFAULT_CONFIG)
-    config[mqttvacuum.CONF_SUPPORTED_FEATURES] = mqttvacuum.services_to_strings(
+    config[mqttvacuum.CONF_SUPPORTED_FEATURES] = services_to_strings(
         mqttvacuum.ALL_SERVICES, SERVICE_TO_STRING
     )