diff --git a/homeassistant/components/asterisk_mbox.py b/homeassistant/components/asterisk_mbox.py
index 0907e48b256..406774d5fad 100644
--- a/homeassistant/components/asterisk_mbox.py
+++ b/homeassistant/components/asterisk_mbox.py
@@ -31,7 +31,7 @@ CONFIG_SCHEMA = vol.Schema({
     DOMAIN: vol.Schema({
         vol.Required(CONF_HOST): cv.string,
         vol.Required(CONF_PASSWORD): cv.string,
-        vol.Required(CONF_PORT): int,
+        vol.Required(CONF_PORT): cv.port,
     }),
 }, extra=vol.ALLOW_EXTRA)
 
diff --git a/homeassistant/components/axis.py b/homeassistant/components/axis.py
index 71894364f91..63fce8a74ee 100644
--- a/homeassistant/components/axis.py
+++ b/homeassistant/components/axis.py
@@ -38,6 +38,7 @@ AXIS_INCLUDE = EVENT_TYPES + PLATFORMS
 AXIS_DEFAULT_HOST = '192.168.0.90'
 AXIS_DEFAULT_USERNAME = 'root'
 AXIS_DEFAULT_PASSWORD = 'pass'
+DEFAULT_PORT = 80
 
 DEVICE_SCHEMA = vol.Schema({
     vol.Required(CONF_INCLUDE):
@@ -47,7 +48,7 @@ DEVICE_SCHEMA = vol.Schema({
     vol.Optional(CONF_USERNAME, default=AXIS_DEFAULT_USERNAME): cv.string,
     vol.Optional(CONF_PASSWORD, default=AXIS_DEFAULT_PASSWORD): cv.string,
     vol.Optional(CONF_TRIGGER_TIME, default=0): cv.positive_int,
-    vol.Optional(CONF_PORT, default=80): cv.positive_int,
+    vol.Optional(CONF_PORT, default=DEFAULT_PORT): cv.port,
     vol.Optional(ATTR_LOCATION, default=''): cv.string,
 })
 
diff --git a/homeassistant/components/camera/xiaomi.py b/homeassistant/components/camera/xiaomi.py
index da36299a209..3d6b51cf229 100644
--- a/homeassistant/components/camera/xiaomi.py
+++ b/homeassistant/components/camera/xiaomi.py
@@ -35,7 +35,7 @@ PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_HOST): cv.string,
     vol.Required(CONF_MODEL): vol.Any(MODEL_YI,
                                       MODEL_XIAOFANG),
-    vol.Optional(CONF_PORT, default=DEFAULT_PORT): cv.string,
+    vol.Optional(CONF_PORT, default=DEFAULT_PORT): cv.port,
     vol.Optional(CONF_PATH, default=DEFAULT_PATH): cv.string,
     vol.Optional(CONF_USERNAME, default=DEFAULT_USERNAME): cv.string,
     vol.Required(CONF_PASSWORD): cv.string,
diff --git a/homeassistant/components/camera/yi.py b/homeassistant/components/camera/yi.py
index eb26c1cc887..f3800ee0648 100644
--- a/homeassistant/components/camera/yi.py
+++ b/homeassistant/components/camera/yi.py
@@ -32,7 +32,7 @@ CONF_FFMPEG_ARGUMENTS = 'ffmpeg_arguments'
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_NAME): cv.string,
     vol.Required(CONF_HOST): cv.string,
-    vol.Optional(CONF_PORT, default=DEFAULT_PORT): cv.string,
+    vol.Optional(CONF_PORT, default=DEFAULT_PORT): cv.port,
     vol.Optional(CONF_PATH, default=DEFAULT_PATH): cv.string,
     vol.Optional(CONF_USERNAME, default=DEFAULT_USERNAME): cv.string,
     vol.Required(CONF_PASSWORD): cv.string,
diff --git a/homeassistant/components/climate/zhong_hong.py b/homeassistant/components/climate/zhong_hong.py
index 46d590a9412..b564e9d1fa4 100644
--- a/homeassistant/components/climate/zhong_hong.py
+++ b/homeassistant/components/climate/zhong_hong.py
@@ -18,21 +18,23 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.dispatcher import (async_dispatcher_connect,
                                               async_dispatcher_send)
 
+REQUIREMENTS = ['zhong_hong_hvac==1.0.9']
+
 _LOGGER = logging.getLogger(__name__)
 
 CONF_GATEWAY_ADDRRESS = 'gateway_address'
 
-REQUIREMENTS = ['zhong_hong_hvac==1.0.9']
+DEFAULT_PORT = 9999
+DEFAULT_GATEWAY_ADDRRESS = 1
+
 SIGNAL_DEVICE_ADDED = 'zhong_hong_device_added'
 SIGNAL_ZHONG_HONG_HUB_START = 'zhong_hong_hub_start'
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
-    vol.Required(CONF_HOST):
-    cv.string,
-    vol.Optional(CONF_PORT, default=9999):
-    vol.Coerce(int),
-    vol.Optional(CONF_GATEWAY_ADDRRESS, default=1):
-    vol.Coerce(int),
+    vol.Required(CONF_HOST): cv.string,
+    vol.Optional(CONF_PORT, default=DEFAULT_PORT): cv.port,
+    vol.Optional(CONF_GATEWAY_ADDRRESS, default=DEFAULT_GATEWAY_ADDRRESS):
+        cv.positive_int,
 })
 
 
diff --git a/homeassistant/components/media_player/yamaha_musiccast.py b/homeassistant/components/media_player/yamaha_musiccast.py
index bf21a3f5028..535a2ad01ca 100644
--- a/homeassistant/components/media_player/yamaha_musiccast.py
+++ b/homeassistant/components/media_player/yamaha_musiccast.py
@@ -39,7 +39,7 @@ DEFAULT_INTERVAL = 480
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_HOST): cv.string,
-    vol.Optional(CONF_PORT, default=DEFAULT_PORT): cv.positive_int,
+    vol.Optional(CONF_PORT, default=DEFAULT_PORT): cv.port,
     vol.Optional(INTERVAL_SECONDS, default=DEFAULT_INTERVAL): cv.positive_int,
 })
 
diff --git a/homeassistant/components/modbus.py b/homeassistant/components/modbus.py
index f484cb31a6c..c8d71af71b4 100644
--- a/homeassistant/components/modbus.py
+++ b/homeassistant/components/modbus.py
@@ -37,7 +37,7 @@ SERIAL_SCHEMA = {
 
 ETHERNET_SCHEMA = {
     vol.Required(CONF_HOST): cv.string,
-    vol.Required(CONF_PORT): cv.positive_int,
+    vol.Required(CONF_PORT): cv.port,
     vol.Required(CONF_TYPE): vol.Any('tcp', 'udp', 'rtuovertcp'),
     vol.Optional(CONF_TIMEOUT, default=3): cv.socket_timeout,
 }
diff --git a/homeassistant/components/upnp/__init__.py b/homeassistant/components/upnp/__init__.py
index c496caba948..5e6549b71b7 100644
--- a/homeassistant/components/upnp/__init__.py
+++ b/homeassistant/components/upnp/__init__.py
@@ -43,8 +43,8 @@ CONFIG_SCHEMA = vol.Schema({
         vol.Optional(CONF_LOCAL_IP): vol.All(ip_address, cv.string),
         vol.Optional(CONF_PORTS):
             vol.Schema({
-                vol.Any(CONF_HASS, cv.positive_int):
-                    vol.Any(CONF_HASS, cv.positive_int)
+                vol.Any(CONF_HASS, cv.port):
+                    vol.Any(CONF_HASS, cv.port)
             })
     }),
 }, extra=vol.ALLOW_EXTRA)