diff --git a/homeassistant/components/notify/twilio_sms.py b/homeassistant/components/notify/twilio_sms.py
index f7700240b67..ddcf8849b78 100644
--- a/homeassistant/components/notify/twilio_sms.py
+++ b/homeassistant/components/notify/twilio_sms.py
@@ -6,27 +6,29 @@ https://home-assistant.io/components/notify.twilio_sms/
 """
 import logging
 
+import voluptuous as vol
+
+import homeassistant.helpers.config_validation as cv
 from homeassistant.components.notify import (
-    ATTR_TARGET, DOMAIN, BaseNotificationService)
-from homeassistant.helpers import validate_config
+    ATTR_TARGET, PLATFORM_SCHEMA, BaseNotificationService)
 
 _LOGGER = logging.getLogger(__name__)
 REQUIREMENTS = ["twilio==5.4.0"]
 
+
 CONF_ACCOUNT_SID = "account_sid"
 CONF_AUTH_TOKEN = "auth_token"
 CONF_FROM_NUMBER = "from_number"
 
+PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
+    vol.Required(CONF_ACCOUNT_SID): cv.string,
+    vol.Required(CONF_AUTH_TOKEN): cv.string,
+    vol.Required(CONF_FROM_NUMBER): vol.Match(r"^\+?[1-9]\d{1,14}$"),
+})
+
 
 def get_service(hass, config):
     """Get the Twilio SMS notification service."""
-    if not validate_config({DOMAIN: config},
-                           {DOMAIN: [CONF_ACCOUNT_SID,
-                                     CONF_AUTH_TOKEN,
-                                     CONF_FROM_NUMBER]},
-                           _LOGGER):
-        return None
-
     # pylint: disable=import-error
     from twilio.rest import TwilioRestClient