If you go to maps.google.com and type in your address, you should be able to see the map for your location. Copy the share link URL as shown in the screenshot below –
https://docs.google.com/file/d/0B9j6FQo4cSQFZE40Um1CUVhZV3c/edit?usp=drivesdk
Copy the URL as shown above from Google Maps site and paste it to the area shown below in the Contact Us Page Edit window. You just replace the existing URL in the [googlemap] shortcode with the new one provided by Google (just change the src argument for this shortcode). –
https://docs.google.com/file/d/0B9j6FQo4cSQFY0ZoN25VUG5BR2s/edit?usp=drivesdk