First go to Google Maps and find the address of your business. Than on the bottom right corner, you will see the settings gear icon, click on it and then click on Share and embed map
Click on Embed map, select Large size from the drop menu, and then select and copy the code.
Go back to Pages/All Pages and find the Contact Us page. Click on Edit than before you paste the code, insert your company name, address, phone number and email.
Once you are done, switch from visual to text mode and paste the code from google maps all the way down on the bottom. Then click Update.
Now when you refresh the “Contact Us” page you can see that besides the contact form you have your company contact information, and interactive map underneath.