If it's a business page, but your office is not at home address, you should be able to remove home address.
Try to do the following:
1) Log into G+, click Pages on the left, and Manage the page in question
2) Click on Edit business information on the page for your business
3) Click on the pencil close to the address
4) Check the box stating, “My business has service areas where I visit customers at their location.”
5) Uncheck the box saying, “I serve customers at my business address.”