MA Garage Door Installation Contractor - Version 1 MA garage door installation contractor wallpaper. Once you’ve narrowed down potential contractors, you should check out how he or she conducts their business. For starters, you may contact the local Better Business Bureau to see if any former clients. Basically most people including contractors are fair and honest. They want to perform a service for you and get paid so they can provide for their family just as you need to provide for yours.