About Garage Door Installations, Gargage Door Repairs, and Garage Door Services by Mark's Garage Doors Mark's Garage Doors has been servicing both Marin and Sonoma counties for the past 18 years. We specialize in: Garage Door Residential Sales Garage Door Installations Garage Service and Repair At Mark`s Garage Doors we take pride in offering excellent customer service combined with superior craftsmanship, at affordable rates. So if you’re looking to replace your existing garage door and add curb appeal to your home... Mark`s Garage Doors will help you find the correct design, color, style, trim and window options which you desire.