Angy SosaTrustindex verifies that the original source of the review is Google.
Absolutely amazing! Garage door got fixed super quick and he was very professional with it. I would absolutely recommend him. Thank youPosted on Google![]()
Christopher NicoletTrustindex verifies that the original source of the review is Google.
Fantastic service. Was able to come within a few hours of being called and was extremely knowledgeable and professional. Highly recommend and will use again in the future.Posted on Google![]()
Starr CarrollTrustindex verifies that the original source of the review is Google.
Colin was polite, punctual, and did a great job. Pricing was very affordable, and I will recommend him to friends or family that are seeking garage door work to be done. He replaced the spring on our garage door in under 30 minutes.Posted on Google![]()
Ciri MalamudTrustindex verifies that the original source of the review is Google.
Very professional, excellent and prompt installation. Does exactly what is necessary to complete job with high quality support. I highly recommend A1A Garage Door Service.Posted on Google![]()
Laura MaineriTrustindex verifies that the original source of the review is Google.
A1A garage door is amazing! and Colin exceeds expectations for service and customer care and support. I called with an "emergency" for my garage door repair at the end of the day (on a Friday!) and Colin fit me in to his already booked schedule with amazing service. He resolved the issue within minutes and gave recommendations and great insight, all with a price you can't beat. Colin is a great guy - I recommend him and his services hands down.Posted on Google![]()
Becky ReetzTrustindex verifies that the original source of the review is Google.
Colin provided excellent service and our new garage doors work perfectly!Posted on Google![]()
Joe EnriquezTrustindex verifies that the original source of the review is Google.
Colin is the only garage door contractor I trust to service my garage doors. He has great customer service and cares about the work he does. I prefer dealing with contractors directly instead of a major company or subcontractors. I have had my springs replaced and operator serviced by his company on two separate occasions and he does an excellent job from start to finish at a very reasonable cost.Posted on Google![]()
Ian SmithTrustindex verifies that the original source of the review is Google.
New Garage system. Colin was fantastic! Very responsive, punctual, excellent communication skills and workmanship. He went above and beyond. Genuine, good guy! Would absolutely recommend and not hesitate to use for any other projects.Posted on Google![]()
Brooke MurphyTrustindex verifies that the original source of the review is Google.
Great experience, support and installationPosted on Google![]()
Nick KTrustindex verifies that the original source of the review is Google.
Colin is the guy you should choose. Professional, intelligent, friendly, punctual and great value /reasonable cost. Everything you would want in a garage door specialist and more. After a few not so good and one nightmare experience with “local” companies, so glad to have found Colin and A1A. You will be very happy if you hired them as well.Posted on Google![]()
5-Star Rated on Google
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Our Products
Browse the door collections and openers A1A installs for Novato and Marin homes. Pick a brand, find a style you like, and we’ll help you choose the right size, finish, and options for your house.

CHI Overhead Doors · 10 door collections
Amarr · 13 door collections

Clopay · 11 door collections

LiftMaster · 5 garage door openers
Not sure which style fits your home? Tell us about it and we’ll help you compare your options.
Get a Free EstimateA working door should be easy to use and appropriate for the home. If something has changed, the next step depends on the symptom, not just the age of the door.
A door that will not open or close properly:
Explore garage door repair for a full-system assessment rather than guessing which part failed.
A broken spring or visibly damaged cable:
Stop using the door. Read about spring replacement and arrange an inspection.
An opener that is loud, inconsistent, or no longer meets your needs:
Ask about opener installation and repair, including whether a belt-drive option makes sense for your home.
A new door or a change in curb appeal:
Compare residential garage door installation options with your home’s opening, design, and daily use in mind.
A door that operates but needs attention:
Consider maintenance before a small concern becomes a larger interruption.
A1A Garage Door Services helps Novato and nearby Marin homeowners choose the work that fits their door. Explore these residential services, then tell us what you need.
A1A’s owner, Colin Thomas, describes his approach as treating every home as if it were his own. His guiding phrase is “Leave it better than you found it.” For homeowners, that means paying attention to how the whole door works and to the details that affect how it looks and feels in daily use.
A new door is not always the best choice. A repair may make more sense if the existing door is suitable and the problem can be fixed safely. For a new installation, compare appearance, material, upkeep, and how the door will work with your opener. If you want a quieter opener, a belt drive is one option, but the door and your priorities should guide the recommendation.
There is no single price for every job. Door size, materials, hardware condition, opener choice, and the work found during assessment all change the scope. Tell us whether your priority is restoring function, changing the look, or both, so the estimate covers the right work.
Not sure whether to repair or replace? Talk it through with our team. Call Now: (415) 755-5860
A1A is based in Novato and serves homeowners in San Rafael, Tiburon, Mill Valley, San Anselmo, Corte Madera, Belvedere, Ross, Fairfax, and Larkspur. Check the service-area overview and confirm your address when you call. The service question is the same across these homes: what is happening at your door, and what would a useful result look like for you?
If your door is crooked, off its track, unusually heavy, or visibly unbalanced, do not use the garage door until a technician has inspected it. The same applies if you see a broken spring or frayed cable. Do not handle tensioned parts or keep operating the door to test it. Call (415) 755-5860 and describe what you can see without touching the hardware.
Yes. Describe when the sound occurs and whether the door’s movement has changed. An inspection can help distinguish a maintenance concern from a repair that should not wait.
Not necessarily. A heavy or unbalanced door needs an inspection of the door system before anyone recommends an opener. Do not use the garage door until a technician has inspected it.
Tell A1A what the door is doing, where you live, and whether you want repair or a new installation. Request an estimate or call (415) 755-5860. We can discuss the next step without asking you to diagnose the
For garage door repair, installation, maintenance, or opener service in Novato and nearby Marin communities, call A1A at (415) 755-5860 or send a request. Tell us what the door is doing and what you want to change so we can discuss the next step.