A1 Garage Door Longmont, CO | Installs * Sales * Repairs
As an essential home service provider, we are committed to our normal business hours to best serve you at this important time.


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  • 400+ 5 Star Yelp Reviews
  • BBB A+ Reputation
  • Angies List Super Service Award
  • Licensed, Bonded, Insured

A1 Garage Door Service & Repair in Longmont

Are you looking for the best garage door company to attend to your garage doors in both Denver and Longmont? The only one you have to call for help is A1 Garage Door Service. Phone us now at 720-400-7727 and you will experience why we are the number one specialist in garage doors.

All garage doors are susceptible to damages. If they are being used frequently enough, they could be subjected to problems that even regular maintenance cannot stop. Sometimes, the locks may develop some issues. Other times, it is the springs and the rollers. No matter what, these issues are not something we can just ignore since it will compromise not just the garage door itself, but the whole household as well. For these malfunctions, we must call for immediate help. In terms of repairing and fixing garage doors, A1 Garage Door Service is one of the most reliable company in Longmont. We are trained in this field to give only the service that you deserve. We guarantee you that our technicians that will attend to your garage doors are more than capable of fixing your doors in no time.

For many years, people have trusted us because of the quality of service we provide. We’ve ranked as the number 1 garage door company in Longmont and in other towns and cities surrounding it. If you are curious about our service and would like to give our service a try, just contact A1 Garage Door Service at 720-400-7727 and we’d be glad to be of assistance to you. Even if your garage doors have no defects, you may still ask for our help because not only do we do garage door inspection, we are into maintenance service too.

Even with the installations of garage doors, we are more than confident to do it for our customers. We make sure that we do not fail in our job so as to not disappoint the people who trust us. That means that we have to work harder all the time. A1 Garage Door Service is sure that everyone in our company is trained well and is informed about new information that can improve our service better. It is a way to keep our company the best in the field and to only serve satisfaction to our customers.

The installations of garage doors we do are always made sure to be meticulous and accurate so that it will be sturdy, strong, and would function well. People do not just choose us for installations but they buy products from us too. We have various garage door items you can choose from and all of these can be found in our inventory. Pick from any brands you like which come in different colors, sizes, and designs. We promise you that after the installation process, we would make your property look more appealing. Choose well, and even if you find nothing that suits your taste, don’t worry because we will outsource them for you.

Give us a call now at 720-400-7727 and receive great discounts along with lifetime warranties. We also offer FREE estimates and FREE professional advice here. Book our service as soon as you need our help and do not miss out on the great deals we have to offer.

A1 Garage Door Service & Repair

See why we are the best!


Yelp 5 Star Reviews

Yelp 5 Star Rating We keep a high 5 star average rating with over 300 reviews!

bbb Acredited business

BBB Accredited

Better Business Bureau We maintain a A+ Rating with the BBB

BackGround Checks

BackGround Checks

Background Checks All A1 employees must pass a criminal background check before hire.

100% guaranted licensed bonded

Licensed Bonded & Insured

Licensed Bonded And Insured. Trust your work is done with quality.

super service award

Angies List

Angies List 2014, 2015, & 2016 Super Service Award recipient!

Arizona Register of Contractor

AZ Registrar of Contractors

Arizona Registrar of Contractors A1 Garage Door Registrars license #267827

A1 Garage Door Service

See why we are the best!

a1 Garage Door Openers

Garage Door Openers

Is your garage door opener defective or simply not working? Call A1 Garage Door Service at (720) 400 7727 and we will fix it for you. We have all the top models, brands and makes of garage door openers plus laser eyes and keypads.
a1 Commercial Doors, Docks & Gates

Commercial Doors, Docks & Gates

A1 Garage Door Service specializes in the installation, repair and maintenance of all commercial doors such as security gates, roll-up garage doors, warehouse doors & more for local Denver companies. Simply call us at (720) 400 7727.
A1 Panel Replacement

Panel Replacement

Do you have a broken or bent garage door panel? Contact A1 Garage Door Service at (720) 400 7727 and we will immediately replace or repair it.
A1 Garage Door Springs

Garage Door Springs

Always get the best torsion & extension springs. A1 Garage Door Service has an array of premium quality springs appropriate for your garage door. Just dial (720) 400 7727 to get your door functioning like new.
A1 Crashed Door Service

Crashed Door Service

Do you have a damaged door? Worry no more. Our expert team at A1 Garage Door is well-equipped to fix it for you. Call us at (720) 400 7727.
Custom Garage Doors - Phoenix

Custom Garage Doors

We know how you value the importance of having your own beautifully designed custom garage door. Call A1 Garage Door Service at (720) 400 7727 and benefit from our personal service from the conceptualization to the installation of your garage door and even its maintenance.
A1 Tune-Ups


Is your garage door loud? Is it lowering and raising slowly and gradually or even jumping on the tracks? Our technicians will make sure all of your components are in working condition and provide you with a full tune-up at reasonable prices. Just dial (720) 400 7727.
A1 Garage Door Sales & Install

Garage Door Sales & Install

Are you in need of a brand-new garage door? Whether your home’s door is old and broken down or you want to update the visual appeal of your home with a custom garage door, our technicians will certainly give you the service you deserve at a good price. Simply contact (720) 400 7727.
A1 Weather Seals

Weather Seals

Our specialists will install a brand new garage door weather seal which will keep rats, rain and dust away from your garage for good. Its simply a matter of calling A1 Garage Door Service at (720) 400 7727.

We Service All Makes & Models of Garage Doors & Openers

Recent Blog Posts

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SHOULD I INSULATE MY GARAGE? Whether facing the extreme summer heat of Phoenix or Las Vegas or the bitter cold winters of Detroit or Milwaukee, regulating the temperature of your garage can be challenging. Adding insulation to your garage door could help maintain...

A1 Cares: It’s Fun to Play (and Volunteer) at the YMCA

On Wednesday, July 21, a group of 14 A1 Garage Door Service trainees and three trainers spent their morning not fixing garage doors but painting walls and cleaning floors at the Lincoln Family Downtown YMCA in downtown Phoenix. As part of our structured training...

Epoxy Floor Coating Services Now Available in Phoenix

Do you want to do more with your garage floor? Adding epoxy floor coating can transform concrete into a work of art. On top of that, the coating adds a layer of protection for your floor. If you’re looking to add a special touch to your garage and increase the value...

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We are ready to assist you and get your garage door back on track!

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