Installation
New Garage Door Installation
A new garage door is one of the highest-return upgrades on a home, for curb appeal, insulation, and quiet operation. G Brothers installs Clopay, Amarr, Wayne Dalton, and Hormann doors, with a free in-home quote, flat pricing, and a clean, code-correct installation.
- Same-day service
- 4.9 stars, 400+ reviews
- Licensed & insured
What this service covers
Real work by background-checked local technicians, quoted at a flat rate you approve before anything begins.
In-home measure and quote
We measure the opening, review styles and insulation, and give you a flat installed price with no pressure.
Insulated steel, wood, and full-view doors
Options for Colorado weather, from insulated steel for an attached garage to modern full-view aluminum.
Complete installation and haul-away
We remove the old door, install the new door and hardware, tune the opener, and take the old door away.
Signs it is time for a new door
An old, uninsulated door. An aging door on an attached, heated garage leaks heat all winter and runs loud. A new insulated door is quieter and easier on your energy bill.
Repairs that keep adding up. When an older door needs fix after fix, a new one ends the cycle and starts fresh with new springs, rollers, and a warranty.
Storm or impact damage. Hail, wind, or a bumper tap that dents or cracks several panels usually calls for a full replacement, not a patch.
A refresh before you sell. A new garage door is one of the highest-return upgrades before a sale, and it refreshes the look of the whole front of the house.
How it works
- 1
Call or book online
Tell us the symptom and your door. We schedule a same-day or next-day visit at no charge to look.
- 2
On-site diagnosis and flat quote
Your technician finds the real cause and gives you a flat price to approve before any work begins.
- 3
Fixed and tested
We complete the work, cycle and balance the door, and leave it running safely and quietly.
Why homeowners call G Brothers
Voted Best Garage Door Company, three years running
And rated 4.9 stars across 400+ Google reviews.
More than 40 years of experience
Family-owned, locally operated, and BBB accredited.
Free, no-obligation estimates
We look, diagnose, and quote a flat price you approve before any work starts.
Same-day and 24/7 emergency service
Most repairs are handled the day you call.
Background-checked, licensed, and insured technicians
Local crews you can trust in your home.
No pressure, done right the first time
We recommend a repair over a replacement whenever that is the right call, and back it with a workmanship guarantee.
Reviews
Rated 4.9 across 400+ Google reviews
Homeowners and businesses trust G Brothers for fast, honest garage door work.
Based on 400+ Google reviews
Upfront, flat-rate pricing
Your estimate is free. We diagnose the problem on site, then give you one flat price to approve before any work begins. No surprises, no pressure, and an honest recommendation on whether a repair or a replacement is the better value.

Visit us
Find G Brothers Garage Doors
Reach out for same-day garage door service. Our technicians come to you for every repair, replacement, and install.
Our shop
12550 W Colfax Ave, Unit 107, Lakewood, CO 80215
Open 24/7 for emergency garage door service.
Related questions
Quick answers about new door installation and related work from the G Brothers team.
What should I expect during a garage door installation?
A full garage door installation typically takes two to four hours for a single door.
Read full answerDo I need a permit to replace a garage door in Denver?
No permit is required in Denver for a like-for-like garage door replacement in the same opening.
Read full answerDo I need new tracks when I get a new garage door?
Almost always, yes.
Read full answerCan I reuse my garage door opener with a new door?
Usually yes, if the opener is under 10 to 15 years old, in good working condition, and powerful enough for the new door's weight.
Read full answerRelated services
Ready to get started?
Book same-day service or a free estimate. Available 24/7.
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Guides & resources
Learn more about new door installation before you book.
- The Ultimate Guide to Choosing the Right Garage Door for Your HomeStart with material and insulation, then match the style to your home. For most Denver homes an insulated steel door is the best mix of price, strength, and low upkeep.Read guide
- Garage Door Installation: How to Choose the Right Door for Your HomeA successful garage door installation starts before anyone shows up at your house. The decisions that matter most are material, insulation, and style, in that order, because they set the price range, the maintenance schedule, and how the door will perform through Colorado winters.Read guide
- Why Professional Garage Door Installation Is Worth the CostA garage door is the heaviest moving part of most homes. The springs that balance it store enough energy to cause serious injury if they release suddenly. Professional installation handles those risks correctly and keeps the manufacturer's warranty intact.Read guide
