Commercial repair
Commercial Garage Door Repair in Denver
A commercial door that will not open stops deliveries, traps inventory and leaves a bay unsecured. G Brothers repairs commercial overhead doors, rolling steel doors and commercial operators in Denver and across the metro, around the clock. Our average response is about an hour and a half, with common parts already on the truck.
What this service covers
Real work by background-checked local technicians, quoted at a flat rate you approve before anything begins.
Springs and cables
Broken torsion springs, frayed lift cables and worn drums on sectional and rolling steel doors, including high-cycle springs for doors that run all day.
Track, rollers and sections
Bent track, worn rollers and damaged sections on commercial overhead doors, straightened, replaced or matched.
Rolling steel curtains
Slats, bottom bars, guides and barrels on roll up doors that bind, jam or will not stay closed.
Commercial door openers and operators
Jackshaft, trolley and hoist operators on any brand, plus the photo-eyes, safety edges and wall stations around them.
Fire-rated rolling doors
Service and repair on the curtain, barrel and bottom bar of fire-rated rolling doors.
Signs your commercial door needs repair
The door is stuck open or closed and the bay is out of use.
A loud bang, then the door will not lift. That is usually a broken spring.
The door opens partway, reverses, or the operator hums and does nothing.
The curtain or sections bind, rub or come out of the guides or track.
A forklift or truck has hit the door, the track or the guides.
The door is slow, loud or shakes, and it runs dozens of times a day.
Commercial door types we repair
Sectional overhead doors. Steel and insulated doors on warehouses, shops and service bays, on standard, high lift and low headroom track.
Rolling steel doors. Roll up doors with a coiling slat curtain on storefronts, warehouses and docks.
High-cycle doors. Doors that run all shift, where the spring rating and the maintenance schedule decide how long they last.
Fire-rated rolling doors. Curtain, barrel and bottom bar service and repair.
Loading dock doors. The sectional and rolling doors at your dock positions.
Emergency commercial door repair
We dispatch 24/7 for commercial doors that are stuck, unsafe or will not lock. When you call, tell us the door type, its size and what happened just before it stopped, so the technician arrives with the right parts. Keep staff and vehicles out from under a door that is hanging crooked or stuck partway, and do not try to force it or adjust the springs. Commercial springs hold enough tension to injure someone.
How it works
- 1
Call or book online
Tell us the door, what it is doing, and how many times a day it runs. Emergencies are dispatched around the clock.
- 2
On-site diagnosis and flat quote
Your technician finds the real cause and gives you one flat price to approve before any work begins.
- 3
Fixed, cycled and tested
We complete the work, balance the door, test the operator and safety devices, and run the door through full cycles before we leave.
Why facility managers call G Brothers
Fast response, day or night
Our average response is about an hour and a half, and that holds for a commercial call at 2am.
Parts on the truck
Common springs, cables, rollers and operator parts are stocked on the truck, so many repairs are finished on the first visit.
Every operator, every brand
Jackshaft, trolley, hoist and gate operators on any make, so we repair the equipment you already have.
Insured, with paperwork fast
Licensed, insured, background-checked technicians, with a certificate of insurance usually sent within 24 hours.
One account for every property
Property managers can put every door on every building on one account.
Warranty on the work
One year on labor and three years on parts.
More than 40 years in the trade
Family-owned, BBB accredited, and rated 4.9 stars across 400+ Google reviews.
Reviews
Rated 4.9 across 400+ Google reviews
Property managers, contractors and homeowners trust G Brothers for fast, honest garage door work.
Based on 400+ Google reviews
Upfront, flat-rate pricing
Your estimate is free. We look at the door on site, then give you one flat price to approve before any work begins, with an honest recommendation on whether a repair or a replacement is the better value for a door that has to keep working.
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
7700 W 9th Ave, Lakewood, CO 80214
Open 24/7 for emergency garage door service.
Related questions
Quick answers about commercial garage door repair and related work from the G Brothers team.
Do you offer emergency commercial garage door service?
Yes. We run 24/7 emergency commercial garage door service across Denver, fixing most stuck or unsecured doors on the first visit with stocked trucks.
Read full answerWhat are the most common problems with roll-up commercial garage doors?
The five most common problems are: coil drum wear, bottom bar damage, spring failure, operator motor failure, and guide rail damage.
Read full answerWhat are high-cycle garage door springs?
High-cycle garage door springs are heavy-duty torsion springs rated for far more cycles, sized for busy commercial doors that fail standard springs.
Read full answerHow do I prevent commercial garage door downtime and keep operations running?
Schedule preventive maintenance every 3 to 6 months depending on cycle count, inspect safety devices monthly, and keep a spare parts kit on site for common wear items.
Read full answerCommercial vs residential garage doors explained
Commercial vs residential garage doors: how they differ in build, cycle life, springs, operators, and code, and which one your building actually needs.
Read full answerService areas
Commercial Garage Door Repair across the Denver metro
We provide commercial garage door repair across the Denver metro, including Denver, Lakewood, Aurora, Commerce City, Arvada, Wheat Ridge, Golden, Englewood, Littleton, Centennial, Westminster, Thornton, and Broomfield, plus surrounding communities. Not sure if you are in range? Call and we will let you know.
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Book same-day service or a free estimate. Available 24/7.
Learn more
Guides & resources
Learn more about commercial garage door repair before you book.
- Overhead Garage Door Repair: Common Issues With Tracks, Rollers, and SpringsMost overhead garage door repair comes down to three parts: the tracks, the rollers, and the springs. Track and roller work is a safe DIY fix. Leave spring repair to a pro because of the high tension involved.Read guide
- What Is an Overhead Door? Types, Benefits, and How to ChooseAn overhead door is any door that opens vertically and stores flat against the ceiling when fully open. Most residential garage doors are overhead doors. The type, material, and insulation you choose determine how it performs in Colorado's climate.Read guide