Commercial Garage & Overhead Door Installation in Denver, CO

For commercial garage door installation and overhead door replacement in Denver, CO, call (385) 325-7138 about a door that is past repairing, a damaged assembly that needs replacing, or an opening that has to change. Tell us the facility location, the opening size if you have it, and what the door does all day.

Call to talk through the replacement.

CALL NOW — COMMERCIAL LINE(385) 325-7138

Call to describe the opening—if a door is stuck open right now, say so first.

Independent service-request website. Calls may be shared with an independent commercial dock-and-door repair company. That provider confirms availability, scope, pricing, and service terms.

Facts checked: September 18, 2026.

Replacing, or repairing?

Worth two minutes before you spend money on the wrong thing. Replacement usually becomes the honest answer when one of these is true:

• The damage runs into the structure — the opening moved, the jambs are out, or the track mounting is compromised.
• Parts are not available. Discontinued panel profiles, obsolete hardware, or an operator nobody supports anymore.
• You have repaired it repeatedly. Three service calls on the same door in a year is a budget conversation, not a repair conversation.
• The door is past its cycle life. A light-duty assembly on a bay that runs hard will keep failing no matter how well it is repaired.
• The opening or a required rating has to change — new equipment, new traffic pattern, new use.

If it is a repair, go to commercial garage and overhead door repair or roll-up and rolling-steel door repair.

Wind rating is not one number in Denver

This is the single most expensive assumption on a Denver door quote, and it is why this page exists separately.

Denver's own code page tells design professionals that the national hazard tool may be used for snow and seismic criteria but not for wind, because wind is amended in the Denver Building Code. (Denver Building and Fire Code, checked September 18, 2026.)

And the amendment is not a single citywide speed. It steps upward as you move west, using contour lines drawn along Federal Boulevard, Sheridan Boulevard, and Kipling Street, interpolated between them, referencing the Colorado Front Range Gust Map. Denver's own roofing guidance expresses the same three bands in plain language — east of Federal, Federal to Sheridan, Sheridan to Kipling — with the required minimum rising at each step. That roofing example shows how the city expresses the zones under the code edition then in force. It is roofing guidance, not a door rating.

What to do with that, before anybody orders anything:

1. Ask the building official for the basic design wind speed for your parcel and risk category. Your parcel, not your neighborhood.
2. Ask the door company what wind rating it is supplying — in writing, on the quote. Not "it'll be fine." A number.
3. If there is glazing in the door, ask whether opening protection applies. Denver's code references ANSI/DASMA 115 for glazed garage-door opening protection in its highest wind band.
4. If you own buildings on both sides of one of those boulevards, do not assume one specification covers both. That is the trap. A quote copied from an east-side job can be specifying the wrong door for a west-side building.

We do not publish a wind speed as a door rating, and neither should any vendor page. The number belongs to your parcel and comes from the building official.

The code edition changed on December 31, 2025

Denver adopted the 2025 Denver Building and Fire Codes, built principally on the 2024 family of international codes, effective December 31, 2025, and the city's page states there are no exceptions for new project drawings submitted after that date.

If you are holding a quote or a drawing set from before that, ask which edition it was designed to and confirm with the building official. One question, potentially a redesign avoided.

Which office issues the permit

By parcel, not by mailing address. This is a metro where buildings a mile apart answer to different authorities.

Confirm the parcel's jurisdiction before you assume the office from the mailing address. The absence of permit guidance here does not mean a permit is not required. The provider and the issuing office confirm it. We do not publish a permit fee, because a general construction fee is not a door-replacement fee and quoting one as the other would be misleading.

Who is allowed to do the work

Denver's contractor licensing policy lists a Class D specialty covering overhead doors — installation and repair of operable commercial overhead doors, and separately one covering fire doors. Denver states it does not reciprocate licenses from other counties or states, and Aurora, Commerce City, and Thornton each license contractors themselves. (Denver Contractor Licensing, checked September 18, 2026.)

If a new operator is part of the job, there is a second question. Electrical work is a state-credentialed trade in Colorado, while permits and inspection stay with the local authority. Ask exactly this:

"Who is doing the electrical work, under what credential, and who pulls and closes that permit?"

Denver Contractor Licensing: 201 W. Colfax Ave., 2nd floor, (720) 865-2770, Mon–Thu 8–4, closed 12–1.

What actually goes into a commercial door replacement

Specifying a door that lasts

• Duty cycle beats horsepower. Ask for the operator's duty classification, not just its motor size. A light-duty operator on a hard-working bay fails early.
• High-cycle springs where the bay runs hard. Costs more up front, costs less over five years.
• Insulation where the building is conditioned. And be honest about whether the opening is a real thermal boundary.
• Glazing trade-offs. Light in the building versus impact risk, insulation, and the opening-protection question above.
• Match the door to the traffic that broke the last one. If a forklift took out the last door, the replacement should account for that approach angle, not just the same spec again.

If it is not a sectional door

• Pit leveler replacement is its own scope — concrete, curb steel, electrical, and often a permit. See dock leveler repair, and treat it as a project, not a service call.
• Replacing a rated rolling door carries the fire door classification and the record requirements that go with it. See rolling fire door repair.
• A high-speed door replacement has its own specification questions around cycles, controls, and the environment. See high-speed doors.

What we cover on this page — and what we don't

In scope: installation and replacement of commercial sectional, overhead, and rolling doors and their operators at commercial buildings in the Denver metro, including new openings where the structural work is handled by others.

Not in scope: structural work to create or modify the opening. Concrete and slab work. Pedestrian storefront and automatic-entry doors. Residential garage doors. Parts-only supply. General construction and tenant fit-out beyond the door.

What to say when you call

1. You call and describe the opening and the facility location.
2. Your request may be shared with an independent commercial dock-and-door repair company.
3. That provider confirms availability, project scope, pricing, and its own service terms.

Example wording — an example, not a real job:

"The door on bay 3 at our Denver plant has been repaired three times this year and we'd rather replace it. I can give you the address and the opening size."

Useful, but not required: the opening size, how many doors, what the door does all day, whether the building is inside Denver city limits, and whether you already have a design wind speed from the building official. You can call without any of it — that is what the survey is for.

If you reach voicemail, leave the facility address, the door or dock number if known, what's wrong, and a callback number.

CALL NOW — COMMERCIAL LINE(385) 325-7138

What affects the price

We can't quote your exact replacement from a web page. The price depends on the opening, the specification, parts, permits, and access. Here's what to ask before you authorize work.

• Opening size. The biggest single driver.
• Door type, gauge, and insulation.
• Wind rating required for your parcel. See above — this one genuinely varies across the metro.
• Operator duty cycle, and whether a new circuit is needed.
• Removal and disposal of the old assembly. Ask whether it is in the price.
• Structural or track modification if the opening is not square or the headroom changed.
• Permit and inspection time.
• Lead time on non-stock sizes, finishes, and glazing.
• Access and shift windows — including whether the opening can be out of service during business hours.
• Which kind of number it is — a budget estimate, a scoped fixed price, or a final quote after survey. Breakdown on the Denver hub page.

For budgeting, see the national commercial garage door cost reference. We do not publish a Denver price, because we have no verified one to publish.

Get a survey and a specification in writing.

CALL NOW — COMMERCIAL LINE(385) 325-7138

Where we take calls

Denver, Aurora, Commerce City, Thornton, Englewood and the rest of the ten-county metro, plus the towns just past those county lines, reviewed case by case. The independent provider confirms your facility address and whether it can take the job. Full list on the Denver service area page.

One note for west-side buildings — Golden, Lakewood, Wheat Ridge, Arvada and anything out past Kipling: the wind conversation above is not academic for you. Ask the building official for the number before you order.

See also the national commercial overhead door repair overview.

Questions about commercial door installation in Denver

Do I need a permit to replace a commercial overhead door in Denver?

That depends on the scope and the parcel, and the office with jurisdiction is the only one who can answer it. A like-for-like replacement and a changed opening are different questions, and adding a powered operator adds an electrical question. For a Denver building, ask Denver Community Planning and Development. Elsewhere, use the office in the table above. The provider and the issuing office confirm it.

What wind rating does my door need?

Ask the building official for the basic design wind speed for your parcel and risk category, then ask the door company what rating it is supplying in writing. Denver amends wind criteria locally and the criteria step upward as you move west across Federal, Sheridan, and Kipling — so the honest answer is that it depends on where your building physically sits.

How long does a commercial door replacement take?

The install itself is usually the short part. The lead time on the door is what sets the schedule, and that turns on whether your size, gauge, and finish are stock or built to order. Ask for the lead time and the install duration as two separate numbers.

Can the existing operator be reused on a new door?

Sometimes, and it depends on the operator's duty class, its condition, and whether the new door's weight and cycle demands match it. Ask for that assessment specifically rather than letting it become an assumption — reusing an undersized operator is a common way to end up back where you started.

Talk through the replacement

Give us the facility location and the opening. Say if a door is out of service right now.

CALL NOW — COMMERCIAL LINE(385) 325-7138

Independent service-request website. Calls may be shared with an independent commercial dock-and-door repair company. That provider confirms availability, scope, pricing, and service terms.

Denver dock and door repair · All Denver services · Service area · Contact · Change service area

Sources

• Denver Building and Fire Code — 2025 code adoption, December 31, 2025 effective date, wind-criteria amendment statement and ANSI/DASMA 115 reference. Checked September 18, 2026.
• Denver Community Planning and Development — permitting and plan review. Checked September 18, 2026.
• Denver Contractor Licensing — Class D specialty categories, reciprocity statement, office contact. Checked September 18, 2026.
• City of Aurora — permits and licensing. Checked September 18, 2026.
• Commerce City Building Safety. Checked September 18, 2026.
• City of Thornton — building permits. Checked September 18, 2026.
• Adams County Building Safety — unincorporated areas only. Checked September 18, 2026.