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Find Doors (exterior) installers and replacers in Longmont

Avatar for On Demand Contracting
On Demand Contracting
4.5(
45
)

Serving Longmont, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Small jobs welcome

Credit card accepted

"My front door wasnâ t working properly and I found RJ on Angie list, he reached out to me immediately and was super professional on the phone and in person .He fixed my door while explaining the entire process, once he was done he cleaned up his mess. I am very pleased with his work and will definitely be calling him for future repairs."
PAINT
TRIM
FLOORING
GETTING DOOR INSTALLED
DOOR INSTALATION

+101

Response time6 hrs
Response rate94%
19 neighbors recently requested a quote
Flawless Results, LLC
4.2(
31
)

Serving Longmont, CO and surrounding areas

Approved

In business since 1994

Free estimates

Credit card accepted

"I want to thank Jacob Tryon for selling me my Provia windows and sliding glass door. I want to thank the crew that installed them: Lorenzo, Ernesto, Pablo, Jonathan and Edgar. The crew removed and replaced 9 windows and a sliding glass door in 1 day! I also want to thank the 2 gentlemen that came and replaced the stucco, painting and replacing of my bars on my home. All the way through the whole process I was pleased with the professionalism. Everyone answered all my questions along the way. My Provia windows have more features then I knew. I absolutly LOVE them! I would recommend Flawless Solutions to anyone. I have already talked to some of my neighbors that asked about my new windows and my family."
Recommended by81%of homeowners
Avatar for Skilled Home Improvement, LLC
Skilled Home Improvement, LLC
5.0(
13
)

Serving Longmont, CO and surrounding areas

Approved

In business since 2025

Free estimates

Warranties offered

"Great communication, very friendly and knowledgeable. They replaced & cemented in 3 broken 4”x4”fence posts, stained & replaced a few rails & pickets., attached the 5 8’ sections that had blown down, and cleaned up the mess."
Greeley fence
Greeley fence
Greeley fence
Greeley fence
Commerce city door trim

+32

5 neighbors recently requested a quote
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FAQs for doors (exterior) installation and replacement projects in Longmont, CO

If your entry bakes in direct sun, fiberglass is the clear winner. The material shrugs off extreme heat, stays energy-efficient, and won’t warp or fade the way wood sometimes can. Paired with low-E or UV-blocking glass, a quality fiberglass door keeps hot air out, cool air in, and should serve you reliably for roughly two decades.

A seasoned door pro can hang a replacement door in two to four hours—mounting the slab, tweaking the fit, and adding hinges, knobs, and weatherstripping. If the jamb needs repairs or you’re cutting a brand-new opening, plan on extra time so everything lines up and seals tightly. Either way, most projects wrap up in a single afternoon.

The Longmont, CO homeowners’ guide to doors (exterior) installations and replacements

From average costs to expert advice, get all the answers you need to get your job done.