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Find Doors (exterior) installers and replacers in Longmont

Avatar for On Demand Contracting
On Demand Contracting
4.7(
41
)

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%
22 neighbors recently requested a quote
Flawless Results, LLC
4.3(
22
)

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 North South East and West LLC Home Solutions
North South East and West LLC Home Solutions
5.0(
40
)

Serving Longmont, CO and surrounding areas

Approved

In business since 2013

Free estimates

Small jobs welcome

"Juan helped me with a few projects I needed help with around the house, including installing a dimmer switch, replacing trim around a door, and painting some baseboards. Juan was very professional and courteous, and all of the work was done quickly and everything turned out great!"
Response time4 hrs
Recommended by92%of homeowners
Avatar for Deans Design and Remodeling LLC
Deans Design and Remodeling LLC
5.0(
18
)

Serving Longmont, CO and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"The Deans DR team did a great job on both projects. They were punctual, detail oriented, friendly, and checked in with me when they had questions or suggestions to improve the project. I would definitely hire them again!"
3 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Skilled Home Improvement, LLC
Skilled Home Improvement, LLC
5.0(
10
)

Serving Longmont, CO and surrounding areas

Approved

In business since 2025

Free estimates

Warranties offered

"I received five quotes & Skilled Home improvement (SHI) was the lowest. All five were vetted by Angie & had positive reviews, so I chose SHI. They started only two days after I notified them, and did a great job. They ran into significantly more concrete than usual surrounding the posts, causing a two-day job to stretch into three, but handled it in stride. The repaired fence looks great & the surrounding area is cleaner than when they started. I highly recommend this company."
Greeley fence
Greeley fence
Greeley fence
Greeley fence
Commerce city door trim

+32

6 neighbors recently requested a quote
Showing 1-10 of 25
FAQs for doors (exterior) installation and replacement projects in Longmont, CO

Modern steel doors incorporate protective coatings and finishes that significantly reduce rust potential. These treatments create effective moisture barriers when properly maintained. Small scratches or damage should be promptly addressed with touch-up paint to prevent moisture from reaching the underlying metal. 

Doors in coastal or high-humidity environments benefit from additional protective measures and more frequent inspection. With proper care, most steel doors resist corrosion for decades.

Steel doors provide superior resistance against forced entry attempts compared to fiberglass alternatives. The inherent strength of steel creates a formidable barrier that resists impacts and tampering more effectively than composite materials. 

While high-quality fiberglass doors offer reasonable security, steel provides an exceptional strength-to-weight ratio and structural integrity. For maximum protection, look for steel doors with reinforced strike plates and multi-point locking systems.

Most manufacturers provide warranties covering manufacturing defects for periods ranging from five to 15 years, depending on the product line and quality tier. Hardware components often carry separate warranty coverage, often for shorter durations. Installation services may include workmanship guarantees covering proper fitting and operation. Always review warranty documentation carefully to understand coverage limitations and maintenance requirements that might affect warranty validity.

Provided your existing wood frame remains structurally sound and properly aligned, professional installers can often adapt a steel door to fit. The process requires careful measurement and potentially minor modifications to accommodate the new door's specifications. The frame must provide adequate support for the heavier steel door construction. A qualified installer will evaluate your current frame's condition and recommend appropriate adjustments to ensure proper function and security.

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.