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Find Doors (exterior) installers and replacers in Longmont

Ross Windows & Doors
4.3(
52
)
Doors (Exterior) - Install or Replace

Serving Longmont, CO and surrounding areas

Approved

In business since 1986

Free estimates

Emergency services offered

"We are very happy with our experience with Ross. They care about their customer satisfaction and are committed to quality craftsmanship. We got great doors at a great price, and would strongly recommend / use them again in the future."
delapitated atrium tansformation
sliding patio door with internal blinds
transformation to bay window
OUR WORK
OUR WORK

+15

Response time11 hrs
Response rate89%
11 neighbors recently requested a quote
Avatar for On Demand Contracting
On Demand Contracting
4.5(
49
)
Doors (Exterior) - Install or Replace

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

+110

Response time5 hrs
Response rate100%
42 neighbors recently requested a quote
Champion Windows of Ft.Collins
4.2(
130
)
Doors (Exterior) - Install or Replace

Serving Longmont, CO and surrounding areas

Approved (Corporate)

In business since 2000

Free estimates

Credit card accepted

"Joe and Joe walked us through the whole process. We really liked Champions selection and style of doors. Joe checked in with us during the process. On installation day the crew was quick, professional and tidy. We replaced both the front and back exterior doors. Everything was done in one day worth of work. Awesome experience!"
44 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for North South East and West LLC Home Solutions
North South East and West LLC Home Solutions
5.0(
45
)
Doors (Exterior) - Install or Replace

Serving Longmont, CO and surrounding areas

Approved

In business since 2013

Free estimates

Small jobs welcome

"Juan has done work for us over several years and we keep asking him to do more! He most recently helped patch holes in our drywall and ceiling, He also repaired our attic hatch, replaced the seal at the bottom of our garage door, installed a storm door, and put in a latch to hold our furnace filter in place. Juan does quality work AND is reasonably priced. He gives free estimates and schedules the work in a timely manner! We found a gem many years ago and will continue to hire him for projects!"
Response time4 hrs
Recommended by92%of homeowners
Flawless Results, LLC
4.2(
31
)
Doors (Exterior) - Install or Replace

Serving Longmont, CO and surrounding areas

Approved

In business since 1994

Free estimates

Credit card accepted

"Joel was the representative who came to discuss my options to repair my stucco & pain the exterior of my entire house. Joel was exceptional , very professional,, courteous & sincere! i was very impressed with this young gentleman! Also had lots of great ideas !! Highly recommend this company!"
Recommended by81%of homeowners
Avatar for Msite Property Services, LLC
Msite Property Services, LLC
5.0(
10
)
Doors (Exterior) - Install or Replace

Serving Longmont, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"Leo at Msite Property Services has done an incredible job. We have had many small to medium sized projects he has helped out on. His attention to detail and ability to come up with solutions has been really helpful. We would definitely recommend Msite for any residential and small commercial needs."
Original Windows
After renovation
Before
After reno
Ater renovation

+61

Response time6 hrs
Response rate97%
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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.