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Best siding pros near Longmont, CO

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  • Average homeowner rating star icon3.9
    Average homeowner rating
  • Verified reviews icon238
    Verified siding services reviews

Top-Rated Siding pros in Longmont - Updated Nov 2026

Avatar for Martin and Sons
Martin and Sons
4.8(
176
)
Wood or Fiber-Cement Siding - Repair or Partially Replace

Serving Longmont, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Free estimates

Credit card accepted

"I had Martin & Sons replace some siding damaged by age and water, and also paint. Martin was with the crew supervising and working the whole time. The house had a special "notched or grooved" siding that doesn't seem to be made or readily available according to a couple of different contractors. Martin customized the siding to perfectly match the existing siding. Next day the painting crew came to paint the whole house. They did a great job, and even painted my shed which we hadn't discussed, but it definitely needed it. Overall very happy with cost and quality of workmanship!"
Response time2 days
79 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Bellwether Homes
Bellwether Homes
4.7(
27
)
Wood or Fiber-Cement Siding - Install or Completely Replace

Serving Longmont, CO and surrounding areas

Approved

In business since 2017

Free estimates

Warranties offered

"Colorado siding repair was so wonderful to work with. They came quickly to give us an estimate. The workers came and were SO EFFICIENT. In addition there was no mess left. We could not be happier that they were able to repair the sections without needing to replace all our siding. Thank you Colorado Siding Repair!"
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+95

Response time1 day
Response rate100%
20 neighbors recently requested a quote
Avatar for GS Exterior Experts Corp.
GS Exterior Experts Corp.
5.0(
26
)
Vinyl Siding - Install or Completely ReplaceWood or Fiber-Cement Siding - Install or Completely Replace

Serving Longmont, CO and surrounding areas

Approved

In business since 1999

Free estimates

Credit card accepted

"We loved working with Ernest. He answered every question I had in a very timely manner (within minutes of my text). We have 100% exterior siding (no rock or brick. Our house was a big job and Ernestâ s crew had our James Hardy siding completely finished within 2 weeks and they were able to start immediately. The crew worked non-stop except to break for lunch. I have referred a friend to GS exteriors and I will continue to refer people. I am 100% satisfied."
woodtone board and batten
James Hardie siding
fiber cement
hardie board
rustic

+7

Response time2 days
Response rate85%
Recommended by94%of homeowners
Avatar for Bellwether Windows, Siding, & Doors
Bellwether Windows, Siding, & Doors
4.8(
26
)
Wood or Fiber-Cement Siding - Install or Completely Replace

Serving Longmont, CO and surrounding areas

Approved

In business since 2015

Free estimates

Warranties offered

"Colorado siding repair was so wonderful to work with. They came quickly to give us an estimate. The workers came and were SO EFFICIENT. In addition there was no mess left. We could not be happier that they were able to repair the sections without needing to replace all our siding. Thank you Colorado Siding Repair!"
Response time1 day
Response rate100%
42 neighbors recently requested a quote
Avatar for Home Genius Exteriors
Home Genius Exteriors
4.8(
251
)
Vinyl Siding - Install or Completely ReplaceWood or Fiber-Cement Siding - Install or Completely ReplaceMetal Siding: Install or Completely Replace

Serving Longmont, CO and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"Very professional from start to finish. My Hardi plank siding had cracks and broken pieces missing. I had to replace that side of my house. Home Genuis did an excellent job replacing my siding. They started on time and finished on time and effectively communicated each step. The Project manager AJ was superb."
Asphalt Roofing
Asphalt Roofing
Asphalt Roofing
Asphalt Roofing
Asphalt Roofing

+37

124 neighbors recently requested a quote
Recommended by57%of homeowners
Adams Siding & Construction
4.6(
9
)
Vinyl Siding - Install or Completely ReplaceMetal Siding: Install or Completely Replace

Serving Longmont, CO and surrounding areas

Approved

In business since 1989

Free estimates

Credit card accepted

"Adams Siding and Construction did a wonderful job replacing the siding on two sides of my house that were damaged in the hail storm June 18th. Ron Adams was a pleasure to work with . I highly recommend them."
Response time1 day
Response rate95%
2 neighbors recently requested a quote
Avatar for BK Contractors
BK Contractors
4.6(
87
)
Metal Siding: Install or Completely ReplaceWood or Fiber-Cement Siding - Install or Completely Replace

Serving Longmont, CO and surrounding areas

Approved

In business since 1998

Free estimates

Warranties offered

"All the work went well. Paulo was very professional and responsive. We had a few delays that were out of his hands - mostly due to suppliers who were behind schedule. Nothing major, but Paulo communicated about all of these in a timely fashion. We replaced all of our vinyl siding with James Hardie board. Also replaced several exterior windows. Paulo also replaced all of our old gutters. Everything was painted to order including old soffets and fascia. Someone touched up the drywall texturing around the new windows and then painted everything to match. The work was done efficiently. They paid attention to detail and fabricated nice trims around outlets and utility vents. My only gripe would be that they didn't leave the roof clean, and after the first rain, I found a lot of debris and nails that had blown down into the yard and driveway. Everybody on his crew was friendly and respectful. There was always at least one person on site who spoke perfect English."
Victor Street Interior/Exterior Home Remodel
Arvada/Garland Street
Golden Siding Replacement and Concrete Patio Pour
Knox Court
Westminster Irving Renovation

+116

Response time2 days
Response rate100%
23 neighbors recently requested a quote
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Siding FAQs, answered by experts

Signs that you need to replace your siding include siding that’s warping, bubbling, or cracking; signs of rot or mold growth; fading, peeling, or chipped siding or paint; or siding that’s separating from the exterior of your house. Failing to replace your siding when it’s damaged can lead to moisture problems or structural damage, so promptly repair or replace siding as soon as you notice any of these signs.

You should consider acclimating the wood for your shou sugi ban siding for around two weeks before installation to balance its moisture content and prevent warping. That additional step will ensure your materials are prepped for installation, avoiding complex repairs down the line. Consult your siding contractor for additional installation instructions for this specialized material.

The lifespan of vertical siding depends on the type of material used and whether it’s properly maintained. For instance, vinyl siding can last between 20 and 30 years, while fiber cement siding can last up to 50 years. Remember that the type you choose will depend on how much maintenance it will require to prolong its longevity. 

For the materials alone, a square of siding costs an average of $600, but prices can range from $100 to $3,000, depending on the material. Vinyl siding costs toward the lower end of that range, while real brick or stone siding costs closer to the higher end. Keep in mind that many boxes of siding contain two squares, enough to cover 200 square feet, so you may need to double your cost if you only need one square.

Typically 1-2 days, depending on damage extent and panel availability.

The Longmont, CO homeowners’ guide to siding services

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