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

Find Siding pros in Longmont

Avatar for Ideal Siding Denver
Ideal Siding Denver
5.0(
32
)
Metal Siding: Install or Completely ReplaceMetal Siding: Repair or Partially ReplaceSiding Installation or Repair+4 more

Serving Longmont, CO and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"Our house was in bad shape. Hired this company to do the siding replacement and in 1 and a half weeks we had the whole house re-sided, all debris was cleaned up and I was left with a new house. The communication was executed with top notch professionalism. A trustworthy choice for exceptional siding installation services."
James Hardie Lap Siding and Shingles
James Hardie Board and Batten
James Hardie Lap Siding and Shingles
James Hardie Board and Batten
James Hardie Lap Siding and Shingles

+72

Response time2 days
3 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Martin and Sons
Martin and Sons
4.8(
175
)
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

"They did repair and replacement of several areas of siding on our 25 year old house. Very high quality of workmanship and did a great job blending the new siding with the old to make it look great."
Response time2 days
95 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!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+95

Response time1 day
Response rate100%
23 neighbors recently requested a quote
Avatar for GS Exterior Experts
GS Exterior Experts
4.7(
148
)
Wood or Fiber-Cement Siding - Install or Completely Replace

Serving Longmont, CO and surrounding areas

Approved

Super Service Award Winner

In business since 1999

Free estimates

Emergency services offered

"Our experience was very positive. I dealt with Juan Vigil (by phone at office) and Oswald Hernandez (on-site). We had 50 year old siding removed and they replaced it with Hardie Board siding because of the new law for houses in the WUIF areas (it's fire resistant siding). GS are Hardie Board experts, and it was done very methodically and expertly. They brought in their own dumpster and PortaPotty for their crews. Every day, they cleaned up before leaving. The lights they had to remove to install the siding they replaced in a way that looked much better than before. I feel confident with this new siding! Well Done!"
Elizabeth CO re side project
woodtone rustic series summer wheat
New james hardie siding and trim
Multi family exterior remodel
Elizabeth CO re side project

+174

Response time1 day
Response rate100%
28 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%
39 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

"Paolo and his crew were a true treat to work with. We have been doing a full house addition and remodel, and after having several setbacks, paolo and his team came in and were able to totally redo siding, trim out a covered patio, replace gutters and paint the house. They bent over backwards to make sure 1) things were done in the right order (even coming out for 1 random day to do facia before my roofers came out and put a roof on the house) and 2) Make sure that I was happy with the end product: consistently telling me "We want you to be happy- you have to live here, so lets make sure we get this right." The two man team was here long hours over a couple of weeks, always was sure to clean up well in the evening and left the house very clean at the end of the project, and were courteous to anyone else here, collaborated well with other trades, and were kind to my kids (super important in my book!). After dealing with a lot of trades during this project that were mediocre, un-responsive, and some down right rude, it was a breath of fresh air to work with someone who did excellent work, had good follow up, and listened to my ideas and made them come to life. I would highly recommend."
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%
15 neighbors recently requested a quote
Avatar for Ideal Siding Boulder
Ideal Siding Boulder
4.7(
12
)
Vinyl Siding - Install or Completely ReplaceVinyl Siding - Repair or Partially ReplaceWood or Fiber-Cement Siding - Repair or Partially Replace+3 more

Serving Longmont, CO and surrounding areas

Approved

In business since 2019

Free estimates

Warranties offered

"Ideal Siding surpassed expectations installing a new siding on our house and repairing gutters and fascia. Transparent communication, quality workmanship, and efficient installation made the process smooth. Happy with the results."
James Hardie Installation
James Hardie Installation
James Hardie Installation
James Hardie Installation
James Hardie Installation

+31

Response time10 mins
7 neighbors recently requested a quote
Recommended by90%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%
5 neighbors recently requested a quote
Avatar for High Rise Gutter & Repairs
High Rise Gutter & Repairs
4.8(
151
)
Vinyl Siding - Install or Completely ReplaceVinyl Siding - Repair or Partially Replace

Serving Longmont, CO and surrounding areas

Approved

In business since 2017

Free estimates

Warranties offered

"Michael did an outstanding job with replacing the siding on the full back side of our home in Greeley! And he and his crew did more than a professional job with it. We got all of this fantastic quality service at an extremely affordable rate, too. His attention to detail and concern for our costs were very appreciated. We HIGHLY recommend Michael and his crew!!!"
My jobs
My jobs
My jobs
My jobs
My jobs

+17

3 neighbors recently requested a quote
Recommended by72%of homeowners
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Siding questions, answered by experts

Although horizontal siding is found on more homes and deemed more popular, vertical siding is gaining popularity and becoming more trendy. Its ability to make homes appear taller and modern design is making it a favorite among homeowners. Plus, the vast style options available make it suitable for various architecture types. 

Siding underlayment varies based on the type of material, but most siding is installed on top of a vapor barrier, a moisture-resistant house wrap, sheathing made from plywood or oriented strand board (OSB), and a layer of insulation sheeting. Having the correct underlayment is a critical part of properly installing siding and will protect your home from water intrusion, structural damage, and energy loss.

The cost to install or replace brick or stone siding generally ranges from $10 to $50 per square foot. The final price depends on several factors, including the specific material type, local labor rates, and any necessary preparation work, such as removing old siding. For example, different types of stone have varying costs per square foot: natural stone ($4.50–$35), stone veneer ($11–$13), faux stone ($6–$9), and cultured or manufactured stone ($5–$8).

Not wrapping a house before installing siding can lead to moisture intrusion, rot, mold, and even higher energy bills. Older houses may have siding installed without wrap underneath, so it’s a good idea to add a wrap layer when it comes time to replace old siding to prevent potential damage from water intrusion—local codes may even require it, so check with your municipal building authority. 

On it own, aluminum siding has a relatively low insulation value (also called R-value); aluminum siding has an R-value of 0.61. However, you can purchase insulated aluminum siding to increase the R-value to between 2 and 5. You can also install additional insulation within your walls to help maintain temperatures within your home. On average, insulation costs $1,825 to install throughout the typical home.

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.