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TRUSTED BY BOULDER, CO HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon162
    Verified insulation services reviews

Find Insulation pros in Boulder

Avatar for Advanced Insulation Solutions
Advanced Insulation Solutions
4.9(
122
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Boulder, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Small jobs welcome

"Jason and the crew were very professional. After talking with multiple contractors the choice was clear. I was given 3 options for insulation. Reg blown, closed cell on deck with blown, or full blown deck and bottom of the roof. We chose to go with foam bottom and blown on top of it. These guys had nice equipment and were fast and accommodating to schedule. So happy we chose Advanced Insulation Solutions to do the work! Thanks again!"
R13 batt install on the perimeter
Double Garage and Attic
Basement repair
Basement
Closed Cell Foam Roof Decking

+44

Response time1 day
25 neighbors recently requested a quote
Recommended by95%of homeowners
Bestway Insulation, LLC
4.1(
286
)
Blown-In Insulation - Install or Upgrade

Serving Boulder, CO and surrounding areas

Approved

In business since 1976

Free estimates

Emergency services offered

Home Pro of the Year in 2010 (Service Magic)Home Performance Contractor of the Year for the last 8 out of 10 years. We are a company that specializes in re-insulating existing homes by using blown-in insulation and getting huge reductions on our customers energy bills by Air Sealing and compressing fiberglass or rockwool in the walls and Dense packing it tight.Where most companies are happy getting 10%energy reductions on their clients homes, we want 50% or higher. Our family has owned and operated Bestway Insulation, LLC, in Colorado since 1976. Born & raised CO. Top Rebate producer for air sealing in 2009 - 2021. Home Performance with energy star Contractor of the year 21 out of 23 Years starting with NREL when they were doing it in 1996. I want huge results for my clients.

Response time1 day
19 neighbors recently requested a quote
Recommended by79%of homeowners
Avatar for DINO Insulation, LLC.
DINO Insulation, LLC.
5.0(
15
)
Blown-In Insulation - Install or UpgradeInjection Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade+1 more

Serving Boulder, CO and surrounding areas

Approved

In business since 2021

Free estimates

Offers commercial services

"Alvin is a very good worker and takes pride in his work. The spray foam work is amazing and I definitely recommend it. I had insulation done as well and had no complaints. Everything from business to work is great with DINO insulation."
Attic
Attic
attic
Spray foam
Spray foam

+15

Response time1 day
7 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Empower Insulation, LLC
Empower Insulation, LLC
5.0(
11
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Boulder, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Small jobs welcome

"Empower Insulation did a fantastic job installing insulation at my house. They were professional, efficient, and made sure everything was done right. I really appreciated their attention to detail and how clean they left the space afterward. Highly recommend them if you’re looking for quality insulation work!"
Custom Home New Build
Custom Home
Custom Home
Insulation Attic
Insulation Removal

+11

Response time1 day
4 neighbors recently requested a quote
Avatar for Insulation Nation
Insulation Nation
4.8(
10
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeInjection Insulation - Install+1 more

Serving Boulder, CO and surrounding areas

Approved

In business since 2023

Free estimates

Warranties offered

"We were very impressed with Insulation Nation’s professionalism, promptness, cleanliness and the incredible results we have experienced from the job they did in our attic. They made the process very easy at a reasonable price and we would strongly recommend them!"
Filled all exterior walls with dense pack cellulose insulation
Installed radiant barrier throughout entire attic above garage.
Additional Photos
Additional Photos
Additional Photos

+1

4 neighbors recently requested a quote
Recommended by80%of homeowners
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Insulation questions, answered by experts

Spray foam insulation doesn’t do well around heat sources. Therefore, You can use spray foam insulation to seal around HVAC boots that penetrate through the drywalls or around where wrapped ducts connect to the boots, but we don’t recommend using spray foam insulation to encapsulate your air ducts. Spray foam insulation on air ducts is also less effective compared to duct wraps.

Canned spray foam has an R-value of R-3.7 per inch. However, it’s not great for use as insulation. Also known as single-component spray foam, it doesn’t expand as much as two-part types that work for insulating the whole house. Save the canned foam for gaps around doors and windows.

You can buy pipe insulation materials in your local hardware store or in major home improvement stores. You can also shop for insulation online, where you may be able to more easily buy in bulk. When shopping, make sure you know your pipe's dimensions so you can buy the correct size of pipe insulation materials for your pipes.

The amount of insulation you need will vary depending on where you live. Energy Star recommends certain minimum insulation values in different geographic regions. In most cases, however, even adding a little insulation is better than not adding any.

Rockwool insulation can last up to 100 years, but just how long this insulation lasts in your home depends on how well it's maintained. Poorly installed insulation may last only 30 years, so be sure to regularly inspect your home's insulation for water damage, settling, and pests to give your insulation the best chance of having a long lifespan.

The Boulder, CO homeowners’ guide to insulation services

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