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TRUSTED BY BOULDER, CO HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon388
    Verified drywall insulation services reviews

Find Drywall insulation pros in Boulder

Avatar for Denver Insulation, LLC
Denver Insulation, LLC
4.5(
98
)
Blown-In Insulation - Install or Upgrade

Serving Boulder, CO and surrounding areas

Approved

In business since 1993

Free estimates

Credit card accepted

"I only needed part of my attic insulated and brought up to code. I had others try to sell me lots of services I didnâ t need, nor ask for. Denver Insulation came out, measured the area, and gave me a straight forward quote. Work was very fast and professional."
Untitled Gallery 1
 Poly
 Home
Untitled Gallery 1
 Ceiling

+10

Response time2 days
6 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Thermal Home Insulation
Thermal Home Insulation
5.0(
27
)
Blown-In Insulation - Install or Upgrade

Serving Boulder, CO and surrounding areas

Approved

In business since 1972

Free estimates

Emergency services offered

"Thermal Home Insulation did blown in insulation, air sealing, and radiant barrier work in my attic. The initial estimate took place quickly after my inquiry, and was very informative. Jim was able to get the job scheduled within 1 week as well, and was able to help me take advantage of a material discount and home energy efficiency program discount as well. The house already does a better job of retaining heat and cold. Thank you for the good work in a very timely manner, and for answering my questions along the way and being flexible. Would recommend to anyone with high energy bills due to their attic space temperature balance."
Attic Job from 2023
Attic Job From 2023
Attic Job From 2023
Attic Job From 2023
Attic Job 2023

+11

Response time1 day
26 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Trust Us Insulation
Trust Us Insulation
5.0(
20
)
Blown-In Insulation - Install or Upgrade

Serving Boulder, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Offers commercial services

"Gio was quick and did good work. Went above and beyond and fixed a few things in the area he was working in. Would definitely hire again for any future soundproofing or insulating needs"
Exterior top plate
Re-insulating attic
Re-insulating attic
Re-insulating attic
Exterior top plates

+10

Response time12 hrs
31 neighbors recently requested a quote
Recommended by38%of homeowners
Avatar for Empower Insulation, LLC
Empower Insulation, LLC
5.0(
11
)
Blown-In Insulation - Install or Upgrade

Serving Boulder, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Small jobs welcome

"I had an excellent experience with Empower Insulation from start to finish. They took the time to explain all of my options, answered every question I had, and helped me choose the best insulation solution for my home. I highly recommend Empower Insulation to anyone looking for top-notch insulation services. Great company, great service, and even better results!"
Custom Home New Build
Custom Home
Custom Home
Insulation Attic
Insulation Removal

+11

Response time1 day
1 neighbors recently requested a quote
Avatar for DINO Insulation, LLC.
DINO Insulation, LLC.
5.0(
15
)
Blown-In Insulation - Install or UpgradeInjection Insulation - Install

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 Insulation Nation
Insulation Nation
4.8(
10
)
Blown-In Insulation - Install or UpgradeInjection Insulation - InstallInsulation - Install or Upgrade

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

1 neighbors recently requested a quote
Recommended by80%of homeowners
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Showing 1-10 of 115
Drywall Insulation questions, answered by experts

Most load-bearing walls are exterior, though they can also be interior.

The best way to make long, straight cuts is to use a utility knife and a T-square to score the sheet, snap along the score, and then finish the cut by cutting through the paper on the opposite side with the utility knife. If you’re making small cuts, curved cuts, or cutouts for electrical boxes or light fixtures, you can use a manual jab saw to keep costs down, but an electric spiral saw or oscillating multi-tool will get the cleanest, fastest cuts possible.

Plaster is denser, harder, and more porous than drywall, so it absorbs moisture differently. This means you’ll often need more prep work, such as thorough sanding, patching, and priming with a high-quality bonding primer. Additionally, you may need more coats of paint to achieve even coverage. While the process takes more time, it helps ensure a durable and professional-looking result.

You’ll get better results if you soundproof the whole wall. A hole through which light can pass can also let sound waves in. Acoustical or silicone sealant applied to holes and cracks can block enough sound to make a difference. However, the more layers absorb vibrations and slow or stop sound waves, the less noise you’ll have. 

There are six levels of drywall finish, from 0 to 5, that refer to the amount of work performed during the finishing process.

Level 0: Drywall is hung with no finishing work.

Level 1: Tape is placed over the seams between drywall sheets.

Level 2: A thin layer of mud is applied over the tape and screw holes. This level is common for utility rooms or walls that will be covered.

Level 3: A full coat of mud covers the screw holes and tape, but the surface is not sanded. This is often used in garages.

Level 4: This is the most common finish for visible interior walls. It involves applying two coats of mud over seams and screw holes, with sanding between each coat, creating a smooth surface ready for flat paint.

Level 5: This is a high-end finish for luxury homes. It includes full taping, mudding, and sanding, plus a final skim coat over the entire surface before painting.

The Boulder, CO homeowners’ guide to drywall insulation services

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