Top-rated insulation pros.

Get matched with top insulation pros in Bellevue, WA

Enter your zip and get matched with up to 5 pros

Need a pro for your insulation service project in Bellevue, WA?

Select your specific project to find the pro for you.

TRUSTED BY BELLEVUE, WA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon417
    Verified insulation services reviews

Find Insulation pros in Bellevue

Avatar for Insulation Northwest
Insulation Northwest
4.8(
105
)
Spray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade+2 more

Serving Bellevue, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Warranties offered

"Zero complaints. I have worked with Insulation Northwest twice now and have been very satisfied both times. The sales agent worked with me to find the best and most cost-effective solution, the customer service team is responsive, and the installers were professional, curtious, and pleasant. I recommend Insulation Northwest for all your insulation needs!"
Additional Photos
Additional Photos
Additional Photos
21 neighbors recently requested a quote
Recommended by75%of homeowners
Avatar for PNW Insulation, LLC
PNW Insulation, LLC
4.7(
251
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Bellevue, WA and surrounding areas

Approved

In business since 2015

Free estimates

Warranties offered

"PNW Insulation completed many insulation tasks on a house for me including wall insulation, crawl space and attic. They were very accommodating with scheduling the work at various times as each area was ready. I highly recommend them."
Before
All insulated
Final with Wmp
Getting ready to start
Inside office

+22

Response time1 day
Response rate93%
38 neighbors recently requested a quote
Avatar for Insulation Co., LLC - Removal & Clean Outs
Insulation Co., LLC - Removal & Clean Outs
4.9(
224
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Bellevue, WA and surrounding areas

Approved

In business since 2009

Free estimates

Warranties offered

"Insulation Co (Jo Estrada) had insulation installers come to our century old house to remove old attic insulation, do a bit of mold remediation, insulate the bathroom fan exhaust, cover the two previously open gable spaces at either end of our roof, then blow in new cellulose insulation. All this took a day, and all was cleaned up like nothing happened. Polite, efficient, professional, and the price was competitive."
1
2
3
1
2

+46

Response time5 hrs
Recommended by49%of homeowners
Avatar for Lake Atitlan Insulation, LLC
Lake Atitlan Insulation, LLC
5.0(
20
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Bellevue, WA and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

"Lake Atitlan Insulation did an excellent job in my attic. They removed the old insulation, installed a solar attic vent, replaced the bathroom vent duct, and added new blown-in fiberglass insulation. They also installed radiant barrier on all the attic roof rafters. The work was completed professionally and thoroughly. I highly recommend them."
4 neighbors recently requested a quote
Recommended by5%of homeowners
Avatar for Madrona Insulation
Madrona Insulation
4.9(
68
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade+2 more

Serving Bellevue, WA and surrounding areas

Approved

In business since 2009

Free estimates

Warranties offered

"Fantastic. Of all the home improvement companies who have worked on many different jobs at this house in six years, Madrona takes the cake for providing the best quality work and amazing customer service. Madrona was the only company who gave us a thorough plan to not only put insulation in the attic but also to improve ventilation and ensure all roof penetrations were properly sealed. They added 1300 ft of R-44 blown fiberglass insulation over existing rock wool insulation that was fine but inadequate, to bring it to R-49. They fashioned a new wood access panel to the attic with a huge covered batt of fiberglass insulation fastened on the upper side and it feels like opening a secure air lock on the rare occasions where we've looked up into the attic. After they sealed all air penetrations in the attic they were very happy to show us what they did before adding the insulation. They installed insulation shield around the chimney, six roof jacks for proper venting, and vented kitchen and bath fans to dampered roof jacks, insulated with R-11 fiberglass batts. Four years later, the attic looks fantastic - there is no sign of any moisture and the blown in insulation looks as fluffy and lofty as when it was newly installed. I mistakenly thought one of the bath vents had been filled with insulation foam, causing the fan to not work very well, and Madrona sent someone out the next day even though the job was completed four years ago. Curt investigated and then politely and patiently explained that the side vent had been replaced with a better roof vent. And indeed, the fan was blowing air through the roof vent they installed and it is the old fan that is the problem, not Madrona's work. It would be wonderful if all companies stood behind their work this way."
.
.
8 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for AT Foam
AT Foam
5.0(
5
)
Spray Foam Insulation - Install

Serving Bellevue, WA and surrounding areas

Approved

In business since 2003

Free estimates

Warranties offered

"Unbelievable company such great work. John is one of the best business man I have ever dealt with he deserves 20 stars. And his crew does to if you ever need insulation go here. No place else. Best in the state 👍👍👍👍👍"
Roof deck closed cell spray foam
SPF roof deck
SPF ceiling and gable end wall
Flat ceiling 2lb closed cell
Flat ceiling roof deck

+21

Response time10 hrs
Response rate98%
2 neighbors recently requested a quote
Madrona Home Services, LLC
4.7(
74
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade

Serving Bellevue, WA and surrounding areas

Approved

In business since 2010

Free estimates

Customers say: Quick response

"We had a wonderful attic insulation experience with Madrona Home Services! They had the best pricing, including the Puget Sound Energy discount and they managed all the paperwork. We were able to schedule two weeks after the quote, and their team worked fast and efficiently on installation day. They removed old saw dust insulation and laid down batting, as well as going above and beyond by creating an 8x8 storage platform. Our house feels noticably cozier with consistent temperatures. 10/10"
Response time1 day
4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for A G INSULATION LLC
A G INSULATION LLC
5.0(
9
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade

Serving Bellevue, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Offers commercial services

"Erick with AG construction came to my rental a week ago. He had the proper equipment to crawl under the house and determine what I needed to fix broken heat pipe, replace vapor barrier and replace insulation from a plumbing leak. I also had signs of rodents. He gave me a bid that was reasonable and was able to have his team on the job within a week. I stopped by as the work was being done and saw old insulation in bags headed for the dump. The area was left clean and his photos of the job look great. This is a very professional company and I would use them again for any crawl space work."
My jobs
My jobs
My jobs
My jobs
My jobs

+5

Response time12 hrs
Response rate95%
14 neighbors recently requested a quote
...
Showing 1-10 of 140
Insulation questions, answered by experts

Start by confirming local building permit requirements, as altering your thermal envelope requires official approval in Bellevue. Inspect your crawl space for standing water and resolve any drainage issues before adding materials. You must also arrange for professional asbestos testing if your home was built before 1980. Schedule your insulation service between May and September to avoid trapping seasonal moisture.

Helpful?

Prioritize an attic assessment, as many mid-century WA homes fall far below current minimum energy codes. Upgrade this area first to block heat loss and prevent winter moisture buildup. Next, inspect your crawl space and install a thick vapor barrier to stop ground moisture. Pair these steps with thorough air sealing during your insulation service to maximize your indoor comfort.

Helpful?

Upgrading your home with proper insulation service directly eliminates cold spots and drafts common during the long, damp Pacific Northwest winters. Fresh materials reduce condensation inside wall cavities, significantly improving your indoor air quality. Additionally, robust attic coverage blocks summer heat and dampens traffic noise from busy WA highways, keeping your living spaces consistently quiet and comfortable year-round.

Helpful?

Look for moisture or condensation in your attic, as Bellevue experiences heavy rainfall and fog that easily compress older materials. Noticeably cold floors or an overworked heating system during the winter months also signal failing thermal barriers. If you smell musty odors in your crawl space, schedule insulation service immediately to address potential mold and protect your home.

Helpful?

Perform a safe visual inspection of your attic and crawl space to identify wet patches, compressed materials, or torn vapor barriers. Use your hand near exterior outlets and attic hatches to detect cold drafts. Always hire a licensed professional for your insulation service if you find standing water, suspect asbestos in an older Bellevue property, or spot active knob-and-tube wiring.

Helpful?

The Bellevue, WA homeowners’ guide to insulation services

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