Top-rated insulation pros.

Get matched with top insulation pros in Seatac, WA

Enter your zip and get matched with up to 5 pros

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

Select your specific project to find the pro for you.

TRUSTED BY SEATAC, WA HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon154
    Verified insulation services reviews

Find Insulation pros in Seatac

Avatar for Insulation Northwest
Insulation Northwest
4.8(
107
)

Serving Seatac, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Warranties offered

"Insulation NW did an excellent job of removing old inadequate insulation from an attic and crawlspace and replacing it with new insulation and wrapping the ductwork. They had two crews, one for the attic and one for the crawlspace, working for many hours to complete the job. A vapor barrier was also installed in the crawlspace. We paid a very reasonable price after the large PSE Rebate was applied."
Additional Photos
Additional Photos
Additional Photos
25 neighbors recently requested a quote
Recommended by74%of homeowners
Avatar for PNW Insulation, LLC
PNW Insulation, LLC
4.7(
252
)

Serving Seatac, WA and surrounding areas

Approved

In business since 2015

Free estimates

Warranties offered

"PNW Insulation did a great job. Sprayed insulation in our walls and rolled insulation in the attic space. They were fast and professional, skilled and easy to communicate with. Would recommend them 100%"
Before
All insulated
Final with Wmp
Getting ready to start
Inside office

+22

Response time1 day
Response rate93%
35 neighbors recently requested a quote
Avatar for Lake Atitlan Insulation, LLC
Lake Atitlan Insulation, LLC
5.0(
20
)

Serving Seatac, WA and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

"I hired the company Lake Atitlan Insulation Llc for the cleaning of my attic and new insulation. I was satisfied with their service. They are very punctual and respectful. I recommend them."
3 neighbors recently requested a quote
Recommended by5%of homeowners
Avatar for Insulation Pro Inc.
Insulation Pro Inc.
5.0(
19
)

Serving Seatac, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Warranties offered

"I hired insulation pro inc to replace my old insulation in crawl space Eric came and give me a reasonable price And they over delivered. Highly recommend them"
Attic project
During job progress
During process
Crawl space full service
Before project crawl space

+59

Response time5 hrs
Response rate95%
11 neighbors recently requested a quote
Avatar for Madrona Insulation
Madrona Insulation
4.9(
68
)

Serving Seatac, WA and surrounding areas

Approved

In business since 2009

Free estimates

Warranties offered

"It went very well from the estimate process. Rory took the time to explain the process. As I had questions, he took the time to talk to me and explain in detail. Deb coordinated the scheduling extremely well. Among the estimates I got they were the most reasonably priced. I started out only doing the attic. They did such a good job, I decided to go ahead and have the crawlspace insulated as well by Madrona Insulation. BTW, shout out to a terrific installation crew!"
.
.
8 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for AT Foam
AT Foam
5.0(
5
)

Serving Seatac, 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
Avatar for A G INSULATION LLC
A G INSULATION LLC
5.0(
9
)

Serving Seatac, 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 time9 hrs
Response rate97%
11 neighbors recently requested a quote
Avatar for Acorns Attics & Crawls, LLC
Acorns Attics & Crawls, LLC
5.0(
17
)

Serving Seatac, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Credit card accepted

"I hired Acorn Attics to insulate my house and I couldn’t be more happy with their work. Phil and his crew were on time, friendly and incredibly hard workers. He worked with me on scheduling and made sure to keep our project moving even when we had a setback with another repair. I highly recommend them. They will get the job done. Thank you Acorn Attics and Crawl Spaces!!"
Response time4 hrs
Response rate100%
29 neighbors recently requested a quote
...
Showing 1-10 of 148
Insulation questions, answered by experts

The lifespan of crawl space insulation depends on how well you maintain your insulation and the type of insulation. Fiberglass will need replacing every 15 to 20 years on average if you don't have a vapor barrier in place. If you do have vapor barriers in place, then your insulation could last much longer. Spray foam insulation can last anywhere from 80 to 100 years. 

A-frame houses pose specific challenges that can make heating difficult. Their open concept design with high ceilings can lead to a colder lower floor and a warmer upper floor. A ceiling fan that pushes warm air down or pulls cold air up, depending on the season, can easily counteract temperature issues. Additionally, certain types of heating do better in these homes than others. For example, heated floors tend to be more practical and energy efficient than baseboard heating.

When it comes to fiberglass insulation versus foam board, there are a few notable differences, both aesthetically and functionally. Fiberglass insulation is soft and flexible, meaning it can be squeezed into tight spaces more easily than foam board. Fiberglass insulation also has a higher R-value, making it a better pick for colder climates. However, foam board insulation can resist moisture and pest damage much better than fiberglass.

Yes, crawl space insulation is worth it if installed correctly. Installing insulation in your crawl space will improve the air quality, help stabilize your home's temperature, lower your energy bills, and prevent pests from entering your home. Though you’ll pay more to install insulation initially, the savings you get from installing insulation can help offset those initial costs over time.

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.

The Seatac, WA homeowners’ guide to insulation services

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