Top-rated batt, rolled or reflective insulation install or upgrade pros.

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Find Batt, rolled or reflective insulation install or upgrade pros in Seattle

Energy Pro Insulation, Inc.
4.7(
312
)

Serving Seattle, WA and surrounding areas

Approved

In business since 2014

Free estimates

Credit card accepted

"I had them come out to do a blower test to see where the leaks were for my house. They came out same week. The test was very cool. I got to feel where all the leaks were coming from in my house and see where we were missing insulation. I'd recommend having them come out and do this before having anyone do insulation. I plan on having them come out and fix my leaks"
35 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Insulation Northwest
Insulation Northwest
4.8(
105
)

Serving Seattle, 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
21 neighbors recently requested a quote
Recommended by74%of homeowners
Avatar for PNW Insulation, LLC
PNW Insulation, LLC
4.7(
251
)

Serving Seattle, WA and surrounding areas

Approved

In business since 2015

Free estimates

Warranties offered

"Great job! The project of getting spray foam insulation installed under our house went exceptionally well, from start to finish. We got an estimate the same day we called, the install was done well, at a good price, was completed on time. We are very happy with the staff and the work. Thank you, PNW Insulation!"
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
)

Serving Seattle, WA and surrounding areas

Approved

In business since 2009

Free estimates

Warranties offered

"Jos company did top notch work. Crawl space insulation installation was done right, and we can notice a difference in the overall house temperature. Insulation technicians worked quickly and efficiently. Would definitely use Insulation Co. again. Thanks Jo"
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
)

Serving Seattle, WA and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

"We were considering upgrading our insulation but weren't sure if it was worth the investment. After consulting with Lake Atitlan Insulation, they convinced me it was the right choice. The insulation they installed not only made our home more comfortable but has already saved us money on energy costs."
4 neighbors recently requested a quote
Recommended by5%of homeowners
Avatar for Madrona Insulation
Madrona Insulation
4.9(
68
)

Serving Seattle, 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!"
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8 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Insulation Pro Inc.
Insulation Pro Inc.
5.0(
19
)

Serving Seattle, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Warranties offered

"We literally been roasted in our house especially on the second floor with that late heatwave going on . Eric from Insulation Pro took care of our attic. Full insulation replacement. Some mold problems and vents to reconnect . I was skeptic I even tested with the thermostat furnace but it literally did the job. Couldn't be happier."
Attic project
During job progress
During process
Crawl space full service
Before project crawl space

+59

Response time5 hrs
Response rate91%
6 neighbors recently requested a quote
Madrona Home Services, LLC
4.7(
74
)

Serving Seattle, 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 Attic Doctor LLC
Attic Doctor LLC
5.0(
21
)

Serving Seattle, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"I requested an inspection of our attic to assess what needed to be done to improve its condition. I thought it may need an upgrade. Other venders earlier had told me that they would recommend new and/or added insulation, air sealing, mold treatment, etc. to the tune of multiple thousands of dollars. Brennen from Attic Doctor was the one who did our inspection. He explained why our attic really did not need much work to make it good. Contrary to others, he said we didn't need to upgrade our insulation, but just rearrange the already-adequate batting to free up the soffit vents and cover gaps, along with doing my own air leaks sealing or hiring a handyman at a much lower cost. He said we had no mold, as was asserted by another vendor. Washington State does not oversee the insulation vendors well so many can throw out their shingle with minimum expertise (effective lobbyists in Olympia?). Brennen has a college degree in construction science and knows his stuff. He was also honest with me"
Response time12 hrs
Response rate96%
115 neighbors recently requested a quote
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FAQs for batt, rolled or reflective insulation install or upgrade projects in Seattle, WA

Batt insulation excels in vertical installations because it remains firmly in place and delivers consistent thermal performance. Blown-in insulation performs exceptionally in spaces such as attics, efficiently filling gaps in irregular areas. 

Employing both insulation types according to their strengths enhances your home’s overall energy efficiency and comfort by providing a tailored solution for every space.

Start by measuring the square footage of the space, then match that area with the insulation thickness you need to hit your target R-value. Add a buffer for waste and odd-shaped spots so every cavity is covered. 

Once you have a rough count, run it past a local insulation pro—their on-site advice will fine-tune the numbers and help you avoid costly miscalculations.

Old insulation that is dry, intact, and mold-free does not require removal before adding new insulation; stacking new insulation over it maintains effective thermal performance and boosts energy efficiency. 

If the insulation is damp, moldy, or deteriorated, removal is necessary to eliminate health risks and ensure maximum effectiveness of the new layer. A professional insulation contractor will assess your situation and recommend the most effective solution.

Installing insulation in an average-sized home using batts or boards requires five to 12 hours. Using spray foam or blown-in insulation requires two to five hours. These timeframes are determined by the area’s size, accessibility, and whether old insulation must be removed. 

Complex projects and hard-to-reach spaces demand extra time. Hiring an experienced insulation professional ensures that the installation is completed efficiently and correctly.

Insulation is measured by R-value, which defines how effectively it resists heat flow. A higher R-value provides superior thermal resistance, ensuring your home remains warm in winter and cool in summer. 

Choosing the correct R-value is essential for maximizing energy efficiency and comfort, and it directly impacts long-term utility savings. Professional guidance determines the optimal R-value for your specific climate.

The Seattle, WA homeowners’ guide to batt, rolled or reflective insulation installs or upgrades

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