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

Avatar for Insulation NW
Insulation NW
4.8(
81
)

Serving Seattle, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Warranties offered

"The estimator was great, he listened to my concerns and offered options that suited my needs. The workers were respectful and got to work right away. I had insulation installed under my floor in the crawl space, a ground cover installed, ducts sealed, and the garage ducts wrapped. I was very happy with the insulation results, I no longer feel a difference in air temperature between rooms. I was not thrilled with the ground cover nor the garage ducts wrap, these jobs seemed rushed. The ground cover had multiple holes and was not put down with a function or pleasing aesthetic in mind. The garage ducts wrap is definitely helping with the loss of heat, but it looks clumsy with white tape all over the place. Overall I'm satisfied. I just think parts of the job were rushed."
Additional Photos
Additional Photos
Additional Photos
15 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Insulation Co., LLC - Removal & Clean Outs
Insulation Co., LLC - Removal & Clean Outs
4.9(
204
)

Serving Seattle, WA and surrounding areas

Approved

In business since 2009

Free estimates

Warranties offered

"Insulation Co recently performed a crawlspace cleanout. Jo Estrada performed a bid for my home based upon on-line square footage and floor plans very quickly. His staff of 3 men arrived at about 7:30 AM and completed the crawlspace cleanout in about 7 hours. Several things that I learned during this process my 1998 built home: Had insulation with formaldehyde Had R-19 insulation - New installed insulation was R-30 The old insulation was no longer efficient after 20 years The new (R-30) insulation will be efficient for 30 years Insulation Co also does attic insulation replacement When they completed the crawlspace cleanout, the crawlspace looked better than it did when the home was new."
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+46

Response time5 hrs
Recommended by52%of homeowners
Avatar for PNW Insulation, LLC
PNW Insulation, LLC
4.8(
212
)

Serving Seattle, WA and surrounding areas

Approved

In business since 2015

Free estimates

Warranties offered

"A joy working with PNW insulation again, every time they are wonderful. We had spray + batt insulation installed. The crews were awesome and efficient. Highly recommend Andres is wonderful to work you."
Before
All insulated
Final with Wmp
Getting ready to start
Inside office

+22

Response time1 day
Response rate93%
45 neighbors recently requested a quote
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%
5 neighbors recently requested a quote
Avatar for Lake Atitlan Insulation, LLC
Lake Atitlan Insulation, LLC
5.0(
18
)

Serving Seattle, WA and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

"The lake atitlan, insulation team just finished replacing our old blown in insulation in our attics with white R-38 rolled batt insulation. Overall, we were very happy with their work and attention to detail. Everything was spotless when they left. They were also a few thousand dollars less expensive than a bid we got from a larger local chain. The old insulation was blocking the soffit vents (under the gutters) allowing moisture and black mold to develop on the underside of the roof sheeting. First, they built a plastic tunnel from the front door up to the upper attic access door in the top of a closet near the bedrooms. This prevented any debris from the job filtering into the house as well as protecting the carpet. Next, they removed all the old insulation with the assistance of a giant vacuum. The black mold on the underside of our roof sheeting was treated and the new insulation installed. It now looks like a field of freshly fallen snow up there and no blocked vents."
11 neighbors recently requested a quote
Recommended by5%of homeowners
Avatar for Madrona Insulation
Madrona Insulation
4.9(
65
)

Serving Seattle, 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."
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6 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for A G INSULATION LLC
A G INSULATION LLC
5.0(
8
)

Serving Seattle, 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%
13 neighbors recently requested a quote
Avatar for Acorns Attics & Crawls, LLC
Acorns Attics & Crawls, LLC
5.0(
14
)

Serving Seattle, 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 rate99%
23 neighbors recently requested a quote
Showing 1-10 of 21
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.