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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"
36 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Insulation Northwest
Insulation Northwest
4.8(
107
)

Serving Seattle, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Warranties offered

"Having my exterior walls insulated with NW Insulation really could have not gone better. First, I had the estimator come out just a couple days after I called, he spent an hour or so going over my house & checking the insulation and then figured out the estimate. I was shocked, with the PSE rebate, which NW Insulation takes care of, the estimate was thousands less than I thought it would be! I signed up, and a day or so later I got a call to schedule the install, again, surprisingly, they could do it right away and I scheduled for about a week out. The installers got to my house about 8am and were very polite and professional. They basically worked all day, got the job done, and were on their way. They left everything clean and it is amazing to me how the house looked when they were done. They blew in the insulation from the exterior and the method that they used left no trace, they removed a course of siding, drilled holes, filled the walls, plugged the holes, and replaced the siding"
Additional Photos
Additional Photos
Additional Photos
22 neighbors recently requested a quote
Recommended by74%of homeowners
Avatar for Insulation Co., LLC - Removal & Clean Outs
Insulation Co., LLC - Removal & Clean Outs
4.9(
225
)

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."
1
2
3
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+46

Response time5 hrs
Recommended by49%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

"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%
39 neighbors recently requested a quote
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

"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."
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

"This company is fantastic! 1. Out of the 5 companies I was considering for insulation replacement (yes 5), their quote was the only one that was itemized and understandable. You knew each task you were paying for as well as what the workers were promising to deliver, which is extremely important when dealing with contractors. I found this out having met with 20+ over the last month. 2. They had the most reasonable price, and Rory in particular worked to volunteer his expertise on what our situation needed/did not need with an honesty that is hard to come by because it did not come off as self-serving or trying to take advantage of our lack of expertise. 3. They were reliable, on time, and very communicative every step of the way. They touched base frequently about our complicated situation, they were available for price discussions, and they were direct in communicating arrival and finishing times. I was extremely impressed. 4. The individuals at this company went above and beyond the call of duty. Rory was a pleasure to deal with; he reminds me of the neighbor you want to have because he has great advice, good contacts if you need work outside his company, and reasonable suggestions for what you can do to fix things, and to boot he was extremely available. He even answered our many calls with random questions off-work hours AND he volunteered to come out himself again outside of work hours just to help figure out the steps to fixing our problem. Debbie was affable and an organized presence on the phone. The other staff we worked with- Santiago, Rafael, Luis, and Felix- were all extremely courteous and hardworking during the projects. 5. They worked to coordinate with other contractors without me having to micromanage anyone. I had a roofing company, arborist/tree service, and vent cleaners on site. They were able to navigate their own working space and work in tandem on the roof with the roofers to replace the insulation on the cathedral portion of the house when the underdeck was ripped off, as well as add baffles appropriately. 6. They brainstormed to fix problems we were having at extremely reasonable prices. Example: The attic portion of my home was missing half the ceiling (had to be removed because of extensive mold damage) and they helped me place drywall so we could replace the insulation on the timeline we initially agreed to. It saved my husband and me a lot of money and heartache. What more could you want from a company? The biggest impression I walked away with is that this company actually cares about your situation. My husband and I were purchasing a new home in need of a lot of repairs. We have a toddler and I am third-trimester pregnant. With the move, the unpleasant relationship we had with the previous owners of our home, the strain on our finances, and the overwhelming stress of finding new problems everywhere we looked, I can only say I am extremely grateful we went with Madrona Home Services. Thank you!"
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7 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
5 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%
114 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.