
This pro has maintained an average of 4.5+ star throughout their time with Angi.
Approved
Insulation Northwest
Batt, Rolled or Reflective Insulation Install or Upgrade, Blown In Insulation Install or Upgrade, Soundproofing Service,
This pro has maintained an average of 4.5+ star throughout their time with Angi.
About us
At Insulation Northwest, we've been providing homes and businesses with the best insulation products and expert service since 2006. No matter your insulation needs - home or business, installation or repair, we look forward to working with you
Business highlights
Se habla espanol
Veteran owned and operated
20 years of experience
Amenities
Free Estimates
Yes
Warranties
Yes
Accepted Payment Methods
- CreditCard
Reviews
4.998 Reviews
| Number of Stars | Image of Distribution | Number of Ratings |
|---|---|---|
| 91% | ||
| 7% | ||
| 0% | ||
| 1% | ||
| 1% |
Filter reviews by service
Showing 1-25 of 98 reviews
JIMMY R.
Jun 2026
Batt, Rolled or Reflective Insulation Install or Upgrade
Just finished with project
Awaiting final walkthrough
Bob W.
Jun 2026
Blown In Insulation Install or Upgrade
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
Karen G.
May 2026
Blown In Insulation Install or Upgrade
The crew was quick, efficient, fairly quiet and professional. Keith Hamm, their representative, was friendly and professional and informative.
He took pictures of everything he found and helped me understand exactly what I was looking at and where the biggest issues were. Being claustrophobic, I couldn't go into either the attic or crawlspace.
Oscar M.
May 2026
Blown In Insulation Install or Upgrade
Insulation Northwest did an outstanding job insulating the attic and walls of our 1940s Seattle house. From the initial sales conversation, through scheduling and the actual installation, the entire experience was seamless and fairly priced.
Vlad in sales was particularly great. He was knowledgeable, low pressure, and patient while I gathered other bids to compare. After looking around, Insulation Northwest still came out as the best option on price and value.
The crew was incredibly efficient. They knocked the whole job out in a single day while I was at work, and everything was clean when they took off. The whole team was professional and easy to work with. If I have another insulation project in the future, they're who I'm calling. Highly recommend.
Kate M.
Apr 2026
Blown In Insulation Install or Upgrade
Scheduling was easy and quick, and the workers did a great job and cleaned up well. There was a spot under a sink that the cellulose started coming in when they were blowing it in, but we found it quickly and they cleaned it up and sealed the hole so it wasn't a problem.
John D.
Apr 2026
Blown In Insulation Install or Upgrade
Five stars for the service and communication! The gentleman who provided our quote was very helpful, and the installers were tidy and professional. Even though there was a slight mix-up with the garage door insulation being forgotten, they handled it perfectly and came back to finish the job within the week. We wish the temperature difference in the garage was a little more noticeable, but we are satisfied with the job they did.
Brandon W.
Mar 2026
Spray Foam Insulation Installation
We did a remodeling project and reinsulate the whole house. Insulation NW provided very good price and professional services
Dennis T.
Mar 2026
Spray Foam Insulation Installation
Insulation NW did a great job on my attic insulation install. Both the estimator and the installation crew were knowledgeable, polite and they cleaned up after they finished. The price was most excellent as they included the PSE rebate in their quote.
Jason C.
Mar 2026
Insulation Install or Upgrade
Insulation Northwest's service was great all around. Fast, efficient, and friendly to work with!
Frank M.
Mar 2026
Blown In Insulation Install or Upgrade
Great job, fair estimate. Workers were very professional. Did a great job protecting the flooring, and workmanship was fantastic. Had extra blown in insulation added to my attic. Work included repairing/replacing any missing attic insulation baffles and pest exclusion as necessary.
Samantha L.
Mar 2026
Insulation Install or Upgrade
Responsive and informative during the initial quote. Got the job done quickly. Removed 1 star due to not receiving photos of the job afterwards after being told they would be sent.
Brad C.
Mar 2026
Blown In Insulation Install or Upgrade
They kept it clean, got it done, and were professional and responsive. We've used about an hour less of our furnace every day since.
Frank K.
Mar 2026
Batt, Rolled or Reflective Insulation Install or Upgrade
They arrived on time and were presentable. They insulated my attic and crawlspace and informed me of a water leak I was unaware of (repaired by me). The leak would have cost me thousands down the road if left as-is. Their price was competitive and the CNG rebates were deducted from my invoice and paid directly to them. They were a pleasure to deal with and made the process extremely easy.
Dennis T.
Jan 2026
Insulation NW did a great job on my crawl space insulation remove/install. Both the estimator and the installation crew were knowledgeable, polite and they cleaned up after they finished. The price was most excellent as they included the PSE rebate in their quote.
Jason T.
Dec 2025
Blown In Insulation Install or Upgrade
Had black Mold!!! Matt Hutson, Tim and Kali and others came out and did a thorough job improving ventilation in the attic, added a fan and new vents, increased our insulation to bring up to code, replaced all the baffles to durable plastic ones and got Purafog involved to mitigate all the mold! Really appreciate the work done!!
Josh W.
Dec 2025
Insulation northwest did a great job on my condominium attic space. Superior customer service super clean. A screen was damaged during the removal process.And they replaced it, no questions, asked. Their customer service department for appointment setting was absolutely wonderful. They worked with me on time would highly recommend insulation northwest.
Chelsie S.
Dec 2025
Arrived on time, completed job as expected.
Dennis T.
Dec 2025
Insulation NW did a great job on my crawl space insulation remove/install. Both the estimator and the installation crew were knowledgeable, polite and they cleaned up after they finished. The price was most excellent as they included the PSE rebate in their quote.
Nick G.
Dec 2025
From quote to install to inspection, it was a great experience. They were responsive and professional. Definitely recommend. The work was immediately noticed and my house is much more energy efficient.
Joachim W.
Dec 2025
Great company to work with. Crawl space and ductwork insulation was failing badly. They came in, removed all the old stuff, replaced everything with new inulation tied into the crawl space joists. Very professional looking. Photos and my going into the crawl space showed everything clean.
The PSE rebate was significant and all paperwork was handed by Insulation Northwest, a simple and seamless process for me, the homeowner. This was a tough, dirty job that was done in one day to a level exceeding my expectations.
Brian M.
Nov 2025
Great work. They even worked around other projects I was getting done. I would definately hire them again.
Brianna W.
May 2025
It went great! Very informative and offered rebates to provide an affordable experience.
Vanessa O.
May 2025
The Insulation Northwest staff and crew took great care of me! I got a crawlspace cleanout, and the company sent crew back to address some residual concerns at no extra charge! I felt valued as a customer that Insulation Northwest was willing to go the extra mile to make sure I would be 100% satisfied. That's exactly how I felt! 100% satisfied now! All my concerns regarding rodent droppings had been addressed!! I feel so much better going down into my crawlspace, and feel like I'm breathing better heated air in the house! Customer service throughout the transaction was top notch! I got timely responses! Everyone was professional, courteous, and solution-oriented! Even the crew was awesome and eager to get the work done! Everyone was so kind and approachable! I am looking forward to having Insulation Northwest take care of my future crawlspace and attic needs! THANK YOU SO MUCH! I knew I picked the right company!
Brooke M.
Apr 2025
Great service! Highly recommended!
Dane J.
Mar 2025
Insulation Northwest Representative returned my phone inquiry surprisingly fast. An appointment was made for a company representative to visit our home and give an estimate. We received a PDF within 48 hours. Gave it a review and reassessment in how this would or wouldn't fit our plan to correct the winter and summer temperature fluctuations we were experiencing in the rooms immediately above.
Licensing
State Contractor License Requirements
All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our Find Licensing Requirements page.
*Contact business to see additional licenses.
FAQ
Insulation Northwest is currently rated 4.9 overall out of 5.
Insulation Northwest accepts the following forms of payment: CreditCard
Yes, Insulation Northwest offers free project estimates.
No, Insulation Northwest does not offer eco-friendly accreditations.
No, Insulation Northwest does not offer emergency services.
Yes, Insulation Northwest offers warranties.