
Serving Maple Valley, WA and surrounding areas
Approved
In business since 2015
Free estimates
Warranties offered
"I highly recommend this company to do your insulation project."





+22

*The Angi rating for Insulation Service companies in Maple Valley, WA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Insulation Service needs.
*The HomeAdvisor rating for Insulation Service companies in Maple Valley, WA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Insulation Service needs.
Last update on May 28, 2025

Serving Maple Valley, WA and surrounding areas
Approved
In business since 2015
Free estimates
Warranties offered
"I highly recommend this company to do your insulation project."





+22

Serving Maple Valley, WA and surrounding areas
Approved
In business since 2009
Free estimates
Warranties offered
"Insulation Co (Jo Estrada) had insulation installers come to our century old house to remove old attic insulation, do a bit of mold remediation, insulate the bathroom fan exhaust, cover the two previously open gable spaces at either end of our roof, then blow in new cellulose insulation. All this took a day, and all was cleaned up like nothing happened. Polite, efficient, professional, and the price was competitive."





+46

Serving Maple Valley, WA and surrounding areas
Approved
In business since 2021
Free estimates
Credit card accepted
"Lake Atitlan Insulation did an excellent job in my attic. They removed the old insulation, installed a solar attic vent, replaced the bathroom vent duct, and added new blown-in fiberglass insulation. They also installed radiant barrier on all the attic roof rafters. The work was completed professionally and thoroughly. I highly recommend them."

Serving Maple Valley, 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"





+59

Serving Maple Valley, 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."



Serving Maple Valley, 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 👍👍👍👍👍"





+21
Serving Maple Valley, 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"

Serving Maple Valley, 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."





+5

Serving Maple Valley, WA and surrounding areas
Approved
In business since 2019
Free estimates
Emergency services offered
"ATI did an amazing job insulating my home. Their team was professional, efficient, and used top-quality materials. I noticed immediate improvements in comfort and energy savings. Highly recommend them for any insulation needs!"


Serving Maple Valley, 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!!"
From average costs to expert advice, get all the answers you need to get your job done.

Insulating your attic can massively improve your home’s efficiency and reduce electric bills. Use this guide to find out what attic insulation will cost you in Seattle, WA.

New insulation makes your home more comfortable and boosts energy efficiency. Use this guide to budget for insulation installation costs in Seattle, WA.

The cost of blown-in insulation in Seattle, WA varies depending on the type of insulation, labor, prep work, and more. Learn more about the cost factors in this guide.

What is insulation? This behind-the-scenes home fixture will maintain comfortable temperatures in your home no matter the season. It’ll lower energy bills, to boot.

Use this DIY checklist for insulation repair to make your living space more comfortable and reduce your heating and cooling bills in the process.

There are 10 types of insulation you can use for your home. Read this guide to discover which insulation types could be best for the job.