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Best insulation pros near Snoqualmie Pass, WA

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Top-Rated Insulation pros in Snoqualmie Pass - Updated Nov 2026

Avatar for Lake Atitlan Insulation, LLC
Lake Atitlan Insulation, LLC
5.0(
20
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Snoqualmie Pass, 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."
7 neighbors recently requested a quote
Recommended by5%of homeowners
Avatar for Madrona Insulation
Madrona Insulation
4.9(
68
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeSpray Foam Insulation - Install+2 more

Serving Snoqualmie Pass, 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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4 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for AT Foam
AT Foam
5.0(
6
)
Spray Foam Insulation - Install

Serving Snoqualmie Pass, WA and surrounding areas

Approved

In business since 2003

Free estimates

Warranties offered

"John and his team did a great job on my liveaboard. The team was communicative and timely. The fee was very fair and the results were great. I’d work with them again anytime."
Roof deck closed cell spray foam
SPF roof deck
SPF ceiling and gable end wall
Flat ceiling 2lb closed cell
Flat ceiling roof deck

+21

Response time10 hrs
Response rate98%
4 neighbors recently requested a quote
A G INSULATION LLC
5.0(
10
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade

Serving Snoqualmie Pass, WA and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

A G INSULATION LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business. \n

Recommended by22%of homeowners
Avatar for WASHINGTON RETROFOAM LLC
WASHINGTON RETROFOAM LLC
4.8(
6
)
Injection Insulation - Install

Serving Snoqualmie Pass, WA and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

"My 1959 home with unique siding presented specific challenges on this job. Some of the plug work done was PERFECT, and much of it was not, resulting in unsightly exterior appearance and challenging sanding and finishing being required by me, the homeowner. This company COULD have done all the plugs perfectly, but chose not to do so. In addition, I had to request a receipt for the work, and I was not provided with a written copy of the verbal warranty stated by the owner of the company."
My jobs
My jobs
My jobs
My jobs
My jobs

+22

Response time2 days
Response rate100%
14 neighbors recently requested a quote
Avatar for WALLET-FRIENDLY INSULATION LLC
WALLET-FRIENDLY INSULATION LLC
5.0(
2
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Snoqualmie Pass, WA and surrounding areas

Approved

In business since 2022

Free estimates

Warranties offered

"I started this project months ago to completely reinsulate my attic with none of the experience; let me tell you, not a beginner-friendly DIY project. You gotta be Spider-Man to crawl around in my attic space, which I did numerous times. My friend and I spent 3 hours blowing insulation into the attic one morning, making our way through 12 bags of cellulose. After that I called Wallet-Friendly and I'm so glad I did. Martin reassured me with his confidence and plan that they would do a much better and safer job than I ever could. Plus they live up to their name! Two days later Martin and Gary distributed 58 more bags of cellulose in less than 2 hours. But I didn't order enough and we needed more! The cellulose arrived two days later and so did Wallet-Friendly Insulation to finish the job. Just in time for another heat wave!"
57 neighbors recently requested a quote
Avatar for SOS Crawl Space Insulation
SOS Crawl Space Insulation
4.8(
77
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Snoqualmie Pass, WA and surrounding areas

In business since 2011

Emergency services offered

"From the initial contact to the payment I couldn't be happier. Daniel was able to come out within a few days to get me a free inspection and less then a hour after that I had a quote sent to me. I had a range that I was hoping to pay for this but didn't mention that amount to Daniel prior to his quote and wouldn't you know it his quote was right on that mark. Daniel was able to get me on the schedule within 4 days of estimate. Crew showed up on the set date and got to work. Completed the work really quickly and not one single issue along the way. Once work was complete Daniel let me know and payment was made. Was able to enjoy a much warmer home the rest of the weekend and as mentioned I couldn't be happier. If anyone I know even mentions insulation I will be giving them SOS contact. Highly recommend Keep up the good work SOS you guys ROCK!"
hard workers
after
after
Recommended by100%of homeowners
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Insulation FAQs, answered by experts

Yes, guiding choices between open-cell and closed-cell foams based on needs.

Ductwork sweats due to a temperature difference between the air inside the ducts and the surrounding air, similar to how a cold drink develops condensation in the heat. This sweating is a sign that your HVAC system is not operating at peak efficiency. The best way to keep ductwork from sweating is to wrap it in proper insulation, which also improves your system's energy efficiency. Another option is to close off your crawl space and install a dehumidifier to dry the air and lower its dew point.

You can insulate an existing garage door. But while it’s a cost-effective option upfront, it may not perform as well as a garage door that comes with insulation. If you live in a colder climate—or if you plan on working in your garage and need a new door—you should purchase one with existing insulation for better efficiency. 

Although the cost might seem high, winterizing your home is important for your health and the structural integrity of your home. Winterizing will keep your home warm and toasty during the cold months and prolong the life of your appliances, windows, pipes, sprinkler system, pool, and more. 

It depends on your needs and preferences, though many homeowners think it is worth it. Not only is blown-in insulation easy to install, but it is highly efficient with thermal regulation. Most types are mold-resistant, flame-resistant, insect-resistant, and, most importantly, completely safe.

The Snoqualmie Pass, WA homeowners’ guide to insulation services

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