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    Performance Insulation

    3.1 (8 reviews)
    Closed 7:30 am - 4:00 pm

    Services - Performance Insulation

    Insulation installation

    Performance Insulation Insulation Installation Photos

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    Insulation Co - Crawl Space & Attic Cleaning

    Insulation Co - Crawl Space & Attic Cleaning

    (19 reviews)

    Phinney Ridge, Greenwood

    My house was due for a crawlspace and attic cleanout. I reached out to several contractors and got…read morequotes from at least 5 different companies. Insulation Co gave me the best price out of all. The owner, Jo, was very knowledgable and easy to talk to. He was always willing to jump on the phone to answer any questions, which I appreciated a lot. My house was built prior to 1989 so I received a nice PSE rebate for the work. On the day of, Jo's crew were quick and efficient and provided Before and After photos. They removed my old vapor barrier and insulation and replaced with new one, added new dryer vent duct and flapper, and added new roof vents for all my bathroom fans, and much more. I was able to ask them questions during and provided water and snacks to them for their hard work. The crew respected my home and cleaned up after themselves before leaving. After the work was completed, I thanked Jo for making this all possible and being easy to work with. We went over some of the After pictures together over the phone to help me learn about everything and ask additional questions. They even sent a crewmember to come back for a 2-week follow-up on the work to make sure everything still looks good. I would recommend Jo and the team at Insulation Co to my friends and family for attic and crawlspace cleanout services again.

    I highly recommend Isulation Co. We had another contractor remediate mold in our attic, so I…read morerequested bids from 3 companies to install new insulation. Jo responded almost immediately with a bid based on the dimensions of our attic (he consulted the King County Parcel Viewer site to determine them). The other companies scheduled inspections. These were great for my ego: apparently I am very fit for my age, have excellent taste, and I'm very nice, so they offered me 'special discounts' . However, when I compared the bids for equivalent services, Insulation Co was significantly less expensive. No 'special discount' required; just straightforward pricing. The crew arrived on time, were careful to protect our property, and did excellent work. They took photos of their work and reviewed them with me. We had an issue with a switch for our bathroom fan that I mistakenly suspected was related to the installation. Jo responded immediately when I informed him of my suspicion and had someone come out the next day to troubleshoot it. Great service. Great value. Honest.

    Sound Crawls - Sound Crawls Box Truck

    Sound Crawls

    (8 reviews)

    Our house had a moisture problem from seepage hidden underneath, and of course then we found the…read moremold. UGH! Anyways, Sound Crawls was recommended to us. They basically inherited the business and experience from Clean Crawls (which was a big name contractor around King and Snohomish years ago.) We met 2 people from Patrick's crew, they were polite, hardworking, and super chill. The crew always showed up on time -- which is saying something because I-5 can be so unpredictable. Pat kept me in the loop the whole time with updates and photos of the damage. We're first-time homeowners and Pat took the time to explain things to us. Gave us tips etc. Straight-up, no BS or NO upsells! The work they did for us was top-tier. I am a "perfectionist" and I was happy with how everything turned out. If you see your home as an investment (because it is), Pat and his crew should be your go-to. The best part is they're honest. None of that, "Oh, we didn't include this in the original quote because we didn't see X, Y, Z coming." The guys on the crews been around for 15 YEARS and pretty much know what's probably going on beneath the surface before they even start. They handle all sorts of things like crawl space work, drainage, insulation, vapor barriers--the works. If you got a house problem, they got a solution. ** One thing to note: they are super hands-on and always busy, so if you call and don't get through, give it another shot. I think my wife said she called them 2-3 times because the crew's always on the road. **

    What a great business to work with. Wonderful to have NW Sound crawls to provide the paper work for…read moremy PSE rebate. Provided a very clean and well organized clean out of my crawl space making a tunnel to my front door to my crawl space so insulation would not go everywhere while removing. Promptly, started at 8 AM and left at 5 PM. With no trail left behind. Sent Video of before and after where my crawl space was insulated tightly down. All pipes were foamed so no mice can come back. They place traps to periodically come back to make sure it remains sealed. 253-315-0172

    Attic Star - PSE Rebate Program | Save Big Today

    Attic Star

    (23 reviews)

    Attic had been ignored for years. It was one of those places nobody really thinks about until…read moresomething feels off in the house. Lately the upstairs rooms always felt dusty and the temperature kept changing a lot, cold at night and warm during the day. Someone suggested checking the attic and once it was opened it was pretty obvious the insulation was very old and the space needed a real cleaning. Team came out and took their time looking around first. They explained what they were seeing and why the old insulation was not really doing its job anymore. There was a lot of buildup, old insulation, dust, and just years of stuff sitting in the attic. Once they started removing everything it was kind of surprising how much came out. Whole attic was cleaned out properly before anything new went in. They also pointed out a few small openings where air was getting in and sealed those while they were up there. After that the new insulation was installed and the difference started to show pretty quickly. Upstairs already feels more comfortable and the house keeps the temperature much better. Air feels cleaner too, which was something that was noticed almost right away. One thing that stood out was how careful they were during the process. They covered areas they were walking through and cleaned everything before leaving so there was no mess left behind. Attic cleaning and insulation is probably one of those things people forget about until it becomes a problem. Looking back it probably should have been done earlier, but really glad it finally got taken care of. House feels better overall and it just gives peace of mind knowing the attic is clean and properly insulated now. Really good experience from start to finish.

    Had someone come out to look at potential mold in the attic. He was the third person from a mold…read morecompany to come out. After receiving recommendations from all three companies, I can say I really appreciate his knowledge and honesty.

    Northwest Crawl Space Services

    Northwest Crawl Space Services

    (8 reviews)

    I hired NW Crawlspace to redo the insulation under my house, including duct sealing and rodent…read moreexclusion. They were friendly and professional, but a follow up inspection by another company later revealed that the work was substandard, and things that I'd paid for had not been done. After several attempts NW Crawlspace were unable to fix their mistakes, and communication broke down. I paid another company to come in and fix things, and the owner of NW Crawlspace reimbursed my costs and gave what I believe to be a sincere apology.

    We needed to clean up our crawlspace because we were having a rat problem down there. I had a few…read morecompanies come over to take a look and give an estimate, but we decided on Northwest Crawl Space for these reasons: 1) Matan came and was very knowledgeable and professional. I also found that he was the only one who wasn't "sales"-y in his approach. 2) Financing was an option with 0% interest if paying off in 18 months. 3) Was the most affordable out of all the bids. Don't get me wrong, the pricing was comparable, but this company won by a small margin in costs. 4) They provided the removal of items and trashing it into the costs. A particular company was going to charge an insane additional amount to do this. 5) The workers who came to do the work were all friendly, professional, clean and quick. They did the job of about 1500 sq. ft. of crawlspace in one day. 6) When we inspected the finished product the next day, we were happy and their work exceeded our expectations! No more crazy smell coming from the vents and everything down there has been sealed and re-insulated, so no vermin should be coming in. 7) Plus, they have a 1 year "Rodent protection plan" for someone to come every 3 months to monitor the rodent traps to ensure us that the rats are not coming in. So by these reasons, I highly recommend this company! I will update in a few months or a year to make sure we are completely "rodent-free" down there. Excellent job!

    Performance Insulation - insulationinstallation - Updated May 2026

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