Great experience, responsive, and very smooth process from start to finish. Pedro stopped by to…read morequote insulation in my older attic as I wanted to bring it up to current R-49 value. He gave me a great price and available dates, the crew arrived on time and started right away. Once they were complete and cleaned up the area, they showed me before and after photos of the attic. Pedro followed up for payment and to confirm everything went well. You should add them to your bid list if getting multiple quotes.

Western Insulation Services in Renton is great! The crew was professional and courteous, they…read morearrived on time and ready to work. It was a small job to blow insulation in our garage ceiling; I was concerned about being left with a dusty garage, so I hung painter's plastic to contain any mess. Though it was probably a good idea (I can be a neat freak)-- the guys worked very methodically to control excessive dust and debris. They cleaned up when finished and left the space very clean for the kind of work being done. They charged a fair price and I would absolutely use them again if needed.

I thought they did a great job until I found out the broke pipes in my wall and caused major damage…read morein my airbnb. they refused to cover damages. do not recommend.

These guys are great. Came out within the week for my quote and the price seemed very reasonable in…read morecomparison to a couple other quotes I've gotten. They communicated well and did the job quickly and neatly. Very polite, personable, and professional! I would definitely recommend them to anyone needing upgrading or replacing of their insulation. I hired them for a crawl space job and they made me a nice little door for my crawl space to keep critters out. Looks great!!

Our crawl space was in a bad shape. Green Attic came in and did a fantastic job restoring it. The…read morecustomer service was excellent. The team that did the work were awesome. Highly recommend them.

I interviewed about a dozen insulation contractors before choosing Green Attic to replace my attic…read moreinsulation and do mold remediation and rodent-proofing. They gave me a good price (about middle of the price band), and didn't try to upsell me. One of the most important things with a job like this is to have someone who is knowledgeable and responsive, and Green Attic delivered: they worked up multiple quotes for me, responded promptly to all my emails, texts, and phone calls (thanks Kassandra!), the work crew arrived on time, and they sent a lot of before and after photos when the job was done. Clint really helped me out when a piece of the drywall ceiling failed due to unknown prior moisture damage, sending over one of their contractors the next day and covering half the cost of the fix. I'm very pleased, and highly recommend Green Attic.

Heartfelt thanks to Lior and his crew for their outstanding work. Finishing the entire project in…read moreonly two days was nothing short of a testament to genuine American efficiency. Our primary reason for choosing Northwest Crawl Space Services was their ability to provide a comprehensive, one‑stop crawl space solution. They offer the full spectrum of crawl space restoration services and can also install a sump pump system. We also used their high‑quality rodent prevention services as part of the project. Among the companies AI recommended to me, Northwest Crawl Space Services stood out with exceptionally strong customer reviews. I also browsed through some customer reviews, including a long, thoughtful one written by an older gentleman. He wrote, "Lior was our lead person for questions and he made it easy to understand, going over everything--I mean everything!" Lior is also the blogger who wrote the educational articles and the detailed, highly informative work logs on the company's website. And as luck would have it, the company assigned Lior to do our estimate. Now we can say the same thing: everything became easier because Lior stepped in with such calm, steadiness, and responsibility. On the day of the estimate, Lior told us they would protect the laundry room and the garage, and that they would do their best to complete the project to a high standard--he even said they would make our crawl space "beautiful." Our only expectation for the crawl space was basic functionality. It is technically part of the house, but the last time I went inside was thirteen years ago. This time, however, when I entered the crawl space to take photos, I had to admit that their attention to detail was truly impressive. I'm posting a few photos here--this is only a small portion of what they accomplished. The quality of the work far exceeded anything we had imagined. Considering the hours they spent in that low, dark, cold, and damp environment only deepened our respect for their perseverance. During those two days, even though the work was physically demanding, we could still feel that they were genuinely happy. This speaks both to their inherently positive mindset and to the healthy, supportive workplace culture within the company. The office staff were equally enthusiastic and provided the same high level of friendly, professional service. NWCSS is a company you can truly trust. A few days later, on a sunny afternoon, I went back into the crawl space. What I saw made me finally understand what "beautiful" truly meant. I sat there quietly, watching the interplay of light and shadow between the new floor insulation and the new vapor barriers, with the new air ducts weaving through the space in graceful lines. In that moment, the present felt eternal. Lior delivered on everything he said he would do. Highly recommend!

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.

Mo came to our house today and did a great job cleaning our ducts, sanitizing the ducts. He was a…read moretrue professional. We highly recommend him and the companies services.

We had insulation in the Attic replaced with new insulation in the crawl space our air ducts…read morecleaned. Aaron came and gave us an estimate after a throw check of our attic and crawl space. Aaron's attention to detail and explaining the whole process was incredible. The crew led by Luis was very professional and kept me aware of each step in the process. Eli in the front office was very helpful when we had to change a date. He was also very helpful and arranged payment through our bank. I will definitely use Environmental Solution again

Isaac and his team were incredible. He showed up when he said he would, quoted a reasonable price…read moreand then came back as promised to do the insulation removal in our crawl space. He and his team worked tirelessly and extracted over 50 bags of insulation. Throughout he kept our home spotless. Two weeks later he came back for the reinstallation of new insulation and vapor barrier (our delay - not his). Again he communicated clearly throughout the whole process and showed up exactly when he said he would with his crew ready to work. After another 10 hour day, the finished product was excellent and they took great care to keep everything clean. I am truly impressed with Isaac and his team. Very refreshing to work with professionals who do what they say they will and deliver an excellent result. I highly recommend Isaac and Valued Pro Solutions!

The owner is amazing guy! They transformed our disgusting…read morecrawl space to nice and clean. I love his communication and his job. I highly recommend him as master of insulation.

Phil, Troy and team are prompt and professional. They took care of my crawlspace which needed new…read moreHVAC rigid duct insulation, vapor barrier, air sealing and twining the existing insulation. They did a great job with reasonable price gave a thorough plan of execution, 5 year warranty and worked with me to address my concerns regarding cold air drafts in the living area. They are always willing to work with you and your requirements, so best to describe what you need and what are the expectations. For future jobs I will recommend they also ensure to give headsup to customers when they plan to come and budget for wiggle room in job completion estimate as there's always unexpected outcomes which will require additional time.