4.7 
20 *The Angi rating for Basement Waterproofing companies in Sultan, WA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Waterproofing needs.
*The HomeAdvisor rating for Basement Waterproofing companies in Sultan, WA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Waterproofing needs.
Last update on March 15, 2025
Serving Sultan, WA and surrounding areas
Approved
In business since 1974
Free estimates
Warranties offered
"Corey and David of John's Waterproofing Company took our project and had a commercial grade gas water heater installed and running in place of our old one the same day they received our call for service. Thank you John's Waterproofing."
+7
Serving Sultan, WA and surrounding areas
Approved
In business since 2009
Free estimates
Warranties offered
"I contacted a few companies for quotes and Insulation Co was local to Edmonds, so I engaged them. Jo provided a fast quote over email, which I found odd as the other guys made an effort to come out and view the job and obviously high pressure sell you.... The quote was inline and lower than other guys, so based on that and the great reviews they had, I went with it. Other companies had as many 1 star reviews as 5 star and that was a deal breaker. Jo has almost all 5 Star reviews...The team was able to schedule a time within a week and did all the work while we were out of town. I'm very happy with the results. Did a crawl space insulation, vapor barrier, all the AC duct work and even the adjoining wall to the basement, which I didn't expect. Were in and out in half a day, all cleaned up and professional. House floors are noticeably warmer. Highly recommend this local small business."
+46
Serving Sultan, WA and surrounding areas
Approved
In business since 2011
Free estimates
Warranties offered
"I called Andy after discovering a basement leak. Andy after a few photos immediately knew the source and with some phone guidance we were able to solve the problem. He even refused my offer to pay"
Serving Sultan, WA and surrounding areas
Approved
In business since 2012
Free estimates
Credit card accepted
"Excellent service and very thorough with explanation and getting the right. I researched many skylight installation companies and decided to hire Ari and Elijah. I will recommend my colleagues and friends and family. I will absolutely use this roofing company for any roof work on my house."
Serving Sultan, WA and surrounding areas
Approved
In business since 1983
Free estimates
Emergency services offered
"Greg and his team were wonderful to work with from the start. It's going to improve our house and our life to stop having water in the basement everytime it rains. We can finish our basement and actually use the space now! Thanks for being so easy to work with and delivering a quality drain system."
+11
Serving Sultan, WA and surrounding areas
Approved
In business since 2005
Free estimates
Credit card accepted
"This retaining wall was done during last April and it took a full week to complete. Even with some of the days having some rainy weather, the guys kept at it and did finish this wall well done. I had some weed prevent fabric put down on top of the back fill, and then I chose gravel which I like and have no grass to water and mow. So yes this project ended up with good function and looks, thanks."
+8
Serving Sultan, WA and surrounding areas
Approved
Super Service Award Winner
In business since 2023
Free estimates
Warranties offered
"Iconiq Construction Service did an amazing job finishing our basement. The team was professional, efficient, and detail-oriented. The results were outstanding, creating a functional and beautiful space. Highly recommend their services!"
+2
Serving Sultan, WA and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 2006
Free estimates
Emergency services offered
"Punctual and very communicative I am very happy how my project turned out! No more water in my basement!!"
+15
Serving Sultan, WA and surrounding areas
Approved
Super Service Award Winner
In business since 2013
Emergency services offered
Warranties offered
"Dylan is a phenomenal guy with exceptional customer service and all around pleasant young man. I would highly recommend him and Harts for any of your plumbing issues. Thanks so much"
Serving Sultan, WA and surrounding areas
Approved
In business since 2014
Free estimates
Emergency services offered
"Had wiring replaced throughout home. Great service with minimal drywall damage"
+26
From average costs to expert advice, get all the answers you need to get your job done.
Need to fix basement water problems or safeguard your home in Seattle, WA from damage in the future? Use this basement waterproofing cost guide to budget appropriately.
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