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Overview
About this business
Gravity Waterproofing and Drainage is a waterproofing and drainage business serving Seattle homes and businesses. Gravity Waterproofing and Drainage specializes in basement waterproofing, crawl space encapsulation, drainage system installation, and sump pump solutions to protect properties from water damage. With over 15 years of experience, Gravity Waterproofing and Drainage offers a comprehensive process including free consultation and inspection, customized solution design, and professional installation. The business is licensed and certified for all repairs and also provides concrete and asphalt cutting and repairs as part of its services.
Waterproofing Service
Services
Services and categories listed for this business.
Basement WaterproofingCrawl Space EncapsulationDrainage Systems InstallationSump Pump SolutionsConcrete Cutting and RepairsAsphalt Cutting and RepairsCamera Scoping
Fernando is extremely knowledgeable and his team did fantastic work for us. What started as a blocked downspout turned into a significantly more complicated project once our family learned that our home never had any appropriate drainage installed for storm runoff! A disappointing thing to learn during weeks of heavy rain and flooding.
Fernando was a very clear and patient communicator every step of the way as we evaluated how to best understand and manage our options. In the end we came up with a stormwater drainage and retention solution that we’re very happy with, which was executed extremely well at a very competitive price. Even in nast...Fernando is extremely knowledgeable and his team did fantastic work for us. What started as a blocked downspout turned into a significantly more complicated project once our family learned that our home never had any appropriate drainage installed for storm runoff! A disappointing thing to learn during weeks of heavy rain and flooding.
Fernando was a very clear and patient communicator every step of the way as we evaluated how to best understand and manage our options. In the end we came up with a stormwater drainage and retention solution that we’re very happy with, which was executed extremely well at a very competitive price. Even in nasty December Seattle weather with a whole front yard to dig up, Fernando’s team completed their work within 48 hours of arriving and breaking ground. We’re very pleased and highly recommend!
C
Colleen Kinerk
Oct 18, 2025
★★★★★5.0
Fernando and his crew were fantastic - transparent, hardworking, and professional. Everything was explained in simple terms, they showed up when they said they would, and they even let us shave off a big chunk of the bill by letting us dig most of what needed digging out ourselves.
I got another quote from a large company. Slick presentation, totally different vibe, and they wanted to do something different that would have been more invasive, more expensive, and didn't really make sense to me. I'm glad I trusted my gut and went with Gravity.
I fully recommend these guys!
R
Robert Masson
Dec 18, 2025
★★★★★5.0
I really enjoyed working with Fernando and crew.
I had an annoying situation where the builder had installed multiple pumps outdoors to a catch basin to get pumped to the sewer by yet another pump. When that last pump failed last year all hell broke loose and my basement flooded. I contacted Fernando to figure out a better system and I felt really on the same page with him with the solution.
He was responsive with my questions and his crew was really prompt and hardworking and did a great job putting my backyard back as they found out (removing and carefully reinstalling pavers for example). I've been happy with the results and the piece of...I really enjoyed working with Fernando and crew.
I had an annoying situation where the builder had installed multiple pumps outdoors to a catch basin to get pumped to the sewer by yet another pump. When that last pump failed last year all hell broke loose and my basement flooded. I contacted Fernando to figure out a better system and I felt really on the same page with him with the solution.
He was responsive with my questions and his crew was really prompt and hardworking and did a great job putting my backyard back as they found out (removing and carefully reinstalling pavers for example). I've been happy with the results and the piece of mind of now having a sensible drainage solution.
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