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Find Foundation, basement or crawlspace waterproofing / encapsulation pros in Renton

Avatar for Groundworks
Groundworks
4.6(
247
)

Serving Renton, WA and surrounding areas

Approved (Corporate)

In business since 1995

Free estimates

Emergency services offered

"They made my cracked driveway look like new. With the stabilizing they did, itâ ll last another 100 years! Very happy with my basement also!"
Foundation
Foundation
Foundation
Concrete
Concrete

+16

Response time2 days
156 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Insulation Co., LLC - Removal & Clean Outs
Insulation Co., LLC - Removal & Clean Outs
4.9(
206
)

Serving Renton, 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."
1
2
3
1
2

+46

Response time5 hrs
Recommended by51%of homeowners
Avatar for TerraFirma Foundation Systems
TerraFirma Foundation Systems
4.5(
67
)

Serving Renton, WA and surrounding areas

Approved

In business since 2005

Free estimates

Warranties offered

"Had huge foundation problems at a project of mine on the waterfront. We used terrafirma to both waterproof the entire basement AND lift the foundation. 10/10 would recommend. extremely communicative, very knowledgeable, and even brought a crew in from Oregon to help us stay on schedule. Oscar and jorge got the job done extremely quickly and Seth was fantastic as my project manager. "
A System Design Specialist helping a homeowner
Encapsulating a crawl space
Fleet of vehicles in our Portland, Oregon locatio
Loading up our truck for a piering job
Loading up a truck for a waterproofing job

+33

Response time40 mins
Response rate98%
100 neighbors recently requested a quote
Avatar for Wu Construction
Wu Construction
4.8(
186
)

Serving Renton, WA and surrounding areas

Approved

In business since 1983

Free estimates

Emergency services offered

"Wu Construction did an excellent job for us. Greg estimated what work needed to be done and we scheduled it as quickly as possible. The crew was on-time, very efficient and did a really nice job keeping things as clean as possible, which is no easy task when repairs are done to a wet & muddy foundation area. A full interior perimeter drainage and sump pump system was installed to eliminate standing water in the crawl space. The crew also removed all old floor insulation and installed new R-30 insulation. The crawl space was completely cleaned up and a new vapor barrier was installed. Everything was completed as agreed upon - all at a very fair & reasonable price. The crew even installed a permanent access ladder to the area so it would be easier to get into the crawl space area. I'd highly recommend Wu Construction for any drainage or foundation work needed to your home or business. Greg, the Estimator/Scheduler and Thomas Wang, the Construction Manager were a pleasure to work with. They kept us up-to-date on everything and were true to their word. I look forward to working with them again, as needed."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+11

Response time4 hrs
25 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Andy Construction LLC
Andy Construction LLC
5.0(
21
)

Serving Renton, WA and surrounding areas

Approved

In business since 2011

Free estimates

Warranties offered

"Outstanding work and value. Andy was quick to respond and came out the next day to assess what we needed to do to improve the drainage in our crawlspace. The home is built on a sloped lot. Andy suggested a full perimeter drain install around the foundation. The work also included complete replacement of the vapor barrier. All work was performed efficiently and Andy backed it up with a lifetime warranty. I couldn't be happier with the end result and would highly recommend Andy and his crew."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Response time7 hrs
1 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for UpHouse	 LLC
UpHouse LLC
5.0(
34
)

Serving Renton, WA and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"From my very first phone call, I felt I had found the perfect company to do the job that needed to be done, and I was right. Nikita, the company owner, communicated with me all along the way, so I knew what to expect. Everything was done so professionally from the detailed work contract, the promptness and reliability of the workers, and their special skills in the work that was done. I had the utmost confidence from beginning to end which was very valuable to me because of the urgency and type of work that needed to be done. I live in a manufactured home and my roof/ceilings in two rooms were sagging, and on the verge of possible collapse. Complete truss repair had to be done, and it needed skilled workers to do the job, and do it right. Vytali and Sergey are extraordinary at what they do, and now I have a piece of mind knowing I will never have to worry about those rooms again. I most definitely would use them again, no doubt, and am going to recommend them to friends, family, and neighbors that are looking to have work done. UPHOUSE, LLC is outstanding, and for such a dire situation that I had, they made it as easy as possible, and by far, the best experience I have had with a contractor, ever."
Redmond Front Porch
Redmond Front Porch
Before
After 1
After 2

+65

Response time9 hrs
Response rate97%
31 neighbors recently requested a quote
Avatar for Diversified Crawlspace Servs
Diversified Crawlspace Servs
4.7(
15
)

Serving Renton, WA and surrounding areas

Approved

In business since 1992

Free estimates

Emergency services offered

"We had a foot of water in our crawl space after the snow and 6 in. of rain from the December 2021 storms. I had called several companies to come out to take a look and give quotes. Ethan from diversified was the 3rd quote we received. Ethan explained the issue, explained what they would do to remedy it, and answered all my questions. He sent me the quote which was very resonable. BE SURE TO GET SEVERAL QUOTES. ONE COMPANY QUOTED US DOUBLE OF WHAT WE PAID DIVERSIFIED. They were able to get a team out two days later. The team was on time, professional, and did really good work. We ended up needing a sump pump due to ground water coming up. They applied a mold application and completed the work in a day. I highly recommend these guys and did my research prior to having them do the work. I am very impressed and happy we chose them."
crawlspace drainage
crawlspace drainage
crawlspace drainage
crawlspace drainage
crawlspace drainage

+18

9 neighbors recently requested a quote
Recommended by60%of homeowners
Avatar for Iconiq Construction, LLC
Iconiq Construction, LLC
5.0(
18
)

Serving Renton, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Offers commercial services

"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!"
kitchen remodel
Kitchen remodel
addition project
bathroom remodel
bathroom remodel

+2

Response time1 day
Response rate94%
3 neighbors recently requested a quote
Avatar for Urban Drainage & Masonry, LLC
Urban Drainage & Masonry, LLC
5.0(
5
)

Serving Renton, WA and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"Urban Drainage & Masonry replace the chimney on my house. They did an excellent job. They arrived on time. Finished in one day and cleaned up when the job was completed. They were also very professional and respectful. I would highly recommend them."
Outdoor works
Outdoor works
Outdoor works
Outdoor works
Outdoor works

+3

Avatar for Iron Earth Construction LLC
Iron Earth Construction LLC
5.0(
4
)

Serving Renton, WA and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

"They quickly assessed the situation, gave a reasonable quote, and were very proficient and professional. My condo unit was under contract and a water leak caused by another unit needed to be repaired asap and they did it. Also kept me well informed."
Before
During rooftop build
Rooftop Deck during
AFter
Installation of Euro Fencing

+43

Response time3 days
4 neighbors recently requested a quote
Recommended by75%of homeowners
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FAQs for foundation, basement or crawlspace waterproofing / encapsulation projects in Renton, WA

The most affordable way to waterproof your basement is with interior methods like waterproof paint, costing between $1 and $8 per square foot, or silicate concrete sealers priced at $4 to $6 per square foot. However, these solutions are only suitable for certain issues. If your basement moisture is due to more serious problems like a cracked foundation, you'll need more extensive (and costly) repairs.

Absolutely! Waterproofing your basement is a smart investment that can increase your home's value. By keeping your basement dry and free of moisture problems, you protect your home's structural integrity and make it more appealing to potential buyers. Plus, taking proactive measures now can prevent costly water damage repairs down the line.

The time required to waterproof a basement depends on the selected method. Some approaches to interior waterproofing, like paint or sealant, can be completed within a day. Installing new drains or weeping tiles will need at least two to three days of labor. Any forms of exterior waterproofing that require you to excavate land will require an additional three days of work to prepare the ground.

Yes, basement waterproofing can significantly increase your home's value. A dry, leak-free basement is a strong selling point for potential buyers, enhancing your property's desirability and market price. Investing in professional waterproofing not only protects your home's structural integrity but also ensures a healthier living environment by preventing mold and mildew growth.

Waterproofing both the interior and exterior of your basement offers the best protection against moisture. Exterior waterproofing stops water from penetrating your foundation, while interior methods manage any moisture that does enter. If you must choose one, exterior waterproofing is generally more effective, as it prevents water from reaching your home's interior in the first place.

The Renton, WA homeowners’ guide to foundation, basement or crawlspace waterproofing / encapsulations

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