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

Avatar for John's Waterproofing Co.
John's Waterproofing Co.
4.9(
54
)

Serving Bellevue, WA and surrounding areas

Approved

In business since 1974

Free estimates

Warranties offered

"John's Waterproofing was the only company to respond. They were prompt, the person reaponding was knowledgeable and explained things in every day language. We will be using this company again."
New Home Encapsulation
SilverGlo Insulation
CleanSpace
SaniDry Dehumidifier
Puddling in Basement

+7

Response time10 hrs
47 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Insulation Co., LLC - Removal & Clean Outs
Insulation Co., LLC - Removal & Clean Outs
4.9(
204
)

Serving Bellevue, WA and surrounding areas

Approved

In business since 2009

Free estimates

Warranties offered

"Removed old fiberglass insulation that at one time was rodent infested. Removed old plastic ground cover sheeting. Installed new ground cover black plastic sheeting and new fiberglass insulation. This was in the basement crawl space in my 9-unit apartment building. Very satisfied with the work - they were very responsive to some follow up work - would definitely recommend ."
1
2
3
1
2

+46

Response time5 hrs
Recommended by52%of homeowners
Avatar for Wu Construction
Wu Construction
4.8(
186
)

Serving Bellevue, WA and surrounding areas

Approved

In business since 1983

Free estimates

Emergency services offered

"4.5 stars overall for removal of concrete slab/stairs and pouring of new 10' long, 4 foot deep foundation wall. Result was excellent. Crew was considerate and trustworthy. It was expensive for me, but cheaper than the other bids I got. Communication was not great over email. There were a number of times I wasn’t replied to at all or got a partial response. I let them know and they said they’ll work on that. I recommend communicating via text instead which worked much better."
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 UpHouse	 LLC
UpHouse LLC
5.0(
34
)

Serving Bellevue, WA and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"Very easy to work with and very professional. When he gave us the quote on our deck, he asked what we wanted, came up with a solution and did not try to sell us repairs that we were not asking for. Did some extra touch ups that were much appreciated. Reasonable cost. I will definitely call him back in the future for other projects. I have had some very bad construction companies in the past so I was grateful to find one I feel I can trust and did an excellent job. I definitely would recommend Up house. Thank you Mikita."
Redmond Front Porch
Redmond Front Porch
Before
After 1
After 2

+65

Response time9 hrs
Response rate97%
25 neighbors recently requested a quote
Avatar for Andy Construction LLC
Andy Construction LLC
5.0(
21
)

Serving Bellevue, WA and surrounding areas

Approved

In business since 2011

Free estimates

Warranties offered

"I have a 1906 cottage in N Seattle, with an old porous foundation. Water came into the basement for the first time in 20 years. Another contractor bid the job at $12,000 after 3 site visits and almost a month. Andy came out to the house the same day I talked to him, and estimated the same job at half that price. He followed up with questions, asked about making another visit, came out again and saw that the drainpipe was disconnected at the top of the area being flooded. 75% of the roof's water was pooling against the house. He found a ladder and fixed it and isn't charging me a dime. So, no French drain, no Delta drain, no foundation treatment, no 50' of trenching, no $$$. Andy was timely, reliable, did what he said, and knows his stuff. He was a great communicator, and I feel so so lucky to have found him."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Response time7 hrs
1 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Iconiq Construction, LLC
Iconiq Construction, LLC
5.0(
18
)

Serving Bellevue, 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 Diversified Crawlspace Servs
Diversified Crawlspace Servs
4.7(
15
)

Serving Bellevue, 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

8 neighbors recently requested a quote
Recommended by60%of homeowners
Avatar for Urban Drainage & Masonry, LLC
Urban Drainage & Masonry, LLC
5.0(
3
)

Serving Bellevue, WA and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"I hired Urban Drainage and Masonry to fix two issues with my paver driveway and sidewalk: troughs in front of the garage caused by years of vehicle traffic, and a large hump in the sidewalk that made approaching the front door difficult. The contractor identified excess water from roof runoff as the main cause and recommended installing a driveway drain, along with addressing moss buildup on the pavers. The crew worked quickly and efficiently installing the drain. The process freed up pavers that were reused to replace older, deteriorated ones, and they were able to square off parts of the original installation, improving the overall appearance of the sidewalk. They also provided helpful, no‑pressure suggestions for future projects. Overall, their work was professional, thoughtful, and effective, and I would gladly recommend them."
Outdoor works
Outdoor works
Outdoor works
Outdoor works
Outdoor works

+3

Avatar for WA MASONRY & WATERPROOFING LLC
WA MASONRY & WATERPROOFING LLC
2.3(
3
)

Serving Bellevue, WA and surrounding areas

Approved

Free estimates

Offers commercial services

"Had this company WA Masonry & Waterproofing come out and give me a full Shingle roof replacement, would highly recommend this team. They did an amazing job on my roof, loved how it turned out. Great communication throughout the complete project."
Chimney Work
Foundation Repair
Chimney Rebuild
Full Roof Installment
2 neighbors recently requested a quote
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Showing 1-10 of 203
FAQs for foundation, basement or crawlspace waterproofing / encapsulation projects in Bellevue, 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 Bellevue, 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.