Top-rated basement waterproofing pros.

Get matched with top basement waterproofing pros in Sultan, WA

Enter your zip and get matched with up to 5 pros

TRUSTED BY SULTAN, WA HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon20
    Verified basement waterproofing services reviews

Find Basement waterproofing pros in Sultan

Avatar for Insulation Co., LLC - Removal & Clean Outs
Insulation Co., LLC - Removal & Clean Outs
4.9(
226
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

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."
1
2
3
1
2

+46

Response time5 hrs
Recommended by49%of homeowners
Avatar for Wu Construction
Wu Construction
4.6(
238
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

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."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+11

Response time10 mins
Response rate100%
34 neighbors recently requested a quote
Avatar for Iconiq Construction, LLC
Iconiq Construction, LLC
4.9(
31
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

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

+2

Response time1 day
Response rate94%
9 neighbors recently requested a quote
Avatar for SeaTown Electric Heating and Air
SeaTown Electric Heating and Air
4.7(
1,638
)
Basement Drainage Channels - Install

Serving Sultan, WA and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"4 hyberheat mistubishi mini splits (2 of them extra powerful) and a great outdoor unit $30k 4 years free financing Far better deal than Blue Flame and others and no sleezy salesman tactics. Service was good too. A broken seal meant water was getting into the basement. They came in 18 minutes and fixed is super fast!"
Seattle's Rewire Specialists
Generator
Tesla Chargers
Knob and Tube Removal
Ductless Install

+26

Response time1 day
12 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Mad Pipers Plumbing
Mad Pipers Plumbing
4.7(
32
)
Basement Drainage Channels - Install

Serving Sultan, WA and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"They did an excellent job and everything was done on time and with exactness. They work very professionally but they also had fun as they worked. The final price ended up being right on with what the estimated price was. They provided all the materials and they cleaned up when they were finished and didn’t leave a mess behind for us to have to clean up. They listened to us and to what our desires were and then they explained the different options that we had. They were very respectful not only to us but to our property. They showed up on time when they said they would be here and the project was completed when they estimated it would be done. We would definitely recommend them for any plumbing job you have, we will call them for any future needs we have."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

Recommended by85%of homeowners
Avatar for Iron Earth Construction LLC
Iron Earth Construction LLC
5.0(
4
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Sultan, 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
39 neighbors recently requested a quote
Recommended by75%of homeowners
...
Showing 1-10 of 81
Basement Waterproofing questions, answered by experts

The cost of basement waterproofing is $4,950 for the average homeowner. However, you could end up paying between $600 and $14,000, depending on factors like basement size, waterproofing method, and the region you live in. 

If you live in an area with heavy rainfall, you might be paying more for waterproofing than if you lived somewhere drier since waterproofing contractors would be in high demand. Likewise, a 500-foot basement costs between $2,500 and $5,000 to waterproof, but that price rises significantly for a larger basement.

Yes, it’s worth it to repair a crawl space foundation, even if the issue seems relatively minor. Foundation problems often get worse and more expensive to fix if you leave them untreated. Additionally, your entire home, from the framing and flooring to the roof system, relies on the foundation for even and level support. Issues with your foundation will almost always manifest as problems in and above your living space, so it’s important to find a solution.

Yes, you can enclose your crawl space. Enclosing your crawl space can promote energy efficiency and reduce the risks of pests and mold by limiting factors like humidity. It can also reduce heat loss, which is why doing so for the winter can make your home more comfortable.

Water can seep into porous materials like wood beams, floor joists, and roof rafters within minutes, but they’ll need to see prolonged exposure before you have structural damage. Mold can start growing within 24 hours, and mold can eat away at the structural components over time. Wood rot is more of a concern, though. Wet and dry rot are fungal infections that set in in moist conditions and rapidly deteriorate wood, causing major structural damage within just a few months in some cases.

Yes, it is generally unhealthy and can be dangerous to live in a damp basement. The damp air can negatively affect your breathing and lungs, and the moisture promotes mold growth and pest infestations. Inhaling mold spores or waste particles from insects and rodents attracted to the moisture can be hazardous. This damp, moldy air can also circulate into your main living area. It is crucial to resolve any moisture problems and implement preventative measures before using your basement as a living space.

The Sultan, WA homeowners’ guide to basement waterproofing services

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