Get matched with top basement waterproofing pros in Sultan, WA

Enter your zip and get matched with up to 5 pros

Need a pro for your basement waterproofing project in Sultan, WA?

Select your specific project to find the pro for you.

TRUSTED BY SULTAN, WA HOMEOWNERS

4.7
Average homeowner rating
20
Verified basement waterproofing services reviews

Verified Reviews for Basement Waterproofing pros in Sultan, WA

*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

Reviewed in March 2025
Came to the house and walked through my semi finished basement and we discussed the scope of the project and and he came up with ideas about how to provide proper egress for basements and we went over finishes and options for fixtures. Very detailed estimate and schedule was discussed so there...
WJPJR2, LLC
Request a quote
Reviewed in February 2022
Our basement had water damage from a sump pump failure. Custom Pro came out right away to begin the mitigation. Max was friendly, professional and clearly explained the process. He salvaged the carpet and did minimal cutting out of drywall. Arkady and Vitaliy answered all of my questions and...
Custom Pro Restoration, Inc.
Request a quote
Reviewed in May 2019
Jeff and his crew game me a home. I recently moved to Washington from Minnesota and was living in a rental. Jeff remodeled a daylight basement in my son's home for me, he was creative, kind, listened to my ideas and even added some extra touches that made the remodel special. All I can say is...
Simmons Construction
Request a quote
Reviewed in May 2019
We moved into a new home where a deck was built by the builder on our second floor above our concrete patio. On top of this, the builder did NOT frame above the deck, so in the rainy months, we had no outside space since water would go right through the deck to our patio below. I contacted a...
AA Defined Exteriors
Request a quote
Reviewed in July 2017
Though a bit pricey I was very pleased with the results. The new pump doesn't rattle my plumbing when it goes off and everything now drains as it should without backing up into my basement. Have recommended Kirk Thompsen to my friends.
South West Plumbing, Heating, Air, & Electric
Request a quote
Reviewed in December 2016
Was very satisfied with the prompt professional service, I would recommend waterproof windshields to my friends and family.
Rock Hard Windshields
Request a quote
Reviewed in June 2016
Yesterday We had sewage backing up into the basement bath through toilet and shower. When I called Roto-Rooter I was advised that before they come out we should make sure it is not a septic tank issue. When I checked, the tank was full. I was able to get it pumped out this morning. The sewage...
Roto-Rooter Plumbing & Water Cleanup
Request a quote
Reviewed in September 2015
Paul responded to our inquiry and showed up right on time to review our basement flooding situation. We had some water in the basement during a couple of recent downpours. Paul was very easy to work with and practical in quick suggestions, giving us some no-cost and low-cost options. He...
Allied Waterproofing & Drainage, Inc.
Request a quote
Reviewed in December 2014
I had had an issue with my basement smelling of mold and since I was trying to sell my house I knew this was going to be a big issue for some buyers. A "mold expert" had visited the house and told me I needed to dig an 8foot deep trench along most of my back wall which would have cost probably...
Wu Construction
Request a quote
Reviewed in November 2013
My wife and I purchased a mid sixties daylight rambler and were in the process of doing a very extensive remodel. As part of the remodel we had to replace all of the plumbing, including the drain lines under the basement concrete slab. We were moving the septic outfall to the opposite side of...
Go Long Plumbing LLC
Request a quote

Find Basement waterproofing pros in Sultan

John's Waterproofing Co.

4.2(

)

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."

Response time11 hrs

Response rate94%

41 neighbors recently requested a quote

Request Quote

Insulation Co., LLC - Removal & Clean Outs

4.9(

226

)

Serving Sultan, 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 ."

+46

Response time5 hrs

Recommended by49%of homeowners

Request Quote

Andy Construction LLC

4.9(

)

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"

Response time8 hrs

2 neighbors recently requested a quote

Recommended by95%of homeowners

Request Quote

Near Me Roofing Company

5.0(

)

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."

Response time4 days

Recommended by80%of homeowners

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

Response time10 mins

Response rate100%

39 neighbors recently requested a quote

Request Quote

UNIVERSAL LANDSCAPE CORP

4.8(

)

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."

Response time1 day

Response rate100%

1 neighbors recently requested a quote

Request Quote

Iconiq Construction, LLC

4.9(

)

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!"

Response time1 day

Response rate94%

5 neighbors recently requested a quote

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

57 neighbors recently requested a quote

Recommended by64%of homeowners

Request Quote

Harts Plumbers, Electricians, & HVAC Technicians

4.6(

1,228

)

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"

Response time50 mins

Response rate100%

21 neighbors recently requested a quote

Request Quote

SeaTown Electric Heating and Air

4.7(

1,637

)

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

Response time1 day

Recommended by93%of homeowners

Request Quote

...

Showing 1-10 of 82

Basement Waterproofing questions, answered by experts

There are several small, inexpensive upgrades you can make to upgrade your basement. Although you still need to adhere to building codes and obtain permits when necessary, you can complete small but mighty tasks like painting the masonry walls and installing entertainment devices to make the space more usable.

Sandbags are the most common and efficient way to create a flood barrier at home. Some local authorities pass them around to homes before the risk of a flood. Otherwise, you can use flood-proof house materials, like burlap or woven plastic bags, to make sandbags and fill them with sand or cat litter. Make sure that when you stack them, they’re tightly laid on top of each other, creating the effect of a firm wall against accumulating water.

Having a trusted crawl space contractor is the key to great encapsulation. If you're not sure how to hire a crawl space pro, begin by asking your neighbors for referrals. Homes in your neighborhood will often have a similar foundation to your house, and personal recommendations are one of the best ways to find a contractor. Additionally, double-check that the contractor has experience with encapsulation as well as proof of their license and insurance.

The difficulty of adding a basement to an existing house can vary depending on the house’s location, the size of the basement, and the type and condition of the existing foundation. Adding a basement is a job best handled by the pros, so you’ll need to enlist professional help for this project.

The least expensive basement waterproofing methods include grading soil away from your home, installing downspout extenders on your gutter system, and applying a waterproof paint on the interior of the foundation walls. Installing a French drain is a relatively inexpensive method if you do the work yourself, although it’s labor-intensive and can be challenging to install properly.

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.

See all articles

Scott Dylan Westerlund
•
Oct 24, 2025Oct 24, 2025
Basement Waterproofing Cost in Seattle [2026 Data]
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.
Angi
•
Jun 10, 2026Jun 10, 2026
How Much Does Basement Remodel Cost in Seattle, WA? [2026 Data]
Find out the average basement remodel cost in Seattle, WA. Learn what you can expect to pay for local basement finishing services and plan your budget today.
Lyle Hendriks
•
Jul 8, 2026Jul 8, 2026
How Much Does It Cost to Finish a Basement in Seattle, WA? [2026 Data]
An unfinished basement has a lot of potential. So, how much does it cost to finish a basement in Seattle, WA? Read on for all cost factors.
Dan Simms
•
Jul 8, 2026Jul 8, 2026
How to Waterproof a Basement Like a Pro
Dealing with a damp basement? Follow these steps for DIY basement waterproofing to keep water and moisture out and boost your home’s energy efficiency.
Dan Simms
•
Jul 9, 2026Jul 9, 2026
What Is Basement Waterproofing and How Does It Work?
Struggling with a damp basement? Learn about basement waterproofing and how these tips can help keep your basement safe from the elements.
Deirdre Sullivan
•
Jul 20, 2026Jul 20, 2026
How to Keep Your Basement Dry and Get Rid of Moisture
Can’t seem to get rid of the moisture and mold in your basement? Learn why basements tend to hold moisture and how to get rid of moisture in the basement.