Top-rated basement waterproofing pros.

Get matched with top basement waterproofing pros in Williams, OR

Enter your zip and get matched with up to 5 pros

Need a pro for your basement waterproofing project in Williams, OR?

Select your specific project to find the pro for you.

Verified Reviews for Basement Waterproofing pros in Williams, OR

*The Angi rating for Basement Waterproofing companies in Williams, OR 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 Williams, OR 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 May 11, 2026

Find Basement waterproofing pros in Williams

Avatar for TerraFirma
TerraFirma
4.0(
105
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Williams, OR and surrounding areas

Approved

Super Service Award Winner

In business since 2005

Free estimates

Emergency services offered

"Skyler and TerraFirma far exceeded our expectations. The injection process of the foam raised our cracked garage floor back to level. Skyler’s customer service was the best. I highly recommend TerraFirma and hope that you get Skyler as the person doing the work… you will not be disappointed!"
Crawl Space Encapsulation with TerraFirma
Basement Waterproofing with TerraFirma
Foundation Repair with TerraFirma
Concrete Lift and Repair with TerraFirma
Before - Basement Waterproofing in Eugene, OR

+33

Response time30 mins
69 neighbors recently requested a quote
Recommended by79%of homeowners
Request Quote
Avatar for Blake Excavation LLC
Blake Excavation LLC
5.0(
6
)
Basement Drainage Channels - Install

Serving Williams, OR and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

"Blake Excavation was recommended and we are ever so grateful! Our Septic Drainfield had failed after 42 years and we were in need of urgent help. Despite delays courtesy of an understaffed DEQ Jason kept us informed and was onsite the minute the permit was approved. The crew showed up on Friday and worked through the weekend to get us back online. They were courteous and caring and we are ever so grateful!"
Retaining Wall
Retaining Wall
Retaining Wall
Retaining Wall
Retaining Wall

+2

Response time2 days
Recommended by83%of homeowners
Request Quote
Avatar for Pacific Builders Tim Hogue
Pacific Builders Tim Hogue
3.7(
35
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Williams, OR and surrounding areas

Approved

In business since 1992

Free estimates

Emergency services offered

"This was a huge project! 2800 square feet of decking and patio. Great ideas to waterproof and carpet. Really nice young men working with Tim. I would hire again."
Coustom base board
Dewitt's project
Dewitt's project
Dewitt's project
stone fire place

+42

Response time7 hrs
Response rate85%
Recommended by92%of homeowners
Request Quote
Frank Millett Construction
3.8(
9
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Williams, OR and surrounding areas

Approved

In business since 1973

Free estimates

Offers commercial services

"Excellent. He was true to everything he said & went beyond! He helped carry 1/2 the bal.with no interest. Checked many times on his workers & worked on the project Ali hide his crew a few times A gentleman who is as trusting just as the old handshake & followed through. Highly reccomend!"
2 neighbors recently requested a quote
Recommended by100%of homeowners
Request Quote
Avatar for TerraFirma Foundation Systems
TerraFirma Foundation Systems
5.0(
10
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Williams, OR and surrounding areas

In business since 2005

Free estimates

Warranties offered

"Being on the coast and close to wetlands, there is a ton of water accumulation in my crawlspace. Terra Firma had a ton of work to dig out the drainage trenches but they did a wonderful job! They had a large crew that tackled different projects to get it all done in 1 day. Everyone was professional and very friendly. I will definitely use them again for my continual foundation improvements."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+11

Response time7 hrs
Recommended by77%of homeowners
Request Quote
Avatar for Western Construction Systems, LLC
Western Construction Systems, LLC
3.5(
80
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Williams, OR and surrounding areas

In business since 1987

Free estimates

Emergency services offered

"Western Construction did a great job of inspecting our property, explaining how they would do the job and found things we were not aware of. Although they were not hired do the job for me, I would have hired them; they submitted a decent bid and were customer friendly."
Recommended by88%of homeowners
Request Quote
Avatar for JBC Group Solutions Inc
JBC Group Solutions Inc
4.0(
4
)
Basement Drainage Channels - Install

Serving Williams, OR and surrounding areas

In business since 2007

Emergency services offered

"I have been using them for 3 years for multiple projects and would not go to somebody else. They also built a cabin in the woods. It was built 10 miles from the road so it was like carrying all the stuff up the path. They also did the garage and remodeling of the house, mostly kitchen and a little bit of plumbing work in the bathroom. I am still using them and I would be using them for the next thing that will be coming up too."
Custom Staircases
Custom Exterior Restoration
Custom Bathrooms
Recommended by75%of homeowners
Request Quote
Avatar for Hampton Enterprise LLC
Hampton Enterprise LLC
3.7(
9
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Williams, OR and surrounding areas

In business since 1989

Free estimates

Emergency services offered

"They were good. They were pretty fast and came on time. My overall experience with them has been good."
Additional Photos
Additional Photos
Recommended by60%of homeowners
Request Quote
Showing 1-10 of 13
Basement Waterproofing questions, answered by experts

Crawl space foundation problems can stem from a few different issues, but the most common are moisture and water problems and soil instability. Moisture and water issues are often a result of poor drainage, which can lead to water intrusion and soil expansion and contraction, leaving your foundation under added stress. A few things can cause soil instability, including poor drainage, karst landscapes and resulting sinkholes, and poorly compacted soil during construction.

If foundation problems are not fixed, they will likely worsen over time, leading to more complex and expensive repairs. Neglecting a damaged foundation can cause a range of issues, including:

  • Structural Damage: Minor problems like small cracks can escalate into major structural issues. This can damage the house above the foundation and, in severe cases, lead to foundation walls caving in or a total collapse.

  • Water Damage and Pests: Moisture and water intrusion can cause flooding, mold growth, and pest infestations.

  • Health and Safety Risks: Mold can lead to poor indoor air quality and other health risks, while structural instability poses a significant safety hazard.

  • Reduced Home Efficiency: A compromised foundation can negatively impact your home's energy efficiency.

To avoid these escalating problems and costs, it's best to hire a foundation repair company to address any issues as soon as you become aware of them. The earlier problems are discovered and fixed, the lower the repair cost will likely be.

There are a few downsides to a wet room, the most important of which is the risk of mold growth from the moisture and humidity. Standard bathrooms can have the same issue, but wet rooms are more likely to experience problems because water is less carefully contained. You also have less privacy since the entire bathroom is open, and the room must include waterproofing, which makes wet rooms more expensive to install than regular bathrooms.

Crawl spaces are the more desirable option overall because they provide additional space for storage and utilities, but they are more expensive to install and maintain. Slab foundations are considered a better option in warmer climates where the depth of the frost line isn’t an issue because they’re more affordable, but crawl spaces are better in areas where the frost line is deep or where flooding can be an issue.

Yes, many repair services include reapplying waterproofing and UV-resistant coatings.

The Williams, OR 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