Top-rated basement waterproofing pros.

Best basement waterproofing pros near Beaverton, OR

Enter your zip and get matched with up to 5 pros

TRUSTED BY BEAVERTON, OR HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon106
    Verified basement waterproofing services reviews

Top-Rated Basement waterproofing pros in Beaverton - Updated Nov 2026

Avatar for Better Basements and Waterproofing
Better Basements and Waterproofing
5.0(
10
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Beaverton, OR and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

"Dylan Milroy went in and cleaned out the crawlspace put down plastic and dug a french drain and redirected all the downspouts so that the rain and we had now more water being drained. He is super easy to work honest he follows up to see if you are satisfied with his work.. I recommend him to everyone."
12mil vapor barrier
12mil vapor barrier
Standard Vapor Barrier
Exterior Drainage
Exterior Drainage

+3

Recommended by50%of homeowners
Avatar for Groundworks
Groundworks
4.6(
915
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Beaverton, OR and surrounding areas

Approved (Corporate)

In business since 2021

Free estimates

Warranties offered

Groundworks is the North America's leading and fastest-growing foundation repair and water management solutions provider. Groundworks is a vertically integrated company with its own manufacturing operations and a world-class software solution, allowing us to serve our customers more effectively. From the first phone call to the annual maintenance offered, our customers have peace of mind knowing we're there with one mission to repair, protect and improve their home. For state licenses visit Groundworks.com/licensing

Basement
Basement
Basement
Concrete
Concrete

+20

8 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for John's Waterproofing Co.
John's Waterproofing Co.
4.0(
72
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Beaverton, OR and surrounding areas

Approved (Corporate)

In business since 1974

Free estimates

Warranties offered

"Friends who know what our basement looked like before are flabbergasted. The information they send you after you contact them is super educational and everyone was prompt, polite, and professional. Wish we'd done this sooner."
Encapsulation System
Before Encapsulation
Before Interior Drain System
After Interior Drain System
Finished basement

+38

Response time6 hrs
105 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Pacific Waterproofing & Foundation Solutions, LLC
Pacific Waterproofing & Foundation Solutions, LLC
4.9(
8
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Beaverton, OR and surrounding areas

Approved

In business since 2012

Free estimates

Warranties offered

"Very impressed with Darren: his work ethic, thoroughness of the work, cleanliness of the job site when the job was finished. He arrived when he said he would and stopped by when he was done for the day to let me know he was leaving. I certainly would recommend Pacific Waterproofing, LLC."
Response time2 days
12 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for D & F Plumbing, Heating and Cooling
D & F Plumbing, Heating and Cooling
4.2(
514
)
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Beaverton, OR and surrounding areas

Approved (Corporate)

In business since 1927

Emergency services offered

Warranties offered

"Our shower was leaking into the basement. Azzi was able to come out the same day to diagnose the problem and schedule service. He was professional, friendly, tidy, and completed the substantial work in one day. He explained everything in terms we could understand. His work was excellent! We feel that we received quality and long-lasting solutions to our plumbing problems. We can't recommend D & F Plumbing enough. Ask for Azzi!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+18

2 neighbors recently requested a quote
Recommended by78%of homeowners
Avatar for 3 Mountains Plumbing
3 Mountains Plumbing
4.2(
653
)
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Beaverton, OR and surrounding areas

Approved

In business since 2000

Emergency services offered

Warranties offered

"The best part about this company for what I needed was that they warranty the foundation, which no other company did. They all were very nice as well. They were more expensive and where hard to get a hold of at times. I also asked the them To put in a check valve for irrigation. We decided on one location and then when it came time to install, I was asked by the lead plumber if it was ok to put it next to the water main. I said, if it s ok to, then I m fine with it. The city came to inspect and failed it because a check valve needs to be on property and not on a park way. They had to come back out, re-dig a hole, wait for the city to come back to re-inspect it then they had to come back and fill everything in. This dragged a the whole process out to over two weeks rather then 3-5 days."
The 3MP Team (Circa 2017)
Bill Kerrigan
Alex Grabbing a Photo
Rolling Through Lake Oswego
Random Patch Photo

+103

Response time1 day
341 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Legacy Plumbing and Excavation, LLC
Legacy Plumbing and Excavation, LLC
4.5(
86
)
Basement Drainage Channels - Install

Serving Beaverton, OR and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"James from Legacy Plumbing and Escavation was professional and friendly did an a awesome job in a timely manner in repairing a leaky shower in a home we had just purchased. Highly reccomend James and Legacy Plumbing and Escavation 🤙"
Sewer Repair
Excavation & Sewer
Response time9 hrs
Response rate95%
821 neighbors recently requested a quote
...
Showing 1-10 of 110
Basement Waterproofing FAQs, answered by experts

In Beaverton, unexpected costs can arise from the need for soil remediation due to clay content, additional sump pump installation, or upgrading existing drainage systems. Landscaping restoration after excavation is often overlooked. You may also encounter expenses for meeting updated building codes or utility adjustments. Weather-related delays, especially during the wet season, can increase labor time and require temporary moisture control measures.

Helpful?

For basement waterproofing in Beaverton, opt for exterior waterproofing membranes suited to clay soils, high-quality vapor barriers, and flexible polyurethane sealants for cracks. Installing a sump pump with battery backup is crucial due to frequent rain. Interior drainage channels and dehumidifiers help manage moisture. Choose materials rated for OR’s freeze-thaw cycles and ensure all supplies are compatible with local soil and groundwater conditions for long-term protection.

Helpful?

Be cautious of contractors in Beaverton who skip a thorough site inspection, provide only generic solutions, or push for quick decisions. Vague estimates lacking details on sump pump installation, drainage systems, or moisture barriers are warning signs. Also, be wary of those unwilling to discuss local code compliance, offer limited warranties, or avoid providing references from past Beaverton projects, as these can indicate a lack of expertise or reliability.

Helpful?

In Beaverton, a frequent mistake is underestimating how the area’s clay-heavy soil and fluctuating groundwater can impact basement waterproofing. Homeowners often skip exterior drainage improvements, such as extending downspouts or installing French drains, and rely solely on interior sealants. Attempting waterproofing during peak rainy months or neglecting to check for local permit requirements can also result in recurring moisture issues and costly repairs.

Helpful?

In Beaverton, you’ll find basement waterproofing specialists focused on moisture control, foundation repair contractors who address both structural and water issues, and drainage experts skilled in sump pump installation and exterior water diversion. Some general contractors offer waterproofing as part of larger remodels, while excavation professionals handle complex grading and soil management. Matching your project with the right expertise ensures lasting results for Beaverton’s unique conditions.

Helpful?

The Beaverton, OR homeowners’ guide to basement waterproofing services

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