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Best basement waterproofing pros near Damascus, OR

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TRUSTED BY DAMASCUS, OR HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon48
    Verified basement waterproofing services reviews

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

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

Serving Damascus, 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 Damascus, 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 Damascus, 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 Damascus, 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 Damascus, 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 Damascus, OR and surrounding areas

Approved

In business since 2000

Emergency services offered

Warranties offered

"I appreciated how methodical Jon-Marc was in diagnosing the problem behind the leak in the kitchen ceiling from the upstairs bathtub, which appeared at first to be a failed shower diverter. But, when, after removing the faucet, the physical evidence inside the wall did not match what he expected to see with that issue, he kept looking and testing. Eventually, he identified the real problem as a failed seal around the wall soap dish, which plumbers don't repair. However, he also established that there is nothing wrong with the bathtub plumbing, which is good to know. He installed a new diverter, as the old one was starting to fail. Jon-Marc was courteous, professional, knowledgeable, and good at his job. He answered all my questions, explained what he would be doing, and stayed until the job was finished. He also kindly found that the leaking garbage disposal had rusted out. This was the second time I hired 3 Mountains Plumbing. I highly recommend the company and would hire them again."
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 Damascus, 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
Avatar for Henco Plumbing Services LLC
Henco Plumbing Services LLC
4.7(
17
)
Basement Drainage Channels - Install

Serving Damascus, OR and surrounding areas

Approved (Corporate)

In business since 2012

Free estimates

Emergency services offered

"Henco showed up when they said they would and they performed the work we asked them to do. They did a good job with the replacement of the pipes. The water flow improved throughout the house and the drains were functioning much better - no more water backing up in the hall bath tub when the washing machine was draining. The Sheetrock work was the weak link in this job. In places the sheetrock replacements looked good, but in some spots the work was sloppy and they did not clean up very well after they completed their work."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+3

Response time2 days
Recommended by86%of homeowners
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Basement Waterproofing FAQs, answered by experts

Yes, if your crawl space is prone to humidity, a dehumidifier can help keep it dry. For use in a crawl space, you’ll need a high-capacity and high-efficiency dehumidifier with built-in air filtration. It’s also wise to purchase one with a self-draining feature. Otherwise, you’ll need to climb into the crawl space to empty the dehumidifier.

One handy thing about whole-house dehumidifiers is, once installed, you don’t have to worry about placement or changing the dehumidifier’s position. But if you are using a portable dehumidifier, we suggest keeping it away from walls, vents, and furniture. It needs a central, unobstructed spot with access to lots of air to do its job.

Generally, moisture barrier padding costs $0.75 to $1.50 per square foot, varying by brand and mix. That’s a lot more than standard padding, which runs $0.25 to $0.90 per square foot. The price difference between these two options might seem steep, but think of it as insurance against future carpet replacement costs and subfloor damage. If you have pets or kids, that extra investment in high-risk areas like your living room often pays off.

In some circumstances, foundation refacing or repair may be a better option for your home than sealing a foundation. It’s always a good idea to take steps to prevent moisture problems in your foundation, but if there are any structural concerns, those will usually need to be fixed first. When dealing with foundation issues, it’s a good idea to get a professional opinion so you can avoid bigger problems down the road. 

Flooded basement cleanup can take anywhere from a few days to several weeks, depending on the extent of water damage, the type of water involved, and the need for repairs or mold remediation. Severe cases with structural damage or extensive mold may require longer timelines. Quick action and professional help can speed up the process and reduce overall damage.

The Damascus, OR homeowners’ guide to basement waterproofing services

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