Top-rated french drain pros.

Get matched with top french drain pros in Onalaska, WA

Enter your zip and get matched with up to 5 pros

Need a pro for your french drain service project in Onalaska, WA?

Select your specific project to find the pro for you.

TRUSTED BY ONALASKA, WA HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon69
    Verified french drain services reviews

Verified Reviews for French Drain Service pros in Onalaska, WA

*The Angi rating for French Drain Service companies in Onalaska, WA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their French Drain Service needs.

*The HomeAdvisor rating for French Drain Service companies in Onalaska, WA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their French Drain Service needs.

Last update on June 17, 2026

Find French drain pros in Onalaska

Avatar for Black Hills, Inc.
Black Hills, Inc.
4.5(
606
)
Drain Clog or Blockage - ClearDrain Line Breakage - Camera LocateSump Pump or Interior Foundation Drains - Install

Serving Onalaska, WA and surrounding areas

Approved (Corporate)

In business since 1993

Free estimates

Emergency services offered

"Tim was super efficient and knowledgeable with plumbing houses! Job was done perfect and cleaned up after job was complete! I would recommend to anyone needing kitchen sink installed. Thank you Tim Tony S"
Furnace
Heat Pump
Heat Pump
Furnace
Mini Split

+12

Response time1 day
4 neighbors recently requested a quote
Recommended by92%of homeowners
Request Quote
Avatar for Groundworks
Groundworks
4.3(
314
)
Sump Pump or Interior Foundation Drains - InstallBasement Drainage Channels - Install

Serving Onalaska, WA and surrounding areas

Approved (Corporate)

In business since 1995

Free estimates

Emergency services offered

"Danila and Valeri did an excellent job on repairing the concrete on my driveway! These gentlemen are geniuses! I am very satisfied with their work!"
Foundation
Foundation
Foundation
Concrete
Concrete

+16

Response time2 days
135 neighbors recently requested a quote
Recommended by83%of homeowners
Request Quote
Avatar for TerraFirma
TerraFirma
4.0(
100
)
Foundation Drainage - Install or ReplaceSump Pump or Interior Foundation Drains - InstallBasement Drainage Channels - Install

Serving Onalaska, WA and surrounding areas

Approved

In business since 2005

Free estimates

Warranties offered

"I had a patio that was in need of leveling. They knew exactly what to do and did it in a day. It looks great and I am very happy."
A System Design Specialist helping a homeowner
Encapsulating a crawl space
Fleet of vehicles in our Portland, Oregon locatio
Loading up our truck for a piering job
Loading up a truck for a waterproofing job

+33

Response time2 hrs
Response rate100%
91 neighbors recently requested a quote
Request Quote
Rainier Plumbing, LLC
5.0(
3
)
Drain Clog or Blockage - ClearSump Pump or Interior Foundation Drains - Install

Serving Onalaska, WA and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

Recommended by100%of homeowners
Request Quote
Avatar for Diversified Crawlspace Servs
Diversified Crawlspace Servs
3.9(
25
)
Foundation Drainage - Install or Replace

Serving Onalaska, WA and surrounding areas

Approved

In business since 1992

Free estimates

Emergency services offered

"We had a foot of water in our crawl space after the snow and 6 in. of rain from the December 2021 storms. I had called several companies to come out to take a look and give quotes. Ethan from diversified was the 3rd quote we received. Ethan explained the issue, explained what they would do to remedy it, and answered all my questions. He sent me the quote which was very resonable. BE SURE TO GET SEVERAL QUOTES. ONE COMPANY QUOTED US DOUBLE OF WHAT WE PAID DIVERSIFIED. They were able to get a team out two days later. The team was on time, professional, and did really good work. We ended up needing a sump pump due to ground water coming up. They applied a mold application and completed the work in a day. I highly recommend these guys and did my research prior to having them do the work. I am very impressed and happy we chose them."
crawlspace drainage
crawlspace drainage
crawlspace drainage
crawlspace drainage
crawlspace drainage

+18

7 neighbors recently requested a quote
Recommended by60%of homeowners
Request Quote
Avatar for WA EVERGREEN INSULATION LLC
WA EVERGREEN INSULATION LLC
4.4(
7
)
Sump Pump or Interior Foundation Drains - Install

Serving Onalaska, WA and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"The estimator was great, and we have already referred Evergreen twice!"
After Picture Fixed and well protected
Before Picture (DANGEROUS for crawlspace!!)
New Construction Insulation
Protected and Sanitized Crawlspace
Before Picture Of No Insulation and fire hazard

+2

Response time9 hrs
Response rate93%
12 neighbors recently requested a quote
Request Quote
Avatar for TMR Excavation
TMR Excavation
New to Angi
Foundation Drainage - Install or Replace

Serving Onalaska, WA and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

TMR Excavation LLC is a locally owned excavation company serving Southwest Washington with affordable, high-quality dirt work. We specialize in residential projects including Site prep, Shop pads, Driveway installs, land clearing, grading, trenching, drainage solutions, brush removal, and more. With 10 years of experience working for top regional contractors in both heavy civil and residential jobs, we bring the experience to the private sector — offering honest service, transparent process, expert results, and a job done right. From the first estimate to the final grade, we take pride in getting your project done for you!

8 neighbors recently requested a quote
Request Quote
Avatar for Pinnacle painting and mainu
Pinnacle painting and mainu
4.9(
15
)
Drain Line Breakage - Camera LocateDrain Line Breakage - Camera Locate - For BusinessSump Pump or Interior Foundation Drains - Install

Serving Onalaska, WA and surrounding areas

Free estimates

Emergency services offered

Credit card accepted

"From start to Finnish was exceptionally pleased with they're work. So friendly and so prompt. They painted the exterior in the summer and we hired them again with no second thought! Our dinning room looks bigger and brighter!!"
Painting - Exterior Project- Deck staining
Painting - Exterior Project- Deck staining
Painting - Exterior Project- Deck staining
Painting - Exterior Project- Deck staining
Painting - Exterior Project- Deck staining

+29

Recommended by100%of homeowners
Request Quote
...
Showing 1-10 of 68
French Drains questions, answered by experts

For disposal clogs with standing water, use a sink plunger and place it over the garbage disposal drain. Push the sink plunger up and down the drain about six to eight times before lifting. If the sink drains, the clogged food particles are dislodged from the drain. If there’s still standing water, repeat the steps until the standing water clears out. 

While technically possible, it is unlikely that a clogged toilet will fix itself. Clogs caused by water-soluble materials like toilet paper or human waste may eventually break down in the water, allowing flow to resume. However, this can take time, and any clogs from solid objects require manual removal. In most scenarios, especially if you don't have another bathroom, it is best to fix the clog yourself or call a plumber.

It’s sometimes difficult to distinguish a clog from a frozen drainpipe since ice technically causes a clog. If the temperature doesn’t tip you off, there are a few additional signs that your pipe is frozen. Look for condensation and frost around the pipes. Ice in pipes can cause a banging or clanking noise as opposed to a clog from a softer material.

In most areas, drain cleaning professionals don’t technically need a license, as they aren’t altering your plumbing system in any way. However, we recommend hiring a drain cleaning professional with a plumbing license and certification. Certified plumbers are more likely to provide professional solutions to drain clogs without damaging your system. They’ll also have the diagnostic tools and experience necessary to remove the clog entirely rather than providing a temporary solution, as a handyperson might. Use Angi’s state licensing tool to check your plumber’s professional licenses before hiring.

To unclog a plumbing vent, you first need to locate it. Look at your home's roofline. The plumbing vent will be a vertical pipe sticking straight up from the roof. Since this pipe runs all the way to the main drain underneath your house, you should also be able to find it in the attic.

The Onalaska, WA homeowners’ guide to french drain services

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

See all articles