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

"Quick response to leaking water line under house. Professional and courteous. Just a bit high on the charges. 1 hour and 10 feet of PEX tubing with 2 connectors $513.24 after a $50 deduction. Otherwise great..."
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

A saturated leach field can result from various underlying issues, so it's best to call a professional septic company to diagnose and treat the problem. Depending on the cause of the saturation, potential fixes include pumping out a full septic tank, adding more bacteria to the tank, or regrading the soil to fix low spots. It may also be necessary to reroute rainwater and runoff away from the leach field using gutters, downspouts, and extenders. Once the primary issue is resolved, planting specific types of vegetation over the area can help absorb excess water. In more severe cases, you might need to install a larger septic tank or replace the leach field entirely.

You can pour hot water down your gutter drain to melt ice and keep ice dams from forming. If the problems persist, consider investing in heat cables to run in your gutters. Heat cables can adjust based on the surrounding temperature to keep ice thawed.

Costs depend on clog severity, pipe condition, equipment required, and labor.

There are several steps you can take to prevent your AC drain from clogging. This includes cleaning the drain line at least every three months, changing the filter every one to three months, and getting your AC serviced annually. Also, if any problems arise with your AC, hire an HVAC technician to deal with them ASAP.

In some cases, operating a snake can damage your drain and pipes. This depends on the overall condition of your pipes and how gently you operate the auger. For instance, older galvanized pipes covered in zinc are susceptible to scratches when using a drain snake. Additionally, it’s common for newbies to apply too much force when extending the snake, leading to scratches and related damage. You can also crack the porcelain with an electric auger if you’re snaking a toilet drain. If you’re using a manual snake or auger, the risk is minimal.

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