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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
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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
142 neighbors recently requested a quote
Recommended by83%of homeowners
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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%
101 neighbors recently requested a quote
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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
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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%
32 neighbors recently requested a quote
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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!

6 neighbors recently requested a quote
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JM Plumbing and Mechanical LLC
4.8(
53
)
Basement Drainage Channels - InstallDrain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For Business+3 more

Serving Onalaska, WA and surrounding areas

In business since 2011

Free estimates

"I called Jerry at 7:00 am as a leaking toilet shut -off valve and supply tube required that I shut off water to the entire house.  He responded immediately and completed the necessary repairs quickly.  I appreciated his response and will recommend him to others.
"
Recommended by97%of homeowners
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
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Avatar for Creekside Excavation & Hauling LLC
Creekside Excavation & Hauling LLC
5.0(
7
)
Basement Drainage Channels - InstallDrain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For Business+4 more

Serving Onalaska, WA and surrounding areas

In business since 2021

Free estimates

Emergency services offered

"100% job done, no complaints and would refer and use them again. Cannot speak highly enough of the professionalism of this company."
Foundation dig out & Pad Compaction
Land before road & landscaping
Progress including tree clearing
Finished Product
Additional Photos

+8

Recommended by100%of homeowners
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French Drains questions, answered by experts

If you have a sink stopper, it can feel more challenging to clean the drain without removing it, but here are a few simple steps:

  • Pour ½ cup baking soda into the drain using a funnel

  • Pour 1 ½ cups vinegar into the drain

  • Close the sink stopper for 15–20 minutes

  • Open the drain

  • Pour 2 cups of boiling water down the drain (be cautious as boiling water can damage some types of pipes)

If the drain isn’t unclogged, repeat the process.

Biodegradable drain cleaners use naturally derived ingredients, such as baking soda, vinegar, and boiling water, which bacteria and other microbes can break down. Unlike conventional cleaners that rely on corrosive bleach (sodium hydroxide), biodegradable options are gentler on fixtures and less harmful to the environment. Because they don't release harmful gasses, they are also safer to use, especially in households with children, and do not require the same safety precautions as bleach-based products.

Plumbers use a variety of tools to help unclog the toughest of drain clogs, but the most common tools they use are drain snakes and augers. They try a plunger or drain snake to start, then move to heavy-duty augers, and finally try using a hydro jetter to blast away the clog with high-pressure water. Hiring a plumber to unclog a drain costs $125 to $300, largely depending on the extent and location of the clog and which of these methods is best for clearing it.

Some homeowners use additives every month to help septic system performance, but according to the U.S. Environmental Protection Agency, the effectiveness of septic system and leach field additives is unknown. Further, additives made with organic solvents or alkali chemicals can actually be harmful to the necessary bacteria in a septic system.

Main sewer lines can clog for several reasons. For example, if you regularly dump oil or grease down your drain, it could eventually block your line. Sometimes, tree roots can penetrate and grow inside old sewer pipes, creating a major blockage. Flushing bulky items (like paper towels, diapers, or baby wipes) can also clog your plumbing system.

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.

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