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TRUSTED BY ALSEA, OR HOMEOWNERS

  • Average homeowner rating star icon4.9
    Average homeowner rating
  • Verified reviews icon14
    Verified french drain services reviews

Verified Reviews for French Drain Service pros in Alsea, OR

*The Angi rating for French Drain Service companies in Alsea, OR 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 Alsea, OR 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 January 12, 2026

Top-Rated French drain pros in Alsea - Updated Nov 2026

Avatar for Groundworks
Groundworks
4.6(
915
)
Basement Drainage Channels - InstallSump Pump or Interior Foundation Drains - Install

Serving Alsea, 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
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Avatar for John's Waterproofing Co.
John's Waterproofing Co.
4.2(
72
)
Foundation Drainage - Install or ReplaceSump Pump or Interior Foundation Drains - InstallBasement Drainage Channels - Install

Serving Alsea, OR and surrounding areas

Approved (Corporate)

In business since 1974

Free estimates

Warranties offered

"Honest assessment of my drain situation. Gave recommendation for remedy. No Charge."
New Home Encapsulation
SilverGlo Insulation
CleanSpace
SaniDry Dehumidifier
Puddling in Basement

+7

Response time11 hrs
Response rate94%
28 neighbors recently requested a quote
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Avatar for TerraFirma
TerraFirma
4.0(
105
)
Foundation Drainage - Install or ReplaceBasement Drainage Channels - Install

Serving Alsea, OR and surrounding areas

Approved

Super Service Award Winner

In business since 2005

Free estimates

Emergency services offered

"Very friendly, Explained the process to us thoroughly."
Crawl Space Encapsulation with TerraFirma
Basement Waterproofing with TerraFirma
Foundation Repair with TerraFirma
Concrete Lift and Repair with TerraFirma
Before - Basement Waterproofing in Eugene, OR

+33

Response time30 mins
56 neighbors recently requested a quote
Recommended by79%of homeowners
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Avatar for Andrew Excavation & Septic, LLC
Andrew Excavation & Septic, LLC
5.0(
2
)
Basement Drainage Channels - Install

Serving Alsea, OR and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"Competent and professional work. Easy to work with. Highly recommended"
Septic Repair
Septic Repair
ATT Septic System Install
ATT Septic System Install
ATT Septic System Install

+10

Response time1 day
Response rate100%
12 neighbors recently requested a quote
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Avatar for Valley Pacific Construction INC
Valley Pacific Construction INC
4.6(
9
)
Foundation Drainage - Install or Replace

Serving Alsea, OR and surrounding areas

Approved

Super Service Award Winner

In business since 1972

Credit card accepted

Offers commercial services

"Everything was perfect. He was quick to come out, give the bid, and get the work done. He also had a great personality and was very thoughtful."
storm
underground
tree falling
storm
detention system

+2

Response time1 day
Response rate92%
7 neighbors recently requested a quote
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GARRISI INSULATION AND WATER MITIGATION LLC
5.0(
4
)
Sump Pump or Interior Foundation Drains - Install

Serving Alsea, OR and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

GARRISI INSULATION AND WATER MITIGATION LLC proudly serves its customers with pride, integrity and attention to the details that matter most to you. This is one of the many things that sets us apart from the rest. We are locally owned and operated. Give us a call today! \n

2 neighbors recently requested a quote
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Avatar for GARRISI INSULATION AND WATER MITIGATION LLC
GARRISI INSULATION AND WATER MITIGATION LLC
5.0(
1
)
Sump Pump or Interior Foundation Drains - Install

Serving Alsea, OR and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"Most on time ready and qualified installers we've had a pleasure to work with in a long time. Worked with our schedule and went above and beyond with integrity and knowledge of his scope of work...will be using again!!!"
New construction
New construction
New construction
New construction
New construction

+5

11 neighbors recently requested a quote
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Avatar for DAVIS CONSTRUCTION & EXCAVATION LLC
DAVIS CONSTRUCTION & EXCAVATION LLC
4.0(
2
)
Foundation Drainage - Install or Replace

Serving Alsea, OR and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"The RV pad turned out exactly the way we asked for it. Did a great job! Looks beautiful!"
RV PAD
RV PAD
RV PAD
RV PAD
Pressure washing

+17

21 neighbors recently requested a quote
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French Drains FAQs, answered by experts

The best drain cleaners are biodegradable ones or a mixture of baking soda and vinegar. Strong, caustic chemicals may seem appealing with promises of unclogging your drain quickly, but liquid drain cleaners can cause damage to your pipes over time. Consider making your own drain cleaner with baking soda and vinegar.

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.

Chemical drain cleaners can work to clear clogs in pipes, but their use should be approached with caution. These harsh chemicals can damage pipes over time, and they can also harm the environment. Use them sparingly and consider alternative methods such as using a plunger or a drain snake. If you have concerns about a persistent clog, it's best to consult a professional who can safely and effectively address the issue without causing further damage to your plumbing system.

For homes with a septic tank, harsh chemicals like those found in drain cleaner or bleach aren’t recommended. Some chemical drain cleaners can disrupt the balance of bacteria in the septic tank or damage your pipes. For homes with a septic tank, you can choose drain cleaners specifically formulated for use with septic tanks or go with a drain snake. When in doubt, make sure you know who to call for a clogged drain. 

You should hire a sewer service professional to unclog a main sewer line with tree roots. Tree roots can grow into the main sewer line, and this problem requires a specialized hydro jet, or rooter, that is powerful enough to clear the roots. The tree can also damage the main sewer line, and a professional will need to make repairs or replace the damaged sections. Sewer line replacement costs about $60 to $250 per linear foot.

The Alsea, OR 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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