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Best french drain pros near Longview, WA

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

Avatar for Summerson Plumbing
Summerson Plumbing
4.8(
40
)
Drain Line Breakage - Camera LocateDrain Line Breakage - Camera Locate - For BusinessSump Pump or Interior Foundation Drains - Install

Serving Longview, WA and surrounding areas

Approved

In business since 1997

Free estimates

Emergency services offered

"EXCELLENT! It was a somewhat emergency call because my walls were being damaged by the water, and Matt replied right away to my call trying to fit me in. He text back and said one of his guys, Ryan, was available and on his way! Ryan was great! Courteous, professional, punctual (and bonus - he unclogged the bathtub drain!). Thank you for saving the day!"
1 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Clear Flow Drains & Rooter, LLC
Clear Flow Drains & Rooter, LLC
5.0(
5
)
Drain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For BusinessDrain Line Breakage - Camera Locate+1 more

Serving Longview, WA and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

Clear Flow Drains & Rooter LLC is your trusted local expert for professional drain cleaning and sewer services throughout the Portland–Vancouver metro area. We are locally owned, licensed, bonded, and insured, providing reliable service at honest, affordable prices.\n\nOur services include:\n\nResidential drain cleaning starting at $199\n\nMain sewer line cleaning\n\nHydro-jetting\n\nSewer camera inspections\n\nKitchen, bathroom, and laundry drains\n\nCommercial drain cleaning\n\n24/7 emergency drain services\n\nWe take pride in quality workmanship, upfront pricing, and exceptional customer service. No unnecessary upselling, no hidden surprises—just dependable solutions to get your drains flowing again!\n\nClogs Don't Stand a Chance!\n\nCall (360) 360-8462 today for fast, professional service!

1 neighbors recently requested a quote
Avatar for Granite Plumbing Services LLC
Granite Plumbing Services LLC
5.0(
7
)
Sump Pump or Interior Foundation Drains - Install

Serving Longview, WA and surrounding areas

Approved

Free estimates

"Lane and his helper (sorry I can’t remember name) from Granite Plumbing removed a heating oil tank from basement that was over 1/4 full , drained tank and removed. Very professional, quick and careful. There clean up was immaculate. I appreciate that he was able to adapt to my schedule and come so quickly. I will be contacting Lane for future jobs. I would recommend Granite Plumbing. Thank you Lane"
29 neighbors recently requested a quote
Avatar for Groundworks
Groundworks
4.6(
915
)
Basement Drainage Channels - InstallSump Pump or Interior Foundation Drains - Install

Serving Longview, WA 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.
4.2(
72
)
Foundation Drainage - Install or ReplaceSump Pump or Interior Foundation Drains - InstallBasement Drainage Channels - Install

Serving Longview, WA and surrounding areas

Approved (Corporate)

In business since 1974

Free estimates

Warranties offered

"Fast work, very well priced, and got the job done. I had a flow problem following the work (sediment in the lines) which the promptly returned the following day to repair, at no additional cost to me. I’ll use them for my next project."
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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French Drains FAQs, answered by experts

Bleach is generally not recommended for your shower drains. Although diluted bleach can technically help clean your drain, it will not unclog your pipes. In fact, bleach can harm your plumbing system because it’s so powerful. The bleach can change the color of your sink and even corrode metal pipes and fittings.

Often, people reach for bleach because it's already in their house. But it's worth getting a plunger or a drain snake for the job instead. It'll be a lot less money to buy a new plunger than to pay a plumber to repair or replace damaged pipes.

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.

It is safe to flush small amounts of bleach down the toilet. Don’t flush more than ¼ cup of bleach. Instead, consider diluting it and pouring it down the sink drain.

Bleach—even diluted bleach—is not always the safest option for cleaning your drains. With a high pH, bleach can be highly corrosive to many types of pipes, especially when used regularly. When mixed with household cleaners and organic waste, it can also create dangerous chemicals. Remember to use proper protective equipment and ventilation when dealing with bleach.

If the drain is frozen, the pipes connecting to the washing machine are likely frozen. If the hot water trick doesn’t also unfreeze the washing machine pipes, you can gently apply heat with a hair dryer on the lowest setting. Start at the end of the pipe closest to the faucet to prevent pressure from building in the pipes, and make sure the faucet is open to drain the water as it melts.

The Longview, WA homeowners’ guide to french drain services

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