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    Average homeowner rating
  • Verified reviews icon558
    Verified foundation drain installation services reviews

Top-Rated Foundation drain installation pros in Philomath - Updated Nov 2026

Avatar for Groundworks
Groundworks
4.6(
915
)
Sump Pump or Interior Foundation Drains - Install

Serving Philomath, 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
Avatar for Liberty Concrete & Epoxy Floors
Liberty Concrete & Epoxy Floors
5.0(
13
)
Concrete Foundation - Install

Serving Philomath, OR and surrounding areas

Approved

In business since 2001

Free estimates

Emergency services offered

"Liberty did a great job from getting a quote to performing the work!! As soon as I requested a quote online, Joe called to arrange a time to come look. Quote was put together and received within days. I had a pretty good idea of what I wanted our driveway and entry way to look like but I wasn’t 100% sure, Jody was super helpful on offering suggestions and helping finalize the plan. Once on-site they did an amazing job and we couldn’t be happier with the finish product. We get so many compliments from neighbors who have lived in our neighborhood for years on what a difference the driveway and walkway has made and the curb appeal it has brought to the front of our home..I have been in construction for over 20 yrs and I would highly recommend Liberty concrete. I will be using them on my backyard project here soon!!"
Concrete Driveways Project
Concrete Driveways Project
Concrete Driveways Project
Additional Photos
Additional Photos

+35

1 neighbors recently requested a quote
Recommended by90%of homeowners
GARRISI INSULATION AND WATER MITIGATION LLC
5.0(
5
)
Sump Pump or Interior Foundation Drains - Install

Serving Philomath, 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
Avatar for TerraFirma Foundation Systems
TerraFirma Foundation Systems
5.0(
11
)
Foundation Drainage - Install or Replace

Serving Philomath, OR and surrounding areas

In business since 2005

Free estimates

Warranties offered

"Being on the coast and close to wetlands, there is a ton of water accumulation in my crawlspace. Terra Firma had a ton of work to dig out the drainage trenches but they did a wonderful job! They had a large crew that tackled different projects to get it all done in 1 day. Everyone was professional and very friendly. I will definitely use them again for my continual foundation improvements."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+11

Response time7 hrs
Recommended by70%of homeowners
Avatar for John's Waterproofing
John's Waterproofing
4.3(
252
)
Foundation Drainage - Install or Replace

Serving Philomath, OR and surrounding areas

In business since 1974

Free estimates

Warranties offered

"I researched 4 companies to fully encapsulate a crawlspace damaged by flooding and rats. I also did a lot of research into possibly doing it myself so i knew what to look for. John's was the most expensive, but they were all in the same general ballpark. I was put off by some of the competitors marking insulation as "extra" and not including in their initial estimate. Insulation is required! John's costs a bit more but you get more too: John's insulated the entire floor with wrapped foam pads, dug a drain trench around the entire perimeter, jacked up every concrete pier to slide vapor barrier underneath the posts, and used proper mechanical fasteners on all of the wall insulation boards. Every nook and cranny was sealed with spray foam. The workers were amazing. They did not cut any corners. They nipped and tucked every tight little spot and never complained or made excuses. They built a plastic clean-tunnel every day and took it down down every afternoon. They did not leave behind trash. My crawlspace is clean enough to literally eat off the floor now. I would recommend John's if you want your job done correctly."
Trim around fireplace was removed and mold found along the base
Fiberglass was drooping away from the home, removing its insulation value
Fiberglass Insulation was falling down in clumps from water weight
This window had been upgraded and given trim to give a clean and finished look
Re removed the below-grade sections of the wall and waterproofed with ThermalDry Radiant vapor barrier and installed a drain system around the interior perimeter

+41

Response time9 hrs
Response rate100%
14 neighbors recently requested a quote
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Foundation Drain Installation FAQs, answered by experts

Preventing future basement flooding often involves installing sump pumps, improving drainage, sealing foundation cracks, and maintaining gutters. Costs vary, but preventive measures can range from a few hundred to several thousand dollars, depending on the solutions chosen. Investing in prevention can save you money on future flooded basement cleanup costs and repairs.

No. Sump pumps have different capacities, which refers to the volume of water that they can remove. They also come in various horsepower ratings, which measure the size of the pump’s motor. For many homes, 1/3 horsepower is enough. But if you live in an area that floods often, you might need a more powerful model.

There are a few possible sump pump drainage locations, including a neighborhood storm drain, into a creek or pond, or underground. Don’t let your sump pump water go into your sewer or septic system. Ideally, your drainage spot should be on a downhill slope that’s at least 10 to 20 feet away from your home’s foundation. Before choosing a location, check your local codes and regulations.

Signs include persistent dampness, mold or mildew presence, musty odors, and visible water stains. If any of these occur, it is advisable to contact a professional for an inspection.

If you hire a professional, installing a new sewage ejector pump costs $850 to $3,500, or an average of $2,300. Otherwise, if you handle the installation yourself, you can expect to pay $500 to $1,000 for the sewage ejector pump, permits, and other supplies required for this DIY project.

The Philomath, OR homeowners’ guide to foundation drain installation services

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