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    Verified foundation drain installation services reviews

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

Avatar for MTU Services LLC
MTU Services LLC
5.0(
5
)
Foundation Drainage - Install or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Cosmopolis, WA and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

Protect the investment you’ve made with the knowledgeable team at MTU Services LLC. We are your local basement and foundation experts serving all of Washington state and North Idaho. We offer customized basement waterproofing, foundation repair, concrete crack repair, and basement sump pump solutions and egress windows for your home. Contact MTU Services LLC today to learn more about how we can help you protect your home. Give us a call to request a quote or to schedule service.\n\nServices include: leaking basement or crawl space repairs, foundation cracks repaired, lifting piers and levelling for your home or building, sup um systems and more.

Elevator pit waterproofing and sealing
Piers under an existing home
Piers under an existing homes middle wall
Solutions/Answers
Response time1 day
Response rate100%
4 neighbors recently requested a quote
Allied Renovations, LLC
4.2(
10
)
Foundation Drainage - Install or ReplaceConcrete Foundation - Install

Serving Cosmopolis, WA and surrounding areas

Approved

In business since 2016

Credit card accepted

Customers say: Terrific value

Allied Renovations, LLC, has over 14 years of experience in the construction business. We make sure each and every customer is completely satisfied when we finish the job. Call us today for all your Home Improvement needs.

2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Elias Construction Services LLC
Elias Construction Services LLC
4.4(
9
)
Concrete Foundation - Install

Serving Cosmopolis, WA and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

We take great pride our experience, expertise, quality, and customer service that we provide to meet the consumer's . It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. order to understand the and expectations of our customers, we take great care to work and communicate with every customer a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

After
IKO Cambridge Earthtone C
IKO Dual Grey Dynasty
3 Tab
3 Tab

+24

Response time1 day
4 neighbors recently requested a quote
Recommended by14%of homeowners
Avatar for TMR Excavation
TMR Excavation
New to Angi
Concrete Foundation - InstallFoundation Drainage - Install or Replace

Serving Cosmopolis, 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
Avatar for TerraFirma Foundation Systems
TerraFirma Foundation Systems
4.7(
12
)
Foundation Drainage - Install or Replace

Serving Cosmopolis, WA and surrounding areas

In business since 2005

Free estimates

Warranties offered

"We've had a handful of unsatisfying contractor experiences, so we tend to be a bit skeptical but our experience with Terra Firma set a new bar for us. Highly professional from start to finish. Initial consult was thorough, and didn't add on anything we didn't ask for or need. When they were working at the house the crew was prompt, professional, left the jobsite clean each day. Final result was exactly what we were expecting. Worth the investment, don't go with the lowest bidder on your foundation, it's not worth it. Thank you Terra Firma crew!"
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Additional Photos

+11

Response time8 hrs
Response rate100%
Recommended by80%of homeowners
Avatar for Expedeck
Expedeck
5.0(
24
)
Concrete Foundation - Install

Serving Cosmopolis, WA and surrounding areas

In business since 2015

Free estimates

Credit card accepted

"We had two building projects - replacing a decades-old retaining wall made from railroad ties, and replacing a large deck. We asked for bids, and liked the people at Sta-Built best. They are very professional, friendly, and did top-quality work. Our old deck was originally built by an "economy" contractor (what we could afford at the time), and the foundation was "shoddy", to say the least. We are so pleased with the new deck. The foundation is solid, and the new configuration fits our needs very well. Highly recommended!"
Andrew Farjo
Landscape Lighting with retaining walls
Accent wall / Seating wall with LED lighting
Andrew Farjo
Andrew Farjo

+31

Recommended by100%of homeowners
Showing 1-10 of 38
Foundation Drain Installation FAQs, answered by experts

No, homeowners insurance policies do not typically cover sump pump installation. However, some companies may offer incentives in the form of discounts or reduced premiums if homeowners install sump pumps. Insurance companies do this because sump pumps can reduce water damage claims. You may also be able to obtain enhanced water-backup coverage after installing a sump pump.

Costs depend on pump type, labor, and site-specific requirements like excavation or drainage lines.

There are dedicated sump pump pros in most areas who can install sump pumps. However, plumbers and waterproofing specialists should also have a good amount of experience with installing sump pumps. If you don’t have any dedicated specialists in your area, reach out to a basement waterproofing specialist or a plumber.

Yes, it’s possible to install a sewage ejector pump outside rather than in a basement. However, there may be some extra steps involved, including running pipes from the inside to the outside of your home and digging (and re-filling) a hole for the basin. If you aren’t comfortable with this type of work, contact a plumbing pro to handle it for you.

A sump pump can be added to an existing basement. To do this, you will need to use a jackhammer or sledgehammer to break up the concrete and dig a pit. You will also need to create a hole in your basement wall to run the discharge pipe through.

The Cosmopolis, WA homeowners’ guide to foundation drain installation services

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