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TRUSTED BY UNION, WA HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon355
    Verified foundation drain installation services reviews

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

Avatar for Andy Construction LLC
Andy Construction LLC
4.9(
30
)
Foundation Drainage - Install or Replace

Serving Union, WA and surrounding areas

Approved

In business since 2011

Free estimates

Warranties offered

"I have a 1906 cottage in N Seattle, with an old porous foundation. Water came into the basement for the first time in 20 years. Another contractor bid the job at $12,000 after 3 site visits and almost a month. Andy came out to the house the same day I talked to him, and estimated the same job at half that price. He followed up with questions, asked about making another visit, came out again and saw that the drainpipe was disconnected at the top of the area being flooded. 75% of the roof's water was pooling against the house. He found a ladder and fixed it and isn't charging me a dime. So, no French drain, no Delta drain, no foundation treatment, no 50' of trenching, no $$$. Andy was timely, reliable, did what he said, and knows his stuff. He was a great communicator, and I feel so so lucky to have found him."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Response time8 hrs
1 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Designer Concrete
Designer Concrete
5.0(
51
)
Concrete Foundation - Install

Serving Union, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2001

Free estimates

Warranties offered

"Outstanding owner and operator of this concrete business. Rome excavated, installed rock, and finished the concrete for a pickleball court, shed pad, and extension to my driveway. Everything was done perfectly and on time. Exceptionally pleased with the work, workmanship, and the people he hired to complete a multi concrete and excavation project. So very thankful he called during my initial call for help. Excellent job and Rome leaves this project with a lifetime friend in me."
Concrete - Pouring & Repair Project
Concrete - Stamped & Decorative Project
Concrete - Stamped & Decorative Project
Concrete - Pouring & Repair Project
Concrete Driveways Project

+358

Response time12 hrs
2 neighbors recently requested a quote
Recommended by74%of homeowners
Avatar for Robison Plumbing Service Inc
Robison Plumbing Service Inc
4.3(
112
)
Sump Pump or Interior Foundation Drains - Install

Serving Union, WA and surrounding areas

Approved

In business since 1986

Emergency services offered

Warranties offered

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

10 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for MTU Services LLC
MTU Services LLC
5.0(
5
)
Foundation Drainage - Install or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Union, WA and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"went very well. service was prompt, work was completed efficiently, thoroughly, and timely. everything was explained beforehand during bid in such a way that even someone who knows nothing about the work involved could understand. honest people who know what they are doing. treated our residents with respect. and help to maintain a safe path for them to travel through our main entrance. if you need the services they offer these are the ones to do it. fair pricing as well. only ones I found that actually guarantee the work they do for this type of job."
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
Avatar for Diversified Crawlspace Servs
Diversified Crawlspace Servs
3.9(
25
)
Foundation Drainage - Install or Replace

Serving Union, WA and surrounding areas

Approved

In business since 1992

Free estimates

Emergency services offered

"Excellent company! These guys did a great job of installing insulation in my attic as well as the removal of old insulation. Also, the clean-up job after the job was great too. The technicians were knowledgeable and friendly. No issue in recommending."
crawlspace drainage
crawlspace drainage
crawlspace drainage
crawlspace drainage
crawlspace drainage

+18

4 neighbors recently requested a quote
Recommended by60%of homeowners
Avatar for Elias Construction Services LLC
Elias Construction Services LLC
4.4(
9
)
Concrete Foundation - Install

Serving Union, 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
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Foundation Drain Installation FAQs, answered by experts

Ideally, your sump pump discharge should run down a natural downhill slope 10 to 20 feet away from your home’s foundation. However, if your property is naturally flat, that might not be an option. Instead, you may be able to discharge it into a neighborhood storm drain or a nearby creek or pond. If that’s not possible, consider burying it underground.

A sewage ejector pump is necessary if you have any plumbing fixtures, such as a bathroom, laundry room, or sink, located below the level of your home's main sewer line. Standard plumbing relies on gravity to drain wastewater and solid waste into the municipal sewer system or a septic tank. For fixtures below this level, like those in a basement, gravity cannot move the waste upward. The ejector pump provides the force needed to pump the sewage up to the main line. Without one, wastewater from below-ground fixtures would back up, potentially causing a sewage overflow and flooding. If all of your plumbing is on the main floor or higher, gravity is sufficient and an ejector pump is not needed.

In most cases, standard homeowners insurance policies do not cover damage from a sump pump failure or overflow. Coverage for water damage is often limited to sudden, unexpected events like a burst pipe that was not caused by negligence. To be covered for sump pump issues, you will likely need to purchase a specific rider, endorsement, or additional water backup insurance. If your insurer offers this type of coverage, they may require proof that your sump pump is regularly maintained.

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.

Standing water under your house can threaten its structural integrity. If water pools in your crawl space, it can damage the foundation and the structure above ground, causing wood rot, mold, and other problems. If you have a concrete foundation, standing water under your house can also make your foundation slabs crack.

The Union, 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.