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TRUSTED BY UNION, WA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon370
    Verified sump pump installation services reviews

Top-Rated Sump pump installation pros in Union - Updated Nov 2026

Avatar for Harts Plumbers, Electricians, & HVAC Technicians
Harts Plumbers, Electricians, & HVAC Technicians
4.6(
1,464
)
Sump Pump - Repair or Replace

Serving Union, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2013

Emergency services offered

Warranties offered

"Diagnostician/Estimator and Plumbing team were just excellent. Sewer work and team very good, but also very pricey. Repairs on system were well done - crawlspace access area was damaged to extract the old sewage tank. Damage is still being repaired by homeowner. Harts rebated some cost to cover access damage. All Harts team members were fully vaccinated, wore masks, and were great to work with. Harts completed work within 1 day within quoted costs. New sewer pump alarm system system malfunctioned right after the install was finished - Harts sent a repair tech out to fix it on next day - excellent service - fixed the twisted tank float problem - no charge. Building inspector noticed new sump pump was tilted and alarm wiring was not properly affixed to the house - minor issues, I would hire Harts again but negotiate hours and pricing ."
Prep Area
Waterfall Finished!
Excavation jobs and more!
 install grease trap for commercial kitchen
Delivery of Shoring

+334

40 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Groundworks
Groundworks
4.3(
314
)
Sump Pump or Interior Foundation Drains - Install

Serving Union, WA and surrounding areas

Approved (Corporate)

In business since 1995

Free estimates

Emergency services offered

"On time and very knowledgeable.  Discussed options for addressing ground water under the house, and best routing of water from the sump pumps.  Provided photos and plan for changes along with a written estimate.
"
Foundation
Foundation
Foundation
Concrete
Concrete

+16

Response time2 days
125 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for TerraFirma
TerraFirma
4.0(
100
)
Sump Pump or Interior Foundation Drains - Install

Serving Union, WA and surrounding areas

Approved

In business since 2005

Free estimates

Warranties offered

"The individual who visited and prepared the proposal, as well as the installation team, arrived on time, provided helpful and accurate detail on what work would be performed, how, and when, and executed their work in an organized fashion. The installation crew did a thorough cleanup and completed their work on time. Although the bid was competitive compared to others, the work was still more expensive than I felt it should be considering that work took less than a day and used few materials (aside from a sump pump which accounted for 1/3 of the cost). The only negative was that the financial office was unprepared with the necessary paperwork at the time of the work, causing some slight confusion. However, they did get this sorted out quickly and the minor issue did not at all delay or interrupt the work."
A System Design Specialist helping a homeowner
Encapsulating a crawl space
Fleet of vehicles in our Portland, Oregon locatio
Loading up our truck for a piering job
Loading up a truck for a waterproofing job

+33

Response time2 hrs
Response rate100%
89 neighbors recently requested a quote
Avatar for Black Hills, Inc.
Black Hills, Inc.
4.5(
606
)
Sump Pump or Interior Foundation Drains - Install

Serving Union, WA and surrounding areas

Approved (Corporate)

In business since 1993

Free estimates

Emergency services offered

"The fact that we got responded right away, and resolved our problems, We are thankful to Mr. Landaker, for put hi effort to do it today and make sure that we are going to have hot water. We are going to recommend The Black Hills Incorporation to anyone who has to replace hot water tanks. Thanks again"
Furnace
Heat Pump
Heat Pump
Furnace
Mini Split

+12

Response time1 day
4 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Robison Plumbing Service Inc
Robison Plumbing Service Inc
4.3(
112
)
Sump Pump - Repair or ReplaceSump 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 Rain Pros Inc
Rain Pros Inc
4.7(
435
)
Sump Pump or Interior Foundation Drains - Install

Serving Union, WA and surrounding areas

In business since 2006

Free estimates

Warranties offered

"I had a challenging project to remove and then install new irrigation piping and control valves around my property. They brought in the right size crew for the job, and were able to complete this work in just one day. Rain Pros teams were knowledgeable about every aspect of the job, giving me several possible solutions and making a good final recommendation so that the job would be done correctly and within stated cost estimate. I would certainly recommend them for any irrigation system repair, modification or new installation."
Before
Sump Pit with Sump Pump
Downspout coming off of a barn
4-inch PVC installed with the black asphalt emulsion and custom made flashing up.
Excavated

+51

Recommended by94%of homeowners
Avatar for Northwest Plumbing & Mechanical
Northwest Plumbing & Mechanical
5.0(
13
)
Sump Pump or Interior Foundation Drains - Install

Serving Union, WA and surrounding areas

Free estimates

Credit card accepted

"Ray is an excellent plumber and goes far and away to help you. He installed my sink/dishwasher and refrigerator water line. He worked hard, all day and even came back and checked it afterward to make sure all was in order. His estimate/bid system is easy and fast to use. Excellent Plumber. Highly, Highly recommend."
Plumbing Project
Plumbing Project
Mechanical Room
Plumbing Project
Plumbing Project

+8

Recommended by100%of homeowners
Avatar for Perma-Dry Waterproofing & Drainage, Inc.
Perma-Dry Waterproofing & Drainage, Inc.
4.4(
209
)
Sump Pump - Repair or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Union, WA and surrounding areas

In business since 1997

Free estimates

Credit card accepted

"Perms-Dry did an outstanding job. They explained the work to be done in detail, arrived on time, completed the work in one day. Their workers professional and did a great job of cleaning up once the work was complete. I have seen no signs of water issues since they installed the system"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+7

Recommended by90%of homeowners
Avatar for Hagee Plumbing
Hagee Plumbing
4.7(
41
)
Sump Pump or Interior Foundation Drains - Install

Serving Union, WA and surrounding areas

In business since 1980

Free estimates

Emergency services offered

"We had a toilet where the wax seal underneath was leaking. We contacted Anderson. Initially they offered to come out at 2pm the same day. A bit later they called back and said that due to some emergencies (our toilet really wasn't an emergency) they had to reschedule us to 4pm. They came out when expected and did the work in short order. Christian was professional and explained as he went along. At the same time we were finishing another bathroom in the basement and while he was there we had him install that toilet as well. The total bill for the two jobs was quite reasonable."
Recommended by97%of homeowners
Showing 1-10 of 47
Sump Pump Installation FAQs, answered by experts

Costs range from $300 to $1,200, depending on the pump type, issue, and installation complexity.

A water pressure booster doesn't require special maintenance. Like any house system, inspections should be a regular part of your annual schedule. Check for leaks, faulty valves, pressure loss, and mineral build-up. Pressure loss could be a result of mineral build-up, and you can descale the system with a vinegar and water solution.

Yes, it’s normal (and beneficial) to have a small amount of water in the bottom of your sump pit. It shows that your system is collecting groundwater, rain, and excess water from around your property—just like it’s supposed to. However, if the sump pit is always full, you might have a leak or a faulty sump pump.

The difference between an ejector pump and a sump pump lies in their purpose and design—an ejector pump functions to remove liquid gray water and soft solid sewage waste from your home. If you have a laundry room or bathroom in your basement, an ejector pump for your sewage tank prevents sewage from backing up in your washing machine or bathroom’s drains.

A sump pump is designed to remove excess groundwater that may enter your home, either due to flooding or periods of heavy rain.

The life span of a water pump ranges from five to 15 years on average. Regular maintenance can extend its life. If you notice significant drops in performance, strange noises, or frequent malfunctions, consider a water pump or well pump replacement. Always get in touch with a professional if you're concerned about yCan I install a water pump myself?our pump's condition.

The Union, WA homeowners’ guide to sump pump installation services

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