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    Verified sump pump installation services reviews

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

Avatar for Harts Plumbers, Electricians, & HVAC Technicians
Harts Plumbers, Electricians, & HVAC Technicians
4.6(
1,466
)
Sump Pump - Repair or Replace

Serving Rainier, 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

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

Serving Rainier, WA and surrounding areas

Approved (Corporate)

In business since 1995

Free estimates

Emergency services offered

"Gardner came to do an inspection of my basement and provide a quote. I had received other quotes that only provided for a single sump pump install at outrageous prices. He was very thorough, took two hours to measure, inspect, provided videos and explanations on everything, and the quote was shockingly affordable with so much more work I was ecstatic! I am getting a three sump pump with back up battery, and so much more for basically what the others quoted. And, to have the option to finance through Greensky was the cherry on top! If you are in King County, ask for Gardner @ GROUNDWORKS - you won’t regret it!"
Foundation
Foundation
Foundation
Concrete
Concrete

+16

Response time2 days
125 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Harts Plumbers, Electricians, & HVAC Technicians
Harts Plumbers, Electricians, & HVAC Technicians
4.6(
1,026
)
Sump Pump - Repair or Replace

Serving Rainier, WA and surrounding areas

Approved

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 ."
Digging out the old broken pipes
House Repipe
House Repipe
House Repipe
House Repipe

+13

Recommended by91%of homeowners
Avatar for WA EVERGREEN INSULATION LLC
WA EVERGREEN INSULATION LLC
4.4(
7
)
Sump Pump - Repair or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Rainier, WA and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"Had a great experience with WA Evergreen Insulation from start to end. Rob came to my house, quoted me an insulation install, made absolutely sure that they would not cover any existing knob and tube with insulation and prevent a fire. The crew showed up and completed the job in one day. Once they got started it was clear they knew exactly what they were doing - and they managed to shimmy into the extremely small attic access and cleaned up my rat jerky in the crawlspace! I'm very happy with this job and with this company!"
After Picture Fixed and well protected
Before Picture (DANGEROUS for crawlspace!!)
New Construction Insulation
Protected and Sanitized Crawlspace
Before Picture Of No Insulation and fire hazard

+2

Response time9 hrs
Response rate93%
6 neighbors recently requested a quote
Rainier Plumbing, LLC
5.0(
3
)
Sump Pump or Interior Foundation Drains - Install

Serving Rainier, WA and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

Recommended by100%of homeowners
Avatar for Rain Pros Inc
Rain Pros Inc
4.7(
435
)
Sump Pump or Interior Foundation Drains - Install

Serving Rainier, 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
JM Plumbing and Mechanical LLC
4.8(
53
)
Sump Pump or Interior Foundation Drains - Install

Serving Rainier, WA and surrounding areas

In business since 2011

Free estimates

"I found out my water heater was leaking the night before. I noticed water coming from my laundry room had made a puddle of water into the adjacent office space. I decided to wait till next morning because I knew emergency calls can be very expensive. Next morning I started calling around for someone to come out and look at it but was finding it very difficult to find someone to come out same day. I called 3 or 4 different places and they were all not available or Did not call me back. The only company that responded to me within the hour was JM Plumbing. They were also the only company that were willing to come out same day and gave me an awesome price that beat all competitors by far. The owner agreed to come out to do the work at end of day after his last job, he arrived on time with an assistant. Was very professional, friendly, fast and did an excellent job. Total time installing was about about an hour to hour and a half. He went to buy a new water heater and new hose to replace my old one, gave me all receipts and warranty paperwork . I am very satisfied with the work he did, the heater is working beautifully and I am very pleased with the job done by JM Plumbing. I highly recommend them over anyone in olympia, they do an awesome job for an awesome price!"
Recommended by97%of homeowners
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Sump Pump Installation FAQs, answered by experts

Some sump pumps are powered by water rather than electricity. Water-powered sump pumps generally use one gallon of city water to pump out two gallons of water from its basin. Therefore, if you're looking at a potential 10,000-gallon flood, your sump pump will need to use 5,000 gallons of city water to prevent it.

The cost to repair a sump pump ranges from $400 to $550, depending on the extent of the repair and your location. Minor repairs, like fixing a switch or replacing a float, can cost just a few hundred dollars. However, more significant issues, such as motor replacement or addressing electrical problems, may cost closer to $550. Keep in mind that regular maintenance can help prevent costly repairs, and if a sump pump is beyond repair, a full system replacement ranges between $650 and $1,400.

Submersible and pedestal sump pumps are two popular types of sump pumps. Submersible models are covered by water in a sump pit, which helps keep the motor cooler and quieter. Pedestal sump pumps stick out of the sump pit, so the motor stays dry and is easier to access. Submersible sump pumps are the pricier option, but they also have longer life spans.

When a backflow valve fails, wastewater will flow back into your system, contaminating your drinking water. You’ll immediately notice backflow valve failure from a rotten smell and brown water coming from faucets. Get in contact with a septic pro or a plumber immediately if you suspect this has happened to you.

Costs depend on pump type, labor rates, and the extent of repairs or installation needs.

The Rainier, 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.