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Find Sump pump or interior foundation drains installers in Issaquah

Avatar for Drain Pro Plumbing Inc
Drain Pro Plumbing Inc
4.8(
603
)

Serving Issaquah, WA and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"The need for a footing drain was a surprise to me during my basement remodel due to water leaking in through the blocks. Raman and his team got me on the schedule fairly quickly, did a great job. They also set up new plumbing for 2 bathrooms and a kitchen in the basement, and removed my old water heater and installed a tankless water heater. Any issues that came up, they were very quick to resolve (including an old copper pipe that they didn't install which welding came loose, and they were there same day to fix.) great honest service, reliable service. Pricing, well, plumbing is not cheap, but I think they are comparable to anyone in the business. I would definitely use them again. Thanks Drain Pro!"
Water service
Split water meter
Water meter installation
Water heater installation
Broken p-trap and pop assembly

+18

Response time1 day
1 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Seatown Electric Plumbing Heating & Air
Seatown Electric Plumbing Heating & Air
4.8(
1,392
)

Serving Issaquah, WA and surrounding areas

Approved (Corporate)

In business since 2013

Emergency services offered

Warranties offered

"Determined sump pump failure was not due to electrical issues. They kept me posted by text prior to arrival. Showed up on time. And even made phone calls to a plumbing group to get them out as soon as possible. The tech went out of his way to get us the help we needed."
Generator Repair
Additional Photos
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Electrical Panel Repair
Additional Photos

+44

87 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Insulation Co., LLC - Removal & Clean Outs
Insulation Co., LLC - Removal & Clean Outs
4.9(
226
)

Serving Issaquah, WA and surrounding areas

Approved

In business since 2009

Free estimates

Warranties offered

"I hired the Insulation Co and it was the right choice. First let me say if you need crawl space services I whole heartedly recommend this company. The owner Jo, was so responsive, he listened to my needs and concerns, and every time I reached out to him prior to the work being done and even after it was done, he was so quick to respond. I will also add, Jo was very patient with my many questions. I needed the crawl space cleaned, sealed, and new heating ducts installed. This was a very difficult job as the crawl space has very low clearances. They did so many things like disinfecting, wrapping the plumbing, sealing the new ducting, sealing the crawl space from outside intruders. Very thorough!!! I cannot say enough good about the job the crew did, 4 folks the first day and 3 the second day. Raphael was the team lead and he was great to work with, he listened to the concerns that I had and kept me updated throughout the two day job. Raphael, would show me pictures when I had questions about things under the house. He was awesome to work with. My crawl space entry is in a small clothes closet in a carpeted room and this was a dirty job but you would not even know they had been here. They protected the carpet as well as our teak hardwoods that lead to the entry of the house. Outside was the same, no debris at all. Highly recommended!"
1
2
3
1
2

+46

Response time5 hrs
Recommended by49%of homeowners
Avatar for Knockout Plumbing & Mechanical, LLC
Knockout Plumbing & Mechanical, LLC
5.0(
14
)

Serving Issaquah, WA and surrounding areas

Approved

In business since 2019

Emergency services offered

Warranties offered

"We were in a jam. We are attempting to buy our first home. We had our inspection scheduled and on the morning of, we learned of a potential plumbing issue. There was a report filed with the city stating that a couple of years ago there was some kind of sewer back up. This house is old, so I wanted to make sure we weren't signing up for any potential problems. I called around to local plumbers in the area. NONE of them were able to accommodate our need on this shortened time frame. I got Zach's number from a contractor friend of mine and in a last ditch effort gave him a call. Unlike some of the other plumbers I'd spoken with, Zach validated my concerns and informed me that he would recommend that I have my system inspected. He was very patient with my partner and I, making room for us that evening to show up in exemplary fashion. He did a full inspection of our sewer lines with a camera and explained to us what the different piping meant. He then tested our water pressure and advised us to request that the seller offer concessions to cover the cost of putting in a pressure reduction valve. He explained the reasoning behind his recommendations and took time to insure that we understood why he was recommending these services. He also took the time to explain and answer questions about potential upgrades as my partner wants to upgrade the hot water tank. He outlined different product options and explained with great knowledge and detail the differences between the products. I would highly recommend this company. If we get the home we will definitely be having this company come back and preform the necessary work that is needed for our new home."
Additional Photos
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+53

Recommended by100%of homeowners
Avatar for Schmitty's Plumbing
Schmitty's Plumbing
4.8(
50
)

Serving Issaquah, WA and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"We had a tricky leak that needed tracking down. We could hear it, but not see it. Our usual plumber was not available, so found Schmitty's on AngiesList and called. Thankfully, he was available to come out that afternoon, and after some detective work we finally narrowed down the area. It was evening by then, so he brought Trace out first thing in the morning to dig under the foundation and expose the leak. Between the two of them, they solved the issue... which turned out to be not one, but four pinholes in the copper pipe underneath the cement slab foundation. Brian said it might be the trickiest soldering job on the least amount of available pipe (1/4") in a very tight area in 20 years. Their pricing was reasonable and fair for an emergency service. Would definitely call them again. Thanks Schmitty!"
Response time1 day
Recommended by93%of homeowners
Avatar for Mad Pipers Plumbing
Mad Pipers Plumbing
4.7(
32
)

Serving Issaquah, WA and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"I went to Mad Pipers for a second opinion after getting a vague and uninformed assessment of my drain issues from a different company. Ragen and Zach not only took the time to figure out the extent of the problem, but they made sure I understood and knew what my options were, without pressuring me to hire them. I respected both their attention to detail and integrity so decided to hire them for the job. Rather than replace the entire drain system as recommended by another company, they discovered the problem areas where roots were growing into the pipes and were able to replace just the necessary sections effectively and efficiently. This included excavating and trenching the line from a tiny crawl space, redirecting the line to a much more practical location outside the house, adding gravel around the new pipe, reconnecting the line to the unaffected section, and complete and tidy cleanup of my yard, all in two days. I have complete faith in these guys and would definitely hire them again for any future plumbing needs."
Additional Photos
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Additional Photos

+2

1 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for All Pro Plumbing Northwest, LLC
All Pro Plumbing Northwest, LLC
4.5(
573
)

Serving Issaquah, WA and surrounding areas

Approved

Super Service Award Winner

In business since 1994

Emergency services offered

Warranties offered

"Veteran-owned business. Honest, reputable and on time for the appointment. Ross and David spent all afternoon clearing out two clogged drain spouts and replaced/repaired a badly cracked PVC pipe after hydro jetting them. They inserted a snake with a camera and showed me the problem. They also provided a veteranâ  s discount! Thank You. Brad Pesek"
Our Team
139 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Groundworks
Groundworks
4.3(
313
)

Serving Issaquah, 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
183 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Pipers Drain Repair LLC
Pipers Drain Repair LLC
4.8(
14
)

Serving Issaquah, WA and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

Pipers Drain Repair is a trusted provider of professional plumbing company services dedicated to keeping residential and commercial plumbing systems flowing efficiently. With a commitment to quality workmanship, fast response times, and exceptional customer service, Pipers Drain Repair specializes in diagnosing and resolving a wide range of plumbing issues, from leaking water line repairs to full house repipes. Using advanced equipment and proven techniques, the company delivers reliable, long-lasting solutions that help prevent costly future problems. Pipers Drain Repair takes pride in offering honest assessments, transparent pricing, and customized services tailored to each customer’s needs. Whether handling routine maintenance, drain inspections, hydro jetting, or complex repairs, the team is focused on delivering dependable results with minimal disruption. Known for professionalism, integrity, and attention to detail,

Liner Install
Liner Install
sewer camera inspection
Sink Drain Repair
Sink Drain Repair

+39

2 neighbors recently requested a quote
Avatar for Robert the Plumber and HVAC 2 LLC
Robert the Plumber and HVAC 2 LLC
5.0(
5
)

Serving Issaquah, WA and surrounding areas

Approved

Emergency services offered

Warranties offered

Credit card accepted

Robert the Plumber and HVAC 2 is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have years of hands-on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to ther details of each project that we are involved with. Please feel free to contact us today!

New water Heater Install
Leaking Water heater
Maintenance
A/C Maintenances
Water Heater Install

+4

13 neighbors recently requested a quote
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FAQs for sump pump or interior foundation drains installation projects in Issaquah, WA

Most residential pumps draw approximately 1,300 to 2,900 watts when they first start, then settle at roughly 800 to 1,050 watts during normal operation. The exact number depends on the motor’s horsepower and how often the float switch tells the pump to run. Even at the high end, the electricity cost is minor compared with the expense of cleaning up a flooded basement.

Grab a ruler and an empty 18‑inch‑wide pit. During a steady rain, time how much the water rises in one minute. Multiply that depth (in inches) by 60 to calculate gallons per hour, then add 50% for safety. If the result tops 2,100 gallons per hour—about 35 gallons a minute—you’ll need a 3/4‑horsepower unit. Anything lower, and a 1/3- or 1/2-horsepower pump should do the trick.

Loud rattling, constant cycling, or shuddering vibrations are the pump’s way of telling you it’s on its last legs. Musty smells, higher electric bills, and visible rust are other red flags. If the unit is 10 years old or older and exhibits any of these symptoms, replace it before the next heavy rain turns your basement into a wading pool.

You don’t have to hire a licensed plumber, but you should still bring in someone who installs sump pumps for a living—whether that’s a plumber, basement‑waterproofing specialist, or experienced handyman. They know the local codes, can wire the pump safely, and will test the system before they leave. Skipping professional help might void the warranty and could leave you with a pump that fails when you need it most.

Not every basement needs a pump, but if your home sits in a floodplain, has a high water table, or has ever taken on water during a storm, a sump pump is inexpensive insurance. For basements that only struggle with condensation or the occasional damp spot, sealing cracks and improving drainage may be all that is needed.

The Issaquah, WA homeowners’ guide to sump pump or interior foundation drains installations

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