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TRUSTED BY WASHINGTON, CT HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon500
    Verified sump pump installation services reviews

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

Avatar for Budget Dry Waterproofing, Inc.
Budget Dry Waterproofing, Inc.
4.4(
240
)
Sump Pump or Interior Foundation Drains - InstallSump Pump - Repair or Replace

Serving Washington, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Emergency services offered

"Inspection of a previously installed sump pump system (primarily the sump pump). Inspection found that it seized up and wouldn't have functioned. Replacement made - and very fortunately - since when the pump is needed, it IS needed. It wouldn't have been good to have a flooded basement or have an upcoming flooded basement."
Drain at base of bilco
going up on the wall
finished wall area
completed
finished sump pump area

+37

Response time1 day
142 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Connecticut Basement Systems, Inc.
Connecticut Basement Systems, Inc.
4.3(
589
)
Sump Pump or Interior Foundation Drains - InstallSump Pump - Repair or Replace

Serving Washington, CT and surrounding areas

Approved

In business since 1987

Free estimates

Warranties offered

"Amazing. YES - you pay a lot - but they rocked, their solution rocked, and the installation was flawless. We just built a brand new home and the builder put in the cheapest 24" deep sump pump possible. We live in an area known for basement flooding so I did my research - had several companies come in - and settled on Connecticut Basement Systems. But my LORD - expensive. But now I know why. Their crew of 3 showed up and laid down plastic mat from our front door all the way down to the basement (at least 200'). It was over kill - but then I saw why. They had to dig a 36" deep pit and a wider hole - and brought up all the mess in buckets. NOT A SINGLE DROP ON THE BASEMENT FLOOR OR ONE THE WAY UP THE STAIRS. In fact - if you didn't see the high tech 3 pump sump pump they installed - you would have never known they were there. EVERYONE was super nice and answered all my many questions. I just spent a year in **** building a new home - and this was the best experience I've had with a contractor in 10 years. Pay the bucks - great product - great installation - great service."
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+12

162 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for InstaPlumbing, LLC
InstaPlumbing, LLC
4.6(
229
)
Sump Pump - Repair or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Washington, CT and surrounding areas

Approved

In business since 2014

Emergency services offered

Warranties offered

"I had several plumbing issues that needed to be addressed and with an older home I did expect there might be some problems. Matt had to install several new pipes in a difficult area to reach and did so efficiently. Very pleased with the customer service, quality of work and reasonable price. Should I need plumbing service again I would definitely contact them."
 Dryer Vent Inspection
 Faucet Repair and Installation
 Shower valve repair
 Large and Small Drain Snaking
Apprentice Dylan

+1

Response time9 hrs
26 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Economy Handy Carpenter, LLC
Economy Handy Carpenter, LLC
4.6(
332
)
Sump Pump - Repair or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Washington, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Emergency services offered

"Nixon, took the time to understand what I wanted, worked with me to find the proper solution within budget. I would recommend Nixon to anyone looking for work done!! FYI- This project was a bathroom makeover that involved, installing a vent, sheet rocking, painting, installing a shower door, installing a regular door and making everything look brand new!"
Response time10 hrs
79 neighbors recently requested a quote
Recommended by90%of homeowners
Premium Northeast Plumbing LLC
4.9(
4
)
Sump Pump - Repair or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Washington, CT and surrounding areas

Approved

In business since 2023

Credit card accepted

Customers say: Quality work

"I gutted the master bathroom and redid it, hired Premium Northeast Plumbing to do all the plumbing work. Andrew the owner is awesome, professional, knowledgeable, personable and punctual. I would strongly recommend this company for any plumbing work."
Response time1 day
8 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Benjamin Franklin Plumbing of Danbury
Benjamin Franklin Plumbing of Danbury
4.4(
7
)
Sump Pump or Interior Foundation Drains - Install

Serving Washington, CT and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

We take pride in serving the vibrant community of Danbury, and we understand the unique plumbing challenges that homeowners in this area may face. Whether it's addressing hard water issues prevalent in the region, performing sewer line inspections to prevent root intrusions, or offering eco-friendly plumbing solutions, our expertise is tailored to the specific needs of Danbury residents.\n\nTrust Benjamin Franklin Plumbing of Danbury to safeguard your pipes and preserve the integrity of your plumbing system. With our unwavering dedication to quality, reliability, and customer satisfaction, you can feel confident that your home is in capable hands.

Gallery
Gallery
59 neighbors recently requested a quote
Dirty Deeds Basement Waterproofing, Inc.
4.9(
60
)
Sump Pump - Repair or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Washington, CT and surrounding areas

In business since 2012

Free estimates

Credit card accepted

"Dean and his team are very professional. I had them install a sump pump in my basement that flooded Christmas morning. The day after dean came over and gave us a quote and was able to start work immediately. They were extremely fast and efficient. I would highly recommend their work and will use them in the future if needed."
Response time20 mins
Recommended by100%of homeowners
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Sump Pump Installation FAQs, answered by experts

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.

There are several indicators that your washing machine’s drain pump is bad, including incomplete cycles, water not draining, lack of spinning, a foul odor when the machine is running, and a loud grinding or buzzing noise when the pump is trying to move water down the drain.

There are several things you can do to maintain your sump pump and prevent sump pump problems. For instance, keeping a lid on your sump pit goes a long way in protecting your pump system from silt, sand, dirt, and other debris. When water drains from the outside, such as along your foundation, or with melting snow, water runoff often brings sediment with it. 

Also be wary of corrosion, particularly if your sump pump system is made of metal. Keep an eye out for rust and have it inspected regularly by a plumber or sump pump technician.

If your water pump fails, the first step is to turn off the power to the pump to prevent any further damage. Check for common issues such as clogs, electrical problems, or mechanical failures. If you cannot identify the problem, contact a professional who specializes in pump repairs. Prompt action can help minimize damage and repair costs.

Most sump pumps come with power cords that can be plugged into an outlet, but there are options that can be hardwired into a home’s electrical system. Either way, it’s smart to have a backup power supply in case the electricity goes out during a storm. That way, the sump pump can keep running and removing water from the sump pit.

The Washington, CT homeowners’ guide to sump pump installation services

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