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TRUSTED BY GUILFORD, CT HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon1.5k+
    Verified sump pump installation services reviews

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

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 Guilford, CT and surrounding areas

Approved

In business since 1987

Free estimates

Warranties offered

"We moved into a lovely house with many unsuspected problems including a very wet basement back in Nov of 2017. I did much research to find the best outfit to fix the problem. Ct Basement was not the cheapest. In fact, they were the most expensive by far. But, they were also the yardstick every other company compared themselves to. The job cost us 19,300. And we had to wait weeks for the work to start. BUT, everything went perfectly. As soon as the old debris was removed, I was shocked to find that the garbage of the old walls and flooring they removed had black mold under it. And, with its removal, my wife’s athsma cleared up and left town! They did a beautiful job, were very polite and the new installed basement, new sump pump with back up battery, perimeter trench, flooring, etc., all is great. They put a lot of work and material in to do this job with very skilled workmen who worked very hard. Sometimes you get what you pay for."
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+12

166 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Roto-Rooter Plumbing & Water Cleanup - Bridgeport
Roto-Rooter Plumbing & Water Cleanup - Bridgeport
4.0(
179
)
Sump Pump - Repair or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Guilford, CT and surrounding areas

Approved (Corporate)

In business since 1935

Free estimates

Emergency services offered

When you need an emergency plumber or a drain cleaner, call Roto-Rooter Plumbing & Water Cleanup. Your fast & reliable plumber can fix any plumbing problem, including sump pumps, toilet repair, faucet repair, faucet replacement, garbage disposals, water heaters, bathtubs, showers, and outside faucets. Roto-Rooter is best known for drain cleaning & sewer cleaning. We fix drain clogs, clogged toilets or sinks, blockage of main sewer lines, slow draining shower and bathtub drains, sewer lines and leaking or burst pipes. We also specialize in water damage restoration & water cleanup services. We can fix and clean up your flooded basement too. Roto-Rooter is a 24-hour plumber near you and provides emergency service.

Recommended by82%of homeowners
Avatar for HARP Home Services LLC
HARP Home Services LLC
4.5(
488
)
Sump Pump - Repair or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Guilford, CT and surrounding areas

In business since 1992

Free estimates

Emergency services offered

"The representative came on time and listened carefully to my thoughts of a split ductless system. He suggested full house central air and showed me how it could be done, have ducts i stalled and cost less than a ductless system. His experience of over 20 years as a technician as well gave me a lot of confidence. He made a general proposal and came back in a few days for my convenience and I signed the contract. The duct crew finished in one day and were careful, explained things and left no mess. Then the ac was installed and tested in one day. Again polite, clearly communicated. Once the system started up late spring I am so glad I did this! No more noise from room ac, no shutting doors to keep one room cool. The humidity is normal and makes a huge positive difference. I highly recommend HARP. I switched my heating system to them as well after my experience with the AC i stall. Thank you HARP!"
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+9

Recommended by93%of homeowners
Avatar for Griswold Plumbing Services, LLC
Griswold Plumbing Services, LLC
4.6(
132
)
Sump Pump - Repair or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Guilford, CT and surrounding areas

In business since 2009

Emergency services offered

Credit card accepted

"I was very pleased with my experience with Griswold Plumbing, they installed a new shower faucet/showerhead and later a water treatment system. They were prompt, very professional, and courteous going the extra mile when needed. I highly recommend Griswold Plumbing and won't hesitate to call them again."
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+9

Recommended by93%of homeowners
Avatar for Sophisticated Rooter Services LLC.
Sophisticated Rooter Services LLC.
5.0(
25
)
Sump Pump or Interior Foundation Drains - Install

Serving Guilford, CT and surrounding areas

In business since 2019

Free estimates

Emergency services offered

"Great. They called to make appointment. Called to let me know they would be there in 15 minutes, Were on time, professional, efficient. Due to house and plumbing being 50+ years old, they did have to find a part at the supply store but came right back and finished the job. They advised us to get the lower shut off valve fixed in the future and sent us an estimate. Very pleased and would recommend them to my friends.$199"
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Recommended by100%of homeowners
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Sump Pump Installation FAQs, answered by experts

Yes, many providers offer warranties for new pumps and labor. Confirm terms before scheduling.

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

To maintain your sump pump, start by checking it every three to four months to ensure it’s in working order. Clear any debris from the pit because blockages can prevent the pump from operating efficiently. You should also test the pump by pouring a bucket of water into the pit. If it turns on automatically and drains the water, it’s functioning correctly. Inspect the discharge line for clogs, and ensure it directs water away from your home. Once a year, clean the pump itself, and consider having it professionally serviced for optimal performance.

Test regularly, clean the pump, and inspect the discharge line to ensure efficient operation.

Sewer ejector pumps need to be cleaned at least once a year by a professional. You shouldn’t attempt to clean it yourself because it can release sewer gasses that are toxic to humans and can be fatal. But to keep the system as clean as possible between professional inspection and cleaning services, be sure to only flush human waste and toilet paper. Avoid flushing items that can clog the system, like paper towels, grease, oil, or menstruation products.

The Guilford, 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.