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TRUSTED BY DARIEN, CT HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon794
    Verified sump pump installation services reviews

Verified Reviews for Sump Pump Installation pros in Darien, CT

*The Angi rating for Sump Pump Installation companies in Darien, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Sump Pump Installation needs.

*The HomeAdvisor rating for Sump Pump Installation companies in Darien, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Sump Pump Installation needs.

Last update on January 18, 2026

Find Sump pump installation pros in Darien

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 Darien, 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
162 neighbors recently requested a quote
Recommended by86%of homeowners
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Avatar for Brian Nisbet Plumbing and Heating
Brian Nisbet Plumbing and Heating
4.9(
378
)
Sump Pump - Repair or Replace

Serving Darien, CT and surrounding areas

Approved

Super Service Award Winner

In business since 1993

Credit card accepted

Customers say: True professional

"Great guy, great job. Corrected problem with ejector pump. Very happy and will definitely use Brian again for future projects"
Response time4 hrs
Response rate88%
Recommended by97%of homeowners
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Avatar for Groundworks
Groundworks
4.9(
13
)
Sump Pump or Interior Foundation Drains - Install

Serving Darien, CT and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 2025

Free estimates

Warranties offered

Groundworks is the North America's leading and fastest-growing foundation repair and water management solutions provider. Groundworks is a vertically integrated company with its own manufacturing operations and a world-class software solution, allowing us to serve our customers more effectively. From the first phone call to the annual maintenance offered, our customers have peace of mind knowing we're there with one mission to repair, protect and improve their home. For state licenses visit Groundworks.com/licensing

Foundation
Foundation
Foundation
Concrete
Concrete

+16

573 neighbors recently requested a quote
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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 Darien, CT and surrounding areas

Approved

In business since 1987

Free estimates

Warranties offered

"They got back to me too late and couldn't make an appointment for weeks. When I asked for a price for a sump pump, they came in way high."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+12

160 neighbors recently requested a quote
Recommended by90%of homeowners
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Avatar for The Builders & Cleaners
The Builders & Cleaners
4.9(
122
)
Sump Pump - Repair or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Darien, CT and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"I had this company install my kitchen cabinets they did an excellent job and a finished on time"
Dust out from the ductwork
Dust out from the ductwork
Clean vent
Clean vent
Dust in the return

+1831

Response time1 day
Response rate92%
Recommended by85%of homeowners
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Avatar for E and R Mechanical
E and R Mechanical
4.6(
258
)
Sump Pump - Repair or Replace

Serving Darien, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2018

Free estimates

Emergency services offered

"Good installation job. Prompt and professional. Charged an extra $50 over estimate for additional proposed install effort."
Water Heater
Water Heater
Water Heater
Water Heater
Water Heater

+6

Response time2 hrs
Response rate93%
176 neighbors recently requested a quote
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Avatar for Mike's Plumbing Services
Mike's Plumbing Services
4.3(
206
)
Sump Pump - Repair or Replace

Serving Darien, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2013

Free estimates

Emergency services offered

"Mike was great. He gave a very competitive qoute and took the time to explain the work that he would be doing. He was very professional and helpful from beginning to end. He installed a new Combi Boiler for us in 2 days now we have hot water and heat working perfectly once again. I would recommend Mike for any job."
Boderus high efficiency gas boiler
Boiler
Gas boiler
Shower installation
A/C Install

+5

Response time2 days
Recommended by95%of homeowners
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Avatar for Atomic Rooter Inc
Atomic Rooter Inc
4.5(
126
)
Sump Pump or Interior Foundation Drains - Install

Serving Darien, CT and surrounding areas

Approved

In business since 1977

Free estimates

Emergency services offered

"It went very well. Spoke to them one evening and by the next morning, they were here to install the water heater. I appreciated the quick service."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+6

Response time8 hrs
Response rate100%
1 neighbors recently requested a quote
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Avatar for Cassidy Plumbing and Heating, Inc
Cassidy Plumbing and Heating, Inc
4.5(
31
)
Sump Pump - Repair or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Darien, CT and surrounding areas

Approved

Super Service Award Winner

In business since 1992

Emergency services offered

Warranties offered

"Cassidy is professional, punctual, and clearly communicate. Thank you for guidance and repairing our corroded pipe. Thanks for installing the valve for the expansion tank too! I didn’t realize how much money that will save us in the future. ??"
Heating System
Heating System
Plumbing
The Team
Navien Water Heater

+3

Response time2 days
Response rate100%
13 neighbors recently requested a quote
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Avatar for Mr. Rooter of Southern Fairfield County
Mr. Rooter of Southern Fairfield County
4.2(
210
)
Sump Pump - Repair or Replace

Serving Darien, CT and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"I had a leaky old decaying bathroom faucet that needed to be replaced. I supplied the part. They were really quick on installing the faucet"
Commercial Case Installation
Back Flow On Irrigation
Back Flow On Irrigation
Repair of Septic Line
Repair of a Septic Line

+2

Response time2 hrs
1 neighbors recently requested a quote
Recommended by91%of homeowners
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Showing 1-10 of 196
Sump Pump Installation questions, answered by experts

Common problems include motor failure, clogged discharge lines, and float switch malfunctions. Regular maintenance prevents many issues.

First, you can try unplugging the two sump pump cords, one for the motor and one for the float switch, then plugging them back in to reset the sump pump. You can also reset the sump pump by turning it off and back on at the breaker. Many sump pumps have a reset button, which you can press and hold for a few seconds to reset the device.

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.

Several indicators suggest it's time for a sump pump replacement. A key factor is age; if the pump is over 10 years old, its lifespan is likely ending. Performance issues are also clear signs, such as the pump running constantly, cycling on and off frequently, making unusual noises or vibrations, or failing to function at all. A faulty or burnt-out motor is another definite sign a replacement is needed. Additionally, if you notice any signs of incorrect installation, the pump should be replaced. For a definitive diagnosis, a vetted plumber can assess the pump and confirm whether a replacement is necessary.

If your sump pump isn’t engaging, it might be clogged with dirt and debris. Check to see if the fitting lid is loose and has been letting debris in. Next, check the float and make sure it’s not obstructed by rust or gunk, which results from insufficient maintenance. Tangled wires or damaged switching systems can also stop your sump pump from engaging.

The Darien, 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.

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