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TRUSTED BY GREENWICH, CT HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon862
    Verified sump pump installation services reviews

Top-Rated Sump pump installation pros in Greenwich - 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 Greenwich, 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
143 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for TC' s Plumbing & Heating LLC
TC' s Plumbing & Heating LLC
4.8(
230
)
Sump Pump or Interior Foundation Drains - Install

Serving Greenwich, CT and surrounding areas

Approved

In business since 1997

Free estimates

Warranties offered

"They called back immediately from my initial message. They came first thing in the morning and by noon my new water heater was installed and up and running. They went over and beyond what I have ever experienced with other plumbing technicians.They explained everything up front and I found them to be highly knowledgeable. I would highly recommend this company and they have acquired a new lifelong customer based on their performance dealing with my situation."
Additional Photos
Additional Photos
Additional Photos
Recommended by98%of homeowners
Avatar for Groundworks
Groundworks
4.9(
13
)
Sump Pump or Interior Foundation Drains - Install

Serving Greenwich, 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

385 neighbors recently requested a quote
Avatar for Advanced Professional Management, LLC
Advanced Professional Management, LLC
4.2(
939
)
Sump Pump or Interior Foundation Drains - Install

Serving Greenwich, CT and surrounding areas

Approved

In business since 1999

Emergency services offered

Warranties offered

"I had their technician (Julian) hook up & tested my pool pump, also fix a clogged toilet. Julian was very thorough and explained everything that needed to be done through the entire job. Couldn’t be more happier with their service, I do find their price is on the high side, however I would definitely recommend & hire them again as not all plumbers or even pool company would come & hook up existing pump"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+33

Response time11 hrs
Response rate100%
8 neighbors recently requested a quote
Avatar for Cassidy Plumbing and Heating, Inc
Cassidy Plumbing and Heating, Inc
4.5(
32
)
Sump Pump - Repair or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Greenwich, 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%
8 neighbors recently requested a quote
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Sump Pump Installation FAQs, answered by experts

A sump pump battery backup can typically run for 6 to 24 hours. The factors that affect its runtime include the battery capacity and pump usage. 

When purchasing your backup system, take these factors into consideration to determine which system is best for your home. If you live in an area with frequent and long-lasting power outages, consider a longer-lasting backup battery.

Repairs typically take 1-2 hours, while replacements, depending on accessibility, may require up to 4 hours.

You shouldn’t shower while a sump pump isn’t working. Although household wastewater isn’t supposed to go into the sump pit, it’s best to wait to shower until your sump pump is running properly and able to move excess water out of the basement. If you need to shower when the sump pump isn’t working, aim for a short shower.

A water pressure booster doesn't require special maintenance. Like any house system, inspections should be a regular part of your annual schedule. Check for leaks, faulty valves, pressure loss, and mineral build-up. Pressure loss could be a result of mineral build-up, and you can descale the system with a vinegar and water solution.

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.

The Greenwich, 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.