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  • Average homeowner rating star icon4.2
    Average homeowner rating
  • Verified reviews icon399
    Verified sump pump installation services reviews

Verified Reviews for Sump Pump Installation pros in Thomaston, CT

*The Angi rating for Sump Pump Installation companies in Thomaston, 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 Thomaston, 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 March 21, 2026

Find Sump pump installation pros in Thomaston

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 Thomaston, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Emergency services offered

"Our service person was Bill Fanning. He was excellent and explained everything in full detail! Bill was polite and respectful, and advised us on the best new sump pump to replace our non-working sump pump."
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
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Avatar for Groundworks
Groundworks
5.0(
12
)
Sump Pump or Interior Foundation Drains - InstallSump Pump - Repair or Replace

Serving Thomaston, 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

564 neighbors recently requested a quote
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Avatar for Connecticut Basement Systems, Inc.
Connecticut Basement Systems, Inc.
4.3(
223
)
Sump Pump or Interior Foundation Drains - InstallSump Pump - Repair or Replace

Serving Thomaston, CT and surrounding areas

Approved

In business since 1987

Free estimates

Warranties offered

"Excellent, very professional crew, installed a new sump pump quickly . Very personable, clear explanation of all work"
Finished basement in CT
Basement Finishing in CT
Basement Finishing in CT
Basement Finishing in CT
Basement Finishing in CT

+13

Response time10 hrs
187 neighbors recently requested a quote
Recommended by90%of homeowners
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Avatar for InstaPlumbing, LLC
InstaPlumbing, LLC
4.6(
228
)
Sump Pump - Repair or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Thomaston, CT and surrounding areas

Approved

In business since 2014

Emergency services offered

Warranties offered

"I was thoroughly pleased with the installation of my new kitchen faucet. What I liked is that they went above and beyond. There were other things in the house that needed attention and Kyle changed did a "wellness" check around the house, the bathrooms and found that the faucet to the outside of the house needed updating. I wills say that their price was a little high but for my peace of mind, it was worth it. Within 5 days of my work being done, I recommended them to a co-worker who needed a hot water heater repaired and they are satisfied with that work too. Yes, I will call on InstaPlumbing again."
Dryer Vent Inspection
Faucet Repair and Installation
Shower valve repair
Large and Small Drain Snaking
Apprentice Dylan

+1

Response time9 hrs
17 neighbors recently requested a quote
Recommended by93%of homeowners
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Avatar for A&A Waterproofing
A&A Waterproofing
5.0(
10
)
Sump Pump - Repair or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Thomaston, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2005

Free estimates

Emergency services offered

"Came to finish digging out trench to install footing drains around basement area of house. The guys finished the job in 1 day. So far no leaks into basement."
Response time2 days
Response rate88%
4 neighbors recently requested a quote
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Avatar for Premium Northeast Plumbing, LLC.
Premium Northeast Plumbing, LLC.
5.0(
6
)
Sump Pump or Interior Foundation Drains - Install

Serving Thomaston, CT and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

Local owner-operated business specializing in plumbing and heating. Owner has been in the plumbing field for 20 years. We pride ourselves in good communication, competitive pricing and professional service from start to finish.

Additional Photos
Recommended by100%of homeowners
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Avatar for HARP Home Services, LLC
HARP Home Services, LLC
3.7(
107
)
Sump Pump - Repair or Replace

Serving Thomaston, CT and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"Thetechnician was friendly and did a great job of servicing my boiler and mini splits"
replacing water heater
Tank Water Heater
14 neighbors recently requested a quote
Recommended by70%of homeowners
Request Quote
Avatar for Precision Landscaping and Excavating
Precision Landscaping and Excavating
4.2(
33
)
Sump Pump - Repair or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Thomaston, CT and surrounding areas

Approved

In business since 1994

Free estimates

Warranties offered

"Rob got back to me the same day I submitted the request and we came to agreement the same day as well."
Landscaping Projects
New Walkways
New Retaining Wall
Before and After Wall
Before

+52

Response time7 hrs
13 neighbors recently requested a quote
Recommended by88%of homeowners
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Sump Pump Installation questions, answered by experts

When a backflow valve fails, wastewater will flow back into your system, contaminating your drinking water. You’ll immediately notice backflow valve failure from a rotten smell and brown water coming from faucets. Get in contact with a septic pro or a plumber immediately if you suspect this has happened to you.

If you notice any new sump pump noises, such as persistent clanging or gurgling, then you likely have a sump pump problem on your hands. Foul odors coming from the pump can also indicate problems. Additionally, if your unit turns on but doesn't pump water, you might have to address electrical problems. In any of these cases, it's a good idea to hire a professional to address the issue.

If you have a self-cleaning washing machine but you’re still seeing lint, your water pump filter might be clogged. To clean it, you should unscrew the drain hose, then remove the water pump filter. From there, you can inspect it and clean it with warm water before replacing it. Check to be sure your washing machine is functioning by running a short cycle. 

A sump pump can be plugged into a regular, 110-volt outlet with three-prong openings, but it must have GFCI protections per the NEC, meaning you’ll need a GFCI outlet and circuit. Sump pumps require two outlet openings, one for the plug to the motor and one for the float switch.

Every three to four months, you should clean any dirt and debris off of your sump pump. You should also check the inlet screen (at the bottom of the pump) to make sure that it isn’t blocked. On top of that, you should deep clean your sump pump once per year—or hire a sump pump pro to do it for you.

The Thomaston, 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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