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TRUSTED BY DOVER, NH HOMEOWNERS

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    Average homeowner rating
  • Verified reviews icon633
    Verified sump pump installation services reviews

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

Avatar for Groundworks
Groundworks
4.6(
26
)
Sump Pump or Interior Foundation Drains - Install

Serving Dover, NH and surrounding areas

Approved (Corporate)

In business since 1996

Free estimates

Warranties offered

"Joe,James and Bobby did an excellent job replacing the sump pump And drains. My husband and I were so impressed with their abilities and how hard working they were. I would highly recommend Ground works Manchester to anyone who needs the same work done. Thanks to all the gentlemen for their professionalism and work ethic"
Foundation
Foundation
Foundation
Basement
Basement

+16

Response time12 hrs
173 neighbors recently requested a quote
Recommended by56%of homeowners
Avatar for Barrington Solutions Plumbing & Heating LLC
Barrington Solutions Plumbing & Heating LLC
4.9(
17
)
Sump Pump - Repair or Replace

Serving Dover, NH and surrounding areas

Approved

In business since 2024

Free estimates

Small jobs welcome

Barrington Solutions is the premier plumbing and HVAC specialist for new construction and major residential builds throughout New Hampshire's Lakes Region. Built on a foundation of elite technical expertise, strict project timelines, and clear communication, we partner with builders, contractors, and homeowners to engineer and install flawless mechanical systems from the ground up.While we provide full-service plumbing, high-efficiency heating, and advanced cooling solutions for existing properties, our true passion and specialty lie in rough-in plumbing, complete system design, and the seamless integration of modern heat pumps, boilers, and mini-splits for new homes. We treat every job site with total professionalism, ensuring your project stays on schedule, on budget, and up to code. Contact Barrington Solutions today to bring top-tier mechanical craftsmanship to your next build.

Granite Ridge
Brook hill development
Sanborton
Derry
2.5 bathroom modular

+39

41 neighbors recently requested a quote
Avatar for Derry Plumbing & Heating
Derry Plumbing & Heating
3.7(
43
)
Sump Pump - Repair or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Dover, NH and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"Been with another company for many years last time I call them for price to replace expansion tanks they gave price 859.00 thatà ¢à  à  s last time heard lot about Derry plumbing called Dave and they sent out a technician his name was Tyler very professional look over my unit told me had other issues with my system showing all possible that system was old he would only be taking my money to install the expansion tank and the unit is old and if fails this winter parts will be very hard to get note the unit been in house for 30 years have served my good so Tyler gave est that fair price to replace Dave gave me some options and was very professional so I set up appointment to have replaced thanks to Derry plumbing à ¢à ­à  à ¯à ¸à  à ¢à ­à  à ¯à ¸à  à ¢à ­à  à ¯à ¸à  à ¢à ­à  à ¯à ¸à  à ¢à ­à  à ¯à ¸à  à ¢à ­à  à ¯à ¸à  à ¢à ­à  à ¯à ¸à  à ¢à ­à  à ¯à ¸à  à ¢à ­à  à ¯à ¸à  à ¢à ­à  à ¯à ¸à  Thank you Paul Hickey Derry New Hampshire"
Rinnai install
Designer shower
Drain line
Showroom shower/tub stall
Faucet fixtures

+2

Response time10 hrs
Response rate98%
9 neighbors recently requested a quote
Avatar for Absolute Water System LLC
Absolute Water System LLC
4.7(
30
)
Sump Pump - Repair or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Dover, NH and surrounding areas

In business since 1981

Emergency services offered

Credit card accepted

"George and his team were extremely friendly and professional. This is a good group of people. Courteous and thoughtful, they were able to do a complete installation of both systems from scratch in about 6 hours.
The new radon remediation system (Bubble Up) has the added benefit of boosting the fixture pressure in the house to city level or better (60-75psi) as well as completely resolving the pH level of the water.
The cost was slightly lower than the other two quotes we received, partially due to the fact that Absolute offered a "multi-system" discount since two systems were going in at the same time.
If in your service area, I would highly recommend George Doumit of Absolute Water System.
"
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Recommended by96%of homeowners
Avatar for Coy Plumbing & Heating
Coy Plumbing & Heating
5.0(
8
)
Sump Pump or Interior Foundation Drains - Install

Serving Dover, NH and surrounding areas

In business since 2024

Free estimates

Emergency services offered

"We were very pleased with the communication and the outcome of our project. We have an old home with some older piping. Finding someone that works on steam boilers is tough. When they looked at the install, they explained what needed to happen clearly deand unrstandable."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+4

Response time2 days
Response rate100%
Recommended by87%of homeowners
Avatar for Forsythe Carpentry
Forsythe Carpentry
5.0(
42
)
Sump Pump or Interior Foundation Drains - Install

Serving Dover, NH and surrounding areas

In business since 2009

Free estimates

"We were so happy with the kitchen and master bathroom remodel that Todd did for us that we hired him again to remodel our downstairs bathroom. Todd gutted the old bathroom down to the studs and rebuilt the floor in order to remove water damaged boards from a prior leak as well as accommodate the new curb less shower pan. Todd was very thoughtful and had some good design & layout suggestions and helped us work thru other challenges like how to route/hide things we didn’t think of such as vent pipes. Todd found and installed new window trim and doors that also closely matched the rest of the house to help maintain consistency throughout. He installed new tile on the floor, shower walls, and subway tile halfway up all the remaining walls. All of the lines were perfect again and he did a fantastic job. We have received many compliments on the bathroom and are thrilled with how it turned out. Todd is a pleasure to work with and we highly recommend him and his work."
yanzinski kitchen
yanzinski kitchen
yanzinski kitchen
yanzinski kitchen
yanzinski kitchen

+50

Recommended by100%of homeowners
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Sump Pump Installation FAQs, answered by experts

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.

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.

A sump pump's lifespan is typically 7 to 10 years, though the general range can be anywhere from 5 to 15 years. The specific type of pump is a major factor: pedestal sump pumps last an average of 20 to 25 years, whereas submersible sump pumps last between 5 and 15 years. While pedestal pumps are less expensive to service, they are also louder and more prone to clogging.

Several other factors influence longevity, including the pump's quality, usage frequency, and maintenance schedule. A high-quality pump that is well-maintained in a dry climate may last for two decades, while a lower-quality, poorly maintained pump in an area with a high water table or frequent flooding may fail in six years or less.

Regular maintenance, including annual inspections and tuneups from a professional, can significantly extend the pump's life. It is time to consider a replacement if your sump pump runs constantly, cycles frequently, shows visible rust or corrosion, or trips a circuit breaker. As a preventative measure, many homeowners replace their pumps every eight years. It's also worth noting that a manufacturer's warranty can indicate expected lifespan, and some home insurance policies may not cover water damage from a pump that is past its recommended replacement date.

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.

Thankfully, you do have a few sump pump backup options in case it fails. One option is a battery-powered backup sump pump. Another option is using a portable backup generator as a power supply for your sump pump. Unlike a battery-powered backup which has limited power, a generator can run around the clock for as long as you need it. 

Or you can opt for a water-powered backup pump, which uses your home’s water supply as a source of power. However, this may not be the best option if you find your house frequently has low water pressure.

The Dover, NH homeowners’ guide to sump pump installation services

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