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TRUSTED BY STRATHAM, NH HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon783
    Verified sump pump installation services reviews

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

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

Serving Stratham, 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
193 neighbors recently requested a quote
Recommended by56%of homeowners
Avatar for Maffei Plumbing and HVAC, LLC
Maffei Plumbing and HVAC, LLC
3.8(
12
)
Sump Pump - Repair or Replace

Serving Stratham, NH and surrounding areas

Approved (Corporate)

In business since 2010

Free estimates

Emergency services offered

At Maffei Plumbing and HVAC, LLC, we are committed to your comfort. With an experienced and qualified staff to provide quick service for any service needed. We can solve any problem with a friendly face. Give us a call for a free estimate.

Air Conditioning Installation
Rinnai Tankless
Water Filtration
Heating Systems
Heating Systems

+6

Response time1 day
62 neighbors recently requested a quote
Recommended by12%of homeowners
Avatar for Easy A's Plumbing & Heating, LLC
Easy A's Plumbing & Heating, LLC
4.5(
3
)
Sump Pump - Repair or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Stratham, NH and surrounding areas

Approved

In business since 2006

Free estimates

Warranties offered

Welcome to Easy A's Plumbing & Heating, LLC. We are excited to exceed your expectations. As experts, we will handle your needs with the high quality expertise that your home or business deserves. We offer competitive prices, and customer satisfaction is our number one priority. Call us now!

Under the camp
Attic
Camp
Camp
Camp

+68

Response time1 day
Recommended by100%of homeowners
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 Stratham, 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.
"
Additional Photos
Additional Photos
Additional Photos
Recommended by96%of homeowners
Avatar for Coy Plumbing & Heating
Coy Plumbing & Heating
5.0(
8
)
Sump Pump or Interior Foundation Drains - Install

Serving Stratham, 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 Stratham, 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

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.

Yes, it’s possible to install a sewage ejector pump outside rather than in a basement. However, there may be some extra steps involved, including running pipes from the inside to the outside of your home and digging (and re-filling) a hole for the basin. If you aren’t comfortable with this type of work, contact a plumbing pro to handle it for you.

Costs depend on pump type, labor rates, and the extent of repairs or installation needs.

Installing a battery backup for your sump pump is recommended, particularly if you live in an area with frequent power outages or severe rainstorms. A sump pump requires electricity to function, and a battery backup ensures it can continue to move water out of your home if the power goes out, providing crucial protection against flooding. Additionally, frequent power outages can create electrical surges that might damage the sump pump's motor. A battery backup system offers an additional layer of protection, ensuring your basement stays dry.

Yes, it’s normal (and beneficial) to have a small amount of water in the bottom of your sump pit. It shows that your system is collecting groundwater, rain, and excess water from around your property—just like it’s supposed to. However, if the sump pit is always full, you might have a leak or a faulty sump pump.

The Stratham, 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.