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Find Sump pump or interior foundation drains installers in Dover

Avatar for Groundworks
Groundworks
4.6(
26
)

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
194 neighbors recently requested a quote
Recommended by56%of homeowners
Avatar for Derry Plumbing & Heating
Derry Plumbing & Heating
3.7(
43
)

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 time9 hrs
Response rate86%
5 neighbors recently requested a quote
Avatar for Broman Contracting LLC
Broman Contracting LLC
5.0(
3
)

Serving Dover, NH and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"Lorenzo from Broman's called me and set up a time and date to seal our driveway and walkway. They showed up on time were professional and completed the job to my satisfaction. I would highly recommend them."
Before
Excavation
Backfill
Basement Waterproofing
Finished Concrete

+2

5 neighbors recently requested a quote
Avatar for Absolute Water System LLC
Absolute Water System LLC
4.7(
30
)

Serving Dover, NH and surrounding areas

In business since 1981

Emergency services offered

Credit card accepted

"They were the first to give us a quote and were able to come out as soon as we needed them to. Installation was smooth, and they have been good at following up to make sure the system is working. Because our radon is still slightly high, they are doing another radon test and will follow up if it comes back high yet again. We would definitely recommend them to others!"
Additional Photos
Additional Photos
Additional Photos
Recommended by96%of homeowners
Avatar for Forsythe Carpentry
Forsythe Carpentry
5.0(
42
)

Serving Dover, NH and surrounding areas

In business since 2009

Free estimates

"Todd was excellent from the first day he came to look at the job until the completion of the bathroom.  Lots of attention to the details.  As this is our only bathroom, we needed to be away from the house while the renovation was completed.  Todd, and his team - plumber & electrician worked extremely well together to meet the time crunch so when we returned a week later the bathroom had functional plumbing and the final details were finished up within a few days.  The tile looks great and the finish work is very nice!  I would recommend Todd in a minute!  He was very professional, worked very neatly!  and went over and above the call of duty when we realized I had ordered the wrong size shower rod.  He made an extra trip to get a temporary one installed so the shower was available for use when we got home. Very nice job, best experience I have had with a contractor, ever!"
yanzinski kitchen
yanzinski kitchen
yanzinski kitchen
yanzinski kitchen
yanzinski kitchen

+50

Recommended by100%of homeowners
Avatar for Arta Foundation Repair
Arta Foundation Repair
4.6(
13
)

Serving Dover, NH and surrounding areas

In business since 2019

Free estimates

Warranties offered

"Fantastic experience!! Stavos was very quick and thorough with his inspection of my foundation! Gave me a very knowledgeable and easy guide on how to go repair my foundation! Highly recommended calling this company for your foundation repairs or just a trustworthy inspection!"
cement block foundation wall
cement block foundation wall
cement block foundation wall
cement block foundation wall
cement block foundation wall

+60

Response time1 day
Response rate91%
Recommended by91%of homeowners
Showing 1-10 of 41
FAQs for sump pump or interior foundation drains installation projects in Dover, NH

Most residential pumps draw approximately 1,300 to 2,900 watts when they first start, then settle at roughly 800 to 1,050 watts during normal operation. The exact number depends on the motor’s horsepower and how often the float switch tells the pump to run. Even at the high end, the electricity cost is minor compared with the expense of cleaning up a flooded basement.

Grab a ruler and an empty 18‑inch‑wide pit. During a steady rain, time how much the water rises in one minute. Multiply that depth (in inches) by 60 to calculate gallons per hour, then add 50% for safety. If the result tops 2,100 gallons per hour—about 35 gallons a minute—you’ll need a 3/4‑horsepower unit. Anything lower, and a 1/3- or 1/2-horsepower pump should do the trick.

Loud rattling, constant cycling, or shuddering vibrations are the pump’s way of telling you it’s on its last legs. Musty smells, higher electric bills, and visible rust are other red flags. If the unit is 10 years old or older and exhibits any of these symptoms, replace it before the next heavy rain turns your basement into a wading pool.

You don’t have to hire a licensed plumber, but you should still bring in someone who installs sump pumps for a living—whether that’s a plumber, basement‑waterproofing specialist, or experienced handyman. They know the local codes, can wire the pump safely, and will test the system before they leave. Skipping professional help might void the warranty and could leave you with a pump that fails when you need it most.

Not every basement needs a pump, but if your home sits in a floodplain, has a high water table, or has ever taken on water during a storm, a sump pump is inexpensive insurance. For basements that only struggle with condensation or the occasional damp spot, sealing cracks and improving drainage may be all that is needed.

The Dover, NH homeowners’ guide to sump pump or interior foundation drains installations

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