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TRUSTED BY SULLIVAN, NH HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon97
    Verified foundation drain installation services reviews

Top-Rated Foundation drain installation pros in Sullivan - Updated Nov 2026

Avatar for Northern Basement Systems
Northern Basement Systems
4.6(
21
)
Foundation Drainage - Install or Replace

Serving Sullivan, NH and surrounding areas

Approved

In business since 2010

Free estimates

Warranties offered

"Paul Swann evaluated our foundation problem and referred us to an engineer who provided a detailed repair plan. Unfortunately, the nature and scope of the proposed repair plan was outside the parameters of what Northern Basement System's themselves could provide. We appreciated their honesty and have been looking for a contractor to take on the project."
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+25

Response time1 day
3 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for AS Plumbing & Heating LLC
AS Plumbing & Heating LLC
5.0(
9
)
Sump Pump or Interior Foundation Drains - Install

Serving Sullivan, NH and surrounding areas

Approved

Free estimates

Credit card accepted

Offers commercial services

"I used ANGI for the first time and AS Plumbing and Heating contacted me promptly. They were able to provide services the same day. The service was exceptional and price was very reasonable. I would highly recommend this company and will use them in the future."
6 neighbors recently requested a quote
Avatar for Basement Solutions LLC
Basement Solutions LLC
New to Angi
Foundation Drainage - Install or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Sullivan, NH and surrounding areas

Approved

In business since 2025

Free estimates

Warranties offered

We pride our company on reliability, integrity and quality work. We are experts in our trade. We look forward to earning your business! We specialize in concrete crack repair and injections, basement waterproofing, sump pump installations, basement and egress window installations, crawlspace repair, moisture control, foundation repair and so much more.\nCall us today for a free estimate.

Egress
Egress
Egress
Sump Pump
Perimeter System

+4

11 neighbors recently requested a quote
Sonart Construction Corp.
2.3(
7
)
Concrete Foundation - Install

Serving Sullivan, NH and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

"I recently had my shingle roof replaced and I?m very happy with the results. The team was professional, punctual, and completed the job efficiently. The quality of the work is excellent, and the new roof looks great. They kept the work area clean and communicated well throughout the process. I would definitely recommend them to anyone needing a roof replacement."
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Foundation Drain Installation FAQs, answered by experts

French drains, sump pumps, and exterior waterproofing systems are common options. Choose one that best suits your property’s needs.

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.

Installation typically takes 1-2 days, depending on the scope and site preparation.

The difference between an ejector pump and a sump pump lies in their purpose and design—an ejector pump functions to remove liquid gray water and soft solid sewage waste from your home. If you have a laundry room or bathroom in your basement, an ejector pump for your sewage tank prevents sewage from backing up in your washing machine or bathroom’s drains.

A sump pump is designed to remove excess groundwater that may enter your home, either due to flooding or periods of heavy rain.

Yes, many contractors offer warranties for their work. Confirm terms before starting the project.

The Sullivan, NH homeowners’ guide to foundation drain installation services

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