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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

Verified Reviews for Foundation Drain Installation pros in Sullivan, NH

*The Angi rating for Foundation Drain Installation companies in Sullivan, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Foundation Drain Installation needs.

*The HomeAdvisor rating for Foundation Drain Installation companies in Sullivan, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Foundation Drain Installation needs.

Last update on March 31, 2026

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."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+25

Response time1 day
5 neighbors recently requested a quote
Recommended by88%of homeowners
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Avatar for Broman Contracting LLC
Broman Contracting LLC
5.0(
14
)
Foundation Drainage - Install or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Sullivan, 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

1 neighbors recently requested a quote
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Avatar for Groundworks
Groundworks
4.6(
26
)
Sump Pump or Interior Foundation Drains - Install

Serving Sullivan, NH and surrounding areas

Approved (Corporate)

In business since 1996

Free estimates

Warranties offered

"Everything completed as rescheduled after a weather delay. The crews arrived on time, did the project (2 foundation Cracks, and cleaned up"
Foundation
Foundation
Foundation
Basement
Basement

+16

Response time12 hrs
193 neighbors recently requested a quote
Recommended by56%of homeowners
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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
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Avatar for Easy A's Plumbing & Heating, LLC
Easy A's Plumbing & Heating, LLC
4.5(
3
)
Sump Pump or Interior Foundation Drains - Install

Serving Sullivan, NH and surrounding areas

Approved

In business since 2006

Free estimates

Warranties offered

"I hired them to replace a sluggish toilet. Andrew took my call immediately and set a schedule for the next day. He came right on time and did a great job. I will definitely call them again."
Under the camp
Attic
Camp
Camp
Camp

+68

Response time1 day
Recommended by100%of homeowners
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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

12 neighbors recently requested a quote
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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

Walkout basements cost more than other kinds of basements, and can also increase your risk of leaks as well as a loss of insulation, leading to higher heating and cooling costs. Improperly installed walkout basements may lead to structural issues with your foundation, so ensure you’re working with a contractor who has extensive experience with this kind of basement.

Yes, you can add a battery to your existing sump pump. There are batteries available that can be plugged into your existing system; however, most battery backups come as a complete system and act as a replacement for your existing sump pump.

Yes, most contractors and installers offer warranties covering materials, parts, labor, and workmanship for their installation services. It is important to confirm the specific terms and coverage details with your provider before starting the project.

The least expensive basement waterproofing methods include grading soil away from your home, installing downspout extenders on your gutter system, and applying a waterproof paint on the interior of the foundation walls. Installing a French drain is a relatively inexpensive method if you do the work yourself, although it’s labor-intensive and can be challenging to install properly.

Not all window wells have a formal drain, but they all require a method for water to flow away from the window. Some wells are connected to an interior or exterior drain tile, which is the most effective solution. Others rely on a deep layer of gravel or crushed stone that allows water to filter down into the soil.

However, if a window well lacks a proper drainage system, it can lead to basement seepage, costly water damage, mold growth, and potential foundation damage. This is especially true in areas with heavy rainfall or expansive soil.

If your window well doesn't have a drain or is not draining quickly enough, you have a few options. For gravel-based systems, the stone may have compacted and needs to be improved. For a more robust solution, you can hire a plumber or window installer to connect the well to a drainage system. This can also be a DIY project using a shovel or auger.

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.

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