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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

Find Foundation drain installation pros in Sullivan

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
7 neighbors recently requested a quote
Recommended by88%of homeowners
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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
196 neighbors recently requested a quote
Recommended by56%of homeowners
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Avatar for Broman Contracting LLC
Broman Contracting LLC
5.0(
13
)
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

2 neighbors recently requested a quote
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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

13 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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Showing 1-10 of 57
Foundation Drain Installation questions, answered by experts

Some questions you should ask before hiring a plumber or drainage installation company include:

  • Are you licensed and insured?

  • Do you have any customer testimonials I can read?

  • How do you handle unforeseen challenges that occur during the job?

  • Is your fee a flat rate or hourly?

  • Do you do the work, or do you have subcontractors?

  • Is everyone who does the work licensed and qualified plumbers?

  • Is cleanup included in the quote?

  • Do you offer a warranty or guarantee on your work?

Sump pumps remove excess water from the lowest point of your home, which prevents flooding. When a sump pit fills with water, a sump pump pushes that water outside of the basin and into an exterior discharge pipe. From there, the water flows away from your home, so it doesn’t damage your foundation.

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.

A sewage ejector pump is necessary if you have any plumbing fixtures, such as a bathroom, laundry room, or sink, located below the level of your home's main sewer line. Standard plumbing relies on gravity to drain wastewater and solid waste into the municipal sewer system or a septic tank. For fixtures below this level, like those in a basement, gravity cannot move the waste upward. The ejector pump provides the force needed to pump the sewage up to the main line. Without one, wastewater from below-ground fixtures would back up, potentially causing a sewage overflow and flooding. If all of your plumbing is on the main floor or higher, gravity is sufficient and an ejector pump is not needed.

Since basements are prone to water and moisture issues and the resulting problems can be expensive to repair and potentially damaging to your home, basement waterproofing is almost always worthwhile. Even for homes that haven’t experienced water infiltration, waterproofing the basement is insurance against facing expensive repair bills in the future. All basements will leak at some point, so fixing drainage issues and taking steps to prevent moisture and water infiltration is wise.

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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