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  • 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 Nelson - Updated Nov 2026

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

Serving Nelson, 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
2 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for AS Plumbing & Heating LLC
AS Plumbing & Heating LLC
5.0(
10
)
Sump Pump or Interior Foundation Drains - Install

Serving Nelson, 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 Nelson, 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

10 neighbors recently requested a quote
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Foundation Drain Installation FAQs, answered by experts

A sump pump should be placed at least three feet deep in a pit. The rim of the sump pump basin should be level with your basement floor. If you find your pit is too deep, you can fill the bottom with gravel until the rim of the sump pump is flush with the floor.

DIY is possible for small systems like French drains. Professional installation ensures proper grading and long-term effectiveness.

Yes, many modern water pumps are designed with energy efficiency in mind. Look for pumps with high efficiency ratings or those with an Energy Star certification. These pumps consume less power and can reduce your utility bills. Additionally, variable-speed pumps are more efficient since they can adjust the flow based on demand, providing significant savings over time.

A small sump pump running infrequently uses an average of 10 kilowatt-hours (kWh) of electricity per month. The average cost for electricity is $0.171 per kWh. The size and use frequency affect how much electricity it uses. Sump pumps average one-third to one horsepower (hp) motors. One hp is equal to 745.7 watts. Watts multiplied by the time your pump is running divided by 1,000 equals your average kWh. Multiply kWh by your average cost of electricity. In areas with high rain or a marsh basin, the average cost can be as high as $15-$25 a month.

The cost to install a new sump pump, including materials and professional labor, typically ranges from $1,000 to $3,000. The average cost is often cited between $1,200 and $2,500. Several factors influence the final price, including the type of pump, the complexity of the drainage system, and the installation location. For instance, installing a sump pump in a basement may cost around $1,200, while a more complex installation in a crawl space can cost an average of $3,900. It is important to hire a licensed professional for the installation to ensure quality work, which can impact the pump's lifespan and warranty. Note that these costs are for a new installation; replacing an existing unit is less expensive, typically costing $308 to $748.

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

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