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TRUSTED BY CORNISH, NH HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon29
    Verified foundation drain installation services reviews

Find Foundation drain installation pros in Cornish

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

Serving Cornish, 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
8 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Action Plumbing Heating And Air
Action Plumbing Heating And Air
4.9(
92
)
Sump Pump or Interior Foundation Drains - Install

Serving Cornish, NH and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"Mike was great. He took his time to explain what he was doing. I had a sediment filter installed and he replaced the pressure tank. He showed me how to check/replace filter as needed. He came by and diagnosed my problem without charging a service fee. He was very thorough and was not in a rush. His price was fair. He gave his professional opinion and did not try to "sell" me products that were not needed when I inquired about a water softener for my house. Great guys both him and his partner. I highly recommend giving them a call for your next plumbing job!"
Response time1 day
Response rate89%
21 neighbors recently requested a quote
Avatar for GM Mechanical LLC
GM Mechanical LLC
5.0(
9
)
Sump Pump or Interior Foundation Drains - Install

Serving Cornish, NH and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"Gage is as professional as they come! He works efficiently, his rates are great and he left the site clean, clearing out any debris lying around. I am actually having him back today to do some other plumbing for me. When you find a professional that works above and beyond you keep them knowing that all your future jobs will be handled thoroughly and correctly. In my opinion Gage is 2nd to none. He is a keeper!"
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+11

Response time1 day
Response rate100%
2 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 Cornish, 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

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

Serving Cornish, 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."
Avatar for We Do It All
We Do It All
5.0(
1
)
Sump Pump or Interior Foundation Drains - Install

Serving Cornish, NH and surrounding areas

Approved

Free estimates

Small jobs welcome

"Adam and his team did an amazing job on completing a backyard fence for my family. He was hardworking and detailed with the work. Kept me updated through every step of the way from the permit process, ordering materials and check-ins as the build was happening. Our fence is great! He also completed a custom railing and gate to attach to our existing deck. Will definitely be using we do it all again for future projects."
Avatar for Green Mountain Basement Solutions LLC
Green Mountain Basement Solutions LLC
4.0(
30
)
Concrete Foundation - InstallFoundation Drainage - Install or Replace

Serving Cornish, NH and surrounding areas

In business since 2007

Free estimates

Emergency services offered

"The work itself, the actual basement waterproofing appears to be working but our flood season hasn't come yet so, I'm reserving judgement. But, the way the work was done was a problem and the initial way that they got with the problem wasn't satisfactory. Eventually, months after work I did get some resolution but is wasn't a smooth transaction. We moved some of the finished portions of the basement to do their work and the way that that was handled was very sloppy and rushed, and very expensive to repair. And then, when the initial point of having somebody come and look at all my questions, it was not the owner, it was his foreman and it was not dealt within a professional manner. After 2 contacts, tried to explain what the problems were and has offered that they have an annual service to make sure that everything is working and there's a fee for that, though he offered 2 years of that with no cost, so that was a nice gesture. He tried to make up for the problems but like I said, there were problems."
Recommended by75%of homeowners
Showing 1-10 of 40
Foundation Drain Installation questions, answered by experts

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.

Ideally, your sump pump discharge should run down a natural downhill slope 10 to 20 feet away from your home’s foundation. However, if your property is naturally flat, that might not be an option. Instead, you may be able to discharge it into a neighborhood storm drain or a nearby creek or pond. If that’s not possible, consider burying it underground.

Yes, it is generally unhealthy and can be dangerous to live in a damp basement. The damp air can negatively affect your breathing and lungs, and the moisture promotes mold growth and pest infestations. Inhaling mold spores or waste particles from insects and rodents attracted to the moisture can be hazardous. This damp, moldy air can also circulate into your main living area. It is crucial to resolve any moisture problems and implement preventative measures before using your basement as a living space.

Yes, you can finish a basement that leaks, as long as you address the leak first. Before finishing a basement, you’ll need to repair any cracks in the walls and waterproof the basement to prevent future leaks. It’s much harder to clean up a water leak from a finished basement than an unfinished one, so preemptively addressing any leaking areas prevents expensive repairs in the future.

Several factors can impact the cost of waterproofing your basement. Some of the most common cost factors include:

  • Location

  • Square footage

  • Cause of the water leak

  • Type of foundation

  • Accessibility

  • Waterproofing method

  • Materials

  • Contractor experience and availability

  • Engineering reports, if needed

  • Structural and other repairs

  • Permits

The Cornish, 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.