
Serving Cornish, NH and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
"very pleasant and explained every step of the installation process."

*The Angi rating for Sump Pump Installation companies in Cornish, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Sump Pump Installation needs.
*The HomeAdvisor rating for Sump Pump Installation companies in Cornish, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Sump Pump Installation needs.
Last update on March 25, 2025

Serving Cornish, NH and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
"very pleasant and explained every step of the installation process."

Serving Cornish, NH and surrounding areas
Approved (Corporate)
In business since 1996
Free estimates
Warranties offered
"After meeting with Bob, and being shown and explained the project necessary to take care of our crawl space issue, I was convinced they were the guys for the job, They arrived when they said they would, and finished in the time estimated. A job well done and highly recommended !!!"





+16
Serving Cornish, NH and surrounding areas
Approved
In business since 1987
Free estimates
Emergency services offered
Gotme under pressure? LLC IS A Plumbing, Heating & Gasfitting, Drain Cleaning professional in your area. We will meet all of your plumbing needs. We take the pressure off all your plumbing issues. As our company is built off of honesty, integrity and leadership, this is what you can expect.

Serving Cornish, NH and surrounding areas
Approved
In business since 2021
Free estimates
Emergency services offered
"Gage has been excellent to work with. We will hire him any time we need something in the future. The work site is always clean, the new install always looks tidy. He has installed a water filter, fixed several leaks in old plumbing, replaced hose bibs, worked on our booster and expansion tank, replaced fixtures. It's always great work."





+11

Serving Cornish, NH and surrounding areas
Approved
In business since 2010
Free estimates
Warranties offered
"They were very prompt in getting here, did quality work, and they corrected the two problems that I had! I am very satisfied."





+9

Serving Cornish, NH and surrounding areas
Approved
In business since 1989
Free estimates
Warranties offered
"Excellent communication with scheduler. Worker shortage due to Covid complicated job, but they successfully installed basement sump system and plastic moisture reduction system. Also did a nice job cleaning up before they left."





+3

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."

Serving Cornish, NH and surrounding areas
In business since 1987
Free estimates
Emergency services offered
"I got a call from Mike right after placing the request. We set up a time to come out and fix the clog in my tub and he was early. Within 45 minutes he had the clogged drain fixed working properly and gave some professional advice on the drain system. I would highly recommend using them for all plumbing needs."
Serving Cornish, NH and surrounding areas
In business since 1985
Free estimates
Emergency services offered
"We were concerned with a couple of issues and they put our minds at ease. They were professional and efficient; George and Joe cleaned up after themselves, were very carefully to always use a drop cloth, and kept us in the loop on the installation. If we had one area we wished that Lake Sunapee Heating would improve it would be in the area of customer communication. However, we are more than satisfied with their work and would recommend this business.
Overall assessment: quality workmanship at a reasonable price.
"

Serving Cornish, NH and surrounding areas
In business since 2007
Free estimates
Emergency services offered
"Mike and his team did a solid job for us. The previous owners had punted on installing
the correct solution and lied about water entering the home. When we found ¼ inch of water in our back
room basement we called GMBS out and they were there within hours to do an
estimate.
This was one of the rainiest summers in recent memory and
GMBS had a ton of business so we had to wait, but it was worth the wait. They finished the job in under 3 days and the
work looks great.
They installed a brand new sump pump, the old one the previous owners had
installed was done poorly, was inefficient to the task and sounded like a jet
engine. They installed a sub floor
perimeter drainage system and vapor sealed our walls.
They were quick, professional, courteous and were easy to
work with. We paid up front and part of
the job was over estimated and they got a refund to us when we needed it.
I have more work I need done in the future and I plan on
using Mike and his team.
"
From average costs to expert advice, get all the answers you need to get your job done.

Discover how much sump pump installation costs, including average prices, key cost factors, and tips to save on your basement waterproofing project.

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