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Find Sump pump or interior foundation drains installers in Gilmanton

Avatar for Action Plumbing Heating And Air
Action Plumbing Heating And Air
4.9(
83
)

Serving Gilmanton, NH and surrounding areas

Angi Approved

In business since 2022

Free estimates

Emergency services offered

"Zach from action was great, he was very professional, friendly and efficient, and did great work. I would 100% use action again based on my experience with Zach and the quality of work."
Response time1 day
Response rate87%
14 neighbors recently requested a quote
Avatar for Groundworks
Groundworks
4.9(
21
)

Serving Gilmanton, NH and surrounding areas

Angi Approved

In business since 1996

Free estimates

Warranties offered

"Joe,James and Bobby did an excellent job replacing the sump pump And drains. My husband and I were so impressed with their abilities and how hard working they were. I would highly recommend Ground works Manchester to anyone who needs the same work done. Thanks to all the gentlemen for their professionalism and work ethic"
Services
Services
Services
Services
Services

+33

Response time12 hrs
64 neighbors recently requested a quote
Recommended by61%of homeowners
Avatar for Northern Basement Systems
Northern Basement Systems
4.3(
7
)

Serving Gilmanton, NH and surrounding areas

Angi Approved

In business since 2010

Free estimates

Warranties offered

"I strongly caution anyone considering doing business with this company. I gave them a deposit of $4,428.65, and when I canceled a week later they kept almost $900 of it even though my service was not for another 6 weeks. You do sign a very simple, clearly stated document that says: should you cancel beyond three business days, you understand your deposit is non-refundable. Northern Basements may choose to refund depending on cancellation circumstances I fully acknowledge that I canceled a few days outside that window, but I hoped an honest company that cares about customers and referrals would choose to provide a full refund. I am a sucker for hoping that. They chose to risk my impression, referral, and review for $885.53. If nothing else comes out of this, I hope everyone reading at least goes in knowing that this statement on their contract is a real threat and your deposit is a hostage. Even Air b and bs offer full refunds on deposits within just a few days of their arrival date. 3 days to cancel with service not scheduled for 6 weeks out, Come on man. No materials were used. No service workers time was taken. The manager justified the 20% withholding as credit card fees, restocking fees, time and resources for the estimate, and administrative fees. I wholly accepted responsibility for the credit card fees and time of Paul, the gentleman who performed the assessment, and I offered to settle at 10%. I still believe any reputable company would have provided a full refund at this point in a project, or at most deduct the credit card fees because nothing more went into this beyond what would have normally been a free estimate. The further arguments the manager made for the additional fees were the scheduling of their team and the allocation of materials for my project. Complete nonsense, especially when the project was not set for 6 weeks away. Because they had my deposit hostage, they had control over how much they decided they wanted to keep, it was completely arbitrary, and they kept almost $900 of my money without providing anything. If they wanted to cover their credit card transaction fees, fine, at most 6%, but the rest is absolute robbery. The only solace I can find in this loss of almost $900 now is that I did not spend another $13,000 with them. I tried to call Paul after speaking with the manager to ask if he could do me a favor and try to reason with the manager on my behalf because he seemed nice enough. No answer. No callback. I will never seek out their services again and I will actively discourage others from doing so but, based on my experience, I expect they do not care."
Gap between chimney and home
Crew at work
The piers
Chimney after piers are installed
Smart Jacks

+9

Response time2 days
4 neighbors recently requested a quote
Recommended by71%of homeowners
Avatar for Meredith Plumbing & Heating
Meredith Plumbing & Heating
4.4(
13
)

Serving Gilmanton, NH and surrounding areas

Angi Approved

In business since 1985

Free estimates

Emergency services offered

"Install was scheduled for 9:30 EST 12/22/2025. At approx10:30am called to inquire as to his status. He told me he was 10 mins away. He arrived an hour later. He was somewhat agitated on arrival. We together unboxed the new faucet and he examined the existing functional kitchen faucet. The system in place was result of new construction in 2017.He raised no concerns about new product quality or concerns about getting the job done. He was at the job approx. 2 hours and I was present close by throughout. After approx. one hour he became more and more agitated. He asked me to show him the basement as he "needed more length" to hook up the product. No changes took place in the basement. Shortly thereafter he announced the new product was "cheap" and suddenly "fell apart". He became agitated and told me the only option was to return the product and that he now had to replace the previous existing faucet. At this time on my exam noted one of the water hoses on the new product was no longer functional. There was a short extension on the other hose which I commented seemed to imply he had realized the new product hoses were too short. He quickly took off that extension and put it in his pocket, reiterated the new product was "junk". When done he asked me for 500$ for the two hours work and left. On my further exam of the new faucet after he left was clear he had been trying to stretch these short hoses to the point of damaging beyond repair both (please see pics) hoses. It was obvious all of this could have been avoided by adding extensions from the start. The under sink area would have easily accommodated this. In retrospect I am sorry I paid him. But, I am elderly, live on a rural dead end dirt road and just needed him out of the house. It is why I use a company like Angi to hopefully have some screening responsibility. Follow up communication has been difficult during the holidays. Ultimately I did speak with him. He continued to be dismissive and challenged me to seek legal recourse. I questioned his agitation that day. I asked if he had been drinking (both my parents were heavy drinkers and I regret not following that suspicion that day). He did not deny just replying "If you are so smart why didn't you do the job yourself". I told him that is why I strive to employ reputable contractors, always."
Additional Photos
8 neighbors recently requested a quote
Recommended by84%of homeowners
FAQs for sump pump or interior foundation drains installation projects in Gilmanton, NH

Most residential pumps draw approximately 1,300 to 2,900 watts when they first start, then settle at roughly 800 to 1,050 watts during normal operation. The exact number depends on the motor’s horsepower and how often the float switch tells the pump to run. Even at the high end, the electricity cost is minor compared with the expense of cleaning up a flooded basement.

Grab a ruler and an empty 18‑inch‑wide pit. During a steady rain, time how much the water rises in one minute. Multiply that depth (in inches) by 60 to calculate gallons per hour, then add 50% for safety. If the result tops 2,100 gallons per hour—about 35 gallons a minute—you’ll need a 3/4‑horsepower unit. Anything lower, and a 1/3- or 1/2-horsepower pump should do the trick.

Loud rattling, constant cycling, or shuddering vibrations are the pump’s way of telling you it’s on its last legs. Musty smells, higher electric bills, and visible rust are other red flags. If the unit is 10 years old or older and exhibits any of these symptoms, replace it before the next heavy rain turns your basement into a wading pool.

You don’t have to hire a licensed plumber, but you should still bring in someone who installs sump pumps for a living—whether that’s a plumber, basement‑waterproofing specialist, or experienced handyman. They know the local codes, can wire the pump safely, and will test the system before they leave. Skipping professional help might void the warranty and could leave you with a pump that fails when you need it most.

Not every basement needs a pump, but if your home sits in a floodplain, has a high water table, or has ever taken on water during a storm, a sump pump is inexpensive insurance. For basements that only struggle with condensation or the occasional damp spot, sealing cracks and improving drainage may be all that is needed.

The Gilmanton, NH homeowners’ guide to sump pump or interior foundation drains installations

From average costs to expert advice, get all the answers you need to get your job done.