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TRUSTED BY WARREN, NH HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon26
    Verified sump pump installation services reviews

Top-Rated Sump pump installation pros in Warren - Updated Nov 2026

Avatar for Groundworks
Groundworks
4.6(
26
)
Sump Pump or Interior Foundation Drains - Install

Serving Warren, NH and surrounding areas

Approved (Corporate)

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"
Foundation
Foundation
Foundation
Basement
Basement

+16

Response time12 hrs
173 neighbors recently requested a quote
Recommended by56%of homeowners
Avatar for Northern Basement Systems
Northern Basement Systems
4.4(
10
)
Sump Pump or Interior Foundation Drains - Install

Serving Warren, NH and surrounding areas

Approved

In business since 2010

Free estimates

Warranties offered

"They weren't able address part of my project which included fixing a bulkhead wall, and masonry. I wanted to have it all addressed project by project and discovered that there was more damage to one of the walls that needed fixing. As they weren't concrete 'masons', they wouldn't be able to fully address that before installing a drainage system. It was all within my budget. I just didn't want to have the drainage system installed and have it fail because due to the mortar crumbling. The person that went to my house spent a considerable amount of time. He was knowledgeable, courteous, and not pushy. It wasn't until I had another contractor come through that I realized that what I had initially planned on was not going to work. When I went to cancel, the person that handled my estimate was concerned that I was cancelling and that I was being given "bad advice" from another contractor. I thanked him for the time he spent, and the information that he gave me, and sent my cancellation form. I would have hired them had they been able to fully address the entire project(s)."
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 Basement Solutions LLC
Basement Solutions LLC
New to Angi
Sump Pump - Repair or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Warren, 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
Lake Sunapee Heating LLC
4.1(
30
)
Sump Pump - Repair or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Warren, 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.
"
Recommended by88%of homeowners
Avatar for Green Mountain Basement Solutions LLC
Green Mountain Basement Solutions LLC
4.0(
30
)
Sump Pump - Repair or Replace

Serving Warren, 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. 

"
Recommended by75%of homeowners
Avatar for New Hampshire Ductless LLC
New Hampshire Ductless LLC
4.3(
6
)
Sump Pump or Interior Foundation Drains - Install

Serving Warren, NH and surrounding areas

In business since 2021

Free estimates

Emergency services offered

Residential Heating and Cooling Company. Specializing in Mitsubishi Ductless Mini-Splits and all types of Heating and cooling systems, Water Heaters and Generator Installation and service . We also provide Propane, Natural Gas and Oil heating system Service and Maintenance!

Recommended by100%of homeowners
Showing 1-10 of 16
Sump Pump Installation FAQs, answered by experts

Yes, you can add a battery to your existing sump pump. There are batteries available that can be plugged into your existing system; however, most battery backups come as a complete system and act as a replacement for your existing sump pump.

No. Sump pumps have different capacities, which refers to the volume of water that they can remove. They also come in various horsepower ratings, which measure the size of the pump’s motor. For many homes, 1/3 horsepower is enough. But if you live in an area that floods often, you might need a more powerful model.

To maintain your sump pump, start by checking it every three to four months to ensure it’s in working order. Clear any debris from the pit because blockages can prevent the pump from operating efficiently. You should also test the pump by pouring a bucket of water into the pit. If it turns on automatically and drains the water, it’s functioning correctly. Inspect the discharge line for clogs, and ensure it directs water away from your home. Once a year, clean the pump itself, and consider having it professionally serviced for optimal performance.

If you notice any new sump pump noises, such as persistent clanging or gurgling, then you likely have a sump pump problem on your hands. Foul odors coming from the pump can also indicate problems. Additionally, if your unit turns on but doesn't pump water, you might have to address electrical problems. In any of these cases, it's a good idea to hire a professional to address the issue.

First, you can try unplugging the two sump pump cords, one for the motor and one for the float switch, then plugging them back in to reset the sump pump. You can also reset the sump pump by turning it off and back on at the breaker. Many sump pumps have a reset button, which you can press and hold for a few seconds to reset the device.

The Warren, NH homeowners’ guide to sump pump installation services

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