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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon583
    Verified sump pump installation services reviews

Verified Reviews for Sump Pump Installation pros in Londonderry, NH

*The Angi rating for Sump Pump Installation companies in Londonderry, 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 Londonderry, 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 November 06, 2025

Find Sump pump installation pros in Londonderry

Merrimack Valley Plumbing & Home Services

72 S. Kimball St.
New on AngiNew on Angi
•Approved Pro

Merrimack Valley Plumbing & Home Services

72 S. Kimball St.
New on AngiNew on Angi
•Approved Pro
154 local quotes requested
8 years of experience

Merrimack Valley Plumbing, LLC is a locally-owned and operated company committed to providing fast, affordable, and high-quality Plumbing. We offer HVAC repair, installation, and replacement services. We specialize in heating controls and simplifying complicated plumbing and HVAC systems to make them user-friendly. We strive to find solutions that fit everyone’s comfort needs, from construction projects to air conditioner replacement.

Merrimack Valley Plumbing, LLC is a locally-owned and operated company committed to providing fast, affordable, and high-quality Plumbing. We offer HVAC repair, installation, and replacement services. We specialize in heating controls and simplifying complicated plumbing and HVAC systems to make them user-friendly. We strive to find solutions that fit everyone’s comfort needs, from construction projects to air conditioner replacement.

Avatar for Sila Heating, Cooling, Plumbing and Electrical

Sila Heating, Cooling, Plumbing and Electrical

12 Manison St
4.54(
5,209
)
•Approved Pro

Sila Heating, Cooling, Plumbing and Electrical

12 Manison St
4.54(
5,209
)
•Approved Pro
Customers say: Super punctual
652 local quotes requested
36 years of experience

Live Your Most Comfortable Life with a Company You Trust. We offer Same Day Service and Next Day Installation! Sila has been the center of delighting homeowners since 1989, with our team of engineers, certified technicians, and system designers that are proud to deliver the highest level of expertise in the HVAC industry. Whether it’s a repair, replacement, installation, or service, we have an unwavering commitment to keeping you and your family comfortable and safe — season after season. We guarantee satisfaction and are proud to have earned over 7,000 “A” ratings on Angie’s List and its prestigious Super Service Award!

"Charged $2,000 (that's right, $2,000!) to install a new sprayer faucet and soap dispenser in Boston. $1,500 went to labor, which took less than 2 hours. I'm sorry, but $750/hr is outrageous. I did pay it because I wanted to expedite solving the problem for the tenants, but I now regret as their dishwasher is not working and I suspect the plumber failed to reconnect everything probably."

Joel R on August 2025

Live Your Most Comfortable Life with a Company You Trust. We offer Same Day Service and Next Day Installation! Sila has been the center of delighting homeowners since 1989, with our team of engineers, certified technicians, and system designers that are proud to deliver the highest level of expertise in the HVAC industry. Whether it’s a repair, replacement, installation, or service, we have an unwavering commitment to keeping you and your family comfortable and safe — season after season. We guarantee satisfaction and are proud to have earned over 7,000 “A” ratings on Angie’s List and its prestigious Super Service Award!

"Charged $2,000 (that's right, $2,000!) to install a new sprayer faucet and soap dispenser in Boston. $1,500 went to labor, which took less than 2 hours. I'm sorry, but $750/hr is outrageous. I did pay it because I wanted to expedite solving the problem for the tenants, but I now regret as their dishwasher is not working and I suspect the plumber failed to reconnect everything probably."

Joel R on August 2025

Avatar for Ardito & Sons, LLC

Ardito & Sons, LLC

P.O. Box 17
5.00(
27
)
•Approved Pro

Ardito & Sons, LLC

P.O. Box 17
5.00(
27
)
•Approved Pro
63 local quotes requested
1 years of experience

Ardito & Sons is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business. We also do not work on Town Water Systems. Only Well Systems We offer a Veteran Discount.

"Couldn’t ask for a better experience when dealing with a major home issue. Friendly and professional service. Highly recommended."

Francis K on October 2025

Ardito & Sons is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business. We also do not work on Town Water Systems. Only Well Systems We offer a Veteran Discount.

"Couldn’t ask for a better experience when dealing with a major home issue. Friendly and professional service. Highly recommended."

Francis K on October 2025

Avatar for Soulios Heating & Cooling, LLC

Soulios Heating & Cooling, LLC

14 Greystone Terrace
4.96(
14
)
•Approved Pro

Soulios Heating & Cooling, LLC

14 Greystone Terrace
4.96(
14
)
•Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
6 years of experience

Queen City HVAC LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"Wonderful service from Adam! My water heater was struggling to keep up with my wife?s long showers - which by the way she heats them up hot as hell! ? Besides the point, Adam recommended sizing up the water heater in order to keep up with the demands of some crazy hot water. Incredibly fast installation process and Adam was really friendly. I would definitely recommend him to all my friends who are looking for a plumber. You should certainly give him a call!"

Aubrey T on April 2025

Queen City HVAC LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"Wonderful service from Adam! My water heater was struggling to keep up with my wife?s long showers - which by the way she heats them up hot as hell! ? Besides the point, Adam recommended sizing up the water heater in order to keep up with the demands of some crazy hot water. Incredibly fast installation process and Adam was really friendly. I would definitely recommend him to all my friends who are looking for a plumber. You should certainly give him a call!"

Aubrey T on April 2025

Avatar for ACQ Home Improvement

ACQ Home Improvement

129 Edgewood Ave
4.94(
8
)
•Approved Pro

ACQ Home Improvement

129 Edgewood Ave
4.94(
8
)
•Approved Pro
Customers say: Quick response
25 years of experience
Free onsite estimate

With over 20 yrs of experience, ACQ Home Improvement is dedicated to providing our customers with the best quality at a great price. In addition, we are here to build relationships with our customers and communities and provide our employees with a great place to work. We look forward to working with you!

"Jeremy and crew are professional, and expert at what they do. Very customer focused and back their work 100 percent. It was a pleasure working with them"

Curt C on March 2023

With over 20 yrs of experience, ACQ Home Improvement is dedicated to providing our customers with the best quality at a great price. In addition, we are here to build relationships with our customers and communities and provide our employees with a great place to work. We look forward to working with you!

"Jeremy and crew are professional, and expert at what they do. Very customer focused and back their work 100 percent. It was a pleasure working with them"

Curt C on March 2023

Avatar for Rescue Plumbing Services, LLC

Rescue Plumbing Services, LLC

44 Howe Ln
5.00(
9
)
•Approved Pro

Rescue Plumbing Services, LLC

44 Howe Ln
5.00(
9
)
•Approved Pro
Customers say: Quick response
3 years of experience
Free onsite estimate

RESCUE PLUMBING SERVICES LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade, combined with ability, is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

"Rescue plumbing really rescued me! I had a clogged kitchen sink, I cleaned the traps blew out the pipes but just couldnâ t get the sink to drain. I spoke to Cody and he was so helpful and knowledgeable he sent Ari out the next day and he fixed it within 20 minutes he was very knowledgeable and explained everything gave a bunch of tips and recommendations. He was super neat and left the area he worked in spotless! Thank you sooo much! Wendy Leclair"

Wendy L on November 2024

RESCUE PLUMBING SERVICES LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade, combined with ability, is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

"Rescue plumbing really rescued me! I had a clogged kitchen sink, I cleaned the traps blew out the pipes but just couldnâ t get the sink to drain. I spoke to Cody and he was so helpful and knowledgeable he sent Ari out the next day and he fixed it within 20 minutes he was very knowledgeable and explained everything gave a bunch of tips and recommendations. He was super neat and left the area he worked in spotless! Thank you sooo much! Wendy Leclair"

Wendy L on November 2024

KRL Plumbing and Heating, LLC

1 Sanborn Road
5.00(
2
)
•Approved Pro

KRL Plumbing and Heating, LLC

1 Sanborn Road
5.00(
2
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
4 years of experience

I am committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests and make their concerns the basis of our business.

"Kevin was great; on time, quiet, cleaned up after himself and went to his truck probably 3 times times to get just the right piece. I would recommend him for any plumbing project."

Judi M on August 2024

I am committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests and make their concerns the basis of our business.

"Kevin was great; on time, quiet, cleaned up after himself and went to his truck probably 3 times times to get just the right piece. I would recommend him for any plumbing project."

Judi M on August 2024

Avatar for BK Sewer & Drain Services

BK Sewer & Drain Services

3 Oak Street
5.00(
6
)
•Approved Pro

BK Sewer & Drain Services

3 Oak Street
5.00(
6
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
7 years of experience

We pride ourselves on reliability, communication, integrity, and quality work. We are experts in our trade. We look forward to earning your business! Please call 978-941 5561 For all drain and sewer services

"Bright knows exactly what he's doing and how to fix a major plumbing issue. Very professional, prompt, has very clear communication, is hard working, very hard working, and personable. He has the proper equipment do diagnose and fix the problem in a timely manner. His knowledge of plumbing is also exemplary. It was a pleasure doing business with him and will hire him for future jobs. Thank you Bright!"

Ava D on January 2022

We pride ourselves on reliability, communication, integrity, and quality work. We are experts in our trade. We look forward to earning your business! Please call 978-941 5561 For all drain and sewer services

"Bright knows exactly what he's doing and how to fix a major plumbing issue. Very professional, prompt, has very clear communication, is hard working, very hard working, and personable. He has the proper equipment do diagnose and fix the problem in a timely manner. His knowledge of plumbing is also exemplary. It was a pleasure doing business with him and will hire him for future jobs. Thank you Bright!"

Ava D on January 2022

Avatar for Cutting Edge Plumbing, LLC

Cutting Edge Plumbing, LLC

247 Camelot Shore Dr
5.00(
12
)
•Approved Pro

Cutting Edge Plumbing, LLC

247 Camelot Shore Dr
5.00(
12
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
5 years of experience

Welcome to Cutting Edge Plumbing LLC! We are a new plumbing company as of August serving Southern New Hampshire. We are fully insured and are here for you! We take pride in the quality of work and customer satisfaction that we give each and every customer! Call us today to learn more about how we can help you! Also don't forget to check out our Facebook page cutting edge plumbing llc as well as our website www.cuttingedgeplumbingnh.com

"Awesome job indeed."

James F on September 2023

Welcome to Cutting Edge Plumbing LLC! We are a new plumbing company as of August serving Southern New Hampshire. We are fully insured and are here for you! We take pride in the quality of work and customer satisfaction that we give each and every customer! Call us today to learn more about how we can help you! Also don't forget to check out our Facebook page cutting edge plumbing llc as well as our website www.cuttingedgeplumbingnh.com

"Awesome job indeed."

James F on September 2023

Avatar for Top Dog Sewer & Drain

Top Dog Sewer & Drain

10 Morrison Road
4.87(
36
)
•Approved Pro

Top Dog Sewer & Drain

10 Morrison Road
4.87(
36
)
•Approved Pro
Customers say: Quick response
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
7 years of experience

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers' needs. It is our mission to provide excellent workmanship, and complete customer satisfaction from start to completion of a project. In order to understand the needs, and expectations of our customers, we take great care to work, and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Charlie came out and in no time cleared the blockage. When I called they said about 2 hrs , he was here within an hr. He was very professional, knowledgeable and affordable. Definitely recommend this company."

Pamela P on February 2025

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers' needs. It is our mission to provide excellent workmanship, and complete customer satisfaction from start to completion of a project. In order to understand the needs, and expectations of our customers, we take great care to work, and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Charlie came out and in no time cleared the blockage. When I called they said about 2 hrs , he was here within an hr. He was very professional, knowledgeable and affordable. Definitely recommend this company."

Pamela P on February 2025

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Sump Pump Installation questions, answered by experts

Yes, it’s normal (and beneficial) to have a small amount of water in the bottom of your sump pit. It shows that your system is collecting groundwater, rain, and excess water from around your property—just like it’s supposed to. However, if the sump pit is always full, you might have a leak or a faulty sump pump.

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.

If your water pump fails, the first step is to turn off the power to the pump to prevent any further damage. Check for common issues such as clogs, electrical problems, or mechanical failures. If you cannot identify the problem, contact a professional who specializes in pump repairs. Prompt action can help minimize damage and repair costs.

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.

If you live in an area that has frequent power outages, it’s a good idea to install a sump pump battery backup. A sump pump requires electricity to move water out of the home. The battery backup will ensure that your sump pump has a supply of electricity, even if the power is out. 

The Londonderry, 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.

See all articles