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Verified Reviews for Boiler Installation pros in Londonderry, NH
*The Angi rating for Boiler 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 Boiler Installation needs.
*The HomeAdvisor rating for Boiler 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 Boiler Installation needs.
Last update on November 19, 2025
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Sila Heating, Cooling, Plumbing and Electrical
Sila Heating, Cooling, Plumbing and Electrical
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!
"Topic is a home water supply Shallow Well which operates with a shallow well jet pump + pressure tank installed in the basement. I had been collecting parts over the summer, as I knew the original to house jet pump would go out soon some day and with covid parts are hard to get quick, so started collecting ahead of time. Glad I did as the pump started leaking, from the housing. Replacement needed. Not an emergency but time to get it replaced. Was a ticking clock as it also looked like the pump was twisting putting stress on piping as original owner did not mount it and other fittings had large amounts of corrosion on them. I supplied these parts for the job: new 1hp jet pump, 44 Gal. pressure tank with T package, water filter housing, brass fittings, brass check valve, brass ball valves, 1" copper pipe and some copper fitting, and 2x10 pressure treated board to mount the pump/board to the floor with concrete anchors. Called up Sila on 10/14, master plumber Dave was available on 10/16 to come quote the job of installing what I supplied and misc. parts still needed. Talked with me and received my requests for specific design wants and he supplied his opinions & additional ideas and other options like wall mounting of water filter, sensor shutoff option and different water filter all together and we worked out the plan, did not do the different filter or sensor though. Talked about brass pipe and fittings at the pump up to the pressure tank and we agreed what I had purchased was good and would last a lifetime, vs copper all the way which would still last a long time. Quoted $2800 with water filter bypassing and $2600 without the water filter bypassing. Job was scheduled for 10/22. Quote was high level line item as listed here. Came a bit late on 10/14, due to an emergency call, no big deal Dave called to let me know. Was on time for installation on 10/22, 7:30am. Two workers on Job (Dave + 1, sorry I’m horrible with names +1 was an electrician and was helping Dave) Job took ~ 8 hours to finish. What was not able to be completed: Was not able to replace old original check valve. Well started to suck air when old was started to be removed, confirming there is no foot valve on the line or a broken one, so old check valve was kept. Concern was not being able to recover from air going down the well pipe causing priming issues. At this point the job would require a well expert and was not able to be replaced by Sila. What part of job was mis-understood: Mounting of jet pump to board/floor. Ended up missing the concrete anchors to start and installing after the fact with a different method. Made it more difficult to mount the pump and did scratch the rust proof paint. But it got done. Nice and sturdy. What was complicated on the job: Something that should have not been an issue at all went wrong. I had purchased 1” brass unions. There were two unions installed. One was found to be causing leaks during the initial job installation. This caused extra rework during the initial job. After job completion and area dried with a fan, it was found that both unions were leaking. The original one that had issues in the initial job and the 2nd one. One is pre pump and one is post pump. Called Sila office on 10/23 and told them what was happening, Dave’s earliest availability to come back was was 10/26. He was on time on 10/26. Dave stated that 1 union was giving trouble and replaced it with one spare that I had also purchased. When looking at the 2nd union again he was not able to get it to seal and he made the call and changed the design to direct copper connection and no union, I did not object as at this point just wanted the job done. No More leaks on that location, but also no ability to easily break the connection for future maintenance. When left no leaks. However, after using water for a while the 1st union started leaking again. Texted Dave direct with a picture and said he could return on 10/28 and I requested him to bring a union from his supply. Arrived when he could with ~ 1hr notice and replaced the union with one of his. When looking closer at the issue unions that I had purchased it was found they were cracking. Summary: I’m a novice in pluming, reason for calling Sila. I wish Dave would have noticed the poor part / crack issue and replaced unions from his stock on day 1. I was trying to save time by collecting parts over time and ended up causing issues. Dave knew he was working with brass and seems like he did not have backup stock on site incase of issues. Wish he did as I’d have two unions… and he would not have had to come back twice to repair the leaks. The call was made to not use the brass ball valves I purchased so it was clear that my parts were recommended to use but not absolute. Overall Dave and team did a great job, it’s clean, organized, valves and drain spickets installed nice and logically, filter is at good height, job completed like I asked and planned with Dave, except for the above jet pump mounting, union issue and check valve replacement discussion above here. Dave and team was professional and focused to get the job done. Thanks Dave for your hard work. Reason for Rating: I am giving this job an A rating based on the end result, Sila stood by the workmanship and resolved the issues that arose. That is a sign of a great company. If I would not have supplied the couplers that issue would not have happened ultimately and the check valve & well priming issue was just out of reach and would have required a well specialist to complete. The pump mounting was probably just lost in the large amount of details we had discussed, again it is mounted sturdy."
Steven M on November 2020
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!
"Topic is a home water supply Shallow Well which operates with a shallow well jet pump + pressure tank installed in the basement. I had been collecting parts over the summer, as I knew the original to house jet pump would go out soon some day and with covid parts are hard to get quick, so started collecting ahead of time. Glad I did as the pump started leaking, from the housing. Replacement needed. Not an emergency but time to get it replaced. Was a ticking clock as it also looked like the pump was twisting putting stress on piping as original owner did not mount it and other fittings had large amounts of corrosion on them. I supplied these parts for the job: new 1hp jet pump, 44 Gal. pressure tank with T package, water filter housing, brass fittings, brass check valve, brass ball valves, 1" copper pipe and some copper fitting, and 2x10 pressure treated board to mount the pump/board to the floor with concrete anchors. Called up Sila on 10/14, master plumber Dave was available on 10/16 to come quote the job of installing what I supplied and misc. parts still needed. Talked with me and received my requests for specific design wants and he supplied his opinions & additional ideas and other options like wall mounting of water filter, sensor shutoff option and different water filter all together and we worked out the plan, did not do the different filter or sensor though. Talked about brass pipe and fittings at the pump up to the pressure tank and we agreed what I had purchased was good and would last a lifetime, vs copper all the way which would still last a long time. Quoted $2800 with water filter bypassing and $2600 without the water filter bypassing. Job was scheduled for 10/22. Quote was high level line item as listed here. Came a bit late on 10/14, due to an emergency call, no big deal Dave called to let me know. Was on time for installation on 10/22, 7:30am. Two workers on Job (Dave + 1, sorry I’m horrible with names +1 was an electrician and was helping Dave) Job took ~ 8 hours to finish. What was not able to be completed: Was not able to replace old original check valve. Well started to suck air when old was started to be removed, confirming there is no foot valve on the line or a broken one, so old check valve was kept. Concern was not being able to recover from air going down the well pipe causing priming issues. At this point the job would require a well expert and was not able to be replaced by Sila. What part of job was mis-understood: Mounting of jet pump to board/floor. Ended up missing the concrete anchors to start and installing after the fact with a different method. Made it more difficult to mount the pump and did scratch the rust proof paint. But it got done. Nice and sturdy. What was complicated on the job: Something that should have not been an issue at all went wrong. I had purchased 1” brass unions. There were two unions installed. One was found to be causing leaks during the initial job installation. This caused extra rework during the initial job. After job completion and area dried with a fan, it was found that both unions were leaking. The original one that had issues in the initial job and the 2nd one. One is pre pump and one is post pump. Called Sila office on 10/23 and told them what was happening, Dave’s earliest availability to come back was was 10/26. He was on time on 10/26. Dave stated that 1 union was giving trouble and replaced it with one spare that I had also purchased. When looking at the 2nd union again he was not able to get it to seal and he made the call and changed the design to direct copper connection and no union, I did not object as at this point just wanted the job done. No More leaks on that location, but also no ability to easily break the connection for future maintenance. When left no leaks. However, after using water for a while the 1st union started leaking again. Texted Dave direct with a picture and said he could return on 10/28 and I requested him to bring a union from his supply. Arrived when he could with ~ 1hr notice and replaced the union with one of his. When looking closer at the issue unions that I had purchased it was found they were cracking. Summary: I’m a novice in pluming, reason for calling Sila. I wish Dave would have noticed the poor part / crack issue and replaced unions from his stock on day 1. I was trying to save time by collecting parts over time and ended up causing issues. Dave knew he was working with brass and seems like he did not have backup stock on site incase of issues. Wish he did as I’d have two unions… and he would not have had to come back twice to repair the leaks. The call was made to not use the brass ball valves I purchased so it was clear that my parts were recommended to use but not absolute. Overall Dave and team did a great job, it’s clean, organized, valves and drain spickets installed nice and logically, filter is at good height, job completed like I asked and planned with Dave, except for the above jet pump mounting, union issue and check valve replacement discussion above here. Dave and team was professional and focused to get the job done. Thanks Dave for your hard work. Reason for Rating: I am giving this job an A rating based on the end result, Sila stood by the workmanship and resolved the issues that arose. That is a sign of a great company. If I would not have supplied the couplers that issue would not have happened ultimately and the check valve & well priming issue was just out of reach and would have required a well specialist to complete. The pump mounting was probably just lost in the large amount of details we had discussed, again it is mounted sturdy."
Steven M on November 2020

Rescue Plumbing Services
Rescue Plumbing Services
Contact us today with all your plumbing issues and estimates! With over 30 years of experience, no job is ever too big or too little! We specialize in underground plumbing repairs, water heater and boiler replacements, drain cleaning, hydro jetting, and preforming diagnostic tests on sewer/septic systems. We provide 24/7 service for both commercial and residential properties!
"Cody and his crew were amazing-- we had a complicated issue that required multiple visits and coordination with the city's engineers. Cody was professional, knowledgeable, and as dedicated to getting the job done right as if it had been his own home. His quotes were accurate and competitive, he and his crew were on time (and often stayed late!) and kept the work area clean and safe. We will never call anyone else!"
Jen S on February 2023
Contact us today with all your plumbing issues and estimates! With over 30 years of experience, no job is ever too big or too little! We specialize in underground plumbing repairs, water heater and boiler replacements, drain cleaning, hydro jetting, and preforming diagnostic tests on sewer/septic systems. We provide 24/7 service for both commercial and residential properties!
"Cody and his crew were amazing-- we had a complicated issue that required multiple visits and coordination with the city's engineers. Cody was professional, knowledgeable, and as dedicated to getting the job done right as if it had been his own home. His quotes were accurate and competitive, he and his crew were on time (and often stayed late!) and kept the work area clean and safe. We will never call anyone else!"
Jen S on February 2023

ACQ Home Improvement
ACQ Home Improvement
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
KRL Plumbing and Heating, LLC
KRL Plumbing and Heating, LLC
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

BK Sewer & Drain Services
BK Sewer & Drain Services
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

Top Dog Sewer & Drain
Top Dog Sewer & Drain
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

Easy A's Plumbing & Heating, LLC
Easy A's Plumbing & Heating, LLC
Welcome to Easy A's Plumbing & Heating, LLC. We are excited to exceed your expectations. As experts, we will handle your needs with the high quality expertise that your home or business deserves. We offer competitive prices, and customer satisfaction is our number one priority. Call us now!
"It took much longer than expected, but they were so much more reasonable price wise, it was worth the wait."
Paula S on July 2019
Welcome to Easy A's Plumbing & Heating, LLC. We are excited to exceed your expectations. As experts, we will handle your needs with the high quality expertise that your home or business deserves. We offer competitive prices, and customer satisfaction is our number one priority. Call us now!
"It took much longer than expected, but they were so much more reasonable price wise, it was worth the wait."
Paula S on July 2019
Cool Air
Cool Air
At Cool Air, we take great pride in our experience, expertise, quality and customer service that we provide to meet the consumer's 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.
At Cool Air, we take great pride in our experience, expertise, quality and customer service that we provide to meet the consumer's 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.

Derry Plumbing & Heating
Derry Plumbing & Heating
If you�re familiar with plumbing, you know that doing it right takes just the right recipe: two parts job knowledge and three parts skill. At Londonderry Plumbing and Heating, we provide everything you need to secure the perfect plumbing solution, a mixture that will do you right, just like home cooking! No job is too small or too challenging for our dedicated professionals! Londonderry Plumbing and Heating can tackle your most challenging plumbing problems and do so at affordable rates. If you are looking for a plumber who is highly qualified, quick to respond and a pleasure to do business with, give us a call. We look forward to adding you to our list of satisfied customers!
"Great service! Emergency service and done within the day!"
Bonnie S on May 2025
If you�re familiar with plumbing, you know that doing it right takes just the right recipe: two parts job knowledge and three parts skill. At Londonderry Plumbing and Heating, we provide everything you need to secure the perfect plumbing solution, a mixture that will do you right, just like home cooking! No job is too small or too challenging for our dedicated professionals! Londonderry Plumbing and Heating can tackle your most challenging plumbing problems and do so at affordable rates. If you are looking for a plumber who is highly qualified, quick to respond and a pleasure to do business with, give us a call. We look forward to adding you to our list of satisfied customers!
"Great service! Emergency service and done within the day!"
Bonnie S on May 2025

Septic Designs of NH, LLC
Septic Designs of NH, LLC
Septic Designs of NH LLC is a Veteran owned small business with BBB accreditation. We take great pride in our work and are not satisfied until you are. We do Septic Designs, Inspections, Tank Replacements, and Septic Repairs. We also clear main sewer lines and do Trenchless Pipe Repair. Which is a NO DIG solution for pipe replacements. Our jetter is also a HEATED jetter for that tough grease or other buildup where you need some extra hot water to really clean the pipe.
"I called every plumber around and Septic Design of NH had the best price to put a camera down the sewer line. Problem was located in no time."
Vickie C on September 2021
Septic Designs of NH LLC is a Veteran owned small business with BBB accreditation. We take great pride in our work and are not satisfied until you are. We do Septic Designs, Inspections, Tank Replacements, and Septic Repairs. We also clear main sewer lines and do Trenchless Pipe Repair. Which is a NO DIG solution for pipe replacements. Our jetter is also a HEATED jetter for that tough grease or other buildup where you need some extra hot water to really clean the pipe.
"I called every plumber around and Septic Design of NH had the best price to put a camera down the sewer line. Problem was located in no time."
Vickie C on September 2021
The Londonderry, NH homeowners’ guide to boiler installation services
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- 🌱 "Mow a small front yard"
- 🛠 "Fix a leaking pipe under the sink"
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