A couple months ago I hired Jason to replace a 48 year old gas boiler, and a 15 year old water heater. I spent hours doing my own research, and narrowed my picks down to two brands and models. Jason listened to all of my reasons for picking those two models, but he also recommended another...

Get matched with top boiler repair pros in Nashua, NH
There are 45 highly-rated local boiler repair pros.
Need a pro for your boiler repair project in Nashua, NH?
TRUSTED BY NASHUA, NH HOMEOWNERS
4.5
Average homeowner rating1.5k+
Verified boiler repairs reviews
Verified Reviews for Boiler Repair pros in Nashua, NH
Last update on October 11, 2025
- Ben K.
- Patrick C.
Tom stopped by as scheduled and checked the work that I was interested in, namely boiler replacement, leaky radiator valve with corroded pipe and capping off an old gas pipe. He was very helpful and polite. He pointed out that the boiler could last several more years but that the 7yr old...
- Kate G.
They’ve just been great. They’re responsive. They got 24 hour on call service. When we needed the new boiler, they came right out and do the estimate. They’ve been great. They always get it done in one day.
- Paul B.
repaired but it was too old so we bought new one he was however helpful and courteous
- Michael G.
I think my description above says it all and I am thrilled everytime I go down into my basement and see me brand spanking new boiler sitting there. You can tell all the connections and joints were done meticulously.
Find Boiler repair pros in Nashua
New England Oil, LLC
New England Oil, LLC
Looking for top-notch service? Look no further than New England Oil, LLC. Contact us today for all your heating oil needs!
Looking for top-notch service? Look no further than New England Oil, LLC. Contact us today for all your heating oil needs!

C2G Environmental Consultants LLC
C2G Environmental Consultants LLC
C2G Environmental Consultants, LLC specializes in underground storage tank removals and abandonments, above ground storage tank removals and installations, remediation of contaminated soil, groundwater investigations, and emergency spill response. By choosing C2G Environmental, you can be assured that your environmental project will be handled with the utmost care and professionalism. C2G Environmental is a full service environmental company. What sets us apart from other companies is our highly trained staff of professional geologists and hydrologists, as well as technicians. We do not use sub-contractors or rental equipment. We are authorized by New York, Connecticut, and New Jersey to remove and haul contaminated material. Our Services: • Tank Removals, Abandonments & Installations • 24 Hour Emergency Spill Response • Ground Penetrating Radar (GPR) • Geoprobe & Vac Truck Services • Water, Soil, Air Testing/Monitoring • Liquid/Soil Transportation & Disposal • Petroleum Facility Compliance Audits (Class A/B Operator) • Phase I & II Environmental Site Assessment
"C2G was excellent during the entire process. they had a quote to my in less than 24 hours and promptly answered my questions when I called them. Once I selected them they were able to schedule the job just a few days out and I could not have been more satisfied with the outcome. The two workers who did the job were knowledgeable and respectful. In over 20 years of home ownership I would have to say this was the best experience I ever had with a home contractor."
Jim O on July 2020
C2G Environmental Consultants, LLC specializes in underground storage tank removals and abandonments, above ground storage tank removals and installations, remediation of contaminated soil, groundwater investigations, and emergency spill response. By choosing C2G Environmental, you can be assured that your environmental project will be handled with the utmost care and professionalism. C2G Environmental is a full service environmental company. What sets us apart from other companies is our highly trained staff of professional geologists and hydrologists, as well as technicians. We do not use sub-contractors or rental equipment. We are authorized by New York, Connecticut, and New Jersey to remove and haul contaminated material. Our Services: • Tank Removals, Abandonments & Installations • 24 Hour Emergency Spill Response • Ground Penetrating Radar (GPR) • Geoprobe & Vac Truck Services • Water, Soil, Air Testing/Monitoring • Liquid/Soil Transportation & Disposal • Petroleum Facility Compliance Audits (Class A/B Operator) • Phase I & II Environmental Site Assessment
"C2G was excellent during the entire process. they had a quote to my in less than 24 hours and promptly answered my questions when I called them. Once I selected them they were able to schedule the job just a few days out and I could not have been more satisfied with the outcome. The two workers who did the job were knowledgeable and respectful. In over 20 years of home ownership I would have to say this was the best experience I ever had with a home contractor."
Jim O on July 2020

Super Service Today Inc
Super Service Today Inc
Super Service Today is a full service plumbing and drain cleaning company. Our team is experienced and fully equipped to solve your problem. We are your regular plumber's drain cleaning professional. Your home or business will be treated as if it were our own! Customer service is our number one priority and you will see first hand when you call! We take the time to really listen and understand your goals and needs to make sure you are fully satisfied with the service you receive. Our service experts are trained to offer long term solutions that will best work for you and your family. We are a family owned and locally operated company serving Middlesex County, Essex County, Suffolk County and surrounding communities. Super Service Today, Inc. specializes in all aspects of plumbing, gas work, residential heating, drain cleaning, sewer repairs and main water service relays. We are available to assist you with all of your plumbing requirements from faucet installs to sewer replacements. We are solution experts that you only need to call once. Give us a call today to see how we can help you with all of your plumbing needs. We do not service Window AC units.
"No they are rip off They pray on the elderly saying things are ticking time bonb!"
Mike T on September 2025
Super Service Today is a full service plumbing and drain cleaning company. Our team is experienced and fully equipped to solve your problem. We are your regular plumber's drain cleaning professional. Your home or business will be treated as if it were our own! Customer service is our number one priority and you will see first hand when you call! We take the time to really listen and understand your goals and needs to make sure you are fully satisfied with the service you receive. Our service experts are trained to offer long term solutions that will best work for you and your family. We are a family owned and locally operated company serving Middlesex County, Essex County, Suffolk County and surrounding communities. Super Service Today, Inc. specializes in all aspects of plumbing, gas work, residential heating, drain cleaning, sewer repairs and main water service relays. We are available to assist you with all of your plumbing requirements from faucet installs to sewer replacements. We are solution experts that you only need to call once. Give us a call today to see how we can help you with all of your plumbing needs. We do not service Window AC units.
"No they are rip off They pray on the elderly saying things are ticking time bonb!"
Mike T on September 2025

Druziako HVAC Inc
Druziako HVAC Inc
Our customers are our number one priority and for this reason, we use only the best quality equipment, such as Carrier, Rheem and Concord, plus we offer extended warranties for these various systems. We pledge to see that every customer is fully-satisfied and cared for, that is why we offer 24-hour service during the winter for heating systems. We are a Mass save participant and offer financing and rebate support. *Now offering 1 year of free maintenance with any furnace or air conditioner installation /or/ free air duct cleaning with installation of a furnace*
"Timely and very fair price"
Ken F on September 2024
Our customers are our number one priority and for this reason, we use only the best quality equipment, such as Carrier, Rheem and Concord, plus we offer extended warranties for these various systems. We pledge to see that every customer is fully-satisfied and cared for, that is why we offer 24-hour service during the winter for heating systems. We are a Mass save participant and offer financing and rebate support. *Now offering 1 year of free maintenance with any furnace or air conditioner installation /or/ free air duct cleaning with installation of a furnace*
"Timely and very fair price"
Ken F on September 2024

RPM Heating & Cooling LLC
RPM Heating & Cooling LLC
RPM Heating & Cooling LLC Dracut, MA, 01826 (978) 957-2728 RPM Heating & Cooling LLC is a well-known, 5-star, family-run HVAC contractor in the Dracut, MA area. Reach our team today. Heating Contractor, Heating & Cooling, Home Heating Systems, Cooling System, Affordable Heating and Cooling https://rpmheatandcool.com/
"My furnace needed to be replaced. I got a few bids and Matt RPM got the job. He was meticulous in his work! He reviewed with me what I needed to know. He left the area cleaner than he arrived and over time if I had a question he was quick to reply. I would hire him again in a minute!!"
Diane D on August 2024
RPM Heating & Cooling LLC Dracut, MA, 01826 (978) 957-2728 RPM Heating & Cooling LLC is a well-known, 5-star, family-run HVAC contractor in the Dracut, MA area. Reach our team today. Heating Contractor, Heating & Cooling, Home Heating Systems, Cooling System, Affordable Heating and Cooling https://rpmheatandcool.com/
"My furnace needed to be replaced. I got a few bids and Matt RPM got the job. He was meticulous in his work! He reviewed with me what I needed to know. He left the area cleaner than he arrived and over time if I had a question he was quick to reply. I would hire him again in a minute!!"
Diane D on August 2024

Unique Indoor Comfort Heating & Cooling
Unique Indoor Comfort Heating & Cooling
Unique Indoor Comfort, an Ace Hardware Company is a family owned and operated business with over 30 years in the HVAC industry. Providing residential heating and air conditioning maintenance, repair and installation of furnaces, boilers, heat pumps, ductless and high velocity AC. We are experts at providing air conditioning solutions for older homes, oil/gas to heat pump conversions, and are Mass Save certified heat pump contractors. We’ve built a reputation for superior quality, through years of putting the customer first and getting the job done right the first time. As local residents, our family and expertly trained team of technicians think of our customers as neighbors; our goal is to maintain our reputation as a quality organization, continuing to offer superior heating and cooling services in the Boston area and ensuring that you can be proud of our work and products for years to come.
"Diagnosis and repair were straightforward and the talented Mike, who has done other great work for us on our ACs, had a replacement pump in his truck. Swapped over in under an hour. Cost of the repair was quite high, mainly due to very high price they charged for the pump. A Taco pump that I could buy for $175 was priced on this repair at more than $500. I get that it was an urgent situation and I’m happy to pay reasonably for the response but that mark-up bothered me. I called the office, had a long talk with the owner; sadly, she offered no consideration at all. Yes, it’s hard to find and keep skilled techs, but now seems that most HVAC firms have a business model like a car dealer’s service dept, far more corporate, less flexible or customer-considerate."
Mark S on January 2021
Unique Indoor Comfort, an Ace Hardware Company is a family owned and operated business with over 30 years in the HVAC industry. Providing residential heating and air conditioning maintenance, repair and installation of furnaces, boilers, heat pumps, ductless and high velocity AC. We are experts at providing air conditioning solutions for older homes, oil/gas to heat pump conversions, and are Mass Save certified heat pump contractors. We’ve built a reputation for superior quality, through years of putting the customer first and getting the job done right the first time. As local residents, our family and expertly trained team of technicians think of our customers as neighbors; our goal is to maintain our reputation as a quality organization, continuing to offer superior heating and cooling services in the Boston area and ensuring that you can be proud of our work and products for years to come.
"Diagnosis and repair were straightforward and the talented Mike, who has done other great work for us on our ACs, had a replacement pump in his truck. Swapped over in under an hour. Cost of the repair was quite high, mainly due to very high price they charged for the pump. A Taco pump that I could buy for $175 was priced on this repair at more than $500. I get that it was an urgent situation and I’m happy to pay reasonably for the response but that mark-up bothered me. I called the office, had a long talk with the owner; sadly, she offered no consideration at all. Yes, it’s hard to find and keep skilled techs, but now seems that most HVAC firms have a business model like a car dealer’s service dept, far more corporate, less flexible or customer-considerate."
Mark S on January 2021

All Drain Services, Inc.
All Drain Services, Inc.
All Drain Services, Inc. has been in the drain service business for over 18 years and is owned by Manny and Gloria Vega. Our commitment to customer service is unmatched. Our years of experience have taught us that in our line of business, that is what counts. Our dedication to delivering a quality job has been the backbone of our success, and this commitment is instilled in all our employees. All Drain Services, Inc. is open 24/7, including holidays. We offer emergency and regular maintenance services.
"Joe from All Drain Services stopped by today and unclogged a drain pipe for me in the bathroom."
Wojciech G on July 2025
All Drain Services, Inc. has been in the drain service business for over 18 years and is owned by Manny and Gloria Vega. Our commitment to customer service is unmatched. Our years of experience have taught us that in our line of business, that is what counts. Our dedication to delivering a quality job has been the backbone of our success, and this commitment is instilled in all our employees. All Drain Services, Inc. is open 24/7, including holidays. We offer emergency and regular maintenance services.
"Joe from All Drain Services stopped by today and unclogged a drain pipe for me in the bathroom."
Wojciech G on July 2025

Walley’s Heating & Air Conditioning
Walley’s Heating & Air Conditioning
Walley’s is not your average HVAC contractor. From our in-house sales and support center to our modern fleet of licensed technicians, our team has the tools, trucks, and training to handle all of your mechanical needs. But more than that, we are committed to giving back and playing a bigger role in our community. Through our work with local charities, educational providers, and our continued efforts towards promoting energy-efficient products, ethical business practices, and enforcing the highest industry standards, Walley’s is delivering real value to the community every day! Our entire team is grateful for the opportunity to show you what we are made of. Thank you for your consideration.
"Badly. 2 different techs came out. We paid for a Premium service and within hours of that tech coming out, our burner stopped working completely. Mind you there is a snowstorm. They sent out a new technician and he saw nothing wrong with the system at all. He said we had no oil. He said there was no footprints even going to my intake on the side of my house. It had snowed 2 times since oil was delivered, so that makes no sense. The tech was absolutely sure we had no oil. 3 days since the first visit now and we had oil delivered and the tank filled completely. Only 150 gallons went into my 250 gallon tank. So that's wrong. And I look at the front of my furnace and now see a slow drip from the front underneath the box on the front of the furnace. First tech recommended i replace the electrodes but said it didnt need it. Second tech didnt even mention that and said our system was good. Now, I will have to contact Angi for support and my insurance company. TERRIBLE TERRIBLE TERRIBLE"
Paul C on February 2025
Walley’s is not your average HVAC contractor. From our in-house sales and support center to our modern fleet of licensed technicians, our team has the tools, trucks, and training to handle all of your mechanical needs. But more than that, we are committed to giving back and playing a bigger role in our community. Through our work with local charities, educational providers, and our continued efforts towards promoting energy-efficient products, ethical business practices, and enforcing the highest industry standards, Walley’s is delivering real value to the community every day! Our entire team is grateful for the opportunity to show you what we are made of. Thank you for your consideration.
"Badly. 2 different techs came out. We paid for a Premium service and within hours of that tech coming out, our burner stopped working completely. Mind you there is a snowstorm. They sent out a new technician and he saw nothing wrong with the system at all. He said we had no oil. He said there was no footprints even going to my intake on the side of my house. It had snowed 2 times since oil was delivered, so that makes no sense. The tech was absolutely sure we had no oil. 3 days since the first visit now and we had oil delivered and the tank filled completely. Only 150 gallons went into my 250 gallon tank. So that's wrong. And I look at the front of my furnace and now see a slow drip from the front underneath the box on the front of the furnace. First tech recommended i replace the electrodes but said it didnt need it. Second tech didnt even mention that and said our system was good. Now, I will have to contact Angi for support and my insurance company. TERRIBLE TERRIBLE TERRIBLE"
Paul C on February 2025
Airco Home Comfort Services LLC
Airco Home Comfort Services LLC
Specializing in all HVAC/R services to include Geothermal Heating and Cooling. Ground Source Heat Pump services. Additional service area: Chelmsford-Haverhill, Boxford-Gloucester, Manchester-Nashua & Portions Of Downtown. No interest Financing available and all major credit cards accepted. Additional DBA - Airco Heating & Cooling. Additional email - [email protected]. Master Sheet Metal License: 1325 and Master Plumber License: 11593
"Joe, the AirCo sales representative, was very professional. He actually asked for my feedback on priorities for a new boiler. This was important to me because the boiler sits below our family room, and the noise level of the boiler was as issue. His proposals listed several boiler options, based on heating efficiency, which were competitively priced. The installation was run by Steve, who was able to fit in the installation the next week. Steve, and his crews, were punctual and courteous, and the installation went smoothly. It's only been a week, but I am very pleased with my Bosch boiler, the quality of the work, the price paid, and the timeliness of the installation."
David B on November 2018
Specializing in all HVAC/R services to include Geothermal Heating and Cooling. Ground Source Heat Pump services. Additional service area: Chelmsford-Haverhill, Boxford-Gloucester, Manchester-Nashua & Portions Of Downtown. No interest Financing available and all major credit cards accepted. Additional DBA - Airco Heating & Cooling. Additional email - [email protected]. Master Sheet Metal License: 1325 and Master Plumber License: 11593
"Joe, the AirCo sales representative, was very professional. He actually asked for my feedback on priorities for a new boiler. This was important to me because the boiler sits below our family room, and the noise level of the boiler was as issue. His proposals listed several boiler options, based on heating efficiency, which were competitively priced. The installation was run by Steve, who was able to fit in the installation the next week. Steve, and his crews, were punctual and courteous, and the installation went smoothly. It's only been a week, but I am very pleased with my Bosch boiler, the quality of the work, the price paid, and the timeliness of the installation."
David B on November 2018

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!
"Never booked"
Melanie R on March 2024
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!
"Never booked"
Melanie R on March 2024
FAQs for boiler repair projects in Nashua, NH
The average cost to install a new water heater is around $1,300, but you can expect to pay between $875 and $1,750, depending on the kind of water heater, the size of the unit, and the professional chosen to complete the work. Tankless water heaters can push your price higher, as installation is more complicated, with prices as high as $3,500. The location and accessibility of your water heater will play a role in the project cost, as those sitting in tight spaces like a crawl space will drive up your labor costs.
Yes, most states require plumbers to be licensed, and for good reason. Hiring an unlicensed plumber could lead to poor quality work, costly future expenses, and potential code violations.
As you browse our pro listings, take note of the “Angi Approved” badge. Angi Approved businesses meet our standards for certification which include:
The owner, principal, or relevant manager passed a criminal background check
Required to have applicable state and local licenses
Maintain an average star rating of 3.0 or better on our network, if they have at least one review
Paying to advertise their services
Meeting any other eligibility criteria required by Angi
Keep in mind licensing is different from certifications. A license is a legal requirement to operate a business, while certifications are voluntary.
Yes, most states require HVAC technicians to be certified, and for good reason. Hiring an unlicensed HVAC technician could lead to poor quality work, costly future expenses, and potential code violations.
As you browse our pro listings, take note of the “Angi Approved” badge. Angi Approved businesses meet our standards for certification which include:
The owner, principal, or relevant manager passed a criminal background check
Required to have applicable state and local licenses
Maintain an average star rating of 3.0 or better on our network, if they have at least one review
Paying to advertise their services
Meeting any other eligibility criteria required by Angi
Keep in mind licensing is different from certifications. A license is a legal requirement to operate a business, while certifications are voluntary.
It is very difficult and dangerous to install your own water heater, so we strongly recommend against tackling this as a DIY project. Not only will you need to wire your water heater, but you’ll also need to connect plumbing to the intake and outlet. Sweating copper pipes and connecting wiring properly are skills most DIYers don’t have, and even if you do feel confident you can do it, working with water and electricity always leaves the potential for electrocution. Hiring a local water heater installer is well worth the investment.
The average cost to hire a plumber is around $100 an hour but can vary between $45 and $200 an hour depending on the plumber’s experience and the repair that you need. It’s also important to note that these prices can go up on holidays, and emergency plumber rates average $150 per hour, in addition to a flat-rate trip fee of $100 to $350.
The Nashua, NH homeowners’ guide to boiler repairs
From average costs to expert advice, get all the answers you need to get your job done.
A heat pump is an eco-friendly heating and cooling system that can save you money on utilities each month. Find out the cost of a heat pump with this guide.
HVAC replacement costs depend on a lot of factors, like unit type, size, and labor. See what you can expect to pay for HVAC replacement here.
- •
Get transparent, up-to-date swamp cooler repair cost info to learn what impacts pricing and how to save on your next swamp cooler repair.
You know filters, fans, and compressors, but do you know what a condensate drain line is? Discover how a small pipe safeguards your AC unit and home from major issues.
- •
Get the facts on propane boiler installation costs. Learn what impacts your price, compare options, and budget confidently for your home upgrade.
While it’s tempting to save money by trying to install a high-efficiency furnace yourself, here’s why you should hire an HVAC technician instead.
- Hudson, NH Boiler repair pros
- Hollis, NH Boiler repair pros
- Dunstable, MA Boiler repair pros
- Tyngsboro, MA Boiler repair pros
- Litchfield, NH Boiler repair pros
- Pepperell, MA Boiler repair pros
- Merrimack, NH Boiler repair pros
- Pelham, NH Boiler repair pros
- North Chelmsford, MA Boiler repair pros
- Brookline, NH Boiler repair pros
- Amherst, NH Boiler repair pros
- Londonderry, NH Boiler repair pros
- Windham, NH Boiler repair pros
- Dracut, MA Boiler repair pros
- Milford, NH Boiler repair pros
- Groton, MA Boiler repair pros
- Chelmsford, MA Boiler repair pros
- Westford, MA Boiler repair pros
- Lowell, MA Boiler repair pros
- Townsend, MA Boiler repair pros
- West Townsend, MA Boiler repair pros
- Devens, MA Boiler repair pros
- Bedford, NH Boiler repair pros
- Ayer, MA Boiler repair pros
- Derry, NH Boiler repair pros
- Salem, NH Boiler repair pros
- Shirley, MA Boiler repair pros
- Mont Vernon, NH Boiler repair pros
- Littleton, MA Boiler repair pros
- Wilton, NH Boiler repair pros