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TRUSTED BY WALTHAM, MA HOMEOWNERS
4.6 Average homeowner rating
1.4k+ Verified boiler repairs reviews
Verified Reviews for Boiler Repair pros in Waltham, MA
*The Angi rating for Boiler Repair companies in Waltham, MA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Boiler Repair needs.
*The HomeAdvisor rating for Boiler Repair companies in Waltham, MA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Boiler Repair needs.
Last update on December 13, 2025
Find Boiler repair pros in Waltham
Druziako HVAC Inc
Druziako HVAC Inc
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
35 years of experience
Since 1990, we’ve proudly served our community as a trusted, family-run HVAC company focused on quality, reliability, and honest service. With over three decades of experience, we specialize in the installation, replacement, and service of top heating and cooling brands including Carrier, Bryant, and Rheem. Our certified technicians take the time to size your system properly, install it the right way, and make sure you understand your new equipment. We stand behind our work with industry-leading manufacturer warranties—up to 10 years on many systems—and dependable local support you can count on long after the install is complete. Whether you need a high-efficiency furnace, central AC, heat pump, or a complete system upgrade, we deliver comfort solutions designed to last.
"Timely and very fair price"
Ken F on September 2024
Since 1990, we’ve proudly served our community as a trusted, family-run HVAC company focused on quality, reliability, and honest service. With over three decades of experience, we specialize in the installation, replacement, and service of top heating and cooling brands including Carrier, Bryant, and Rheem. Our certified technicians take the time to size your system properly, install it the right way, and make sure you understand your new equipment. We stand behind our work with industry-leading manufacturer warranties—up to 10 years on many systems—and dependable local support you can count on long after the install is complete. Whether you need a high-efficiency furnace, central AC, heat pump, or a complete system upgrade, we deliver comfort solutions designed to last.
"Timely and very fair price"
Ken F on September 2024
NETR Inc
NETR Inc
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
275 local quotes requested
For emergency services, please call 781-933-6387. N.E.T.R., Inc. is here to help homeowners install the best heating and cooling systems that fits their needs. Since 1989, we’ve installed heating and cooling systems in Boston and its surrounding areas, tackling tough problems that our clients face. Our goal is to ensure our clients have energy efficient, quiet, reliable systems so they can live their lives to the fullest both at home and at work. Our dedication to our customers’ needs is what drives us each and every day. Our approach to temperature control and comfort has helped us become one of the most respected names in heating, cooling, and refrigeration in New England
"Before installing a mini-split, the sales person told me that I'd need to cut down an interior shelf to a specific height. I paid a handyman $400 to do exactly what the sales person instructed. Later on, N.E.T.R. came and did the installation; however, AFTER the installation, a technician told me that they hadn't accounted for the vent opening and closing and that the shelf would need to be further cut down. As you can imagine, this type of service is rather ridiculous. If they knew that the shelf would need further cutting, they should have NOT installed the unit. I have called N.E.T.R. six (6) times in three weeks, and no one has called me back about this issue. After paying for the unit and for a handyman, it's ridiculous that I have AC that is compromised because no one with the company thought to properly measure the space so that the work by the handyman could be done once. At this point, I'd like for N.E.T.R. to take care of this for me."
Linda O on June 2025
For emergency services, please call 781-933-6387. N.E.T.R., Inc. is here to help homeowners install the best heating and cooling systems that fits their needs. Since 1989, we’ve installed heating and cooling systems in Boston and its surrounding areas, tackling tough problems that our clients face. Our goal is to ensure our clients have energy efficient, quiet, reliable systems so they can live their lives to the fullest both at home and at work. Our dedication to our customers’ needs is what drives us each and every day. Our approach to temperature control and comfort has helped us become one of the most respected names in heating, cooling, and refrigeration in New England
"Before installing a mini-split, the sales person told me that I'd need to cut down an interior shelf to a specific height. I paid a handyman $400 to do exactly what the sales person instructed. Later on, N.E.T.R. came and did the installation; however, AFTER the installation, a technician told me that they hadn't accounted for the vent opening and closing and that the shelf would need to be further cut down. As you can imagine, this type of service is rather ridiculous. If they knew that the shelf would need further cutting, they should have NOT installed the unit. I have called N.E.T.R. six (6) times in three weeks, and no one has called me back about this issue. After paying for the unit and for a handyman, it's ridiculous that I have AC that is compromised because no one with the company thought to properly measure the space so that the work by the handyman could be done once. At this point, I'd like for N.E.T.R. to take care of this for me."
Linda O on June 2025
Gervais Plumbing & Heating Inc
Gervais Plumbing & Heating Inc
Customers say: Quick response
76 local quotes requested
18 Years in Business Gervais Mechanical Service LLC is a fully licensed, local, family-run business. With more than 100 years of combined experience, we strive to bring our customers exceptional repair and installation services they can rely on. We offer turnkey solutions for both residential and commercial customers — no job is too large or complex for our expert team.
"Absolute ripoff, along with shady business practices. They were prompt and courteous, but that's about it. The technician came and had to replace a $200 part on my boiler, it took him under an hour to do the work. A simple Google search showed at least 10 places to buy the exact part, all around $200. No other parts were needed for this repair, I researched what is involved. I was charged almost $1000, including their $89 diagnostic fee just to walk in the door. So apparently it's a $600+/hour labor rate? I'm obviously in the wrong line of work. This was not an off hours emergency call either, it was a scheduled appointment in the middle of a weekday. The shadiest part of the entire thing was that on the invoice (that they email you later) they bury all the cost, it's not itemized i.e. labor vs parts cost. It just says replaced (part) = $1000. A super scummy and shady way to run a "professional" business, taking advantage of people who don't know any better. I wouldn't be surprised if they also sell used cars. Never again Gervais. You've all been warned."
Jeffrey J on January 2025
18 Years in Business Gervais Mechanical Service LLC is a fully licensed, local, family-run business. With more than 100 years of combined experience, we strive to bring our customers exceptional repair and installation services they can rely on. We offer turnkey solutions for both residential and commercial customers — no job is too large or complex for our expert team.
"Absolute ripoff, along with shady business practices. They were prompt and courteous, but that's about it. The technician came and had to replace a $200 part on my boiler, it took him under an hour to do the work. A simple Google search showed at least 10 places to buy the exact part, all around $200. No other parts were needed for this repair, I researched what is involved. I was charged almost $1000, including their $89 diagnostic fee just to walk in the door. So apparently it's a $600+/hour labor rate? I'm obviously in the wrong line of work. This was not an off hours emergency call either, it was a scheduled appointment in the middle of a weekday. The shadiest part of the entire thing was that on the invoice (that they email you later) they bury all the cost, it's not itemized i.e. labor vs parts cost. It just says replaced (part) = $1000. A super scummy and shady way to run a "professional" business, taking advantage of people who don't know any better. I wouldn't be surprised if they also sell used cars. Never again Gervais. You've all been warned."
Jeffrey J on January 2025
Cotti-Johnson Heating-Cooling-Electrical
Cotti-Johnson Heating-Cooling-Electrical
Super Service Award
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
1052 local quotes requested
Experiencing issues with your heating, air conditioning, plumbing, or electrical systems? Cotti-Johnson is your reliable one-stop shop for all home comfort needs. From simple fixes to large-scale projects, our professional team handles everything with honesty and expertise. We offer 24/7 emergency services and specialized design services for landscape and indoor lighting. Trust us for top-notch, efficient, and transparent service. Visit our website at callcotti.com or call us at (833) 826-8844 to see how we can improve your home's comfort and efficiency.
"Happy with the work, and the customer service. Will definitely call on them for future work."
Fran P on June 2025
Experiencing issues with your heating, air conditioning, plumbing, or electrical systems? Cotti-Johnson is your reliable one-stop shop for all home comfort needs. From simple fixes to large-scale projects, our professional team handles everything with honesty and expertise. We offer 24/7 emergency services and specialized design services for landscape and indoor lighting. Trust us for top-notch, efficient, and transparent service. Visit our website at callcotti.com or call us at (833) 826-8844 to see how we can improve your home's comfort and efficiency.
"Happy with the work, and the customer service. Will definitely call on them for future work."
Fran P on June 2025
Atlantic Heating & Air Conditioning
Atlantic Heating & Air Conditioning
Customers say: Quality work
79 local quotes requested
63 years of experience
Founded in 1962, Atlantic Heating & Air Conditioning is a family owned and operated company, ready to service you in the Brookline area. We always stand by our work, and our exceptional customer service. Our long term, extremely proficient employees are ready to assist you with any Heating or Air conditioning services. Call us today!
"Very well, above and beyond the call of duty."
Karen S on January 2023
Founded in 1962, Atlantic Heating & Air Conditioning is a family owned and operated company, ready to service you in the Brookline area. We always stand by our work, and our exceptional customer service. Our long term, extremely proficient employees are ready to assist you with any Heating or Air conditioning services. Call us today!
"Very well, above and beyond the call of duty."
Karen S on January 2023
Sila Heating, Cooling, Plumbing and Electrical
Sila Heating, Cooling, Plumbing and Electrical
Customers say: Super punctual
863 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!
"Great, as always. Sila is outstanding. We have a service contract with them for our furnace and AC and they keep them in tip-top shape. And when we have an urgent or emergency situation (heating, cooling, plumbing, electrical), they're who we call."
Jonathan P on November 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!
"Great, as always. Sila is outstanding. We have a service contract with them for our furnace and AC and they keep them in tip-top shape. And when we have an urgent or emergency situation (heating, cooling, plumbing, electrical), they're who we call."
Jonathan P on November 2025
Sentri Homes
Sentri Homes
717 local quotes requested
Sentri Homes is a full-service contractor delivering high-end home additions, whole-home remodels, new custom builds, luxury kitchens, structural framing, roof replacements, and every major renovation. We assign a dedicated project manager to every job, deliver meticulous craftsmanship with clear communication, and back our work with an industry-leading warranty to ensure complete peace of mind on your largest investments. Our in-house team of licensed builders and master craftsmen consistently earns 5-star reviews by turning big visions into stunning, high-value homes—when you need one trusted partner who truly does it all, we’re the proven choice.
Sentri Homes is a full-service contractor delivering high-end home additions, whole-home remodels, new custom builds, luxury kitchens, structural framing, roof replacements, and every major renovation. We assign a dedicated project manager to every job, deliver meticulous craftsmanship with clear communication, and back our work with an industry-leading warranty to ensure complete peace of mind on your largest investments. Our in-house team of licensed builders and master craftsmen consistently earns 5-star reviews by turning big visions into stunning, high-value homes—when you need one trusted partner who truly does it all, we’re the proven choice.
Elton Briskaj
Elton Briskaj
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
Plumbing and heating
"Wonderful. Elton did an amazing job, answered quick and efficiently."
Antonio T on November 2024
Plumbing and heating
"Wonderful. Elton did an amazing job, answered quick and efficiently."
Antonio T on November 2024
Fabio’s Construction
Fabio’s Construction
15 years of experience
Fabio Andrade is the Chief of Operations of Fabio’s Construction, Inc. He started Fabios construction Inc. As a small, one-man, one truck operation in December 2005 as handy man services. He has since obtained both a Home Improvement license and a Contractor Supervisor license, Combined with skills and expertise in a variety of building trades, His ability to carry out his customers’ wishes quickly gave him a positive result in the neighborhoods of Concord,Ma. He grew and built Fabio’s Construction Inc. through his strong community roots, building a solid reputation one customer at a time. our office opened in 2010 allowing us to get to know our customers better through in-person meetings, ensuring a superior service that is exactly what each customer wants.
Fabio Andrade is the Chief of Operations of Fabio’s Construction, Inc. He started Fabios construction Inc. As a small, one-man, one truck operation in December 2005 as handy man services. He has since obtained both a Home Improvement license and a Contractor Supervisor license, Combined with skills and expertise in a variety of building trades, His ability to carry out his customers’ wishes quickly gave him a positive result in the neighborhoods of Concord,Ma. He grew and built Fabio’s Construction Inc. through his strong community roots, building a solid reputation one customer at a time. our office opened in 2010 allowing us to get to know our customers better through in-person meetings, ensuring a superior service that is exactly what each customer wants.
FAQs for boiler repair projects in Waltham, MA
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 Waltham, MA homeowners’ guide to boiler repairs
From average costs to expert advice, get all the answers you need to get your job done.
•Exposed ductwork can be a smart choice even beyond aesthetics. Fortunately, exposed ductwork costs are relatively low, and easy access keeps repair costs to a minimum.
•Find out the average humidifier repair cost, what impacts pricing, and how to save. Get expert tips to budget for your humidifier repair.
Switching from oil to gas heating could impact your savings. This guide will help you understand the cost to convert from an oil furnace to a gas furnace.
If you’re thinking about an alternative to a traditional HVAC system, you may want to consider a heat pump. Read on for more about heat pump systems.
A whole-house humidifier costs between $400 and $800, but can have an ROI of 40%. Learn if adding this HVAC appliance is worth it for you.
If you’re having issues with your heating and cooling system, it’s probably time to discuss these heat pump questions with your HVAC pro.
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