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Tankless water heater repair pros in Cambridge
Whatever plumbing or heating problem you have can be fixed right for a reasonable price. I accept Cash, Check, Credit Cards, PayPal, Venmo, and more.
"Ken is the best!!! Top quality installationâ ¦very professionalâ ¦honest and sincere. Ken has performed many tasks for me in the past and has never ceased to amaze me or let me down. If you want a job done right, you canâ  t go wrong with Ken!!!"
Nancy C on December 2021
Whatever plumbing or heating problem you have can be fixed right for a reasonable price. I accept Cash, Check, Credit Cards, PayPal, Venmo, and more.
"Ken is the best!!! Top quality installationâ ¦very professionalâ ¦honest and sincere. Ken has performed many tasks for me in the past and has never ceased to amaze me or let me down. If you want a job done right, you canâ  t go wrong with Ken!!!"
Nancy C on December 2021
Mr. Rooter Plumbing of Southern Mass is your premier professional plumbing company offering the highest quality and most attentive customer service. We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Please call us today to schedule your appointment! Mr. Rooter 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. Please give us a call today!
"The tech showed up on time. I just thought the price was high just to do a diagnostics only he didn?t seem fully qualified on well pumps."
Bob L on June 2025
Mr. Rooter Plumbing of Southern Mass is your premier professional plumbing company offering the highest quality and most attentive customer service. We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Please call us today to schedule your appointment! Mr. Rooter 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. Please give us a call today!
"The tech showed up on time. I just thought the price was high just to do a diagnostics only he didn?t seem fully qualified on well pumps."
Bob L on June 2025
With several years experience, we work hard to bring each customer the best possible service and quality available. We look forward to working with you on your next project. We welcome your questions.
"Giovanni Colon was extremely competent, informed and well spoken. I would definitely recommend him."
Jonathan M on July 2023
With several years experience, we work hard to bring each customer the best possible service and quality available. We look forward to working with you on your next project. We welcome your questions.
"Giovanni Colon was extremely competent, informed and well spoken. I would definitely recommend him."
Jonathan M on July 2023
Since our founding, ER Services Plumbing & Heating has been known for quality services, exceptional efficiency, and the highest level of professionalism. No matter what service you’re looking for, we guarantee to not only meet but exceed your expectations and ensure your full satisfaction. We have been servicing the Merrimack Valley and North Shore for 15+ years of professional experience. We excel in High-Efficiency Boilers, Water Heater Replacement, New Construction, Remodels, and Repairs. - Call today!
"Great work Great company"
A N on March 2024
Since our founding, ER Services Plumbing & Heating has been known for quality services, exceptional efficiency, and the highest level of professionalism. No matter what service you’re looking for, we guarantee to not only meet but exceed your expectations and ensure your full satisfaction. We have been servicing the Merrimack Valley and North Shore for 15+ years of professional experience. We excel in High-Efficiency Boilers, Water Heater Replacement, New Construction, Remodels, and Repairs. - Call today!
"Great work Great company"
A N on March 2024
Since 1979, we've provided the highest quality protection against plumbing, heating, cooling and drain problems for residential, commercial and property managers in the Merrimack Valley and southern New Hampshire. At MillTown Plumbing, Heating, HVAC, and Drain Cleaning, we're a family owned and operated business. We know the value of fast service, from a professional and reliable team. Give us a call today at (617) 725-2674! We look forward to serving you.
"STAY AWAY. Numerous issues and they will cost you more money without you knowing it. I just found out that I was on a **DO NOT SERVICE** list (after all the grief they have given me.) I am ticked off. Here is a summary due to the character limit: 1. They installed a faulty HTP tankless hybrid water heater. I argued with them for what I think was a good year before a HTP tech finally determined that I was right. Replaced it with a Rinnai RUR199in. 2. They took (stole) my oval ductwork and replaced it. I was fine with the replacement. I looked the other way but it was expensive and they never asked - they just hauled it away. Most homeowners probably do not realize how expensive and unusual that oval ductwork is. I could have even recycled it at a profit. 3. I recommended them to a neighbor only to find cops all over their home one day. Their plumber stole their special needs kids controlled medications after having them go into other rooms to turn on and off the faucets. I just chalked it up to a bad apple. 4. HUGE ROOKIE mistake. They short-cycled the new air handler. Vent was right next to the main return (2in. away.) Unecessary wear and tear, high electric and gas usage, and discomfort. Whatever was coming out was immediately suck back in. Unfortunately I did not realize this until a couple years later. 5. HUGE ROOKIE mistake. They never installed the 2-stage wiring. See directly above. Look it up. HUGE discrepancies in temperatures and sky high bills. Premature wear and tear. I wrote Freddy Jr. about this which might be the reason why I am on their list. But still, that is their job to get it right and not mine. Most people would have no clue for the life of their system. 6. They did not hook up the high-limit kill switch/float on the condensation pump which led to a flood and destroyed antiques. I hooked it up in less than 10 minutes. 7. I was told one day that the original manger was fired because he was skimming clients from the company. 8. There is no check valve on the recirculation line which they installed on the new tankless they replaced. I believe it is code and now I have to hire someone else ([business name removed]) to fix their screwup which likely killed my internal recirculation pump. Again, unecessary wear and tear along with high energy bills. I was willing to look the other way on so many things but the truth is they get away with this because most homeowners do not know any better. In other cases, I figured that no one is perfect and we all make mistakes. But then to find out that I was blacklisted a few years later because I called them out on their BS after I needed their help yesterday? The only thing I can think is that I ended up costing them more money on things they should have done properly in the first place. It is a company that needs better oversight and apparently has awful management. I am not bragging but I have an advanced engineeering background creating petroleum engineering training material for big oil (aka plumbing on steroids--makes this look like childs play), programming, developing systems for hydroponics, working with heat and waste recovery systems, fixing combustion engines, and building computers for over 20 years. My point is that I noticed a lot of things that most people would overlook because I know how many things work. I called them out and that is the only explanation as to why I could have been blacklisted. But do yourself a favor and go with [business name removed] or [business name removed] instead. It is not to say that others cannot screw up, but this is my experience with them and the straw that broke the camels back. Mention that you read this here and thank you. Perhaps the next company will not mess you up under the guise/protection of teamsters and protectionist unions that overcharge with ridiculous licensing requirements that ends up meani..."
Charles L on January 2024
Since 1979, we've provided the highest quality protection against plumbing, heating, cooling and drain problems for residential, commercial and property managers in the Merrimack Valley and southern New Hampshire. At MillTown Plumbing, Heating, HVAC, and Drain Cleaning, we're a family owned and operated business. We know the value of fast service, from a professional and reliable team. Give us a call today at (617) 725-2674! We look forward to serving you.
"STAY AWAY. Numerous issues and they will cost you more money without you knowing it. I just found out that I was on a **DO NOT SERVICE** list (after all the grief they have given me.) I am ticked off. Here is a summary due to the character limit: 1. They installed a faulty HTP tankless hybrid water heater. I argued with them for what I think was a good year before a HTP tech finally determined that I was right. Replaced it with a Rinnai RUR199in. 2. They took (stole) my oval ductwork and replaced it. I was fine with the replacement. I looked the other way but it was expensive and they never asked - they just hauled it away. Most homeowners probably do not realize how expensive and unusual that oval ductwork is. I could have even recycled it at a profit. 3. I recommended them to a neighbor only to find cops all over their home one day. Their plumber stole their special needs kids controlled medications after having them go into other rooms to turn on and off the faucets. I just chalked it up to a bad apple. 4. HUGE ROOKIE mistake. They short-cycled the new air handler. Vent was right next to the main return (2in. away.) Unecessary wear and tear, high electric and gas usage, and discomfort. Whatever was coming out was immediately suck back in. Unfortunately I did not realize this until a couple years later. 5. HUGE ROOKIE mistake. They never installed the 2-stage wiring. See directly above. Look it up. HUGE discrepancies in temperatures and sky high bills. Premature wear and tear. I wrote Freddy Jr. about this which might be the reason why I am on their list. But still, that is their job to get it right and not mine. Most people would have no clue for the life of their system. 6. They did not hook up the high-limit kill switch/float on the condensation pump which led to a flood and destroyed antiques. I hooked it up in less than 10 minutes. 7. I was told one day that the original manger was fired because he was skimming clients from the company. 8. There is no check valve on the recirculation line which they installed on the new tankless they replaced. I believe it is code and now I have to hire someone else ([business name removed]) to fix their screwup which likely killed my internal recirculation pump. Again, unecessary wear and tear along with high energy bills. I was willing to look the other way on so many things but the truth is they get away with this because most homeowners do not know any better. In other cases, I figured that no one is perfect and we all make mistakes. But then to find out that I was blacklisted a few years later because I called them out on their BS after I needed their help yesterday? The only thing I can think is that I ended up costing them more money on things they should have done properly in the first place. It is a company that needs better oversight and apparently has awful management. I am not bragging but I have an advanced engineeering background creating petroleum engineering training material for big oil (aka plumbing on steroids--makes this look like childs play), programming, developing systems for hydroponics, working with heat and waste recovery systems, fixing combustion engines, and building computers for over 20 years. My point is that I noticed a lot of things that most people would overlook because I know how many things work. I called them out and that is the only explanation as to why I could have been blacklisted. But do yourself a favor and go with [business name removed] or [business name removed] instead. It is not to say that others cannot screw up, but this is my experience with them and the straw that broke the camels back. Mention that you read this here and thank you. Perhaps the next company will not mess you up under the guise/protection of teamsters and protectionist unions that overcharge with ridiculous licensing requirements that ends up meani..."
Charles L on January 2024
We have the experience and we are committed to providing quality workmanship and superior customer service on all our applications. We at Local Plumbing and Heating strive to maintain our reputation as a high quality, very service oriented company with our main focus being customer satisfaction.
"Andrew is very conscientious. There was an issue that he needed to bring in an electrician on, so we were without heat for a few days, but he was able to solve the other issues and make sure everything was taken care of."
Brad S on February 2025
We have the experience and we are committed to providing quality workmanship and superior customer service on all our applications. We at Local Plumbing and Heating strive to maintain our reputation as a high quality, very service oriented company with our main focus being customer satisfaction.
"Andrew is very conscientious. There was an issue that he needed to bring in an electrician on, so we were without heat for a few days, but he was able to solve the other issues and make sure everything was taken care of."
Brad S on February 2025
In 2008, Landry Mechanical Inc Plumbing HVAC & Electric began serving residents throughout Worcester and Middlesex County. We started out just serving 20 systems a year and working on systems that our competitors ignored, such as wood systems or alternative energy systems. In putting our customers first, our reputation for quality work grew, as did our business.
"Rather not"
Renee M on May 2025
In 2008, Landry Mechanical Inc Plumbing HVAC & Electric began serving residents throughout Worcester and Middlesex County. We started out just serving 20 systems a year and working on systems that our competitors ignored, such as wood systems or alternative energy systems. In putting our customers first, our reputation for quality work grew, as did our business.
"Rather not"
Renee M on May 2025
Spencer Home Services (previously Holland Energy) is a family-owned and operated business founded by Peter Holland. Based in Peabody, MA, we have served homes and businesses across Essex County and the North Shore for 40+ years. Spencer offers a range of services and home improvements, including drain clearing, bathroom installations, tree root removals, and more. Over the years, we've earned a reputation for being reputable, dependable, and dedicated to our community. We strive to create intimate experiences, ensuring you feel respected and not just another job on our list. From your first call with us to the moment your job is completed, you can feel confident that you're in the best hands. Same Day Service - We are responsive and proactive when you need us
"null"
Frank H on May 2025
Spencer Home Services (previously Holland Energy) is a family-owned and operated business founded by Peter Holland. Based in Peabody, MA, we have served homes and businesses across Essex County and the North Shore for 40+ years. Spencer offers a range of services and home improvements, including drain clearing, bathroom installations, tree root removals, and more. Over the years, we've earned a reputation for being reputable, dependable, and dedicated to our community. We strive to create intimate experiences, ensuring you feel respected and not just another job on our list. From your first call with us to the moment your job is completed, you can feel confident that you're in the best hands. Same Day Service - We are responsive and proactive when you need us
"null"
Frank H on May 2025
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
"Quick response and good service. Price is reasonable."
Jing Z on March 2025
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
"Quick response and good service. Price is reasonable."
Jing Z on March 2025
Growing up, my Dad had a someone for just about every issue that life could throw at him. Car’s making a funny sound? “Call Mr. Genese.” No hot water? “Call Mr. Martin.” Need a sport coat for my first job interview, “Call Mr. Antista.” Those people cared about my Dad and his family, they did great work, and most important, their advice could be trusted. Yellow Dog is bringing back old school customer service, with plumbers and HVAC technicians who are highly technically competent, and more important, who really care about your family and can be trusted to give you the best advice. We believe that old school customer service, paired with the latest technology to make setting up your appointment and communicating with us easy, and of course the highest quality work is what our customers deserve. Thank you for taking the time to learn a little more about us, and we hope you’ll give us a chance to earn your trust. We’re Yellow Dog – and we’re always by your side. Pat Dunn, CEO
Growing up, my Dad had a someone for just about every issue that life could throw at him. Car’s making a funny sound? “Call Mr. Genese.” No hot water? “Call Mr. Martin.” Need a sport coat for my first job interview, “Call Mr. Antista.” Those people cared about my Dad and his family, they did great work, and most important, their advice could be trusted. Yellow Dog is bringing back old school customer service, with plumbers and HVAC technicians who are highly technically competent, and more important, who really care about your family and can be trusted to give you the best advice. We believe that old school customer service, paired with the latest technology to make setting up your appointment and communicating with us easy, and of course the highest quality work is what our customers deserve. Thank you for taking the time to learn a little more about us, and we hope you’ll give us a chance to earn your trust. We’re Yellow Dog – and we’re always by your side. Pat Dunn, CEO
FAQs for tankless water heater installation projects in Cambridge, MA
Professional flushing services for tankless water heaters run about $200 per visit. This essential maintenance procedure eliminates mineral deposits from critical components, particularly the heat exchanger. While homeowners can purchase DIY flushing kits for $50 to $100, professional service offers the advantage of thorough cleaning with proper techniques. Professional maintenance also includes inspection of additional components that might need attention.
Industry experts and manufacturers recommend annual maintenance for tankless water heaters, with more frequent service (every six months) for homes with challenging water conditions. This regular attention prevents efficiency losses and extends the unit's operational lifespan. Watch for warning signs like reduced water temperature, inconsistent performance, or system error codes that might indicate maintenance is needed sooner than scheduled.
Neglecting regular maintenance allows mineral scale to accumulate within your system, restricting water flow and reducing heating efficiency. This forces your unit to work harder, consuming more energy while delivering less satisfactory performance. Over time, this strain can lead to component failures, inconsistent water temperatures, and premature system replacement. Additionally, most manufacturers require documentation of regular maintenance to honor warranty coverage for major components.
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