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Find Tankless water heater repair pros in Waltham

"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


Avatar for Comfort Cool Mass

Comfort Cool Mass

80 South St, Apt. 2
4.88(
8
)
Approved Pro

Comfort Cool Mass

80 South St, Apt. 2
4.88(
8
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
5 years of experience

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


Avatar for Spencer Home Services

Spencer Home Services

67 Foster St
4.97(
20
)
Approved Pro

Spencer Home Services

67 Foster St
4.97(
20
)
Approved Pro
Customers say: Quality work
45 years of experience
Free onsite estimate

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


Avatar for Maffei Plumbing and HVAC, LLC

Maffei Plumbing and HVAC, LLC

383 Main Street
3.00(
1
)
Approved Pro

Maffei Plumbing and HVAC, LLC

383 Main Street
3.00(
1
)
Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
80 local quotes requested

At Maffei Plumbing and HVAC, LLC, we are committed to your comfort. With an experienced and qualified staff to provide quick service for any service needed. We can solve any problem with a friendly face. Give us a call for a free estimate.

"Ok!"

Dawn D on October 2021

At Maffei Plumbing and HVAC, LLC, we are committed to your comfort. With an experienced and qualified staff to provide quick service for any service needed. We can solve any problem with a friendly face. Give us a call for a free estimate.

"Ok!"

Dawn D on October 2021


Avatar for Addario, Inc.

Addario, Inc.

1 Jewel Dr Suite 324
3.98(
232
)
Approved Pro

Addario, Inc.

1 Jewel Dr Suite 324
3.98(
232
)
Approved Pro
Customers say: True professional
573 local quotes requested
27 years of experience

Over 70,000 Massachusetts homeowners trust Addario's for peace of mind. For nearly 30 years, we've kept homes comfortable with heat that stays on, clean water, and reliable systems. We've served 50,000+ families with true craftsmanship and integrity. A+ BBB rated with the region's strongest warranty, we're the company your neighbors recommend. As one of the state's fastest-growing companies, we're licensed, insured, and fully equipped for plumbing, heating, cooling, electrical, drain cleaning, sewer replacement, generators, bathroom remodels, and more. Our 50+ expert team doesn't just fix problems—we prevent them. Every service includes a personalized Homeowner's Maintenance Checklist to protect your investment. When your heating or cooling isn't working right, we don't guess. We fix it fast, completely, and correctly the first time. You just call Addario's—and consider it handled.

"The job was done correctly, more efficient than a local plumber."

Marjorie D on October 2025

Over 70,000 Massachusetts homeowners trust Addario's for peace of mind. For nearly 30 years, we've kept homes comfortable with heat that stays on, clean water, and reliable systems. We've served 50,000+ families with true craftsmanship and integrity. A+ BBB rated with the region's strongest warranty, we're the company your neighbors recommend. As one of the state's fastest-growing companies, we're licensed, insured, and fully equipped for plumbing, heating, cooling, electrical, drain cleaning, sewer replacement, generators, bathroom remodels, and more. Our 50+ expert team doesn't just fix problems—we prevent them. Every service includes a personalized Homeowner's Maintenance Checklist to protect your investment. When your heating or cooling isn't working right, we don't guess. We fix it fast, completely, and correctly the first time. You just call Addario's—and consider it handled.

"The job was done correctly, more efficient than a local plumber."

Marjorie D on October 2025


Avatar for Yellow Dog Home Services, LLC

Yellow Dog Home Services, LLC

19 Kearney Rd
5.00(
3
)
Approved Pro

Yellow Dog Home Services, LLC

19 Kearney Rd
5.00(
3
)
Approved Pro
69 local quotes requested
1 years of experience

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

"Exceptional service, quick to response and knowledgeable. They came over the same day in the morning and completed the water tank replacement within hours. "

Kit L on September 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

"Exceptional service, quick to response and knowledgeable. They came over the same day in the morning and completed the water tank replacement within hours. "

Kit L on September 2025


Avatar for Advanced Energy Concepts of Worcester, Inc.

Advanced Energy Concepts of Worcester, Inc.

153 Southbridge Street
4.45(
123
)
Approved Pro

Advanced Energy Concepts of Worcester, Inc.

153 Southbridge Street
4.45(
123
)
Approved Pro
Customers say: Quality work
39 local quotes requested
35 years of experience

Advanced Energy Concepts was established in your community in 1990. Our main focus is energy conservation. Advanced Energy concepts also does a variety of plumbing services for your residential home

"Top notch vikki had her guys here asap to check my old a/c unit out when the tech said it was gone that Monday the appraiser came out 2 days after that had quote and a week after that install in 1 day . Guys where awesome new what they where doing had it done in no time... highly recommend for any a/c our heating issues awesome people..thank you advance especially vikki she was awesome. "

Leo B on July 2025

Advanced Energy Concepts was established in your community in 1990. Our main focus is energy conservation. Advanced Energy concepts also does a variety of plumbing services for your residential home

"Top notch vikki had her guys here asap to check my old a/c unit out when the tech said it was gone that Monday the appraiser came out 2 days after that had quote and a week after that install in 1 day . Guys where awesome new what they where doing had it done in no time... highly recommend for any a/c our heating issues awesome people..thank you advance especially vikki she was awesome. "

Leo B on July 2025


Avatar for Matt Evans Plumbing and Heating

Matt Evans Plumbing and Heating

50 Highland Ave
4.95(
59
)
Approved Pro

Matt Evans Plumbing and Heating

50 Highland Ave
4.95(
59
)
Approved Pro
Customers say: True professional
59 local quotes requested
12 years of experience

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.

"They did a wonderful job and took their time explaining things to me as I was very pleased with the job that they both did. I will continue to use this company and will tell friends about them.."

Mary C on July 2025

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.

"They did a wonderful job and took their time explaining things to me as I was very pleased with the job that they both did. I will continue to use this company and will tell friends about them.."

Mary C on July 2025


Avatar for Colon Plumbing LLC

Colon Plumbing LLC

5023 Washington Street
5.00(
11
)
Approved Pro

Colon Plumbing LLC

5023 Washington Street
5.00(
11
)
Approved Pro
Customers say: Quick response
17 years of experience
Warranties offered

At Colon Plumbing LLC. 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 the start to the 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. We clean as we go. Estimates $110.00 credit toward Job

"Colon Plumbing was very responsive and reasonably priced. Provided next day service for water heater replacement. I will definitely refer them to everyone I know. "

samantha c on June 2025

At Colon Plumbing LLC. 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 the start to the 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. We clean as we go. Estimates $110.00 credit toward Job

"Colon Plumbing was very responsive and reasonably priced. Provided next day service for water heater replacement. I will definitely refer them to everyone I know. "

samantha c on June 2025


Avatar for Mr. Rooter Plumbing of Southern Mass

Mr. Rooter Plumbing of Southern Mass

623 R Wareham St.
4.11(
560
)
Approved Pro

Mr. Rooter Plumbing of Southern Mass

623 R Wareham St.
4.11(
560
)
Approved Pro
Customers say: True professional
17 local quotes requested
35 years of experience

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!

"Done very professionally."

Tachi I 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!

"Done very professionally."

Tachi I on June 2025

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