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Top-Rated Tankless water heater repair pros in Stow - Updated Nov 2026

Avatar for David M. Clay Plumbing& Heating
David M. Clay Plumbing& Heating
4.1(
178
)
Tankless Water Heater - Repair

Serving Stow, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2005

Free estimates

Warranties offered

"David helped me install Heat Pump Water Heater that I purchased from Home Depot. It was his first time installing a heat pump water heater but he made sure it gets installed as per code and right way. He worked with me to install stop valve in the end."
Plumbing Project
On demand waters for nail salon
Plumbing Project
Installed 6 new wall mounted gas water boilers 96 Afue
Converted a old fire station to a residential home and this is one of the bathroom we installed

+21

Response time1 day
Response rate100%
18 neighbors recently requested a quote
Avatar for Rodenhiser Home Services
Rodenhiser Home Services
4.4(
522
)
Tankless Water Heater - Repair

Serving Stow, MA and surrounding areas

Approved

In business since 1928

Emergency services offered

Warranties offered

"Not easy finding an HVAC company willing to install a gas steam boiler. These guys did it all and did it well, removing the old oil burner and oil tank, installing a Weil McClain boiler including steam piping and hot water, installing gas piping, electrical and plumbing, including all inspections, even leaving me a temporary hot water heater until the furnace installation was completed. They fully accommodated my schedule as well. The town electrical inspector who came after installation was complete confirmed their good reputation."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
28 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Landry Mechanical, Inc.- Plumbing
Landry Mechanical, Inc.- Plumbing
4.5(
116
)
Tankless Water Heater - Repair

Serving Stow, MA and surrounding areas

Approved

In business since 2008

Emergency services offered

Warranties offered

"The repair to my refrigerator water line was quick the technician (Jorge) was great explained my options was courteous and professional. 5 star service thank you !"
Ductless Install
Various photos
Various photos
Various photos
Various photos

+55

Response time3 days
244 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Advanced Energy Concepts of Worcester, Inc.
Advanced Energy Concepts of Worcester, Inc.
3.8(
140
)
Tankless Water Heater - Repair

Serving Stow, MA and surrounding areas

Approved

In business since 1990

Free estimates

Emergency services offered

"Aron did a excellent job repairing my hot water tank. He replaced the control valve and it still did not worked. He took it all apart right to the pilot light and found the orface was blocked. He is very professional and a good personalty.He was a pleasure to have at my home and he is an asset to your company."
Response time3 days
Response rate85%
25 neighbors recently requested a quote
Papalia Home Service
4.8(
5
)
Tankless Water Heater - Repair

Serving Stow, MA and surrounding areas

Approved (Corporate)

In business since 1990

Free estimates

Credit card accepted

Papalia Home Services is a business that has been serving the Boston Metro West Area since 1990. With over 30 years of service under our belts, we've grown into the most dedicated plumbing & heating service in the Bay State, many thanks to our fully-trained technicians. No matter if it's installation, repair, replacement, you name it—our staff is trained how to handle the latest technology and will always show up to your home with a fully stocked truck ready to go! \n

Avatar for Rodenhiser Home Services, Inc.
Rodenhiser Home Services, Inc.
4.7(
6
)
Tankless Water Heater - Repair

Serving Stow, MA and surrounding areas

Approved (Corporate)

In business since 1928

Free estimates

Emergency services offered

Rodenhiser Home Services provides residential plumbing repairs, maintenance, and installations across Massachusetts communities. Serving local homeowners since 1928, our plumbing team helps with leaking pipes, clogged drains, faucets and toilets, water heaters, sump pumps, and whole-home water treatment.\n\nWhether you have no hot water, a recurring drain problem, or a plumbing upgrade in mind, we explain our findings and present upfront options before you authorize the work. Our services include tank and tankless water heaters, fixture replacement, water piping, drain clearing, and water-filtration solutions.\n\nOur Plumbing, HVAC Service, HVAC Installation, and Electrical profiles represent the same Rodenhiser Home Services, Inc. company, organized by service category. Our plumbing expertise is backed by professional workmanship and respect for your home.\n\nTell us what is happening and we can arrange your plumbing appointment. Ask about free water testing while our plumbers are onsite!

Sump Pump
Whole Home Filer
Water Filtration
Shower Fixtures
Pipe Rebuild

+7

Response time1 day
19 neighbors recently requested a quote
Avatar for Water Heater Installation ProfessionalsWHIP
Water Heater Installation ProfessionalsWHIP
4.6(
164
)
Tankless Water Heater - Repair

Serving Stow, MA and surrounding areas

In business since 2007

Free estimates

Emergency services offered

"Jake was responsive and showed up on time. He recommended a solution that would ensure that our A/C condensation pipes do not corrode quickly. He repaired the pipes that had corroded and also repaired the plastic vapor barrier that was cut when the repairs started. He even cleaned up the broken ceiling tiles.  We will use Jake/Peterson Plumbing to repair a few leaky faucets and we highly recommend using Jake at Peterson Plumbing.
"
Navien water heater
Navien Combi Boiler
HTP Firetube
Recommended by95%of homeowners
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