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

Avatar for Robert Johnson Plumbing
Robert Johnson Plumbing
5.0(
328
)
Tankless Water Heater - Repair

Serving Hudson, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2009

Free estimates

Customers say: True professional

"I had Rob install a tankless hot water heater, whole house water filter, and run a new gas line for my gas stove conversion. He was very professional and and was quick to set an appointment. The whole job took a single day and he even removed and disposed of the old outdated appliances. Quality work at reasonable prices! Would highly recommend."
Response time2 hrs
Response rate96%
37 neighbors recently requested a quote
Joe Belanger, Plumbing Services
4.5(
130
)
Tankless Water Heater - Repair

Serving Hudson, NH and surrounding areas

Approved

In business since 2003

Free estimates

Customers say: Quality work

"Our water heater burst over the weekend. We were desperate to get it replaced first thing Monday. Joe returned our call immediately, gave us a more than reasonable quote, was here close to noon, installed new equipment..voila HOT WATER again! Really efficient, nice guy, great job!! I highly recommend him!"
Buderus oil fired forced hot water heating system
Oil fired buderus
Navien 150 high efficiency wall mounted boiler
Water heater
Powervented water heater

+1

Response time7 hrs
Recommended by94%of homeowners
Avatar for Daigle Plumbing Heating and Cooling
Daigle Plumbing Heating and Cooling
4.4(
43
)
Tankless Water Heater - Repair

Serving Hudson, NH and surrounding areas

Approved

In business since 1981

Free estimates

Credit card accepted

"John Maloney Hudson, NH The repair was completed today in an excellent and professional manner. I was completely satisfied with the repair and replacement of the damaged toilet seals and flange. I recommend Daigle Plumbing for all my future needs for sure. Great service great efficient work. Thanks"
9 ZONE On Boiler
3 Zone Boiler
4 Zone Boiler with storage Tank!!!
Oil Tank
6 Zone Boiler W/Storage Tank

+12

Response time1 day
110 neighbors recently requested a quote
Recommended by63%of homeowners
Avatar for A Really Good Plumber
A Really Good Plumber
4.5(
46
)
Tankless Water Heater - Repair

Serving Hudson, NH and surrounding areas

Approved

In business since 2007

Emergency services offered

Credit card accepted

"He was very knowledgeable and very friendly and his prices are very reasonable compared to other contractors and he did a great job installing wyn well tank I would definitely recommend him for any repairs"
Additional Photos
Additional Photos
3 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Expedition Plumbing
Expedition Plumbing
5.0(
22
)
Tankless Water Heater - Repair

Serving Hudson, NH and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"?I couldn't be happier with my new water heater installation. The team was professional, punctual, and incredibly efficient. They took the time to explain the new unit's features and ensured the workspace was spotless before leaving. ?It?s a relief to have hot water back with zero stress. If you need a reliable install, I highly recommend Expedition!"
67 neighbors recently requested a quote
Avatar for Skovron Mechanical Services
Skovron Mechanical Services
4.1(
85
)
Tankless Water Heater - Repair

Serving Hudson, NH and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"Keith did a great job. Very professional, right on time, got the job done fast and done right at a very competitive price. Took the time after installation to show me the job and explain the features of the water heater, and also gave me information on how to properly maintain the unit and other services he offers. I would strongly recommend anyone consider Keith's services."
Commercial Cooling
Before Oil Boiler
Old
Oil Boiler
HVAC Roof Top Unit

+19

Response time9 hrs
Response rate100%
Recommended by84%of homeowners
Avatar for Water Heater Installation ProfessionalsWHIP
Water Heater Installation ProfessionalsWHIP
4.6(
164
)
Tankless Water Heater - Repair

Serving Hudson, NH and surrounding areas

In business since 2007

Free estimates

Emergency services offered

"Jake answered the phone when I called the first time, he came out to assess what was needed, he provided the estimate, and then proceeded to do the work - all the same day! He replaced our 15 yr old water heater, including a new pressure expansion tank, piping, fittings and valves. The price was very fair and the work was very good. Jake was friendly, informative, and professional, we will use him again for future work."
Navien water heater
Navien Combi Boiler
HTP Firetube
Recommended by95%of homeowners
Avatar for Walley’s Heating & Air Conditioning
Walley’s Heating & Air Conditioning
4.8(
110
)
Tankless Water Heater - Repair

Serving Hudson, NH and surrounding areas

In business since 2010

Free estimates

Emergency services offered

"Christian was very knowledgeable about our water heater and explained everything as he went along testing different issues that might be causing the problem. He was professional and gave me several helpful tips on upkeep of my Rinnai that 2 other companies that had serviced the unit over the years had not bothered to mention. i absolutely would recommend Walley to anyone needing HVAC work."
Three-Zone Viessmann® Boiler.
Daikin® White Emura Indoor Unit
Viessmann® Wall Hung Boilers Fit in Tight Spaces.
Daikin® Silver Emura Indoor Unit
Viessmann®. A Perfect Fit.

+56

Response time12 hrs
Response rate100%
Recommended by95%of homeowners
Avatar for Sila Heating, Cooling, Plumbing and Electrical
Sila Heating, Cooling, Plumbing and Electrical
4.5(
5,405
)
Tankless Water Heater - Repair

Serving Hudson, NH and surrounding areas

In business since 1989

Free estimates

Emergency services offered

"Sila Heating and Air Conditioning is the only service I found that can service my Buderus oil burner. John was the tech this time and he did an excellent job of taking care of the burner and then explaining the problem that arose with my chimney liner. Since I didn't have heat or hot water until the liner was fixed, I had to use a company I didn't know as an emergency repair. I was able to speak with their tech using the information provided by John and therefore felt comfortable with the costly repair. John even came back after his last call to turn the burner back on. I have the warranty on my burner so I pay a discounted price and have the coverage if I need it."
Additional Photos
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Additional Photos

+6

Response time2 days
Response rate100%
11 neighbors recently requested a quote
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