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Find Water heater repair or service pros in Chelmsford

Avatar for J.Griffin Heating & Plumbing
J.Griffin Heating & Plumbing
4.9(
245
)

Serving Chelmsford, MA and surrounding areas

Approved

In business since 1981

Free estimates

Emergency services offered

"Installed new boiler and water tank and work was satisfying and service was good and prompt. Very knowledgeable professional and get it done in just one day. I would recommend other if they need to repair/upgrade their heating system"
Navien
Medford Ma
Malden Ma
Saugus Ma
Andover Ma

+64

Response time11 hrs
4 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Joe Montbleau Plumbing & Heating
Joe Montbleau Plumbing & Heating
5.0(
29
)

Serving Chelmsford, MA and surrounding areas

Approved

In business since 2019

Warranties offered

Small jobs welcome

"Given the fact that having a water heater fail is never a fun experience, Joe and his team did such a fantastic job of making the situation so much better for us. Honest, hard working, fair pricing, and quality work. They were honestly a lifesaver given my wife was recently pregnant and being without hot water is not an option. They came out quickly for the estimate and there the next day for the install. Professional and courtesy and all around great team. Highly recommend!!!"
Kohler Cast Iron Tub
Kohler Shower Valve
New Vanity with Moen Widespread Lav Faucet
Kohler Toilet
In-Law Kitchen Sink with Cook Top

+15

Response time7 hrs
Recommended by100%of homeowners
Avatar for Doug Anderson Plumbing & Heating
Doug Anderson Plumbing & Heating
4.8(
34
)

Serving Chelmsford, MA and surrounding areas

Approved

In business since 2014

Emergency services offered

Small jobs welcome

"I needed 2 backflow preventers replaced , a water heater repaired and a to0ilet repaired. I had a quote from a very famous local plumbing/heating company for $4000! I called Doug for a second opinion and he came in at HALF the price!! and that was AFTER I showed him the first quote! He didn't seem surprised at all about the first quote. Not only was he half the price but he pointed out that my 6 year warranty on my water heater had 6 months left and said I could get a new one thru that warranty for $100!!! He took care of going thru the company getting me the new heater. He completed the job in a few hours. I will NEVER call another plumber again! My recommendation is to run, not walk, to get Doug for your needs. On top of that he is so very nice. I would give 10 stars if I could."
Toilet
Stand in Shower with diverter and hand held
Stand in Shower with diverter and hand held
Vessel Sink
Toilet

+26

Response time1 day
Recommended by85%of homeowners
Avatar for RezySave Plumbing and Heating
RezySave Plumbing and Heating
5.0(
14
)

Serving Chelmsford, MA and surrounding areas

Approved

Warranties offered

Small jobs welcome

Credit card accepted

"I had the pleasant experience of having Mike repair my shower fixture. He was very polite as well as professional. He did a fantastic job and if it were not for Mike keen eye, my living room ceiling could have been damaged due to the leak he had found behind the fixture he had replaced. He is an asset to your company, don't let him slip through your hands. Thank you again Mike !!!!"
Water heater install
Hybrid water heater
215 neighbors recently requested a quote
Scott's Plumbing and Heating Services, LLC
4.9(
11
)

Serving Chelmsford, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2012

Free estimates

Credit card accepted

"Have used Scott a few times already. Great service. Needed a shower valve replaced. Used him to install a new under the cabinet kick plate heater. Also needed some old cast iron radiators disconnected and the feeds and returns disconnected when we switched over to a new system. Highly recommend "
Response time4 hrs
Recommended by9%of homeowners
Avatar for Heavy Doody Plumbing & Heating
Heavy Doody Plumbing & Heating
4.9(
19
)

Serving Chelmsford, MA and surrounding areas

Approved

In business since 2013

Emergency services offered

Small jobs welcome

"I had an incredible experience. My water heater was leaking and ready to let go. Brian had contacted me. He set up an appointment the next morning. The two gentleman ( plumbers ) came in. Removed the old water heater. Installed the New water heater. And updated the vent piping because it was old and out of code. They did a wonderful job. And I cannot speak highly enough of them , the speedy work and their professionalism. I now have a new plumber for all my plumbing needs. Thank you."
back flow  for sprinkler sytym
2nd meter install
finish
finish
finish

+26

Response time4 hrs
3 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Sila Heating, Cooling, Plumbing and Electrical
Sila Heating, Cooling, Plumbing and Electrical
4.5(
5,208
)

Serving Chelmsford, MA and surrounding areas

Approved (Corporate)

In business since 1989

Free estimates

Emergency services offered

"Sila saved me!! Of course right when fall is rolling around my heater broke! The job was quick and affordable! Their amazing customer service is also a huge factor why I will be using Sila again, especially Amy R. In management!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+6

Response time2 days
60 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Precision Plumbing & HVAC, LLC
Precision Plumbing & HVAC, LLC
5.0(
23
)

Serving Chelmsford, MA and surrounding areas

Approved

In business since 2010

Credit card accepted

Customers say: Quick response

"On a Saturday while trying to fix a leak in my toilet, i stupidly cracked the tank. The toilet was old enough that I would need to fully replace the toilet. I reached out to Marcin not expecting to hear from him until Monday. Marcin emailed me back on a Sunday asking for questions and photos so he could scope the job. Because we were without a main toilet, Marcin moved his schedule around to come to our house on Monday! He walked me through which toilet specs i should buy, and I ran out and got a toilet, and him and his assistant came over, and had the remaining parts on hand to finish the job quickly! Marcin and his assistant were also very courteous and were wearing masks the entire time they were in my house. I would not hesitate to reach out to Precision Plumbing for my next plumbing job and/or emergency"
Response time2 hrs
1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for MillTown Plumbing, Heating, Cooling and Electrical - Plumbing
MillTown Plumbing, Heating, Cooling and Electrical - Plumbing
4.5(
315
)

Serving Chelmsford, MA and surrounding areas

Approved

In business since 1979

Warranties offered

Small jobs welcome

"Milltown was exceptionally responsive (before, during and after) the work was performed. Across the Milltown organization, they were responsive to my questions about water heater selection; Mike was responsive and a partner in selecting the best location for the new unit and after, Milltown and Mike were immediately responsive when part of the unit was not operating as expected. Milltown is a solid organization that takes pride in their work."
Team Photos
Team Photos
Team Photos
Water Heater Service
Water Heater Service

+4

Response time3 days
4 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Armory Plumbing Inc.
Armory Plumbing Inc.
5.0(
6
)

Serving Chelmsford, MA and surrounding areas

Approved

In business since 2024

Emergency services offered

Warranties offered

Armory Plumbing Inc. is your trusted local plumbing and heating company serving Middlesex and Essex Counties, MA. With over 10 years of experience, we specialize in same-day plumbing repairs, boiler installations, water heater replacements, and full heating solutions. Our team takes pride in delivering fast, reliable service with upfront pricing and a 2-year labor warranty on all installations—something that sets us apart from the competition.\n\nFrom burst pipes and fixture installs to high-efficiency boiler and water heater upgrades, we make sure every job is done right the first time. At Armory Plumbing, we believe in treating every customer’s home as if it were our own, providing honest solutions and lasting results.\n\n📍 Serving: Middlesex & Essex Counties, MA\n✅ Same-day plumbing & heating service\n✅ Water heaters, boilers & full installs\n✅ 2-Year Labor Warranty on Installations

Photos
Response time2 days
22 neighbors recently requested a quote
Showing 1-10 of 17
FAQs for water heater repair or service projects in Chelmsford, MA

Warning signs include fluctuating water temperatures, a pilot light that repeatedly goes out, unusual noises from the tank, or complete heating failure. You might also detect a rotten egg smell, indicating a potential gas leak, or notice water that never reaches the proper temperature. If your water heater is over eight years old and displaying these symptoms, the gas valve is a likely culprit. Professional inspection is recommended, especially if gas odors are present.

Water heater gas valves are not universally interchangeable. Each valve must match your specific water heater's make, model, and specifications. Important compatibility factors include gas type (natural gas vs. propane), BTU rating, connection types, and physical dimensions. Using an incorrect valve can result in poor performance, premature failure, or dangerous gas leaks. Always consult your water heater's documentation or a professional plumber to identify the appropriate replacement valve for your unit.

The Chelmsford, MA homeowners’ guide to water heater repair or services

From average costs to expert advice, get all the answers you need to get your job done.