Get matched with top tankless water heater repair pros in North-marshfield, MA

"He called us early morning and by early afternoon we had a new hot water heater. Very professional. I would recommend to all."

"This was a relatively small water heater repair, and Ryan did an outstanding job. He responded immediately to my request, provided a reasonable quote, was polite, professional, knowledgable, and friendly to deal with. Will definitely hire again if needed."

"Guy did a great job of diagnosing and repairing our State Hybrid Electric water heater. I would definitely recommend his work."

"CMK was very professional from start to finish. They showed up on time and very quickly repaired my burst pipe. I will definitely be using them again for any of my plumbing needs."

"They were very fast to respond to my call and were able to send someone within two hours. The replacement of the hot water heater went well. For the water pipes they use copper crimp fittings instead of soldering so it will be interesting to see how that holds up over the years. My only concern is how they ran the gas line. They use Gastite CSST which is fine, but the CSST is run so it goes downward then back up and then downward again before it enters black pipe that has a moisture trap. It seems to me that if there is any moisture it will end up in the CSST instead of the trap. In addition, there is a pretty good bend in the CSST right before it goes into the trap section. Also, Teflon tape was used on the all the joints instead of joint compound. I think I will get someone from a different company to come in and take a look at it."

Welcome!\n\nAt JN Service HVAC & Plumbing, we’re proud to deliver licensed, insured, and trusted HVAC and plumbing solutions to homes and businesses across Massachusetts.\n\nWith a solid reputation built on Excellence, Commitment, and Responsibility, we help you prepare your home or commercial space for the season ahead — before winter problems strike.\nOur priority is your comfort at home.\n\nWhy Choose Us?\n- 5-star Rated Company: We are a 5-star rated company with more than 1200 satisfied clients.\n- Customer Success: We focus on long-term relationships.\n- Specialist: Expert knowledge and proven skills.\n- Licensed and Insured: Our services are fully insured, providing you with peace of mind.\n- Quality in Everything we do: Best service with the best products.\n- Double-year warranty on labor.\n- Emergency Service: We're ON 24/7 to ensure your well-being.

"They came to my home showed me what needed to be done and they went and got the water heater. When they came back a short time later they had the tank and installed it in an hour with new pipes and a new shout off that I can do."

"In April 2026, our broken cast iron pipe needed to be replaced, but we didn’t know how extensive the repair would be. From Angi's referrals, we called Full Swing Plumbing who arranged for Nick, one of their plumbers, to come to our house that same afternoon. Full Swing waived the dispatch fee. Nick used his endoscope camera to see the extent of the problem. (They had a coupon on their site which offered this one-time, free service.) After a couple hours, they were able to identify the problem, present a few solutions, as well as a final estimate before they left that day. We agreed on the approach and set a date for the following week. Nick and his co-worker were friendly, deeply knowledgeable, and hard-working. They communicated well, taking photos for us throughout the process. They cleaned up everywhere, completed the job in one day, and they kept to their price. Everything worked well from the single visit."

With over 75 years of experience, GEM provides trusted plumbing services for homeowners in the Plymouth, MA area, as well as across Cape Cod. Our licensed plumbers handle everything from leak repairs and drain cleaning to water heaters, fixture installations, and emergency plumbing service.\n\nWhether you're dealing with a clogged drain or a sudden leak, we deliver fast, reliable solutions to keep your home running smoothly.

"Jose was out Monday to perform annual maintenance. His attention to detail was amazing. I never saw such a complete maintenance job. As you know he was out before consulting on our need for a 3rd return. we discussed it again and he recommended to add it to the 2nd floor rather the first as we originally thought. He gave us an estimate and was able to do it immediately. I was incredibly impressed at how he worked so careful and considerate. Again his attention to detail and craftsmanship would make most finish carpenters jealous. In the end we had a new return on the 2nd floor. When the system runs now it run 12 db quieter overall (he even was able to turn the fan from medium to high) and when I turn the thermostat from 65 to 70 it takes the ambient room temperature to 70 in 5 minutes versus 20 minutes with 2 returns. I know when A/C season starts we will see even more improvement. I've used Boston Standard for a few projects in my home now including a mini-split ductless system for my office space, a tankless water heater and a whole house humidifer. Their advice and installation on all of these was flawless! Definitely check this out"