Get matched with top water heater pros in Sharon, MA

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

"New hot water heater was put in the next day."

Experiencing issues with your heating, air conditioning, plumbing, or electrical systems? Cotti-Johnson is your reliable one-stop shop for all home comfort needs. From simple fixes to large-scale projects, our professional team handles everything with honesty and expertise. We offer 24/7 emergency services and specialized design services for landscape and indoor lighting. Trust us for top-notch, efficient, and transparent service. Visit our website at callcotti.com or call us at (833) 826-8844 to see how we can improve your home's comfort and efficiency.

"Yes, one day install conversion from tank electric to tankless gas with water softener"

"Did a great job but then told me he had to clean it much more than he originally planned and added another $25. Their office told me it would cost $250 which is already quite high when I usually pay $200 max. Then he wanted to service my water heater with an annual flush for hundreds of dollars. I have never had one for the past 7 years since the water isn't hard and I don't expect to need one for the next 7 years."

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.

"Good guy. Provided estimate the next morning. Came to meet on time ready to go. It was a choice of new heater or fix chimney and my daughter decided to fix chimney."

"Amazing experience all around. Easy to schedule and to work with, good deal and amazing work installing a tankless water heater. I will definitely call for any future needs."

"I am a new homeowner that was looking to complete a few projects around my new home but wasn't sure where to get started. I recently had a heat pump installed and integrated to my existing oil furnace by Blue Bear. The Blue Bear project manager helped explained the difference between fully electric heat pump systems and dual fuel heat pump systems, both options were Mass Save eligible so I would be able to benefit from an instant rebates and not have the hassle of filing rebate applications! Blue Bear took care of it all! We chose a dual fuel heat pump system and the installation looks great! I look forward to saving on oil consumption this fall/winter! Everything went well with our HVAC install and now Blue Bear will be installing a whole home well water water filtration system in my home! We look forward to getting rid of the water staining in our toilets and showers! The Blue Care maintenance plan was a no brainer to sign up for! I highly recommend Blue Bear! 5 out of 5!"

"I couldn't recommend these guys more. We had a 21-year old boiler replaced and upgraded, and a new hot water tank installed. I can't think of a single way they could have improved the whole process. From start to finish, they were knowledgeable, on time, clean, considerate, extremely professional and they did exactly what they said they would. The also installed a temporary hot water tank and left electric space heaters on the one night the burner was out of service. Everything is now working as they said it would, and a big bonus is their workmanship actually LOOKS great too! A+++"