Heat Pump Installation Contractors in Lowell, MA

"Carman and his crew did a spectacular job upgrading our old knob and tube panel with 200 amp service. He is punctual and professional, and he stuck by the price he quoted. He showed flexibility when I expanded the job to remove the active knob and tube in the basement and wrapped up both jobs on time. He’s thorough, writing down notes of the work during walkthroughs so as not to miss details. He listened to everything we said we needed and made recommendations. I cannot recommend his services enough, and with all the work required for our home, I will be hiring him for work in the future."

"Very professional installation and service We re very happy with our unit's Definitely recommend this company"

"Professional in every way. You want someone that cares this much on your job. Attention to detail , tidy, polite and skilled at his trade. A gem."

"This was a home run for Cornerstone! Incredible service from start to finish! This was a complete Central AC install including installing all new ductwork. Andy & Britt were incredible. They were on time every day, and very personable. The job they did was great but I also appreciated how it looked. They took the time to tie up all the duct tubes so it was tidy and clean looking in the attic. This was a multi-day install, and there was constant communication on the schedule so I always knew when to expect them. The 2 electricians - Rick & Jeremy were the same. Very relatable and personable, on time and professional. They took care of the electrical install and also tidied up some other wiring. Front office was very professional and courteous, and consistently checking in on the job. Incredibly blown away by the amazing job the entire company did! I would recommend them 1000 times over! Great job to everyone!"

"Received a call back from Jeff within an hour. He was able to get to my job same day for the same price. Excellent job well done and great communication. Will use him in the future."

"Dan S. and Don N. both did an amazing job. They initially came late, but called to let me know that they schedule had changed, which is appreciated. They were going to replace both the furnace and the AC. They managed to get the furnace into working condition on the first day, which I needed because I had had no heat for the last couple of days. They finished complete installation in a few days. They left the area they worked in clean. They walked me through everything they were doing and why they had made certain choices. Very professional job. Will definitely use them again and recommend them."

"Mike was above and beyond helpful! He even walked around the house and talked about my air conditioning and heating unit, which was great. He was knowledgeable and did great work."

"Buck and Wayne installed a mini split heating and cooling system in an attic bedroom/bath. The space was very tight and it took a lot of expertise and creativity on their part to hide all the piping. The outside unit mounted on the back of the house above a porch is a lot more visible than I thought it would be but they did everything they could to make it less intrusive. They arrived before 8 am and had to work outside in some bitter temperatures to install the outdoor unit. At the end of the day, Buck and Wayne took time to made sure that I knew how to operate the unit and that I could call if I had questions. I did a walk-through after they left and the rooms including the attic storage space were spotless. I would highly recommend them for any heating and cooling work you are considering."

About us: "N.E.T.R., Inc. is here to help homeowners install the best heating and cooling systems that fits their needs. Since 1989, we've installed heating and cooling systems in Boston and its surrounding areas, tackling tough problems that our clients face. Our goal is to ensure our clients have energy efficient, quiet, reliable systems so they can live their lives to the fullest both at home and at work. Our dedication to our customers' needs is what drives us each and every day. Our approach to temperature control and comfort has helped us become one of the most respected names in heating, cooling, and refrigeration in New England."