Heat Pump Repair Services 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."

"Submitted quote and George was quick to respond and was friendly. Was able to schedule a technician to come out next day! The technician arrived on time, knowledgeable and walked me through the entire process. Open communication, no hidden fees, did not fix items that were not broken, honest with issue and pricing. They were here to fix the problem and not to give a sale pitch. I would HIGHLY recommend and will be using them again for yearly maintenance."

"Great workmanship. Completed work on time. Kept area clean and cleaned up nicely. Would highly recommend."

"QUALITY CONTROL: Met Standards The Contractor submitted proposal for the job in a timely manner with proper documentation. They used specified materials and appropriate equipment. Minor work needed to be redone for reasons under their control. PROJECT MANAGEMENT AND SCHEDULING: Met Standards The Contractor communicated the project start up plan. They started the project later than the startup date due to other trades and adjacent work SCHEDULING: Met Standards The Contractor adapted to project changes and scheduling and modifications as revised by the client and the General Contractor on the site. They provided updates throughout the course of the project when requested by the client and the General Contractor. SUBSTANTIAL COMPLETION: Exemplary The contractor provided project systems and materials at the completion of the project SAFETY AND HOUSEKEEPING: Met Standards The Contractor stored materials properly in designated locations and maintained a clean site"

"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!"

"recently hired Jean, and I couldn’t be happier with the experience. He came to my home, provided a fair and competitive quote, and completed the work with skill and attention to detail. Jean was efficient, cleaned up thoroughly when he was done, and finished the project quicker than I expected. I highly recommend Jean for anyone looking for quality work and reliable service."

"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."

"Andy diagnosed the issue quickly and solved it."

"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."