Best Heating & Air Conditioning / HVAC In Lowell

“The technician (Vic) arrived promptly and conducted a thorough assessment of the system, identifying and resolving a clogged filter and refrigerant leak. Overall, we were highly satisfied with the HVAC service provided and would recommend Druziako HVAC for their expertise and professionalism.“

“Earthtech systems delivers excellent service! We lost heat this week and they rescued us. We appreciate their work.“

“Came the same day to fix my furnace even though they were busy. 10/10 price and service“

“Matt is the best of the best - reliable, responsive, hard-working, and super smart. I sleep easier knowing that I can always call him when something goes wrong. Highly satisfied, would definitely recommend.“

“Reliable Air is BETTER than the name suggests! Paul was honest, trustworthy, and upfront. He provided an estimate, and stuck to that estimate with no "extra costs" that somehow always arise with contractors. He showed up when he said, made very little disruptions, cleaned up after his work. I would recommend Reliable Air to everyone who needs HVAC services. Paul is a standard above the rest!“

“In June 2025 I contracted with Bob Gagnon Plumbing & Heating Lowell, MA to install a new high efficiency boiler and water heater. I am impressed with the level of craftsmanship and high quality of the materials. Bob did the work himself, soldering all the pipes and connections. He also partners with a trusted electrician (Tessier Electric), and they coordinated the work so there were no delays or downtime for either of them.

I highly recommend Bob Gagnon for quality repairs or replacement systems. He will keep you informed at every step and lets you know what to expect as he goes. This job exceeded my expectations.“

“EXCELLENT SERVICE!Joe Ayotte Heating & Air Conditioning Is the best around! I called Roger with (Joe Ayotte Heating & Air Conditioning) for a free quote on adding central AC to are home. Since one day, Roger and his team have been amazing in making sure we get taken care of. Roger was involved every step of the way from being to finish! Their team is very knowledgeable, professional and friendly. Their work install was well executed in a timely matter (they even were able to start a week earlier than mentioned)! Their work was clean and done correctly. This company went up and beyond in servicing are every need and answering are questions. The final product looks amazing!We couldn’t be happier and will definitely be using this company in the future. Thanks Roger & Joe Ayotte Heating & Air Conditioning Team!“

“Long-term happy customer. All aspects of the service handled easily and professionally and very courteously with additional helpfulness. Best fuel company ever. :-)VS“

“Fast & Great Service Donnie replaced our water heater. Service was quick and well done!Service: Heating system installation“

“Fred L Webster exceeded beyond my expectations and imaginations. I was over the moon to see and witness such professionalism, expertise, and intricate details craftsmanship work and care within such a timely manner. They were very kind and polite, she displayed exemplary customer service showing that this business is more than honorable but proves their reliability and standing not just for now but generations to come with top of the line work and a value that is still affordable to family of any income. After hosting many guests on such short notice they were astonished at the magnificent work and detail placed into the work. I was approached for several referrals for to work on their future needs plumbing and updating. Thank you kindly. God Bless“

“It’s rare to find a company that truly cares about its customers the way clear air heating and cooling does. I wouldn’t trust anyone else with my heating and cooling needs — they’ve definitely earned a lifelong customer from and me my extending family! Highly recommend to anyone looking for fast, fair, and flawless service! They are such a blessing!“