Climate Design Systems, LLC

We have Climate Design Systems installed two new heat pump systems and helped us to obtain the mass save rebate. The installer not only did an excellent job but also solved an old problem that two other companies didn’t solve. That was a connection of the existing pipes in the attic were totally off and there was little air to the master bedroom. He took an extra effort to look for the leak and resolved the problem. As for the rebate, after an initial glitch the company assigned an experienced person to help us and we received a full rebate from EVERSOURCE of $5000.

There was a minor issue with an employee, I was not completely satisfied but the Office Manager, Nicole, took full responsibility, did not make excuses and absolutely went above and beyond to resolve the issue and make sure I was completely satisfied. I am a realist, I understand no company is perfect, there are always going to be issues but Customer Service goes a long, long way with me and others I'm sure. I communicated with her on the weekend to resolve this emergency, she took time out of her personal schedule, she was not getting paid but keeping a long time client was clearly a priority to her. She exemplifies true Customer Service, a dying breed today where companies want to make the quick buck and don't care for your return business. Thank you Nicole!

Amazing Company, the tech was on time and did an excellent job. Highly recommend!!!

I cannot say enough good things about Leonard and his entire crew. From the moment they showed up, it was clear these guys actually care about doing things the right way—not just getting in and out as fast as possible. They didn’t just fix the immediate issue I was having; they took the time to thoroughly diagnose the system and uncovered serious mistakes made by the previous installation company. Instead of ignoring it or slapping a temporary fix on top of bad work, Leonard walked me through exactly what was wrong, why it was wrong, and how it should have been done in the first place. That level of transparency and technical knowledge is rare. The crew was professional, respectful, and clearly experienced. Everyone knew their role and worked together efficiently without cutting corners. Their attention to detail was impressive, and they treated the job like it was their own home. As a side note—and this matters more than people realize—they showed up on time, parked considerately, were clean, well dressed, and left behind essentially zero mess. That kind of professionalism speaks volumes and is becoming harder and harder to find. This wasn’t just a repair—it was a correction of someone else’s faulty work, done properly and thoroughly. I have complete confidence in the system now, which is something I didn’t have before they came in. Leonard and his crew are the kind of people you want working on your home: honest, skilled, respectful, and genuinely invested in the quality of their work. If you’re looking for an HVAC company you can trust, stop searching and call them. These are good people doing great work.

Leonard and his crew are exactly what you hope for when hiring an HVAC company. From start to finish, the experience was smooth, professional, and honestly refreshing. What stood out most was their ability to diagnose problems, not just replace parts. They identified flaws from a previous installation that never should have passed in the first place, explained what was wrong in plain terms, and corrected it properly. There was no upselling, no vague explanations—just straight answers and solid work. The crew showed up on time, were clean, well organized, and worked efficiently as a team. They were respectful of the space, kept everything tidy, and left the area cleaner than they found it. Even small details—like how they parked and staged their equipment—reflected a level of care and professionalism you don’t often see anymore. You can tell Leonard runs a tight ship and takes pride in his work. The confidence they had wasn’t ego—it was experience. When the job was done, the system worked the way it should have from day one. If you want an HVAC company that actually knows what they’re doing and stands behind their work, this is it. I would recommend Leonard and his crew without hesitation.