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"I had an absolutely terrible experience with McRae Air Conditioning and Heating. I purchased a home equipped with their HVAC system, and within just five months, the heat stopped working—right in the middle of winter during a snowstorm. My home was freezing at 50°F, so I called for service, which should have been covered under warranty. I scheduled an appointment, and the technician, after being several hours late, went to the wrong address, left a sticker on someone else’s door, and left without even trying to contact me. When I called back, the customer service rep was rude, dismissive, and completely unhelpful. He initially told me the technician was on the way and just 12 miles away—but after another hour of waiting, I called again only to be told that the technician had already “been to my house 2 hours ago” (the wrong one) and left a note. If the rep actually wanted to help, he would have told me this during my first call instead of wasting my time and leaving me sitting in the cold. Not once did the technician call me to confirm the address or check in after knocking on the wrong door. When I expressed my frustration, the rep rudely dismissed my concerns, saying, “Well, I had nothing to do with that,” and then interrupted me with, “Do you still want to rebook or not?” as if I had to stop talking or risk not getting another appointment. This was an emergency call in the middle of winter, and McRae handled it in the most unprofessional, careless, and disappointing way possible. If you’re considering using them for HVAC service, do yourself a favor and go with another company. I’ll update this review after the (hopefully successful) service call and speaking to the manager who was not there at 4 pm on a Wednesday."

"DC Area - Presidential Heating. We have a two-zone system to cover basement+first floor and separately the second floor and both failed, unbelievably, within a few days of each other while on a trip. Late morning on a Sunday I googled emergency HVAC and saw all these 2 star companies and then I saw an impossibly high rating for Presidential Heating and that they don't charge extra for weekends. Ayite (fantastic) came out and fixed both systems and they were way more than reasonable. And now we have heat upstairs and downstairs! yaaaaaaaa. Our previous HVAC company got their scruples from the Sopranos while Presidential is a godsend."

"I would strongly recommend against using this company. Michael Bonsby sold me an HVAC system that repeatedly malfunctioned between its installation in August 2022 and removal in October 2025. Over those 3 years, Bonsby had ample opportunities to identify and correct the defect in the system, but it failed to do so. Nor did Bonsby ever offer to replace the system. In fall 2025, after years of frustration, I requested that Bonsby refund my purchase price for the defective system. Bonsby has refused and, in doing so, made arguments that are materially inaccurate as to the facts of the matter and applicable law. "

"I contacted Bluestar Air Mechanical for a second opinion after an appointment with Air One. I have a Carrier HVAC system, and the Air One technician recommended a complete system replacement, claiming the blower was bad, the furnace control board needed replacing, and that there were other issues. Since replacing the HVAC is a big investment, I wanted to get a second opinion. It was only after comparing the service from Bluestar that I realized Air One may have been pushing for a new system sale or lacked the expertise to properly diagnose and repair the actual problems. Isaac, the technician from Bluestar, spent about an hour thoroughly diagnosing and fixing the issues. He found burnt wiring in the furnace and discovered that the wrong capacitor had been incorrectly installed in the AC. Isaac replaced the burnt wiring in the furnace and the capacitor in the AC. After these repairs, my Carrier system was back up and running—without the need for a costly replacement. Bluestar, and Isaac in particular, demonstrated professionalism, expertise, and honesty. They focused on resolving the actual issues instead of pushing for an unnecessary system replacement. I highly recommend Bluestar for their reliable service and Isaac’s thorough and knowledgeable work."

"The technician that was tasked with the job was very knowledgeable and professional."

"Great folks to work with"

"From not having a water supply for my whole home bypass humidifier, to having a repaired, new water supply line and instant winter comfort. All in less than two hours. Thanks Edmond and team for getting me taken care of right after I arrived home from work. Wealth of knowledge, too, about HVACs warranties, and other good general advice for first-time homeowners like myself! Glad to have signed-up tonight as a member - eligible for discounts tonight and future maintenance services. Highly recommend!"

"At first, I thought it was a burst pipe from the week + freezing temperatures but I needed a garbage disposal replacement. They were very responsive. Codey, the technician, was very polite and professional. I was referred by a neighbor who has used them for years. I am very pleased with their service. Mary Collins"

Presidential Heating & Air Conditioning in Gaithersburg was founded in 1982. From the very first day, our mission has guided our company's success honesty, superior customer service, and the highest quality system installation around. Year after year, the Presidential team has continued to meet and surpass those ideals without cutting corners.\n\nAs a direct result of our dedication to quality products, people, service, and installation — Presidential Heating & Air Conditioning has built our foundation on customer loyalty and trust. With a complete satisfaction guarantee, the Presidential team won't rest until the job is done and their customers are completely happy with their work.\n\nWhether you own a commercial or residential building or need installation or service, we are committed to providing each of our clients with our expertise regarding the most environmentally friendly systems around.