Best Heating & Air Conditioning / HVAC In Rockville

“I rely on Vito Plumbing and their technician, Jamie was on time on December27, 2023 ?. He and others are very reliable and professional in the way they work and treat our home. Danny and Bobby Isaacs was also very good ?. They are a bit high ? n the other projects they submit for future work! The nearest competitive price was $400.lower!“

“Rob and Nate were experts and made quick work checking and cleaning the air conditioning unit. Im very cold now!“

“Omar arrived when we expected him and worked quickly and efficiently. When he explained what he'd found he was clear and helpful. He seemed personable and friendly and we'd be glad to work with him again any time.“

“I had a great experience with David Ford. Craig was a pleasure to work with and great with keeping me up to date on everything“

“Moshe was very responsive and professional. He was very thorough and wanted to make sure I understood the issue. So grateful to have my issue fixed promptly and efficiently during this record breaking heat.“

“My AC unit shut off and I got an error message from my Nest thermostat, so I immediately called Nelson. He answered right away and walked me through troubleshooting the issue. His professionalism, knowledge, and willingness to help were truly appreciated. Nelson is always dependable and a total lifesaver whenever we need assistance. Excellent customer service every single time. I will forever be using Gaitan Services LLC for all of my HVAC needs and highly recommend them to anyone looking for honest and reliable service“

“2026-05-17: Just had to take a moment to share my experience with Donmar Heating, Cooling & Plumbing. From an HVAC service visit, cracks in the heating exchanger were discovered. Because of inflexibility with additional needed services involving the water heater and sump pump, I began obtaining price quotes from other services. Michael W. quickly came out, listened to and addressed ALL of my concerns, assessed the physical situation, and provided a very reasonable quote of proposed services. Michael W. was instrumental in establishing a RELATIONSHIP where trust, integrity, and honesty reside as the foundation. Financing was easy and reasonable. Donmar's customer service was truly exceptional.
Donmar's service technicians, Manuel and Edgardo, were nothing short of awesome!! They paused to listen to me and patiently and thoroughly addressed all of my questions and concerns. From their arrival to setup to installation to cleanup, Manuel and Edgardo worked in synchronicity demonstrating expertise and professionalism! The PWC inspection went very well with comments highlighting the expertise of the worked performed by Donmar. :-)
My wife and I are sincerely looking forward to working with Michael W. and Donmar for meeting all of our heating, cooling, and plumbing needs. :-) :-)“

“Leahy Plumbing experts Jim and Gary did a fantastic job repairing leaking pipes and in my home
I would recommend them to people who value their home and appreciate professionalism by the Leahy team.
Jim Jackson, proud customer
Dr J pleased homeowner“

“Was outa heat. Called him he was there 2 hours later. My heat was working 5 hrs later. Dont know how he did it. I was trying for a week. He was in and out. Nice guy. Definitely recommend“

“I had a great experience with BGE Constellation. Jonathan arrived the same day I called, quickly diagnosed the issue, and fixed it efficiently. He was very personable, funny, and clearly extremely knowledgeable at his job, which made the whole experience stress-free. It’s reassuring to work with someone who is both skilled and pleasant to be around. I highly recommend their services and would absolutely use them again.“

“Mr. Keith came to my house last week to inspect and service my ac unit and he was very professional. He explained to me in detail on what I will need for my unit and what I will need to do to keep up with the basic maintenance. He was very pleasant to deal with and he didn't try to sell me things that I don't need for my unit His prices was also very reasonable. I will be referring Mr. Keith to my friends and family. I will also use him again.Service: HVAC system maintenance“

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“BJ and his team were excellent. Went above and beyond, quick turnaround, and very professional. Will recommend Academy to friends and family!“

“It’s hard to find people who truly have hands-on experience with what they’re selling. I was lucky to meet Rick, who took the time to understand my situation, explained exactly what I needed to do to resolve it, and even had the parts in stock. Excellent service and knowledge.“

“Exceptional Emergency HVAC Service – Highly Recommend!

I recently had an emergency situation when my air conditioning stopped working right at the beginning of a brutal summer heat wave. Thankfully, I called Foundation Heating and Air LLC, and they responded with incredible speed and professionalism. Within an hour of their arrival, my AC was back up and running — an absolute lifesaver in the sweltering heat!

From start to finish, my experience with Foundation Heating and Air was outstanding. Their team was punctual, courteous, and highly efficient. The technicians arrived well-prepared, quickly diagnosed the issue, and had the necessary tools and expertise to resolve the problem on the spot. It was clear they take pride in their work and genuinely care about their customers' comfort and safety.

What stood out most was their time efficiency and excellent customer service. In an industry where delays and vague timelines are common, it was refreshing to work with professionals who respected my time and communicated clearly.

I’m extremely satisfied with the service I received and would highly recommend Foundation Heating and Air LLC to anyone in need of air conditioning repair in Montgomery County, MD. They’ve earned my trust, and I wouldn’t hesitate to call on them again.“