HVAC reviews in Gaithersburg, Maryland

4.7 based on 589 reviews Back to the listing
    5

    ADI did a wonderful job. They were professional and the owner of the company was there to make sure everything was correct on the job and me as the customer was satisfied.

    5

    Extremely responsive and capable contractor. Has performed HVAC system maintenance and trouble shooting and always effective. Highly recommended.

    5

    Great service, the technicians were on time, professionally gave us a fair price to replace the part , we got our a/c back at no time.
    We definitely will recommend them.

    5

    Excellent and friendly service! My Heating was not working properly. I called Adi and he arrived within an hour and fixed the problem in 30 minutes. A++

    5

    Excellent service and good prices. Installed a 16 seer system in my home plus upgraded the duct work. Much more efficient than my old system.

    5

    Highly recommend Ronen! Highly skilled and experienced professional. He has deep knowledge of the industry and very reliable and goes above and beyond to provide a good service.

    5

    Ronan and his crew were fantastic. Prompt, professional and polite, everything was left in great condition and we love our new unit.

    5

    We used ADI to install two HVAC units, came on time, fair price, honest, we will definitely recommend them.

    5

    Highly recommend. Honest, reliable, efficient. I have used them for the past 18 years in many different homes. Answers the call for help quickly and doesn't try to tell you anything you don't need. Very happy customer!!

    5

    Ronen is very professional, I highly recommend

    5

    Ronen is reliable, honest and professional. He is always available to answer questions or come by to check on things. We have always been super happy with his service!!

    1

    If I could rate lower than a 1, I would. I had a problem with my AC unit and called ADI to make an appointment. Whoever answered the phone was rude and unprofessional. I explained my problem and he refused service. There are lots of competitors out there. Choose someone else.

    5

    Very experienced and reliable HVAC Co. in both residential and commercial installations. Prompt response and competitive prices.
    They will also get you the rebates from the local utilities to save you even more $$

    5

    Excellent workmanship
    Very skilled and professional staff.

    Just update my HVAC system, they installed last one 20 years ago and not one single problem.

    I would recommend them.

    5

    Great customer service and workmanship. I needed a new air conditioner and furnace and got it installed in less than a week. In the middle of summer. Very nice job and extremely clean. Highly recommended.

    5

    The team did a fantastic job!! They provided a few options to fix the problem - which was really helpful. I went with a replacement - the difference is so obvious. Quieter and more comfortable. They were really respectful of my time and home. I will definitely go back to them if I ever need anything in the future!! Truly appreciated

    5

    We have been using ADI Heating and Air for years and have always been happy with the services provided. Quality products combined with expert installation & maintenance keeps us cool in the summer and warm in the winter.

    5

    We have used ADI for over 15 years and Ronen is the best. We will never use anyone else. He is professional and knows his stuff. Thrilled to be his customer. You will not go wrong with Ronen and ADI!!

    5

    The whole process of selecting and installing 2 high-end dual fuel systems for us was top notch! The crew showed up on time, was professional, courteous, and immaculate. Those systems have worked perfectly for the past 4 years saving us $$$ on our utilities bills.

    5

    Right in the midst of a extreme heatwave our A/C began to fail.
    We called ADI heating and cooling the next morning and Ronen
    showed up in less than an hour. He identified the problem within 10
    minutes and he had the needed part right on his truck.
    The A/C began to cool the house within 1/2 hour of his arrival.
    He was a total professional, very friendly plus his fee for the
    part and labor was very reasonable. We also feel like we have a trusted friend to help us with any heating or cooling problem.

    Paul and Marianna Wise
    Brookeville MD.

    5

    The owner, Ronan, was very careful to explain in layman's terms my choices and his suggestions. His quote was less than the others and
    his crew was polite, clean and thoughtful. In the end, he went above and
    beyond by replacing an electrical box that was rusty and a pipe that was
    fraying , both of which were not considered part of original estimate.
    I highly recommend this company.

    i