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A-Quality Heating & Air Conditioning
A Quality has been providing leading Maryland HVAC services since opening our doors over 15 years ago. In these 15 years, we've provided HVAC repair, maintenance and installations to over 10,000 residential and commercial customers. We use only high-quality, top-performing products from trusted manufacturers, and we stand behind our work.

We proudly serve Maryland and Southern Pennsylvania, including Baltimore, Carroll, Howard, Frederick and Montgomery Counties. Maryland HVAC services including HVAC service, HVAC installation, HVAC preventive maintenance, Mitsubishi Ductless Systems, Complete Care Products, and more. Financing available for customers with approved credit.

Geothermal energy is now available for homes in the form of Geothermal heat pumps. Geothermal heat pumps cost less to operate than traditional heating and cooling systems and help preserve natural resources. Take advantage of special home heating and air conditioning rebates from manufacturers, as well as tax credits, both which can help you make your home HVAC investments more cost effective.
Services
A Quality Heating and Air Conditioning, Inc., is a leading Carroll County HVAC installation, maintenance and repair company based in Finksburg, MD. We've been helping local residential and commercial customers in Maryland and Southern Pennsylvania for more than 15 years. During this time, we have established our mission and values and helped the local Carroll County community on many occasions.
Whether you operate a hotel, a shopping center, a college campus or an apartment building, you know you can rely on A Quality for all of your commercial HVAC needs. Zoning system stopped working? We are on it! Need equipment checkup before the heating season? Just give us a call.
All A Quality service technicians are fully licensed through the state of Maryland, and receive continuous education on the most current technologies in our industry, as well as NATE certification. We have extensive experience in new construction and replacement services, so whether your home is being built, existing, or being remodeled, A Quality will satisfy all of your HVAC needs.
When your HVAC system breaks on the day a 90-degree heat wave (or a single-digit polar vortex) is scheduled to arrive, don't waste a minute and call A Quality right away. We take the comfort of our clients seriously, which is why we offer 24/7 emergency repair service for HVAC issues. We are often able to accommodate you with a same-day appointment and fix your problem in a matter of hours.
Whether you are replacing an old or failed HVAC system or looking to install high-quality, durable equipment in a new construction project, A Quality can provide the following HVAC installation services to Maryland & Southern Pennsylvania residents, no matter if you are in Baltimore County, Anne Arundel County, Howard County or in an other location.
Reviews (18)
Greg Ballantyne
Greg Ballantyne
Nov 19, 2021
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Top notch HVAC supply, installation and service. Professional, thorough, courteous and honest.
Julie Bell
Julie Bell
Nov 13, 2021
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Highly recommend A Quality. We needed a new heating system and knew the job was not going to be easy or inexpensive. So glad we chose A Quality. They were aware we did not have heat. They were able to work magic and move our installation up. Their cost was what we expected. Their technicians could not have been more professional and courteous. Thank you, A Quality!
Steve Breitzka
Steve Breitzka
Aug 31, 2021
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I called them on Monday on a recommendation from Ensor Plumbing who I trust a lot. They tried to schedule me for Tuesday but it did not work so they said they would be out on Wednesday between 8 and 12. They called at 10:30 and said they were on the way and will be at our house by 11:20, which is exactly when they arrived. The technician Justin got right to work, found the issue, had the part on his truck and fixed the issue then checked to make sure everything was working properly. He then explained what he did and why the part failed. The cost was less than I would have expected. Will definitely
Patrick Bonsall
Patrick Bonsall
Aug 28, 2021
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Cody and Brad did a complete system change out in 1 day. They are polite, attentive to details and awesome to work with. They are an asset to the company and outstanding representatives. A Quality was recommended to us by a local Westminster builder and I would recommend them to anyone needing service or installation
Hcfirelad
Hcfirelad
Jul 19, 2021
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Our experience with AQuality has been outstanding. First of all, they were able to send a tech within 18 hours of my call, nearly a miracle in the heat of summer. This relieved my anxiety quite a bit, as we had only been able to schedule another company for almost two weeks out. Since part of our problem was leaking water off the A/C coil, this would have been an extreme inconvenience, as well as lead to a flooded basement. The tech, Anthony, was in my driveway at 8 a.m., and proceeded to analyze my problem quickly and efficiently, and answered my multitude of questions competently and completely
Greg Lang
Greg Lang
Jul 17, 2021
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Positive: Professionalism, Punctuality, Quality, Responsiveness, Value
Had an emergency where our ac wasn’t working the night before my wife’s baby shower with family staying from out of town. Anthony came out at 11:00pm and fixed what was wrong! Literally saved the night on one of the hottest weekends of the year!
Service: HVAC repair
Bob Jones
Bob Jones
May 29, 2021
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A Quality did an excellent job with the new Trane Heat Pump and furnace. They were very prompt and efficient. They took time to go over everything from the new install.
I highly recommend them to anyone that needs repairs or a new system.
Gary H.
Gary H.
Jan 16, 2021
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Positive: Professionalism, Punctuality, Quality, Responsiveness, Value
A-Quality says it all, from the office staff, to Sean the estimator, and Paul and Brandon the installers. They showed up on time and wore COVID Protection and booties. Paul asked if I had any special instructions for them or any concerns and we discussed them. Next, I showed Paul the access route to the work area and they put drop clothes down. Paul asked again if I had any questions. Then like "ninjas" they began to remove the old units and install the new units. Once they completed the work, Paul took me to new unit
Corrine Miller
Corrine Miller
Apr 25, 2020
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Our thanks to Daniel. He didn’t practice social distancing and Covid precautions, he is a professional! Gloves and masked the entire time! He diagnosed our problem and had our heat up and running quickly. Thank you!
Jim Wright
Jim Wright
Jan 15, 2020
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Can't recommend these guys enough. Honest and fast service that isn't easy to come by these days. I don't normally submit many reviews but the guys at A Quality have come through many times. Highly recommended!!!
Becky F.
Becky F.
May 24, 2019
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We had our entire HVAC system replaced we got many many estimates and went with A Quality. They had the best price a great warranty and one of the best units you can buy. I can't say enough good things about this company, the two technicians who came out were polite they finished in about 4 1/2 hours which is great when you have dogs and you have to keep them confined. If you're looking for an HVAC company I definitely recommend this one. I recommend staying away from the big names because they are more expensive. We were quoted a price twice what A Quality gave us and with them we got
Robert R.
Robert R.
May 22, 2019
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This company has provided nothing short of great service. The technician arrived a little earlier than expected, quickly diagnosed and fixed the issue and explained everything he did each step of the way. Very professional and knowledgeable! In an out in about an hour. Thank you AQuality!
John Flynn
John Flynn
Apr 10, 2019
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They come on time, service the equipment for a reasonable price ...and they are professional and pleasant as well.
Brian S.
Brian S.
Jan 15, 2019
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Does the "A" Stand for Awful?

My wife and I had a whole-home humidifier installed October 8, 2018 to prep for the winter ahead. My wife was 5 months pregnant and we have a grand piano that needs to be kept at a certain humidity level. Unfortunately, the tech who installed the system wired it incorrectly, never checked, took his money, and left. Fast forward to a bunch of nosebleeds and cracked skin later and we find out that the humidifier had never run once. After I discovered this in January I called A Quality who sent out a different tech who indicated that the first tech did
Wendy Hunter Hillary
Wendy Hunter Hillary
Nov 12, 2018
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Evan was very professional, kind, and informative. We used another company last year and was not happy at all with the service so we went back with A.Quality and will be staying with them for a long time!
Jamie Giove
Jamie Giove
Aug 12, 2018
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They took out our old system updated it and fixed any issues we had. They were on time, got the job done on time, and cleaned everything up!!!! Amazing!
Michelle P.
Michelle P.
Sep 19, 2017
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We've used A-Quality to replace our AC system and for furnace repair. Their techs are top notch - friendly, courteous, and very knowledgeable. Good and fair prices as well. I wouldn't call anyone else for my HVAC needs!
Don K.
Don K.
Jul 12, 2016
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Thank you A-Quality! My Elderly in-laws A/C went down this weekend. I called A-Quality at 845am and by noon their system was fixed! They had called other companies which could not come out for at least a week. You folks are awesome!

D Katz Damascus.