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JEM Heating & Air Conditioning will provide you with the quality you deserve, professional service, a quick response, and reasonable prices. JEM Heating and Air Conditioning, Inc. of Carroll County is a full-service provider of WaterFurnace geothermal products.
Services
Armed with only a pick up truck, a handful of tools, and a dream, we set out to develop a Company that would deliver quality craftsmanship, prompt service, and reasonable prices. While the Company has grown over time, our dedication to customer service remains unchanged. Rest assured that we promise to fulfill your heating and cooling needs with uncompromised honesty, integrity, and expediency.
JEM Heating and and Air Conditioning Inc. offers both residential and commercial services. Our experienced staff has the knowledge to provide both heating and air conditioning service and repairs. For quality, professional service, contact us today to schedule your heating or air conditioning service/repair.
Our services are listed below, but our specialty is the maintenance, repair, and replacement of roof top packaged equipment. Our commercial clients include familiar names such as H&R Block, General Dynamics, Marada, Flowserve, and New Windsor Bank.
Reviews (11)
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Kenneth McGrory
Sep 04, 2021
Late in summer and very hot days. Our a/c goes down and our customers are sweating bullets. JEM helped us get back up and running. The pricing was very reasonable and we got a lot of value for our dollar! This is an excellent company to do business with. We highly recommend them for all of your heating and a/c needs! Service: A/C system repair
Alexandra W.
Jul 07, 2021
During a busy, hot, summer week JEM was able to accommodate me with a timely appointment and great customer service. The technician, Matt, was excellent to work with: prompt and professional. He kept me appraised of all next steps and potential costs so I could make an informed decision. I would definitely work with JEM and Matt again.
Jennifer DiDio Photography
May 06, 2020
JEM rocks--they were just out to fix our AC unit and were very efficient and very reasonably priced. We've used them a few times at different homes and always had a great experience!
Christopher Hinrichs
Mar 27, 2020
I had an AC emergency. The tech from JEM showed up in hours. He replaced the broken part and fixed it in minutes for under $200. FANTASTIC! GREAT COMPANY.
Bradley Reeder
Nov 16, 2019
Thank you very much for wasting 3+ weeks of my time to ultimately decide to not do the work on my warranty claim (SCCM4Z86MJ-1). This company is horrible to work with, no one knows what's going on when you call, they don't know how to send a report to a warranty company and they have poor communication skills. I was told numerous times between May 17th (day or inspection for my claim) and today that I would get a call back, never happened. AVOID AT ALL COSTS! The service tech that came to my house was knowledgeable though. I believe Jeff was his name.
Nikki Matteson
Jul 05, 2019
When our heat went out, JEM was at our house within a few hours. The repair man was polite and quick.
Claire Schwartz
Apr 01, 2019
JEM has been servicing our A/C for 12years. They are always prompt, professional, and very reasonably priced. In fact on the morning of our move, the compressor died and they had aservice tech out and replaced the selanoid by 8am. Left 4 GEM fridge magnets to let new owners know the ONLY company to call.
Christine Harrington
Jun 13, 2018
I wanted auxiliary heat added to my a/c unit. It was a problem job, because I already had radiant floor heat running to my thermostat. They got creative and figured out a simple solution. The employee who came out was professional and courteous. On top of that, the price was very reasonable. Thanks for a job well done.
Susan Nardyz
May 22, 2018
Jem is our Commercial HVAC vendor. They are very prompt and efficient! All of the staff are very professional and Jeff the owner does everything he can to make sure you are satisfied. I highly recommend Jem HVAC.
Marla Humphries
Jun 17, 2015
JEM has been our "go-to" heating and cooling company for 10+ years. The owner and technicians are very knowledgeable, thorough and courteous. The fees they charge are reasonable and they do not try to gouge their customers. The owner, Mike, has gone above and beyond the call of duty for our family - coming out on a holiday (July 4th) for an emergency situation at our home and other such incidents in the past (the most recent time was 2-3 months ago).

The company's technicians are knowledgeable about heating and cooling from the most modern equipment and technology to older heating systems with radiators used to heat a Victorian era home. I would never hesitate to recommend JEM Heating and Air Conditioning to friends and family!
Matthew Porter
Jun 18, 2013
Cannot hook up a thermostat for a heat pump. When they wired it the first time they connected the normal and electrical backup heat to the same wire, meaning that it ran inefficiently all winter. In the spring the AC didn't cool the house because it was running both the AC and electrical backup heat, so I called them to fix their original mistake. JEM refused to so much as discount the service bill for the second trip, despite their mistake causing the problem in the first place. I won't give them a third chance.