When it comes to keeping your home comfortable year-round, having a reliable HVAC in Hagerstown, MD, is crucial. That’s where Markool Heating & Cooling comes into the picture. Since 2016, we have created a stellar reputation in the HVAC industry by being committed to sustainability, innovation, and unwavering customer satisfaction.

We are staffed with NATE-certified technicians who can address all your minor and major heating and cooling needs. Also, Markool Heating & Cooling is a Carrier Factory Authorized Dealer; thus, our clients can access top-tier products.