Founded on the principles of integrity and excellence, Mannix Heating & Cooling has solidified itself as a leading provider of HVAC services in Gaithersburg, Potomac, Leesburg, Dulles, Chantilly, and Rockville. Our expertise encompasses a broad range of cooling and heating solutions, from AC maintenance to heating system repair and furnace repair.

Exemplary AC Maintenance in Gaithersburg, MD & Potomac, MD

We specialize in <AC Maintenance> services that prolong your unit’s lifespan and enhance its efficiency. Our technicians in Gaithersburg MD, and Potomac MD, strive to ensure your living or workspace remains comfortable during the hot summer months.

Comprehensive Heating Installation and Service in Leesburg, VA & Dulles, VA

In the chilly winter days, you can rely on our heating installation services in Leesburg, VA, and Dulles, VA. We also pride ourselves in providing excellent heating services and system repairs in Chantilly, VA.

Expert Furnace Repair in Rockville, MD

Is your furnace giving you trouble? Don’t worry. Our team is equipped to handle all types of furnace repair in Rockville, MD. Through our commitment to quality, we have earned our customer’s trust as a reliable solution for all their HVAC needs. Choose Mannix Heating & Cooling today for unmatched customer service and expertise.