About Mason Mechanical Services

Mason Mechanical Services LLC has been providing dedicated Commercial HVAC service you can count on to Maryland and Virginia for over 10 years with 25 years of experience. From Frederick MD to Leesburg VA, we serve most areas throughout Virginia and Maryland. We specialize in service, repair and equipment change-outs. We do not do new construction install. We repair all makes and models and specialize in:Service contracts, Air conditioners, Chillers, Boilers, Rooftop units, Cooling towers, VFD's, oil fired burner, water and steam boilers, tankless water heaters. Broken refrigeration equipment can slow your business down...we are available 24 hours a day, 7 days a week, prepared for any situation. If you have an air conditioner, chiller, ice machine, walk-in freezer or cooler that isn't actually keeping things cool, give us a call.