Serving Virginia and Maryland

Mason Mechanical Services LLC | Heating | Jefferson, MD

Trust your comfort in our hands


Mason Mechanical Services LLC has been providing dedicated HVAC services to Maryland and Virginia for over 10 years with 25 years of experience. Serving residential and commercial customers, you can count on us to repair all makes and models.

When the weather outside is scorching hot or freezing cold, you want to know your HVAC system has your back! But what happens if it isn’t up for the task of cooling your residential home or commercial building through some of the hottest days this summer? That’s when you give us a call! At Mason Mechanical Services, we provide a full range of commercial and residential air conditioning services at affordable prices. Our team is highly experienced and is available around the clock, seven days a week!


From Frederick MD to Leesburg VA, we serve most areas throughout Virginia and Maryland. We take pride in our company as well as the services we provide. Our team is professional, friendly and courteous. If you need emergency HVAC services in the middle of the night, we can provide 24-hour service on short notice to get your heating or air conditioning unit back in working order. Don’t hesitate to contact us if you have any questions or would like to schedule a maintenance or repair visit by our team today!

  • We have 25 years of experience in the industry, and have been providing dedicated HVAC services to VA and MD for 10 years!

  • We can assist both residential homeowners and commercial business owners with their heating and air conditioning needs.

  • We have experience with both electrical and geothermal heat pumps to ensure your home stays comfortable as the seasons change.

  • All of our new equipment comes with a one year warranty. This includes chillers, heat pumps, boilers, custom duct work and more.

  • Our team can service a wide range of brands and models of HVAC units. We can also install full commercial HVAC controls to ensure you can adjust the temperatures to your liking as you need it.

Professional coverage for your heating and air 24 hours a day, 7 days a week

1-year warranty on any new equipment installed by our team:







Check Commercial Residential Control Cooling