A leading commercial HVAC company serving Washington DC, Virginia, and Maryland.
Heating, A/C and Energy Solutions
We have partnered with clients across our nation’s capital to deliver reliable mechanical services and improve efficiencies for over 35 years.
Why Thornton Service?
Established in 1994, but with roots reaching back to 1982, we have partnered with clients across our nation’s capital to deliver reliable mechanical services and improve efficiencies for over 35 years. Our skilled HVAC technicians specialize in preventive maintenance and repair of commercial heating and cooling systems. From emergency repair to maintenance-only HVAC contracts and facilities management, we support a range of industries, including healthcare, education, government and mission critical data centers.
Industries we serve.
-
Commercial
Learn More -
Mission Critical Facilities
Learn More -
Research & Development
Learn More -
Healthcare
Learn More -
Education
Learn More -
Government
Learn More -
Custom Use
Learn More -
Commercial
Learn More -
Mission Critical Facilities
Learn More -
Research & Development
Learn More -
Healthcare
Learn More -
Education
Learn More -
Government
Learn More -
Custom Use
Learn More
Begin your HVAC career search.
As a service company, our engineers, technicians and support staff are our most important resource. Are you ready to work for Thornton Service?
What Goes Into an HVAC System?
Learn about Built Up and Unitary Systems.