Call to Schedule a Consultation: (240) 683-6900 And get your building EnergyStar Rated
HVAC Technicians DC - Commercial HVAC Contractors Virginia HVAC Technicians DC - Commercial HVAC Contractors Virginia

A leading commercial HVAC company serving Washington DC, Virginia, and Maryland.

Thornton Service provides commercial HVAC services to clients throughout the Washington metropolitan area. 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.

See how we keep HVAC systems functioning at peak efficiency.

Commercial HVAC Technicians Servicing the Greater Washington DC Metro AreaProfessional, Reliable, and Highly Trained Commercial HVAC Contractors for Washington DC and Northern Virginia

Thornton Service understands that today’s mechanical systems are more complicated than ever before. We’re seeing components become more interdependent, software overtaking hardware, and energy costs rising. When you work with a commercial HVAC service company, dependable and knowledgeable HVAC technicians are essential to prevent unnecessary repair costs and keep equipment functioning at its best.

With Thornton, you’ll no longer need to find and manage various contractors to maintain complex building systems. We consistently invest in the most qualified, energy conscious HVAC technicians in the Washington DC region to keep your mission-critical equipment running smoothly and efficiently.

Our skilled commercial HVAC contractors are trained, reliable, and make a point to proactively prevent equipment failure or inefficiency so our clients are protected over the long term. Working with Thornton, you can expect HVAC technicians who have:

  • Management review of every service call
  • Detailed maintenance tasking
  • Backing by in-house project managers
  • Partnerships with certified energy managers

Our parent company, Service Logic, is a long time training partner of many of the major equipment manufacturers, so our certified HVAC technicians are continually coached on the latest technological innovations as they come out. They also go through rigorous training to meet both of these industry designations:

MSCA STAR® Qualified

MSCA STAR is an achievement designation for service excellence awarded to an elite group of mechanical service contractors by the Mechanical Service Contractors of America (MSCA). MSCA STAR® companies have demonstrated that they offer unsurpassed support, quality workmanship and safe, reliable service to commercial business and facilities customers.

MSCA GreenSTAR® Certified

MSCA GreenSTAR is an exclusive designation available only to commercial HVAC contractors who have clearly demonstrated environmental responsibility and a commitment to energy savings. It is recognized by the United States Green Building Council (USGBC) to advocate MSCA STAR® leadership in sustainable mechanical service.

HVAC Equipment Serviced

Currently, Thornton Service manages approximately 150 HVAC maintenance accounts in the Washington, DC metropolitan area. The journeymen technicians that comprise this mobile commercial heating and cooling service division are members of Steamfitters Local 602 and are trained and certified on HVAC equipment from the following major brands:

  • Trane
  • Carrier
  • York
  • B.A.C. (Baltimore Aircoil)
  • Siemens AG
  • Johnson Control
  • Honeywell
  • McQuay
  • Liebert
  • Cleaver Brooks
  • Aaon
  • Mitsubishi
  • Marley
  • Evapco
  • Data Aire

Contact us to schedule a consultation with Thornton Service today.

Get Your Building Energy Star Rated
Schedule a Consultation

How is Your Building Operating Right Now? Protect Your Mechanical Systems

Preventative HVAC maintenance programs maximize efficiency and minimize equipment downtime. Make sure your commercial heating and cooling systems are on a healthy schedule with a customized HVAC maintenance program.

How to Save Money With Energy Efficient Systems

We know the path to energy sustainability is a journey not an event. We partner with each client to analyze their utility bills, identify no-cost/low-cost savings opportunities, implement operations and maintenance practices and identify system upgrades and retrofits with a return on investment.

What goes into an HVAC System? Built Up system vs. Package (Unitary) system

Which one is right for your facility? See the difference and learn about the components each includes.

(c) 2019 Thornton Service, Inc.
2401 Research Blvd., Suite 204 • Rockville, MD 20850 Phone: 240-683-6900Fax: 240-683-1147Email:

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