Call to Schedule a Consultation: (240) 683-6900 And get your building EnergyStar Rated
Commercial HVAC Installation DC | Thornton Service Commercial HVAC Installation DC | Thornton Service

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.

Our Valued Commercial HVAC ClientsCommercial HVAC Installation, Maintenance, and Repairs for Clients Throughout the Greater Washington DC Metro Area

Thornton Service approaches each client as a partner. We work with data centers, technology companies, residential highrise buildings, government entities, and a variety of other Washington DC facilities to increase their uptime, lower their operating costs, and promote a better future through commercial HVAC installation and maintenance. For more than 40 years, commercial clients have relied on our HVAC installation, maintenance, and repair services to keep their equipment functioning well at the lowest cost possible.

Whether your building needs ongoing HVAC maintenance, an emergency HVAC repair, or a long-term solution to improve energy efficiency, our experienced HVAC technicians can help.

Choose Thornton Service for Commercial HVAC Service that Includes:

  • Consistent, reliable service regardless of size or industry
  • An HVAC company partner who knows your business
  • Experienced technicians trained specifically on your brand equipment
  • A trusted resource to manage emergencies
  • Advice on ways to save energy and money

Thornton Service is a privately held HVAC company. We support and appreciate the Washington DC community where each of our team members and our clients lives and work. As a Thornton Service client, you’ll always be assigned a dedicated team member to meet in person, answer your questions, understand your facility’s unique challenges, and provide guidance to overcome issues and improve your bottom line.

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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