Call to Schedule a Consultation: (240) 683-6900 And get your building EnergyStar Rated
Washington D.C Executive HVAC Professionals Washington D.C Executive HVAC Professionals

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.

Meet Our Executive Team of HVAC Professionals

Read below to learn about the Thornton Service team or contact Thornton Service for help with your commercial HVAC maintenance and repair needs.

Ronald E. Serabian, President 

Ron has been the general manager and/or owner of Thornton Service or its predecessor since 1987. His background also includes 10 years as the Director of the Allied Products Division of Carrier Corporation. Ron is responsible for business development and maintaining customer relationships with Thornton Service’s large facility accounts.

Joseph M. McNamara, Jr., Executive Vice President

Joe has been with Thornton Service or its predecessor since 1987, and he has strong Operations, Sales and Sales Management experience. His responsibilities include subcontractor coordination of large facility accounts, business development and marketing.

Matthew F. Morin, Vice President, Operations

Matt has been with Thornton Service since 2002 and has served in both Sales and Operations. He is directly responsible for the operation of the mobile division, including project sales, coordination and pricing.

Alfio Bruno, Vice President, Finance

Alfio has been with Thornton Service since 2009 and is responsible for overall company financial operations. He brings to Thornton Service 35 years of finance experience with the U.S. State Department Federal Credit Union.

Patrick Serabian, Operations Manager, Facilities Division

Patrick handles Thornton Service’s day-to-day facility operations, as well as marketing and corporate branding; his background includes Operations and Accounting support.

Joseph McNamara, III, Operations Manager, Mobile Division

Joe schedules all maintenance and repair for Thornton Service’s mobile division’s customers. He is responsible for pricing, quotations, work schedule coordinating and expediting repairs.

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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