Business and Organization

12 Months Ended

Dec. 31, 2017

Business and Organization

Business and Organization

1. Business and Organization

Comfort Systems USA, Inc., a Delaware corporation, provides comprehensive mechanical contracting services, which principally includes heating, ventilation and air conditioning (“HVAC”), plumbing, piping and controls, as well as off-site construction, electrical, monitoring and fire protection. We install, maintain, repair and replace products and systems throughout the United States. Approximately 38% of our consolidated 2017 revenue is attributable to installation of systems in newly constructed facilities, with the remaining 62% attributable to maintenance, repair and replacement services.

Our consolidated 2017 revenue was derived from the following service activities, all of which are in the mechanical services industry, the single industry segment we serve:

	Revenue
Service Activity	$ in thousands		%
HVAC and Plumbing	$	1,615,468	90	%
Building Automation Control Systems		94,041	5	%
Other		78,413	5	%
Total	$	1,787,922	100	%