Business and Organization

12 Months Ended

Dec. 31, 2015

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 44% of our consolidated 2015 revenue is attributable to installation of systems in newly constructed facilities, with the remaining 56% attributable to maintenance, repair and replacement services.

        Our consolidated 2015 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	$	1,216,999		77	%
Plumbing		221,273		14	%
Building Automation Control Systems		79,026		5	%
Other		63,221		4	%
Total	$	1,580,519		100	%