COMFORT SYSTEMS USA INC — Director's Dealing 2012

Dec 3, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: COMFORT SYSTEMS USA INC (FIX)
CIK: 0001035983
Period of Report: 2012-11-29

Reporting Person: Shaeff Julie (Chief Accounting Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-11-29	Common Stock	M	5000	$4.18	Acquired	59671	Direct
2012-11-29	Common Stock	M	15000	$6.38	Acquired	74671	Direct
2012-11-29	Common Stock	S	14333	$10.806	Disposed	60338	Direct
2012-11-30	Common Stock	S	5667	$10.758	Disposed	54671	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-11-29	Option to Buy	$4.18	M	5000	Disposed	2013-11-19	Common Stock (5000)	Direct
2012-11-29	Option to Buy	$6.38	M	15000	Disposed	2015-05-18	Common Stock (15000)	Direct

Footnotes

F1: Represents the average price of shares sold. Full information regarding the number of shares sold and specific prices will be made available upon request to the Company's Office of the General Counsel.

F2: Stock options were granted on 11/19/2003, vested equally over a four-year period, and were fully vested on 11/19/2007.

F3: Stock options were granted on 5/18/2005, vested equally over a four-year period, and were fully vested on 5/18/2009.