SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person* Young Terrence Andrew (Last) (First) (Middle) 675 BERING DRIVE, SUITE 400 (Street) HOUSTON TX 77057 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 01/01/2019	3. Issuer Name and Ticker or Trading Symbol COMFORT SYSTEMS USA INC [ FIX ]
		4. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner X Officer (give title below) Other (specify below) Senior Vice President Service	5. If Amendment, Date of Original Filed (Month/Day/Year)
			6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	300	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

	/s/ Laura F. Howell, by power of attorney	01/09/2019
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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Exhibit 24

Limited Power of Attorney for Section 16 Reporting Obligations

The undersigned hereby makes, constitutes, and appoints Laura F. Howell,
acting individually, as the undersigned's true and lawful attorney-in-
fact, with full power and authority as hereinafter described on behalf of
and in the name, place, and stead of the undersigned to:

     1) prepare, execute, acknowledge, deliver, and file Forms 3, 4, and
5 (including any amendments thereto) with respect to the securities of
Comfort Systems USA, Inc., a Delaware corporation (the "Company"), with
the United States Securities and Exchange Commission, any national
securities exchanges, and the Company, as considered necessary or
advisable under Section 16(a) of the Securities Exchange Act of 1934 and
the rules and regulations promulgated thereunder, as amended from time to
time (the "Exchange Act");

     2) seek or obtain, as the undersigned's representative and on the
undersigned's behalf, information on transactions in the Company's
securities from any third party, including brokers, employee benefit plan
administrators, and trustees, and the undersigned hereby authorizes any
such person to release any such information to the attorney-in-fact and
approves and ratifies any such release of information; and

     3) perform any and all other acts that, in the discretion of such
attorney-in-fact, are necessary or desirable for and on behalf of the
undersigned in connection with the foregoing.

The undersigned acknowledges that:

     1)this Power of Attorney authorizes, but does not require, such
attorney-in-fact to act in his or her discretion on information provided
to such attorney-in-fact without independent verification of such
information;

     2)any documents prepared and/or executed by such attorney-in-fact on
behalf of the undersigned pursuant to this Power of Attorney will be in
such form and will contain such information and disclosure as such
attorney-in-fact, in his or her discretion, deems necessary or desirable;
neither the Company nor such attorney-in-fact assumes (i) any liability
for the undersigned's responsibility to comply with the requirement of
the Exchange Act, (ii) any liability of the undersigned for any failure
to comply with such requirements, or (iii) any obligation or liability of
the undersigned for profit disgorgement under Section 16(b) of the
Exchange Act; and
     3)this Power of Attorney does not relieve the undersigned from
responsibility for compliance with the undersigned's obligations under
the Exchange Act, including without limitation the reporting requirements
under Section 16 of the Exchange Act.
     4)The undersigned hereby gives and grants the foregoing attorney-in-
fact full power and authority to do and perform all and every act and
thing whatsoever requisite, necessary, or appropriate to be done in and
about the foregoing matters as fully to all intents and purposes as the
undersigned might or could do if present, hereby ratifying all that such
attorney-in-fact of, for, or on behalf of the undersigned, shall lawfully
do or cause to be done by virtue of this Limited Power of Attorney.
This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4, and 5 with respect
to the undersigned's holdings of and transactions in securities issued by
the Company, unless earlier revoked by the undersigned in a signed
writing delivered to the foregoing attorney-in-fact.
IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to
be executed in Harris County, Texas as of this _2nd__ date of January,
2019.

_/s/ Terrence A. Young_____________________________________
Terrence A. Young