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EX-31.1 - EX-31.1 - COMFORT SYSTEMS USA INCfix-20171231ex311d1856a.htm
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EX-32.2 - EX-32.2 - COMFORT SYSTEMS USA INCfix-20171231ex322fd6bac.htm
EX-32.1 - EX-32.1 - COMFORT SYSTEMS USA INCfix-20171231ex32131a616.htm
EX-31.2 - EX-31.2 - COMFORT SYSTEMS USA INCfix-20171231ex3121700d8.htm
EX-23.1 - EX-23.1 - COMFORT SYSTEMS USA INCfix-20171231ex231a06d65.htm

EXHIBIT 21.1

 

SUBSIDIARIES OF COMFORT SYSTEMS USA, INC.

as of December 31, 2017

 

ENTITY NAME

    

DOMESTIC
JURISDICTION

    

FORMATION
DATE

 

ACI Mechanical, Inc. 

 

Delaware

 

06/26/1998

 

ARC Comfort Systems USA, Inc. 

 

Delaware

 

03/17/1998

 

Accu-Temp GP, Inc. 

 

Delaware

 

05/21/1998

 

Accu-Temp LP, Inc. 

 

Delaware

 

05/20/1998

 

Acorn Industrial, LLC 

 

North Carolina

 

01/03/1997

 

Air Systems Engineering, Inc. 

 

Washington

 

05/18/1973

 

AirTemp, Inc. 

 

Maine

 

10/15/1998

 

Atlas-Accurate Holdings, L.L.C. 

 

Delaware

 

12/28/1998

 

Batchelor’s Mechanical Contractors, LLC

 

Alabama

 

03/16/1981

 

BCH Holdings, Inc.

 

Florida

 

12/28/2004

 

BCH Leasing, LLC

 

Florida

 

10/25/1990

 

BCH Mechanical, L.L.C.

 

Florida

 

10/19/1976

 

BCM Controls Corporation

 

Massachusetts

 

10/03/1984

 

California Comfort Systems USA, Inc. 

 

California

 

05/18/1983

 

Century Mechanical Solutions, Inc.

 

Ohio

 

12/17/1946

 

ColonialWebb Contractors Company

 

Virginia

 

2/18/1977

 

Comfort Systems USA (Arkansas), Inc. 

 

Arkansas

 

03/17/1998

 

Comfort Systems USA (Baltimore), LLC

 

Delaware

 

10/15/1998

 

Comfort Systems USA (Bristol), Inc. 

 

Delaware

 

08/25/1997

 

Comfort Systems USA Energy Services, Inc. 

 

Delaware

 

08/25/1997

 

Comfort Systems USA G.P., Inc. 

 

Delaware

 

08/12/1998

 

Comfort Systems USA (Indiana), LLC

 

Indiana

 

06/08/2015

 

Comfort Systems USA (Intermountain), Inc. 

 

Utah

 

05/06/1969

 

Comfort Systems USA (Kentucky), Inc. 

 

Kentucky

 

02/10/1981

 

Comfort Systems USA (MidAtlantic), LLC

 

Virginia

 

01/01/2010

 

Comfort Systems USA (Midwest), LLC

 

Iowa

 

10/13/2009

 

Comfort Systems USA (Northwest), Inc. 

 

Washington

 

02/14/1984

 

Comfort Systems USA (Ohio), Inc. 

 

Ohio

 

10/10/1979

 

Comfort Systems USA Puerto Rico, Inc. 

 

Puerto Rico

 

08/09/1991

 

Comfort Systems USA (South Central), Inc.

 

Texas

 

5/24/2007

 

Comfort Systems USA (Southeast), Inc. 

 

Delaware

 

03/24/1998

 

Comfort Systems USA (Southwest), Inc.

 

Arizona

 

12/23/1997

 

Comfort Systems USA Strategic Accounts, LLC

 

Indiana

 

07/28/1998

 

Comfort Systems USA (Syracuse), Inc. 

 

New York

 

03/08/1965

 

Comfort Systems USA (Texas), L.P. 

 

Texas

 

08/14/1998

 

Comfort Systems USA (Western Michigan), Inc. 

 

Michigan

 

07/21/1989

 

ConServ Building Services of Alabama, LLC

 

Alabama

 

12/28/2012

 

ConServ Building Services of Georgia, LLC

 

Georgia

 

11/04/2008

 

ConServ Building Services of Tennessee, LLC

 

Tennessee

 

01/07/2010

 

ConServ Building Services of Texas, LLC

 

Texas

 

01/22/2010

 

ConServ Building Services, LLC

 

Florida

 

01/05/2005

 

ConServ Buildings Services of North Carolina, LLC

 

North Carolina

 

03/22/2010

 

Control Concepts, LLC

 

Georgia

 

12/16/1996

 

Control Concepts Mechanical Services, LLC

 

Georgia

 

01/17/2008

 

CS53 Acquisition Corp. 

 

Delaware

 

01/26/1999

 

CSUSA (10), LLC

 

North Carolina

 

10/21/2011

 

Delcard Associates, LLC 

 

Delaware

 

06/23/2000

 

Design Mechanical Incorporated

 

Colorado

 

10/30/1997

 


 

ENTITY NAME

    

DOMESTIC
JURISDICTION

    

FORMATION
DATE

 

Dyna Ten Corporation

 

Texas

 

06/26/1980

 

Dyna Ten Maintenance Services, LLC

 

Texas

 

08/07/2006

 

Eastern Heating & Cooling, Inc. 

 

New York

 

12/19/1988

 

Eastern Refrigeration Co., Inc. 

 

New York

 

01/30/1990

 

Environmental Air Systems, LLC

 

North Carolina

 

10/07/2011

 

Envirotrol, LLC

 

North Carolina

 

10/07/2011

 

Granite State Holdings Company, Inc. 

 

Delaware

 

11/02/2005

 

Granite State Plumbing & Heating, LLC

 

New Hampshire

 

07/31/2001

 

H & M Mechanical, Inc. 

 

Alabama

 

08/06/1998

 

Helm Corporation

 

Colorado

 

10/26/1972

 

Hess Mechanical, LLC

 

Maryland

 

01/07/2016

 

Mechanical Technical Services, Inc. 

 

Texas

 

05/24/2007

 

MJ Mechanical Services, Inc. 

 

Virginia

 

12/12/1997

 

North American Mechanical, Inc. 

 

Delaware

 

03/17/1998

 

Quality Air Heating and Cooling, Inc. 

 

Michigan

 

09/10/1980

 

Riddleberger Brothers, Inc. 

 

Virginia

 

12/22/1958

 

Royalaire Holdings, LLC

 

Florida

 

03/22/2006

 

Royalaire Mechanical Services II, LLC

 

Florida

 

09/27/2010

 

Royalaire Mechanical Services, LLC

 

Florida

 

09/12/2006

 

S.I. Goldman Company, Inc. 

 

Florida

 

10/04/1976

 

S.M. Lawrence Company, Inc. 

 

Tennessee

 

03/08/1973

 

Seasonair, Inc. 

 

Maryland

 

10/28/1966

 

ShoffnerKalthoff MES, Inc.

 

Tennessee

 

08/18/2005

 

Temp Right Service, Inc. 

 

Delaware

 

09/25/1997