Airdronic Test & Balance, Inc.
801 1st Ave.
Rochelle, IL 61068
(815) 561-0339

Christiansen, Inc.
820 7th St.
Rockford, IL 61104-9960
(815) 962-5700
http://shcroofing.com

Comfort Zone Heating & Cooling
1602 S. Main St.
Rockford, IL 61102
(815) 633-5339

www.mecogroup.com

D & E Sheet Metal
P.O. Box 189
Davis Junction, IL 61020
(815) 645-4347

DeKalb Mechanical
339 Wurlitzer Dr.
DeKalb, IL 60115
(815) 756-6528
www.mecogroup.com

Distinguished Sheet Metal, Inc.
PO Box 5382
Rockford, IL 61125
(815) 489-3944

Freeport Industrial Roofing, Inc.
3507 Route 26 South
Freeport, IL 61032
(815) 235-5350

Freeport Sheet Metal
1650 Armstrong
Freeport, IL 61032
(815) 233-1271

Gilley’s Heating & Air Conditioning, Inc.
4465 Prairie Road
Rockford, IL 61102
815-962-1927
www.gilleysheating.com

Jim Holder Heating & Co.
978 Old Ralston Rd.
Machesney Park, IL 61115
(815) 654-7344

John A. Loos Sons, Inc.
2711 Locust St.
Sterling, IL 61081
(815) 625-0146

Kallal's Sheet Metal, Inc.
112 Industrial Ave.
DeKalb, IL 60115
(815) 756-9561

Larson Sheet Metal
6419 Material Ave.
Loves Park, IL 61111-4247
(815) 877-4134

LM Sheet Metal
6727 Elm Ave.
Loves Park, IL 61111
(815) 654-1837
www.LMSheetMetalinc.com

Loescher Heating & AC
1860 S Walnut Rd.
Freeport, IL 61032
(815) 232-6166
www.mecogroup.com

Master Sheet Metal
1602 S. Main St.
Rockford, IL 61102
(815) 965-5425
www.mecogroup.com

Miller Engineering
1616 S Main St.
Rockford, IL 61102
(815) 963-4878
www.mecogroup.com

National Metal Works
916 River Lane
Loves Park, IL 61111
(815) 282-5533
www.hvacnational.com

Nesterowicz & Associates, Inc.
313 W Main St.
Kirkland, IL 60146
(815) 522-4469

Norstar Mechanical Industries
2121 15th St.
Rockford, IL 61104
(815) 398-1969
www.norstarhvac.com

Northwestern Service Company
68 E Monterey

PO Box 36
Freeport, IL 61032
(815) 801-1148

Rockford Heating & AC
1618 Magnolia St.
Rockford, IL 61108
(815) 965-9494

Sheet Metal Connectors, Inc.
5601 Sandy Hollow Road
Rockford, IL 61109
815-874-4600
www.smcduct.com

Superior Heating & Air Conditioning, Inc.
217 E. Railroad St.

PO Box 16
Lena, IL 61048
815-369-4876