Work with us
Local 100 is proud to partner with more than 48 signatory contractors who share our goals of safe and efficient worksites, top-quality training, and state-of-the-art technology. Local 100 prides itself on partnering with a diverse group of dedicated contractors across the sheet metal industry. Our partners provide competitive contractual arrangements to accommodate the needs and sustainability of our partners, members, and the local industry, while maintaining a deep commitment to improving our communities.
Our cooperative efforts include labor management, organizing, and state-certified apprenticeship training programs. Our contractors and members have dedicated their time, talent, and resources for the purpose of providing quality craftsmanship at a fair and competitive price.
A.D.J. Sheet Metal, Inc.
4510 Graphics Drive, White Plains, MD, 20695
301-283-3000
Mike Doerk
HVAC
Journeyman Mechanical Contractors, Inc.
2125 Baldwin Avenue, Suite 19B, Crofton, MD 21114
301-261-6200
Derril Mackin
Mechanical HVAC
A.G. Prada Company
Contact Local 100 for information
James R. Walls Contracting
- 7813 Delano Rd., Clinton, MD 20735-1868
- 301-856-3780
- Jim Walls
Architectural Sheet Metal
All Mechanical And Plumbing LLC
Contact Local 100 for information
K.G. Sheet Metal LLC
- 301 Prince Georges Boulevard, Suite D, Upper Marlboro, MD 20774
301-390-2405
Kevin Grenier
All Seasons AC & Heating
11900 SW McMullen Highway, Cumberland, MD 21502
301-777-8007
Phillip Peer
Residential
Linx Industries
2600 Airline Boulevard, Portsmouth, VA 23701
757-488-1144
- Ryan Johnson
Fabrication Round & Flat Oval, Yellow Label HVAC
American Testing
- 3220-F Corporate Court, Ellicott City, MD 21043
- 410-461-6211 (Baltimore) or 301-854-2117 (Washington)
Pat Kelly or Mike Kelly
Testing & Balancing
Mecco, Inc.
- 10545 Guilford Road, Suite 105, Jessup, MD 20794
- 301-953-7600
- Mechanical Contractor
Ample Sheet Metal
7501 Connelley Dr Ste A, Hanover, MD 21076
410-760-6401
Gary March & Bryan Malle
HVAC & Industrial
Metro Mechanical Contractors
- 5611 Lafayette Place, Hyattsville, MD 20781
- 301-927-4077
Dale Trunnell
HVAC
Arica Consulting & Contracting, LLC
8309-A Sherwick Court, Jessup, MD 20794
301-498-4441
- Thomas Twigg
HVAC
Metro Test & Balance, Inc.
- 9600 Fallard Court, Upper Marlboro, MD 20772
301-808-3660
Frank Battaglino
HVAC, Air Testing & Balancing
Benedict Metal Works, Inc.
231 Bugeye Square, Prince Frederick, MD 20678-3477
240-545-1100
Jim Sanders
Minority Contractor, HVAC-Commercial
Mid-Atlantic Metal Works, Inc.
101 Winston Street, Cumberland, MD 21502
- 301-722-2215
Residential
Bernward Mechanical
Contact Local 100 for information
Norair Engineering
337 Brightseat Road, Landover, MD 20785
301-499-2202
Specialty Work
BMore Heating and Cooling
Contact Local 100 for information
O’Malley Sheet Metal, Inc.
- 3621 Cameron Court, Ellicott City, MD 21042
443-506-7405
- Kevin O’Malley
HVAC
CMC Sheet Metal
1208 Marblewood Avenue, Capitol Heights, MD 20743
301-925-4040
- HVAC, Specialty Sheet Metal, Welding
OOO Enterprises, Inc.
Contact Local 100 for information
Comfort Control, Inc.
6711 Distribution Drive, Beltsville, MD 20705
301-931-9300
Balancing
Penn Air Control Inc
Contact Local 100 for information
Craftcorps Inc.
217 W. Williamsburg Road, Sandston, VA 23150
804-737-9296
Mark Mullen
Commercial, Building, Construction
Potomac Metal & Supply
P.O. Box 1415, Cumberland, MD 21502
301-722-4030
Cushing Manufacturing & Equipment Co.
2901 Commerce Road, P.O. Box 24365, Richmond, VA 23224
804-231-1161
- Ross Jennings
Production, Shop, Specialty Work
Pro Stainless
RT. 5, P.O. Box 830, Keyser, WV 26726
304-788-5041
Food & Beverage
PTL Contracting, LLC
Contact Local 100 for information
Densel Company
7640-A Airpark Road, Gaithersburg, MD 20879-4155
- Brian Miller
Light Commercial & Service Work
R.H. Lapp & Sons, Inc.
880 Kelly Road, Cumberland, MD 21502
301-724-6650
- Ray Bittner
HVAC & Pipe
East Coast Metal Systems, Inc.
P.O. Drawer 7372, Wheeling, WV 26003
304-909-4220
- Metal Roofing
R.S. Harritan Company, Inc.
13280 Formex Road, 24157 Richmond, VA 23224
- 804-275-7821
Randy Harritan & George Bolton
Heavy Industrial & Commercial
Environmental Balancing Corp.
401 Carroll Street #102, La Plata, MD 20646
301-868-6334
- Ray Hardesty
Air Testing & Balancing
Semco Duct & Acoustical
1967 Blue Hills Drive NE, Roanoke, VA 24012-8609
540-342-5930
Spiral Pipe & Fittings
Fingles Metalworks, Inc.
2256 Reisterstown Road, Baltimore, MD 21217
410-523-3300
- London Anthony
Seneca Balance Inc.
2301 Willoughby Beach Road, Edgewood, MD 21040
800-938-2252
Stan Fleischer
Air Testing & Balancing
Hite Associates, Inc.
- P.O. Box 1273, Cumberland, MD 21502
301-729-0920
Southland Industries
- Shop: 8397 Terminal Rd, Lorton, VA 22079
703-834-5570
Frank Roberts
Energy Management Retrofit
Hot & Cold Corporation
- Contact Local 100 for information
Spinfinity
- 4142 Melrose Avenue, NW Roanoke, VA 24017
- 540-283-9370
Rings for Spiral Pipe
I & B Associates, Inc.
- 6925 4th Street NW, Unit 201, Washington, D.C. 20012
202-269-2761
Harvey Brackett
SSM Industries, Inc.
3401 Grand Avenue, Pittsburgh, PA 15225
412-777-5100
Mechanical & Industrial
IAC Metals, Inc.
- 8482 Virginia Meadows Drive, Manassas, VA 20109
703-257-4945
- Charles Jayne
HVAC, Commercial, Air Testing & Balancing
Stromberg Metal Works, Inc.
- 6701 Distribution Drive, Beltsville, MD 20705
301-931-1000
HVAC, Welding Architectural & Specialty Metal Work
J.B. Whelan, Inc.
Contact Local 100 for information
W.E. Bowers & Associates, Inc.
- 12401 Kiln Court, Beltsville, MD 20705-1323
- 301-419-2488
Tim Aley
HVAC Commercial
James Myers Company, Inc.
- 12306 Conway Road, Beltsville, MD 20705
301-419-0091
Jim Myers
Roofing, Sheet Metal
Walter N. Yoder & Sons, Inc.
Route 6, McMullen Highway, P.O. Box 1337 Cumberland, MD 21502
301-729-0610
Bill Hunter
HVAC & All Major Fabrication