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

  • Greg Pickens

  • HVAC

K.G. Sheet Metal LLC

  • 301 Prince Georges Boulevard, Suite D, Upper Marlboro, MD 20774
  • 301-390-2405

  • Kevin Grenier

A.G. Prada Company 

  • 2122 Conway Road, Beltsville, MD 20705

  • 301-419-2594

  • Patrick Prada

  • Mechanical Contractor

Linx Industries

  • 2600 Airline Boulevard, Portsmouth, VA 23701

  • 757-488-1144

  • Ryan Johnson 
  • Fabrication Round & Flat Oval, Yellow Label HVAC

All Seasons AC & Heating

  • 11900 SW McMullen Highway, Cumberland, MD 21502

  • 301-777-8007

  • Dale Peer

  • Residential

Mecco, Inc.

  • 10545 Guilford Road, Suite 105, Jessup, MD 20794
  • 301-953-7600
  • Mechanical Contractor

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

Metro Mechanical Contractors

  • 5611 Lafayette Place, Hyattsville, MD 20781
  • 301-927-4077
  • Dale Trunnell & Ninian Anderson

  • HVAC

Ample Sheet Metal

  • P.O. Box 936, Pasadena, MD 21123-0639

  • 410-760-6401

  • Gary March & Bryan Malle

  • HVAC & Industrial

Metro Test & Balance, Inc.

  • 9600 Fallard Court, Upper Marlboro, MD 20772
  • 301-808-3660

  • Frank Battaglino

  • HVAC, Air Testing & Balancing

Arica Consulting & Contracting, LLC

  • 8309-A Sherwick Court, Jessup, MD 20794

  • 301-498-4441

  • Thomas Twigg
  • HVAC

Mid-Atlantic Metal Works, Inc.

  • 101 Winston Street, Cumberland, MD 21502

  • 301-722-2215
  • Pamela Robinson

Benedict Metal Works, Inc.

  • 15123 Marlboro Pike, Upper Marlboro, MD 20772

  • 240-545-1100

  • Jim & Elizabeth Sanders

  • Minority Contractor, HVAC-Commercial

Noel Sheet Metal Fabrication, Inc.

  • Shop: 4342 Charles Crossing Drive, White Plains, MD 20695
  • Mail: 7450 Bensville Road, Waldorf, MD 20603
  • 301-843-8785  
  • John Noel & Mark Noel

  • HVAC

C & T Mechanical, Inc.

  • 1103 Oldtown Road, Cumberland, MD 21502

  • 301-724-3660

  • HVAC, Commercial & Residential

Norair Engineering

  • 337 Brightseat Road, Landover, MD 20785

  • 301-499-2202

  • Jim Walker, Jr.

CMC Sheet Metal

  • 1208 Marblewood Avenue, Capitol Heights, MD 20743

  • 301-925-4040

  • HVAC

O’Malley Sheet Metal, Inc.

  • 3621 Cameron Court, Ellicott City, MD 21042
  • 443-506-7405

  • Kevin O’Malley
  • HVAC

Comfort Control, Inc.

  • 6711 Distribution Drive, Beltsville, MD 20705

  • 301-931-9300

  • Balancing

OOO Enterprises, Inc.

  • P.O. Box 86, Berlin Center, OH 44401

  • 330-547-0372

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

D.C. Duct and Sheet Metal LLC

  • 2520 Pennsylvania Avenue SE, Washington, D.C. 20020

  • 301-864-3828

  • Gary Porter

  • HVAC Fabrication

PTL Contracting, LLC

  • 8411 Old Marlboro Pike, Unit 24, Upper Marlboro, MD 20772

  • 202-497-0113

  • Martin Divver
  • Roofing 

Densel Company

  • 7640-A Airpark Road, Gaithersburg, MD 20879

  • 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

  • 301-925-4040

  • 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 Products, Inc.

  • 1967 Blue Hills Drive NE, Roanoke, VA 24012

  • 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

  • Randy Rice

Southland Industries

  • 22340 Dresden Street, #177, Dulles, VA 20166

  • 703-834-5570

  • Rob Delawder
  • Energy Management Retrofit

Hot & Cold Corporation

  • Contact Local 100 for information

CMC Sheet Metal

  • 1208 Marblewood Avenue, Capitol Heights, MD 20743

  • 301-925-4040

  • HVAC

IAC Metals, Inc.

  • 8482 Virginia Meadows Drive, Manassas, VA 20109 
  • 703-257-4945

  • Charles Jayne
  • HVAC, Commercial, Air Testing & Balancing

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

  • Minority Contractor

SSM Industries, Inc.

  • 3401 Grand Avenue, Pittsburgh, PA 15225

  • 412-777-5100

  • Mechanical & Industrial

James Myers Company, Inc.

  • 12306 Conway Road, Beltsville, MD 20705
  • 301-419-0091

  • Jim Myers

  • Roofing, Sheet Metal

Stromberg Metal Works, Inc.

  • 6701 Distribution Drive, Beltsville, MD 20705
  • 301-931-1000

  • Gary Valdisera & Jerry Robinson

  • HVAC, Welding Architectural & Specialty Metal Work

James R. Walls Contracting

  • 5320 Sunnyside Avenue, Beltsville, MD 20705
  • 301-622-3000

  • Todd Walls

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

J.B. Whelan, Inc.

  • 1208 Marblewood Avenue, Capitol Heights, MD 20743

  • 301-925-4040

  • John Whelan

W.E. Bowers & Associates, Inc.

  • 7101 Muirkirk Road, Beltsville, MD 20705

  • 301-419-2488
  • Kenny Colburn

  • HVAC Commercial

Journeyman Mechanical Contractors, Inc.

  • 2125 Baldwin Avenue, Suite 19B, Crofton, MD 21114

  • 301-261-6200

  • Derril Mackin

  • Mechanical HVAC