Contact Us

24659 Schoenherr Rd.
Warren, MI 48089

Phone: (586) 754-4370
Fax: (586) 754-4371
Pittsburgh, PA Office

Herm McAfoose
Phone: (724) 664-5411
Fax: (412) 291-3203
Youngstown, OH Office

8392 Tod Ave, Suite1
Boardman, OH 44512

Paul Spalding
Phone: (330) 272-0021
Fax: (330) 272-0027
Service Group

Phone: (586) 619-0281
Fax: (586) 486-5242

Company Profile – Detroit – Youngstown – Pittsburgh - Youngstown

History & Structure

DE-CAL Mechanical is a full service Union Mechanical Contracting firm typically employing over 400 full-time office and field personnel. Founded in 1992, DE-CAL, Inc. is a privately-held corporation owned and managed by Andrew Calcaterra, President and Randall DeBeul, VP. Over 100,000 sq. ft. of corporate offices, warehouses and fabricating facilities . in Detroit, Youngstown and Pittsburgh serve the Michigan, Ohio and Pennsylvania regions.

Key Personnel

Andrew Calcaterra, P.E., C.I.P.E.

Randall J. DeBeul

Frank Gambino

Brian Martin

Derek Eskew

Mark Biro

Steve Koralewski


Executive Vice President

Vice President of Operations

Chief Financial Officer

General Superintendent


Safety Director

Financial Information

Piping Contractor, Detroit Insurance:
Szura Insurance
109 E. Forth St
Rochester, MI 48307
Doug Charon: (248) 651-4487

Zervos Group, Inc.
24724 Farmbrook Rd.
P.O. BOX 2067
Southfield, MI 48037-2067
Angelo Zervos: (248) 355-4411

Accounting Information:
Cohen & Co, P.C.
21420 Greater Mack Avenue
St. Clair Shores, MI 48080
Mike Lorenz: (586) 772-8100

Bank Reference:
Talmer Bank and Trust
David Rozewski
100 N. Main Street
Mt. Clemens, MI 48043
586-349-4117 Office
586-349-4200 Fax
586-201-9663 Cell

License & Affiliations

ASME Stamp for Process Piping
  • Unlimited Mechanical Contractor
  • Master Plumber
  • Boiler Installer Class 4B High Pressure Steam
  • Professional Engineer
  • ASME Code Stamps PP, R, S, U
  • Fire Protection

Members of:

  • American Society of Plumbing Engineers
  • American Society of Heating, Refrigeration, & Air Cond. Engineers
  • Engineering Society of Detroit
  • Mechanical Contractors Association
  • Plumbing & Heating Industry of Detroit
  • Association for Iron & Steel Technology
  • American Water Works Association
  • American Petroleum Institute

Call (586) 754-4370 or click to reach De-Cal, Inc. Mechanical Contractor.

Mechanical Contractor | Michigan, Western Pennsylvania, Ohio

De-Cal, Inc. is a Mechanical Contractor serving Southeastern Michigan, Northern Ohio & Western Pennsylvania. We have offices located in Warren & Detroit, Michigan and Pittsburgh, Pennsylvania.