With decades of on-site experience, ARCOR Mechanical Systems is a West Virginia mechanical contractor known for lean construction that reduces material handling on commercial and industrial projects. It works primarily with general contractors, delivering pre-assembled systems directly to the jobsite and installing them the same day. ARCOR is one of seven fabrication shops in the state with UA Label certification to send welded piping systems to other jurisdictions.
UA Label Certification
certification
Gunning MechanicalFounded in 2005 by Dawn and Mike Gunning, Gunning Mechanical is a woman-owned, union Pittsburgh contractor building and maintaining commercial and industrial HVAC, piping and sheet-metal systems. Its in-house fabrication shop gives the company direct control over ductwork timing and quality, while certified tradespeople serve projects across Western Pennsylvania, Eastern Ohio and Northern West Virginia. The company’s safety program has earned repeated Master Builders’ Association recognition, including a 2024 Excellence in Safety award.238220CRANBERRY TOWNSHIP, PA
TP MechanicalFounded in Cincinnati in 1953, TP Mechanical is a regional mechanical contractor that designs, builds, fabricates and services building systems for commercial and mission-critical facilities. Its 100,000-square-foot distribution center supports a distinctive prefabrication approach, including fully assembled mechanical rooms shipped ready for installation. TP also operates a state-certified apprenticeship program and became the first U.S. mechanical contractor accepted into OSHA’s Voluntary Protection Program with Star status in 2005.CINCINNATI, OH
Walton & CompanySince its founding in York in 1989, Walton & Company has grown from a six-person startup into a regional mechanical contractor with roughly 250 employees. The company is known for keeping design, fabrication and service connected under one roof, giving commercial and industrial clients a single team accountable for a system’s long-term performance. Its workforce averages more than 10 years of tenure, and its current president, Jason Hamme, began with the company as a plumbing laborer in 1997.YORK, PA
Pioneer Conveyor, LLCKnown for producing thousands of custom conveyor systems, Pioneer Conveyor is a West Virginia manufacturer serving bulk-material customers across North America. Its in-house operation brings engineering and fabrication together, with a patent-pending catenary line reflecting the company’s focus on tailored conveyor solutions.BRUCETON MILLS, WV