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
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
Carter Mechanical, IncFounded in 1990 by HVAC contractor Andrew Carter, family-owned Carter Mechanical provides commercial mechanical construction and service from its Malvern, Pennsylvania headquarters. The company stands out for running its own on-site pipe and sheet metal fabrication shop, pairing custom fabrication with design-build work, building automation and ongoing maintenance for facilities across the Mid-Atlantic. Carter Mechanical has more than 50 full-time employees and serves projects ranging from commercial operations to universities and manufacturing facilities.MALVERN, PA