Founded in 1908, The Thomas J. Dyer Company is an employee-owned mechanical and plumbing contractor that installs building systems, handles process and industrial piping, and fabricates specialty components for complex projects across the United States. Its Cincinnati fabrication operation gives the company an unusual in-house reach, with a 36,000-square-foot shop producing custom skids and thousands of pipe spools each month. TJ Dyer is part of the Grote Enterprises family of companies and was recognized with a 2021 ACI Safety Excellence Award.
National Board “R” Stamp
certification
ASME “PP” Pressure Piping Stamp
certification
Certified Welding Inspector
certification
Certified Safety Professional (CSP)
certification
OSHA 10- and 30-hour Construction Outreach Trainer
certification
ASHRAE
certification
LEED
certification
ACI
certification
ASME
certification
PCI ServicesFamily-owned and operated in Cincinnati since 1896, PCI Services designs, fabricates, installs, and maintains mechanical systems for commercial and industrial facilities. Four generations of Fennell family leadership have carried the company from its Newport mechanical-contracting roots into a regional contractor known for industrial piping, HVAC work, and in-house fabricated mechanical skids. Its Cincinnati operation includes a 55,000-square-foot fabrication and assembly facility, while its safety program reports a 0.62 EMR over the past decade.CINCINNATI, OH
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
Wm. T. Spaeder CompanyFounded in Erie in 1914, family-owned Wm. T. Spaeder Company provides mechanical contracting and in-house fabrication for commercial, industrial, institutional, and residential projects. Its fabrication work ranges from process piping and structural assemblies to custom HVAC ductwork, supported by BIM and VDC capabilities and a shop staffed by certified welders. The company serves customers across Erie, Pittsburgh, and Buffalo and has handled specialized projects such as a 267-foot ship conveyor boom and 13 wastewater-treatment skids for a Georgia power plant.DEPEW, NY
Driekast Piping CorporationIn business since 1987, Driekast Piping Corporation is a Cincinnati mechanical contractor known for serving both public- and private-sector projects with qualified craft and trade workers. The company handles HVAC and process piping work, while also giving back locally through volunteering, sponsorships, and scholarships.CINCINNATI, OH