Founded in Chicago in 1918 as a boiler repair shop, Hayes Mechanical is a full-service mechanical contractor serving commercial and industrial facilities. The company has grown from its family-owned beginnings into a union contractor with a 138,000-square-foot operation, while retaining deep expertise in pressure-vessel work and industrial maintenance. Hayes holds three ASME certificates and the National Board “R” stamp, and provides round-the-clock emergency support backed by a dedicated safety team.
ASME A Stamp
certification
ASME S Stamp
certification
ASME U Stamp
certification
National Board R Stamp
certification
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