Isaac Blair & Co., Inc.

Isaac Blair & Co., Inc. was established in 1820 and purchased by Daniel Marr & Son in 1969. The company provides specialty construction shoring and rigging services and has developed an unparalleled expertise in solving complex shoring and rigging challenges.


historical faces and wall bracing photo

Historical Facades and Wall Bracing


foundation failure shoring photo

Foundation Failure


roof truss failure shoring photo

Roof Truss Failure


column replacement shoring photo

Column Replacement


calibrated jacking photo

Calibrated Jacking


needle shoring photo

Needle Shoring


environmental work shoring photo

Environmental Work


building remediation photo

Building Remediation