Barnett Mechanical Services is a State of Ohio BWC approved Drug Free Workplace Program Construction Contractor.

Barnett Mechanical Services is a Certified Columbus City Schools LEDE Contractor. 

Barnett Mechanical Services is a Certified MBE with The City Of Columbus.

Barnett Mechanical Services is a Certified MBE Contractor with The State of Ohio.


Barnett Mechanical Services is a Certified MBE Contractor with The City of Dayton.


Barnett Mechanical Services is a Certified MBE with The Commonwealth of Kentucky.

Barnett Mechanical Services is a Certified EDGE Contractor with The State of Ohio.

Barnett Mechanical Services is a Certified DBE Contractor with The Ohio Department of Transportation.

Certifications