About Us


What We Do


OMC’s areas of expertise consists of the integration, installation, start-up, repair and maintenance of HVAC systems of commercial and industrial clients throughout Western New  York.  Our fire protection division provides comprehensive fire protection services.   We will recommend the best cost-effective solutions that meet and exceed the needs of your business. Our goal is to install and maintain your HVAC system that maximizes efficiency and comfort for your business


24/7 Emergency HVAC and Fire Protection Service

O'Connor Mechanical understands the importance of being on call.  When you can't afford to wait, our team is on call to provide 24 hour emergency service.

For emergency service, call 716-824-2100

Our Team

Dean O'Connor

Eric Fischer, PE

Mark Jarnot, PE

Owner and President


Mark Jarnot, PE

Eric Fischer, PE

Mark Jarnot, PE

Fire Protection and Mechanical Contracting


Eric Fischer, PE

Eric Fischer, PE

Eric Fischer, PE

Contact Us

For information

Send us a message or call us for a quote. All inquiries will be responded to within 24 hours. 

For immediate emergency service:  please call 716-824-2100

203 Fisher Rd, West Seneca, New York 14218, United States

By phone: (716) 824-2100