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W.J. O’NEIL COMPANY

Mechanical Contracting & Service Since 1983

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WJO’S COMMITMENT

Safety First, Last and Always

At W.J. O’Neil, safety is more than a company goal; it’s a requirement. From front office managers to field employees, safety is always first. We were one of the first in the industry to establish an effective Safety Program to prevent potential hazards from occurring at the work environment.

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Building Green Setting a Higher Standard

Leadership in sustainability is more than a responsibility at WJO; it is an obligation, a privilege, and an honor to safeguard the environment, conserve energy, and strengthen the economies and social structures of communities.

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Some of our clients

W.J. O’Neil Company

Headquarters

35457 Industrial Livonia, MI 48150

734.458.2300

Service

734-266-3338

24-hour emergency service

734-266-3338

W.J. O’Neil Company

Chattanooga Office

500 West 26th Street Chattanooga, TN 37408

423-702-6000

Service

423-702-6000

24-hour emergency service

423-702-6000

W.J. O’Neil Chicago LLC

Chicago Affiliate

224 N Justine Street Chicago IL, 60607

312-470-6300

Service

312-470-6300

24-hour emergency service

312-470-6300

24/7 Service Contact