Wm. J. Donovan Co. celebrated its 100th year of HVAC and specialty sheet metal services in 2013. We focus primarily on highly technical and ever-evolving industries, including pharmaceuticals, healthcare, research and higher education.

We have not only made a name for ourselves in the industry, the company has also made an impact on the community. Wm. J. Donovan Co. is a charter member of the Philadelphia Chapter of the Sheet Metal Contractors Association (SMCA) and remains active in various industry organizations, which include the Mid- Atlantic Environmental Balancing Association (MAEBA), the National Environmental Balancing Bureau (NEBB), the American Society of Heating, Refrigeration and Air Conditioning Engineers (ASHRAE) and the American Welding Society (AWS).

State-of-the-art quality, unparalleled service and a commitment to the safety of our employees and customers are the hallmark of our involvement with all projects.


To provide the highest quality products and services for our clients, to maintain the highest level of integrity throughout our operations, and to provide the opportunities to allow our employees to achieve their potential.