Precision Mechanical Services is an Industrial / commercial mechanical company that provides service to major pharmaceutical, industrial, educational and institutional organizations in the Philadelphia region. We specialize in HVAC, Process Piping, Refrigeration, Heating, Controls and many other areas covered in detail on this site. We are a full service union contractor committed to our clients and our employees. We adhere to all industry standards. All employees, including the owners, are union trained, and OSHA certified. As an organization, teamwork, honesty and safety are non-negotiable standards on every project. Our purpose is to build long term personal relationships with our clients through the application of safe, reliable, 24/7/365 service. We are committed to earning your trust not with our words but our actions. The hallmark of any worthwhile relationship is this: when troubles occur will the other party be available? With our company, the answer is yes. When your organization experiences a mechanical problem we will be there promptly and we will solve the problem with consistent, safe, professional service.