2231 Oak Leaf Street Joliet, IL 60436  |  PHONE: 815–744–0791  |  Office Hours: Monday–Friday, 7:00 a.m.–3:30 p.m.


C.R. Leonard Plumbing & Heating, Inc. has been trusted for more than 30 years by contractors, architects, and business owners with projects, from inception to ongoing maintenance. We continually strive to ensure a smooth, economical, and safe installation or renovation for everyone involved with the projects.

C.R. Leonard employees are licensed for plumbing in the State of Illinois, Backflow Prevention Inspection, and have certified welding certificates. We specialize in most plumbing, heating, and process piping areas of our trade.

Our company is 100% union labor and have working agreements with the Pipefitters Local 597 of Chicago, Plumbing Local 130 of Chicago, and Local 150 Operating Engineers.


Safety is the responsibility of every person involved in a project from the superintendent to foremen, and tradesmen working in the field. Through the concerted effort of all parties, safe and successful projects are always the goal. Remembering standards set by OSHA are minimal, C.R. Leonard has implemented a program and standards that at all times will exceed the level of performance expected by OSHA. Any reference to requirements that C.R. Leonard employees are to follow obligates all Contractors, Subcontractors and their employees as well.