Plumbing • Mechanical • HVAC

Whether it’s cheese factories, retail businesses, new construction apartments, municipal wastewater plants, restaurants, or industrial complex, you can depend on Molitor Plumbing, Mechanical, and HVAC. We've provided over 28 years of certified, licensed service to the tri-state area of Illinois, Wisconsin and Iowa.

Avoid costly downtime or disruptions with our affordable planned preventative maintenance program, tailored to your company’s specific needs. Our commercial plumbing technicians are trained to provide quality professional service regardless of project size.

We understand the need for prompt emergency service on a 24/7 basis for our commercial clients. We’re only a call away at 815-745-2613.


  • Design/Build
  • Boiler installation & planned maintenance.
  • Municipal water treatment plants – installation / repair.
  • Potable water pipes, drains, fixtures and valves – installation / repair.
  • Ductless splits.
  • New construction projects.
  • Tear-outs, re-builds and facility expansions from design to completion.
  • Remodeling bathrooms, lunchroom, utility sinks and custom bids.
  • Sewer, water main installation / maintenance.
  • Heating & cooling repair / installation.
  • Geo-thermal and radiant heat systems.
  • Specializing in service to food processing factories and dairy facilities.