Commercial Mechanical Contractor Services In The Fox Valley Area

Commercial Services

Mendel is an Illinois DCEO Energy Trade Ally

(Public Sector)

For more information on Mendel’s Mechanical Division,

please contact us at:


Looking for a commercial contractor in St. Charles? Ready to see your operations running smoothly and seamlessly? Mendel has put together the perfect team of mechanical technicians and contractors to service commercial and industrial businesses throughout the northwest suburbs. With more than 100 years of combined experience, our team is ready to handle any service and maintenance challenges on all your mechanical systems, as well as office remodeling.

Business owners throughout the Fox Valley area rely on Mendel for fast, professional and reliable service. Whether your business operates from a single location or many, we tailor a program that meets all your plumbing, heating, air conditioning, electric and facility remodeling needs.

Let Us Help You Before You Need Us!

Call us for maintenance before a pipe burst or
you need a new air conditioner or furnace.


If you need emergency service 24/7, we are the ones to call.

A Wide Range of Commercial Mechanical Services

Whether you need design-and-build assistance, are looking to do a build-out, want ADA upgrades or need to winterize your pipes, Mendel Plumbing and Heating is at your service. Our commercial services run the gamut of plumbing, HVAC, electrical, maintenance and remodeling support. Talk to us about plumbing repairs, electrical installations, issues with your heating and cooling systems, renovations and other mechanical needs. Whatever your project, the goal our entire team is to give you the best possible service, making updates in the most convenient way possible for you.

Our Commercial Plumbing Services:

  • Commercial Remodel
  • New Construction
  • Commercial Service
  • Process Piping
  • ADA Upgrades
  • EPA Licensed Backflow Prevention
  • Design and Build Assistance
  • Camera and Jetting
  • Build Outs
  • Medical Gas Piping

Commercial Heating and Air Conditioning (HVAC) Services

  • Rooftop and Unit Heaters
  • Boilers (Steam and Water)
  • Furnace and Air Conditioning Systems
  • In-Floor Heating Systems

Commercial Electrical Services

  • Equipment and Machinery
  • Installation and Relocation
  • Telephone and Cable Lines
  • Computer and Speaker Lines
  • Interior and Exterior Lighting
  • Complete Line Generators
  • Build Outs
  • Service Upgrades
  • Complete Electrical Systems

Commercial Maintenance Services Custom Contracts

  • Preferential customer labor rate
  • Priority service
  • Clean in and around each unit
  • Filter changes
  • Belt changes
  • Lubricated fan and motor bearings
  • Check all major components, heat exchangers, burners and coils
  • Written estimate for any repair recommendations

Commercial Remodeling Services

  • Office Room Redesign and Construction
  • Walls, Doors, Windows and more
  • New Office Room Design and Build-out

Mendel is an Illinois DCEO Energy Trade Ally (Public Sector)

For more information on Mendel’s Mechanical Division,
please contact us at 630-377-3608.

Top Areas Serviced with our Plumbing, Heating & Air-Conditioning Work

Join Our Community