Knox Mechanical - Heating and Cooling Contractor

More Than 38 Years of Experience Serving the Chicago Region

Knox Mechanical of Oak Lawn, IL has been your source for reliable HVAC contractor services since 1973. We install and repair all makes and models of air conditioners, furnaces, and boilers. We also sell and install top-of-the-line Trane air conditioning systems.

24 Hour Emergency Service When you need immediate help with an air conditioning or heating problem we're available 24 hours a day. We guarantee all of our work and offer the best warranties in the business.

Air Conditioning Contractor Services

  • Air Conditioning Units – Trane air conditioner service includes new unit sales, new construction installation, and replacement units, as well as air conditioning repair and maintenance for all makes and models.
  • Heating Contractor Services

  • Furnaces And Boilers – Trane furnace and boiler service including new furnace and boiler sales, furnace and boiler repair and installation, furnace and boiler repair for all makes and models, water heater installation and repair.

Experienced HVAC Service

We protect your home by using only highly trained technicians. In addition, our company is fully licensed, bonded and insured. Our track record of good service is over 35 years long. Our references will be happy to confirm that. Feel free to ask for them – we always present them upon request.

HVAC Contractor Service Locations

We are located in Oak Lawn, IL and service Evergreen Park, IL and other parts of the Chicago surrounding area.

Contact Knox Mechanical today at 708-425-0993 to request reliable heating contractor and air conditioning contractor services, or browse the website for more information about our products and services.

We Sell & Install Top-Of-The-Line  Trane Heating & Cooling Units


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