Heating & AC Repair and Installation Services

Heating & A.C.

The Finest in Commercial and Residential HVAC Repair, Installation & Emergency Service in St. Charles

Known throughout the Fox Valley region for our top-notch heating and cooling services, Mendel’s goal is to help your family or business obtain the safest and most comfortable air quality. Our professionally trained and certified team uses its up-to-date knowledge of technology to provide the best solutions for your home or office.

What’s more, we offer preventive maintenance programs to keep your furnace and air conditioning system at original manufacturer specifications, while reducing your monthly energy costs. We’d love to help you with your furnace and air conditioner repair and service needs. Whether you need a simple checkup or a complete system overhaul, Mendel is your best resource.

Free Heating & Air Conditioning System Estimates

Installing new equipment is just one of the ways our team of experienced professionals delivers The Mendel Experience. New system customers tell us — again and again — how extremely satisfied they are. And it all starts with our FREE heating and air conditioning system estimates. From emergency situations to budget planning purposes, contact Mendel anytime for a free estimate on replacing your aged equipment or upgrading to the latest high-efficiency energy-saving systems that can have significant ROI paybacks that help recoup your purchase price.

Mendel’s Heating & A.C. Services

From furnace maintenance to in-floor or in-ground heating installation, Mendel’s mechanical technicians help you with any commercial or residential heating or cooling project! As a Bryant® Factory Authorized Dealer committed to the safest, most reliable products, we offer the following services:

  • Complete furnace Repair/Installation
  • Complete Air Conditioner Repair/installation
  • Natural Gas Line Piping
  • Refrigerant Replacement or Recharge
  • Energy Savings Program
  • Seasonal Precision Equipment Tune-ups

Plus, we offer a full line of products and fixtures and can install, repair and replace:

  • Furnaces
  • Air Conditioning Units
  • Boilers
  • Duct Sealing
  • Air Purifiers and Filtration Systems
  • Ultraviolet Germicidal Light
  • Humidifiers and Dehumidifiers
  • In-Floor Heating Systems
  • Electric and Baseboard Heating
  • Carbon Monoxide Detectors
  • Fans and Power Ventilators
  • Chimney Liners and Caps
  • Indoor Air Quality Products

Benefits of Mendel’s Heating & Air Conditioning Service

  • Your satisfaction is guaranteed
  • Available to residential and commercial customers
  • Guidance and assistance in applying for all available rebates and federal tax credits
  • Clear and complete explanation of all product features, benefits and pricing
  • Energy calculations for expected monthly utility savings on new, high-efficiency systems
  • Analysis and inspection of existing equipment and ductwork to identify potential hidden problems prior to estimate
  • Certified, factory-trained technicians
  • Preventive Maintenance Program benefits
  • Mendel flat-rate pricing provides accurate estimates for all repairs and projects
  • Service is available 24/7/365
  • The Mendel Warranty on any repairs — at Mendel, we stand behind our work



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