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Call Us Today!
(262) 728-3658
Call Us Today!
(262) 728-3658


Air conditioning unit

Karsten Heating & Cooling is proud to offer a wide range of services related to heating and air conditioning. Please feel free to contact us for more information on our products, services, pricing, and to schedule an appointment for your free estimate.

Free estimates!

Products and Services

  • Air Conditioning
  • Air Purifiers
  • Furnaces
  • Humidifiers
  • New Construction
  • Remodeling
  • Residential Services
  • Boilers
  • Tempstar Furnaces
  • Hot Water Heaters
  • Repair, Service, New Installs
  • 24-Hour Emergency Service
  • High-Efficiency Units
  • Custom Ductwork Fabrication
  • Sheet Metal Work​Humidifiers
  • Air Purification
  • Hot Water Heat
  • Chimney Liners​
  • Chimney Flashing
  • Chimney Caps
  • Gas Piping


  • Refrigerant Handling Technician Certification through the State of Wisconsin
  • R-410A Technician Certification
  • Certified Rheem Dealer Rheem Top Heating Technician
  • We are a certified Tempstar dealer


We are a registered dealer for Rheem and Tempstar and also, provide free estimates, state energy discounts, and Rheem cashback discounts to our customers.


  • Rheem
  • Rheem-Ruud
  • Tempstar

Business Hours

Mon - Fri: 08:00 AM - 05:00 PM
Sat: 08:00 AM - 12:00 PM
Sun: Closed

YP Reviews

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  • Karsten Heating & Cooling

    196 Walnut St.
    Delavan, WI 53115
    Phone: (262) 728-3658