For All Your Heating & Cooling Needs in Delavan, WI



Karsten Heating & Cooling provides residential heating and air conditioning services for our neighbors in Delavan, Wisconsin, and the surrounding areas. Our services include new installations, repairs, and servicing for a wide variety of heating and cooling products. We are a registered dealer for Rheem and Tempstar and also provide free estimates, state energy discounts, and Rheem cashback discounts to our customers. We pride ourselves on providing quality customer service with efficient, reliable, and trusted help you can count on. Our trained and qualified staff works with you to ensure you are getting the care you need for any job. Call us today at (262) 728-3658.

About Us

Karsten Heating & Cooling was founded in 1961 by our current owner’s father. We have been at our current location from the very beginning and are proud to be a family-owned and operated business. Our customers know us for our outstanding service, experience, reliability, and competitive pricing. We are happy to say we are well-known in our area for our quality of work and professionalism!

Heating and Cooling Meter — Delevan, WI — Karsten Heating & Cooling

We Are Certified To Serve You!

Along with being fully licensed, bonded, and insured, Karsten Heating & Cooling to proud to be certified experts in the industry.


  • Certified Tempstar Dealer & Top Heating and Cooling Tech
  • Refrigerant Handling Technician Certification through the State of Wisconsin
  • R-410A Technician Certification
  • Certified Rheem Dealer & Rheem Top Heating Technician
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