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Madison WI BETHKE Heating & Air Conditioning

The brands we sell

We sell a variety of brands so we can offer you a broad selection of options.

We select brands based on three criteria:

  • Quality and reliability
  • How well the manufacturer stands behind its product
  • Availability of replacement parts


Carrier is a full service line that includes furnaces, air conditioners, heat pumps, thermostats, air filters, and humidification systems. Willis Carrier was the inventor of modern central air conditioning way back in 1902, and the Carrier Company has been the leader in the furnace and air conditioning industry for almost 100 years.

We are proud that we've been a Carrier dealer since 1989. Carrier makes excellent equipment. We are one of the largest dealers in the area, and we have a long and valued relationship with our local distributor.


Armstrong is also a full product line company that makes excellent equipment. Armstrong is owned by Lennox International but operates as a separate entity.

As an Armstrong dealer since 1995, we enjoy an outstanding relationship with our local distributor, and we are impressed by this company's consistent dedication to customer satisfaction. We are the largest Armstrong dealer in the Madison area and one of the largest in Wisconsin.


Buderus is the world's largest boiler manufacturer. Based in Germany, the company also has American plants. Our supplier is located in Milwaukee, and parts availability has always been first-rate. We really appreciate this line's careful attention to quality details and reliability. We have found that Buderus stands behind its product better than any other boiler company we know.


Williamson hot water boilers are manufactured in Milwaukee. They are comparable to other American boiler lines, but are more competitively priced.


Dunkirk is another American boiler company we use. We especially like their steam boilers.


Mitsubishi makes split-ductless air conditioners and heat pumps that are extremely efficient and quiet. We are one of a select few "Diamond Dealers" in the Madison area, recognized for our specialized training and high level of experience with the Mitsubishi line. Diamond Dealer status allows us to offer a longer warranty than other dealers.


Aprilaire's excellent humidifiers and air filters are manufactured right here in Madison by hometown company Research Products. We are pleased to "buy local," and we like the fact that replacement filters and water panels are readily available.


While Thermastor dehumidifiers just happen to be manufactured in Madison, they are used worldwide by flood damage remediation companies. Cheap big box store models cannot begin to compare to Thermastor dehumidifiers. Thermastor products have greater capacity, as well as superior energy efficiency and durability.


Renewaire is another Madison company we are proud to work with. They make the best air-to-air heat exchangers on the market.

For more information about the brands we sell, contact BETHKE Heating & Air Conditioning today!