Heating - Repair - Sales In Wisconsin we can be sure the winter will be cold. At Bethke Heating & Air Conditioning we also realize the amount of use the average home heating system receives this time of year. Since 1989 Bethke has provided service, repair and maintenance for our customer's furnaces, heat pumps, radiant floor heating and boiler systems in the greater Madison area. We provide pre-season preventative maintenance for ALL manufacturers furnaces. We will be glad to set an appointment to visit your home or office and inspect your heating system to insure its reliability during the cold Wisconsin winter months. Comfort Patrol to the Rescue! We service ALL Brands 24 Hour Emergency Service Prompt Professional Service Free estimates (on all new installs) Air Duct Cleaning