Europe-Places.com has listed approx 4 HVAC contractors in 6460 Altdorf. Some of the Top rated HVAC contractors in 6460 Altdorf are- Walter Kempf Heizungen und San. Anlagen, Walter Kempf Heizungen und San. Anlagen, Kaminfeger Schwyz-Uri GmbH & Kaminfeger Schwyz-Uri GmbH.