Gear up for the long Lake Geneva winter with heating installation, repair and maintenance services from Master Services. Our cold, harsh winters call for the best and most efficient heating systems. We proudly service all makes and models of heaters, and we stock an assortment of the best brands available should you require a full-system replacement. Find repair, service and installation for forced air furnaces, boilers, heat pumps, gas logs, hybrid fuel systems and ductless mini-splits. Ensure comfort in the coldest months with complete professional heating services from Master Services.