Connect with Top-Rated HVAC Contractors in Fond du Lac!

Fondy Heating is dedicated to providing the best possible solution for your home or business. As a family-owned and operated business since 1999, we offer a wide range of residential heating and air conditioning products and services, including installation, replacement, repair, and maintenance. Our team of trained technicians is equipped to handle all makes and models of equipment, and we also provide indoor air quality specialists, sheet metal fabrication, and plumbing products and services. We pride ourselves on our commitment to customer satisfaction and our ability to provide emergency service 24/7.

Since 1947, Sure-Fire Inc. has been Wisconsin's preferred heating and cooling contractor, providing top-notch HVAC installation, repair, and maintenance services to residential and commercial clients. With over 75 years of experience, our team of expert technicians offers personalized solutions tailored to your unique needs, ensuring your home or business remains comfortable and safe all year round. From furnace replacement to central AC installation, HVAC repair, and maintenance plans, we've got you covered. Our commitment to excellence, timely service, and customer satisfaction has earned us a stellar reputation across Wisconsin. Trust us to keep what's important comfortable!