HVAC Repair Sun Prairie WI | Call Hess Heating & Cooling

A frequently extinguished pilot light is a common issue in our area, often caused by drafts, a dirty thermocouple, or gas supply problems. For your safety, it's best not to attempt repeated re-lighting. As a locally owned company serving Sun Prairie for over 40 years, we provide prompt, expert diagnosis and repair of pilot light systems. Our technicians are trained to safely address the root cause, whether it's a simple cleaning or a component replacement, to restore reliable heat to your home.

We recommend scheduling professional HVAC maintenance twice a year—once in the spring for your cooling system and once in the fall for your heating system. This routine is especially important in our climate to ensure systems run efficiently through hot summers and cold winters. Our maintenance service includes cleaning, inspection, and tuning of key components, which can help prevent unexpected breakdowns, improve energy efficiency, and extend the lifespan of your equipment.

If your system is over 15 years old, requires frequent and costly repairs, or struggles to maintain consistent temperatures, a replacement may be a wise investment. Newer, high-efficiency models offer significantly better performance and lower operating costs. As a family-owned business, we provide honest assessments and clear explanations of your options. We handle the entire installation process, ensuring your new system is correctly sized and installed for optimal comfort and efficiency in your Sun Prairie home.