HVAC Services in Madison, WI

Trusted Heating, Cooling and Indoor Air Quality Solutions in Madison, WI

Looking for trustworthy HVAC service in Madison? Hillestad Heating and Cooling Systems brings over 30 years of experience to homeowners and businesses across the greater Madison area. From furnace repairs in the winter to air conditioning upgrades in the summer, our team delivers high-quality and personalized service.

HVAC Services We Offer in Madison

Whether you’re near the Capitol, Dane County Regional Airport, West Towne Mall or out in the suburbs, Hillestad Heating and Cooling has the tools, techs and training to service all of your HVAC needs. Our services include:

Heating Services

• Furnace repair, replacement and installation

• Boiler service and maintenance

• Seasonal tune-ups

• Emergency heating repairs

Cooling Services

• A/C repair, maintenance and installation

• Ductless mini-split systems

• High-efficiency system upgrades

• Central air troubleshooting

Indoor Air Quality

• Whole-home air purification

• Humidifiers and dehumidifiers

• Ventilation solutions

• Filter replacement and upgrades

Commercial HVAC and Refrigeration

• Rooftop units and packaged systems

• Walk-in cooler and freezer service

• Boiler systems and gas piping

• Custom maintenance agreements

We service all major brands, and we’ll always provide honest recommendations tailored to your home or business.

Why Madison Homeowners and Businesses Trust Hillestad

Back in 1988, Hillestad was five hardworking HVAC pros in a garage, united by one mission: to offer better heating service with a personal touch. Decades later, that mission hasn’t changed.

Here’s why customers across southern Wisconsin continue to choose Hillestad Heating:

• Local and Family-Rooted: Proudly located in Lodi and supporting our surrounding communities since 1988.

• Experienced Technicians: Skilled, certified and constantly trained.

• Prompt and Professional: We show up on time and do it right the first time.

• Energy-Efficient Solutions: We’ll help you save money and stay warm.

• Clear and Honest Quotes: No pushy upsell. No surprises.