Professional Heating Services in Lodi, WI

Keep Your Home Comfortable

When Wisconsin winters hit hard, Hillestad Heating and Cooling Systems is here to keep your home warm, safe and energy-efficient. From routine maintenance and emergency repairs to full furnace or boiler replacements, our skilled team delivers reliable, people-first HVAC service you can count on.

We proudly serve homeowners and small businesses from Stoughton to Wisconsin Dells. Fast, friendly and experienced heating service has been the heart of our business since 1988.

Our Heating Services

Whether your furnace is acting up, your boiler needs an upgrade or you’re just due for seasonal maintenance, Hillestad has you covered.

We specialize in:

• Furnace Repair: Fast diagnostics and repairs to restore your heat ASAP.

• Furnace Installation: Energy-efficient systems installed with precision.

• Furnace Maintenance: Tune-ups that save energy and prevent breakdowns.

• Boiler Services: Repair, replacement and maintenance of modern and older boiler systems.

We work with all major brands and systems—delivering honest recommendations, transparent pricing and dependable work with every job.

Why Lodi Homeowners Trust Hillestad

Back in 1988, Hillestad was five hardworking HVAC pros in a garage, united by one mission: 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 serving Lodi and 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.