Hillestad Heating & Cooling Systems

Business Details

38 Years

experience

Emergency

services

Trusted HVAC Services in Lodi, WI

Hillestad Heating & Cooling Systems has served Wisconsin homes and businesses since 1988, built on a foundation of hard work and trust. Starting with five HVAC professionals operating from a garage, the company has grown into a trusted leader in heating, cooling, and indoor air quality services. Our team specializes in residential and light commercial HVAC solutions, offering installation, repair, and maintenance for all major brands.

Certified technicians deliver energy-efficient systems and prioritize customer satisfaction through prompt, professional service. With decades of local experience, we maintain a commitment to craftsmanship and community, serving areas between Stoughton and Wisconsin Dells.

Services

Furnace Repair Air Conditioning Installation Boiler Services Ductless Systems Indoor Air Quality Commercial HVAC Emergency Repairs Routine Maintenance

Details

Year established: 1988

Highlights and features

We offer 24/7 emergency service with same-day appointments available.
Our technicians service all HVAC makes and models without bias.
Certified professionals prioritize energy-efficient, long-term solutions.
Factory-authorized dealer for Bryant and Rheem product expertise.
Locally rooted with over 30 years of Wisconsin-specific HVAC experience.

What people say

Fast response times Professional technicians Affordable repairs Energy-efficient solutions Reliable service

Website

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Services

Furnace Repair

Our certified technicians provide fast diagnostics and repairs for all furnace types, ensuring reliable heat restoration. We service all brands and prioritize energy-efficient solutions to prevent future breakdowns. With 30+ years of experience, we deliver transparent pricing and same-day service for urgent heating needs in residential and commercial settings.

Air Conditioning Installation

We install energy-efficient air conditioning systems tailored to your property's size and layout. Our team specializes in modern, high-efficiency units and ductless mini-split systems for homes without existing ductwork. Factory-trained technicians ensure proper installation, maximizing performance and longevity while minimizing energy costs for Wisconsin summers.

Indoor Air Quality

Hillestad offers Aprilaire whole-home air quality solutions to reduce allergens, mold, and pollutants. Our systems include humidifiers, dehumidifiers, and HEPA filters that integrate with existing HVAC equipment. These solutions improve respiratory health, protect HVAC systems, and maintain comfortable humidity levels year-round for both residential and commercial clients.

Commercial HVAC

We provide comprehensive heating, cooling, and refrigeration services for commercial properties, including restaurants, hotels, and retail spaces. Our licensed technicians handle new installations, emergency repairs, and preventive maintenance for rooftop units, boilers, and specialized equipment. Custom energy-efficient solutions help businesses reduce operational costs while maintaining code compliance.

Emergency Repairs

Hillestad offers 24-hour emergency HVAC service for urgent heating and cooling failures. Our on-call technicians respond promptly to residential and commercial emergencies, providing immediate diagnostics and repairs. With same-day availability and no overtime charges, we ensure critical systems are restored quickly during extreme weather conditions.

Questions

What HVAC services do you offer?

We provide furnace repair, air conditioning installation, boiler services, ductless systems, indoor air quality solutions, and commercial HVAC services.

Do you offer emergency HVAC service?

Yes, we provide 24/7 emergency service with no overtime charges for urgent heating and cooling repairs.

Which areas do you serve?

We serve Lodi, Baraboo, Sauk City, Madison, Portage, Wisconsin Dells, and surrounding areas in south-central Wisconsin.

Are financing options available?

Yes, we offer financing options for HVAC installations and major repairs to qualified customers.

What brands do you service?

We service all major HVAC brands and are factory-authorized dealers for Bryant and Rheem products.

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Reviews (7)

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Cody Endres

Nov 26, 2021 Report

We had several different issues going on at our rental unit and called several other contractors to come out and help us fix our water tank and heat issues. Every other contractor failed and left our home without a working heating system. When we reached out to Hillestad's they diagnosed the problem right away and sent a team back the next morning to get both our heat and water tank back up and working properly. I'll never call another HVAC service again. I highly recommend them.

Laurel Lawrence

Nov 25, 2021 Report

We worked with Dan to give us a quote for a split system to be installed in our cabin. We received a quote within a week and were able to schedule an install shortly afterwards. Crew that came to install was professional and quick. We also reached out to Dan after install to get a few questions answered, which he was quick to respond to. I wish all contractors were this professional and responsive. We will be returning to Hillestad for our future business.

Mike Solt

Jun 23, 2021 Report

Very friendly, prompt, and knowledgeable. Trustworthy to where for my specific situation it would be cheaper to use a different company, and they told me that. That's the type of company I want to do business with! Will definitely use them for future needs. Above and beyond my expectations.

Batenga Obuseh

Mar 25, 2021 Report

I wish I could remember my technicians name but he was awesome!! 3/15/21, We were referred by Ron to get help with our thermostat. A tech arrived with less than four hours notice to assist us in Fitchburg WI. In the midst of the job, he noticed a potentially very dangerous situation. Our furnace tubes were so badly corroded and water from old rusted and broken tubes was filling up near electrical lines. So even though there was a hazardous snow storm, he drove across town from Fitchburg to McFarland WI to purchase some missing pieces. Then he returned in record time to help fix our dilapidated

Dave Hinkel

Nov 14, 2020 Report

We had an opportunity to convert from LP to natural gas and decided to replace our 20+ year old furnace and AC along with our water heater. Hillestad came in with the best bid to do the complete job. They arrived promptly on the date and time agreed upon. The installation went smoothly. We went with the Ecobee thermostat as an upgrade and a tech explained how to operate this device. (Love it!) We had used Hillestad for a couple of repairs in the past and received equally as good service. We highly recommend them over the other local HVAC contractors.

Steve Hill

Oct 02, 2020 Report

Just wanted to send you a note to say how great Shawn and Ryan were at installing our new 2-stage Bryant furnace. They did a great job with the install as well as explaining the 2-stage function being controlled at the furnace level so that we wouldnt have to figure out how to run it at the thermostat. Both were cordial and professional, and knew what they were doing every step of the way. Excellent work, which is of course what I have come to expect over the years from Hillestad. Thank you, and have a great year.

Tony Kieffer

Sep 14, 2020 Report

Positive:Professionalism,Punctuality,Quality,Responsiveness,Value
My furnace stopped working. I called Hillestad Heating & Cooling. A tech came out and fixed it right away. Great service and the people in the office are very nice and friendly. Thank you again for great the service!
Service:Heating system repair