A.N. Roth Company

With 91 reviews earning a 4.7-star average, A.N. Roth Company stands as one of the most reviewed HVAC contractors in Louisville. The company serves residential and commercial clients throughout Louisville and Southern Indiana, operating Monday through Friday from 8 AM to 4:30 PM. Founded in 1866, this makes them one of the oldest continuously operating businesses in the state, now spanning more than 150 years of service to the community.

What distinguishes A.N. Roth is their specialization in radiant heating systems and geothermal installations, both considered niche specialties in the Louisville market. They offer IQAir-designed filtration systems targeting viruses, allergens, and bacteria, positioning them for homeowners prioritizing indoor air quality. Their service menu includes specialty applications such as cigar room climate control and wine room cooling systems, areas most area contractors do not attempt. The company provides free virtual estimates, a practical option for homeowners wanting a consultation without an in-person visit.

Reviewers describe specific technician scenarios that illustrate their service approach. Kim Wadlington credited the company with a same-day emergency response during below-freezing weather, sending four technicians who completed a full furnace replacement within hours. For an Airbnb property, technician Scott rapidly diagnosed and reprogrammed a malfunctioning thermostat to restore proper heating. Multiple five-star reviewers specifically praised technicians named Josh, Tom, Richard, and Phillip for communication, pricing transparency, and professional demeanor. One reviewer noted challenges with a crawl space access situation, explaining the company declined that particular job.