Randerson Heating & Air Conditioning
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About Randerson Heating & Air Conditioning
Randerson Heating & Air Conditioning maintains a 4.9-star rating across 28 verified reviews in Seymour, Wisconsin, serving the broader Northeast Wisconsin region including Clintonville, De Pere, and Kimberly. This 24/7 heating contractor handles everything from furnace and air conditioning installation to routine maintenance and emergency repairs, offering both traditional ducted systems and ductless mini-split solutions for residential and commercial clients.
What distinguishes Randerson from other regional contractors is their dual brand partnership with both Carrier and Tempstar, giving customers options across price points without sacrificing manufacturer support. Their service menu includes specialized offerings rarely found in rural Wisconsin: infrared heating systems, in-floor radiant heating, and gas boilers for customers seeking alternatives to conventional forced-air systems. The company also holds the Readers' Choice Award for Best of the Valley, a distinction voted on by local community members.
Reviewers consistently highlight specific technicians who went above and beyond. When one customer's furnace inducer motor failed on a frigid Friday evening and every other shop had closed, Randerson answered at 7pm, located the rare part, and waited in their van for the customer to arrive from 30 minutes away. Another reviewer praised the installation crew as the cleanest workers they have ever had in their home, while a third mentioned their technician Tyler by name for keeping both boiler and AC systems running optimally with prompt, fairly priced service.
What Customers Say
Twenty-eight reviewers award Randerson a near-perfect 4.9 stars, with emergency response a recurring theme. Four reviewers specifically describe same-day or after-hours service, including one who called at 7pm on a Friday and received the exact part within an hour. Technicians named in reviews include Tyler and the team member who waited in a van to deliver a furnace part.
Working Hours
| SundayToday | Open 24 hours |
| Monday | Open 24 hours |
| Tuesday | Open 24 hours |
| Wednesday | Open 24 hours |
| Thursday | Open 24 hours |
| Friday | Open 24 hours |
| Saturday | Open 24 hours |
Services
Furnace Installation & Repair
New furnace installation, repairs, and inducer motor replacement for all major brands including Carrier and Tempstar systems.
Air Conditioning Installation & Repair
AC installation, tune-ups, and repairs to keep homes cool during Wisconsin summers with same-day maintenance available.
Ductless Mini-Split Systems
Ductless heating and cooling for home additions, garages, or customers seeking zoned temperature control without ductwork.
Gas Boiler Service
Installation and maintenance of gas boilers as an alternative heating solution for residential and commercial properties.
In-Floor & Infrared Heating
Radiant floor heating and infrared heating systems for customers wanting whole-home heat without forced-air equipment.
Air Quality Solutions
Whole-house humidifiers, dehumidifiers, and AprilAire products to improve indoor air health year-round.
24/7 Emergency Service
Round-the-clock emergency response for heating and cooling failures, including holiday and weekend coverage.