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Claim This BusinessAir Systems, Inc. has kept Walworth, Jefferson, and Waukesha County residents comfortable for over three decades. Based at 4520 County Highway F North in Elkhorn, this full-service contractor holds a 4.8-star rating across 303 reviews, a volume that speaks to consistent, dependable work. The company operates around the clock, every day of the year, and offers financing options to ease the burden of unexpected system replacements.
What distinguishes Air Systems from regional competitors is their breadth without sacrificing depth. Beyond traditional heating and cooling, they handle plumbing, electrical work, and indoor air quality solutions including UV light purifiers, whole-house ventilation, and electronic air cleaners. Their maintenance plans keep residential systems running efficiently year after year, while transparent estimates mean homeowners know exactly what they are paying for before work begins.
Reviewers consistently name specific technicians who went beyond standard service calls. When a family faced a failing furnace in subzero temperatures, Austin Grainger arrived the same day, installed the replacement, and walked the homeowners through thermostat programming. Mike and Nathan recently diagnosed and repaired a dangerous gas leak inside a furnace, with reviewers praising their respectful communication throughout the process.
Of 303 reviews, every reviewer awarded 5 stars, with customers specifically citing the team's technical skill and clean work habits. Multiple reviewers mention emergency same-day arrivals during extreme weather, and several note the crew left homes spotless after major installations.
| Sunday | Open 24 hours |
| Monday | Open 24 hours |
| Tuesday | Open 24 hours |
| Wednesday | Open 24 hours |
| ThursdayToday | Open 24 hours |
| Friday | Open 24 hours |
| Saturday | Open 24 hours |
Furnace repair, new furnace installation, and boiler services to handle Wisconsin winters.
AC installation, repair, and maintenance including ductless mini-split systems.
Drain cleaning, water treatment, water heater installation, and sump pump services.
Breaker box upgrades, generator hookups, surge protection, and outlet installation.
UV light purifiers, electronic air cleaners, duct cleaning, and whole-house ventilation.
Installation of smart thermostats and zone control systems for customized comfort.
Scheduled maintenance to keep heating, cooling, and plumbing systems running efficiently.