Keystone Heating & AC Co Inc

Keystone Heating & AC Co Inc has kept Racine and Kenosha residents comfortable since 1918, making it one of Wisconsin's oldest continuously operating HVAC contractors. Based in Union Grove, the company holds a 4.9-star rating across 27 customer reviews, reflecting over a century of earned trust. Technicians are available around the clock, every day of the week, ensuring residents in these southeastern Wisconsin communities never face a heating or cooling emergency without support.

What distinguishes Keystone is its blend of century-old reliability and modern service flexibility. The company provides maintenance agreements that let homeowners customize scheduled service for both heating and cooling systems, paired with financing options that make equipment replacements more accessible. Their service menu spans indoor air quality solutions including humidifiers, dehumidifiers, and advanced filtration systems, along with commercial HVAC capabilities that extend beyond typical residential work.

Customer reviews highlight specific technicians who've earned praise for thorough, personable service. Brandon performed a comprehensive furnace tune-up, explaining each diagnostic step to the homeowner. Cody cleaned a condo AC system, answering every question and offering maintenance tips. For a full furnace and AC replacement, Adam and Cody completed the installation while maintaining a clean worksite, then walked the homeowners through system operation. These named experiences illustrate how Keystone's team turns routine service calls into lasting customer confidence.