SUB ZERO AIR

SUB ZERO AIR operates in Key Largo, Florida as a 24-hour HVAC contractor with a 5.0-star rating across 172 client reviews. The business handles residential cooling systems including central air handlers, mini splits, and heat pump equipment from all major manufacturers. Technicians provide maintenance, repair, and installation services throughout the Florida Keys, with one reviewer noting service at a Key Colony Beach property in Marathon. The company maintains continuous availability, a practical necessity for Keys homeowners facing summer heat waves.

The company differentiates itself through rapid response and preventive maintenance approaches. One reviewer described a 15-minute arrival after calling about a malfunctioning mini split, with the technician immediately diagnosing the problem. Another client documented a comprehensive air handler coil cleaning and refrigerant assessment that restored efficiency comparable to new equipment. Technicians also share maintenance guidance with clients, offering practical tips to extend system life between professional service visits.

Reviewers describe specific positive experiences with the team. A homeowner who was off-property during work received detailed process documentation, including photos of the cleaned blower wheel, with refrigerant added at no charge. Another reviewer managing a rental property praised the experienced crew's thorough approach during a townhouse system service. A Keys resident called after a fan stopped working, and the team resolved the issue while providing maintenance tips to prevent future problems.