Keystone HVAC Services LLC

Keystone HVAC Services LLC has kept homes comfortable in Keystone Heights, Florida for 12 years as a family-owned operation. With a perfect 5-star rating across 114 reviews and more than 200 satisfied customers, this contractor fields emergency calls around the clock, every day of the week. The team resolves heating, cooling, refrigeration, and general HVAC needs for homeowners across Clay County, including Palatka and Starke neighbors who seek dependable local service beyond Keystone Heights proper.

What distinguishes this contractor is their willingness to tackle equipment that larger companies refuse. Reviews confirm expertise with R32 refrigerant systems, a specialized charge used in newer mini splits that many technicians cannot service or refill. The crew also handles Mr Cool DIY mini split installations that other contractors turn away, offering professional setup and troubleshooting for equipment homeowners purchased independently. Emergency response adds another layer of reliability: the team answers at 5 a.m. on the coldest night of the year and dispatches a technician within two hours.

Customers consistently name Daniel as the technician who arrives when it matters most. One reviewer called at dawn during a brutal cold snap, and Daniel reached the home within two hours to replace a failed thermostat. Another homeowner needed two new mini splits installed; Daniel completed the work with precision and left the space immaculate. When an R32 unit lost refrigerant and stopped producing heat, Daniel diagnosed the issue from a photo, confirmed the low charge during a same-day visit, and returned the next morning to refill it. The unit has run perfectly since.