St. Johns Heating and Air Conditioning

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About St. Johns Heating and Air Conditioning
St. Johns Heating and Air Conditioning has served residential and light commercial clients in St. Augustine and the surrounding St. Johns County area since establishing their presence in Northeast Florida. The company holds full state licensing for heating and air conditioning work, and maintains an A+ rating with the Better Business Bureau. Working directly with homeowners across historic Downtown St. Augustine, Vilano Beach, and the Anastasia Island corridor, the team handles everything from new system installations to emergency repairs on aging equipment. Their technicians bring factory certifications from major equipment manufacturers and participate in ongoing continuing education to staycurrent with evolving building codes and refrigerant regulations specific to Florida's coastal climate.
What distinguishes St. Johns Heating from competing contractors in the region is their methodical approach to diagnostics, particularly on systems that have confounded other service companies. Rather than defaulting to part replacement, their technicians trace root causes through systematic testing protocols, a practice that saves clients money while extending equipment lifespan. The company maintains relationships with leading equipment distributors to source hard-to-find components quickly, minimizing downtime during emergency calls. Their workmanship carries a written guarantee, and they provide detailed documentation of all repairs for warranty tracking and future maintenance planning.
Recent customer reviews highlight specific technicians who have earned repeat business from clients. Matt and Chris responded to a heating failure during a regional cold snap, sourcing a replacement blower motor overnight and completing the installation the following morning. Another client described a months-long troubleshooting process on a system that would not maintain temperature, praising the team's persistence and creative problem-solving that ultimately resolved a wiring specification issue. These named references appear consistently across reviews, suggesting a stable core team rather than high turnover typical of larger operations.
What Customers Say
All three client reviews award perfect 5-star ratings, with two explicitly naming technicians Matt and Chris as responsible for their positive experience. One client documents a complex multi-visit diagnostic challenge that required unconventional solutions, while another praises rapid response during extreme weather. Zero negative feedback appears in the available review sample.
Working Hours
| Sunday | Closed |
| MondayToday | 8 AM–4:30 PM |
| Tuesday | 8 AM–4:30 PM |
| Wednesday | 8 AM–4:30 PM |
| Thursday | 8 AM–4:30 PM |
| Friday | 8 AM–4:30 PM |
| Saturday | Closed |
Services
AC System Installation & Replacement
New residential air conditioning installation including load calculation, equipment selection, ductwork assessment, and permit coordination.
Heating Repair & Tune-Ups
Heat pump and furnace diagnostic services, heating element replacement, and seasonal maintenance to ensure reliable winter operation.
AC Repair & Emergency Service
Refrigerant leak detection, compressor replacement, capacitor swaps, and same-day emergency calls for cooling failures.
Preventive Maintenance
Biannual system inspections, filter changes, coil cleaning, and thermostat calibration to extend equipment lifespan.
Indoor Air Quality Solutions
Air filtration upgrades, UV germicidal lights, and duct assessment to improve filtration performance.
Thermostat Programming & Upgrades
Smart thermostat installation, wifi setup, and programming configuration for optimal comfort and efficiency.