South Florida property owners should prepare HVAC systems for hurricane season by (1) scheduling a pre-season tune-up before June 1, (2) elevating outdoor condensers above flood line where possible, (3) installing hurricane-rated tie-down straps, (4) photographing the system for insurance, (5) cutting power at the disconnect before the storm hits, and (6) waiting for a licensed technician to inspect before restart. Skipping the post-storm inspection is the most common — and most expensive — mistake.
Why this matters in South Florida specifically
The Atlantic hurricane season runs June 1 through November 30. NOAA's most recent outlook continues to forecast above-average activity for the Atlantic basin, and Miami-Dade, Broward, and Palm Beach counties sit squarely in the most-impacted corridor. For HVAC equipment, the four threats during a storm are wind-driven debris, salt-water intrusion, sustained power loss, and post-restoration voltage spikes — and any one of them can turn a healthy system into a $4,000–$15,000 replacement.
The 9-step pre-season checklist
- Schedule a pre-season inspection by May 31. Refrigerant charge, electrical connections, capacitor health, contactor pitting, blower amp draw, and condensate drainage all degrade silently between storms. A 60-minute inspection identifies the failure points hurricane stress will exploit first.
- Elevate exterior condensers above the property's known flood line. For coastal and low-elevation properties, install on a hurricane-rated equipment pad or a code-compliant elevated stand. This is also a FEMA mitigation eligibility item.
- Install code-compliant hurricane straps. Florida Building Code (FBC) requires positive anchorage of mechanical equipment in HVHZ counties (Miami-Dade and Broward). Verify your installation meets current FBC HVAC chapter requirements — older units installed before HVHZ updates often don't.
- Service or replace surge protection. Whole-house and dedicated HVAC surge protectors lose joule capacity over time; replace if older than 5 years. Power restoration after a storm is when most HVAC electrical components actually die.
- Document the system for insurance. Take dated photos of the condenser, indoor air handler, model and serial plates, and the disconnect. Cloud-store them. Attach the most recent inspection report.
- Stock filters, condensate tablets, and a battery-backed thermostat. Filters keep blowers from overworking when the grid is unstable; condensate tablets keep drain pans clear when humidity spikes after a storm; a battery-backed smart thermostat lets you remotely confirm the system is online.
- Identify your mechanical disconnect and know how to use it. When a tropical storm watch is issued for your area, cut power at the disconnect before the wind arrives. Restoring HVAC equipment that took on water under load is how most post-storm compressor failures happen.
- For multi-family and commercial properties, brief your facility/maintenance team. Roof-mounted RTUs and split systems on commercial roofs need their own pre-storm checklist — secure access panels, confirm strap inspection, brief the team on shutdown order.
- For institutional facilities (schools, healthcare, government), confirm your mechanical contractor's storm response SLA. Post-storm inspection priority is typically allocated by contract — if you don't have one, you wait in line behind those who do.
Post-storm: what to do before restarting your system
Do not restore power to HVAC equipment that may have been submerged, struck by debris, or run during a brownout. The restart sequence:
- Wait for utility power to fully stabilize (avoid restarts during rolling brownouts)
- Visually inspect the condenser, lineset, disconnect, and air handler for damage
- Photograph any damage immediately for insurance
- Have a licensed Florida HVAC contractor inspect electrical components, refrigerant pressures, and capacitor health before re-energizing
- For commercial facilities, document the inspection in writing — your insurance carrier will ask
What homeowner's insurance typically covers (and what it doesn't)
Most Florida HO-3 policies cover sudden hurricane-related HVAC damage but exclude flood damage (covered separately under NFIP) and exclude damage caused by deferred maintenance. Documentation of pre-season inspection and post-storm professional restart is the single most valuable line in a successful claim.
The unwritten rule: establish a service relationship with your HVAC contractor before hurricane season — not during. Contracted clients get prioritized post-storm. Walk-ins get the schedule that's left.