Prepare your systems before extreme weather hits:
Before extreme heat (90°F+):
Replace air filter if over 2 weeks old
Clear debris from outdoor unit and ensure 2-foot clearance
Set programmable thermostat to pre-cool home before peak heat
Close blinds/curtains on sun-facing windows during hottest hours
Verify thermostat batteries are fresh
Schedule AC tune-up if over 6 months since last service
Before extreme cold (below 45°F):
Test heating system before cold weather arrives
Replace air filter
Check thermostat operation and batteries
Ensure vents and returns are unblocked
Reverse ceiling fans to clockwise (pushes warm air down)
Have heating tune-up if over 6 months since last service
During extreme weather:
Avoid dramatic thermostat adjustments (system works harder, not faster)
Don't turn system off to "save money" then ask it to catch up
Keep interior doors open for air circulation
Close doors to unused rooms only if they have closable vents
Emergency preparation:
Know location of circuit breakers for HVAC
Keep our service number programmed in your phone
Have backup plan if system fails (hotel, family)
Systems fail most often during extreme weather due to maximum stress. Preventive maintenance before summer/winter is essential.