A seasonal HVAC maintenance checklist for NYC homes

Most of the HVAC failures we see in July could have been caught in April. Two tune-ups a year — one before cooling season, one before heating season — prevent the vast majority of breakdowns and add years to equipment life.

Spring (March–May)

• Clean condenser coils — winter grime kills efficiency
• Check refrigerant charge and pressures
• Replace filters (every 1–3 months in NYC)
• Inspect drain pans and condensate lines for clogs
• Verify thermostat calibration and schedule
• Test capacitors and contactors before peak load

Fall (September–November)

• Inspect heat exchangers for cracks (gas furnaces)
• Test ignition, flame sensor, and limit switches
• Check flue draft and CO levels
• Clean and lubricate blower motors
• Verify gas pressure and combustion analysis
• Pressure-test heat pump reversing valves

What you can do between visits

Change filters monthly during heavy use seasons. Keep 2–3 feet clear around outdoor condensers. Listen for new sounds — rattles, hums, or short-cycling are early warning signs.

A $200 tune-up that catches a failing capacitor saves a $400 emergency call in August — and a sweaty week of waiting.

We offer a bi-annual maintenance plan that covers both visits at a flat rate, with priority scheduling during heat waves.