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Free Maintenance

Last updated October 15, 2026.

Free home maintenance checklists — see what your manual asks for between pro visits.

Choose the equipment.

• Central air
• Heat pump
• Furnace
• Boiler
• Water heater or tankless
• Mini-split
• Geothermal or water-source
• Side-discharge
• Thermostat

All answers · Start the guided check

Independent information, not an inspection or a confirmed diagnosis. Not attorney-reviewed and not a licensed HVAC review. support@secondwrench.co