September

• Check exterior finishes for signs of deterioration (peeling paint, loose siding, cracks)
• Check garage door tracks and lubricate bearings
• Check caulking around windows and doors for air and water leaks
• Seed the lawn
• Inspect fireplace and chimney dampers, clean if necessary
• Check basement or crawl spaces for leaks or moisture 
• Have humidifier, furnace and (heat recovery ventilator) HRV serviced
• Clean and test clothes dryer vent
• Check and reset ground fault circuit interrupter (GFCI)
• Test smoke alarms and carbon monoxide detectors

October

• Check windows and screens for cracks or separations
• Drain exterior water lines
• Check roof including shingles and flashing and ensure vents are sealed properly
• Check weather stripping for damage or wear
• Check sealing around windows and doors for air or water leaks
• Test septic system and clean if necessary
• Winterize landscaping and remove leaves
• Clean or replace furnace filter
• Check and clean the heat recovery ventilator (HRV); wash or replace the filter; 
• Clean water heater
• Shut off exterior water supply
• Check eavestroughs and downspouts for debris
• Clean humidifier and check for condensation and proper humidity levels
• Check and reset ground fault circuit interrupter (GFCI)
• Test smoke alarms and carbon monoxide detectors

November

• Check attic, basement and crawl spaces for leaks or moisture 
• Inspect floor drains to ensure trap is filled with water
• Clean or replace furnace filter
• Check and clean the heat recovery ventilator (HRV); wash or replace the filter; 
• Check for condensation and humidity
• Check and reset ground fault circuit interrupter (GFCI)
• Test smoke alarms and carbon monoxide detectors