Month by month

Adjust timing for the year. Early or late freezes move the fall and spring items.

January
Watch north eaves for ice buildup after snow. Check the mechanical room for humidifier or condensate drips.
February
During deep cold, open sink cabinets on exterior walls at night and keep the thermostat steady.
March
Heavy, wet spring snow is common. Clear snow away from window wells and the foundation as it melts.
April
Look for interior stains that appeared over winter. Test sump pumps if the house has one.
May
Restart irrigation slowly with someone watching the basement near the tap. Reconnect hoses.
June
Check AC condensate drains and pumps as cooling begins. Inspect washing machine hoses.
July
Afternoon storms bring short, intense rain and hail. Clean gutters and confirm downspout extensions are attached.
August
Look at sprinkler spray near the foundation and adjust heads pointing at walls or window wells.
September
Replace the humidifier pad and test the condensate trap before heating season.
October
Schedule the sprinkler blowout before the first hard freeze. Disconnect hoses and drain hose bibs.
November
Confirm the indoor irrigation valve is closed and drained. Check attic insulation over vaulted rooms.
December
Before holiday travel, run the pre-trip shutdown routine and set the thermostat no lower than the mid-50s.

Local weather patterns behind the calendar

Elevation
A little over a mile high, with strong sun and dry air for most of the year
Freeze-thaw cycles
Frequent in fall, winter and spring; sunny days often follow cold nights
Spring snow
March and April storms can be heavy and wet
Summer storms
Short, intense afternoon thunderstorms with hail are common

Why seasonal timing beats a single annual check

A once-a-year inspection misses the problems that only appear under specific conditions. Ice dams only form after snow and sun. A frozen irrigation tap only leaks after startup. A clogged condensate line only overflows when the AC or a high-efficiency furnace is running. Spreading the checks through the year means each one is done when its failure is actually possible.

Most of these items take a few minutes. Set phone reminders for the start of each month and keep notes on what you found, which also helps when an insurer asks how a home was maintained.

General information for Highlands Ranch, not a quote or professional advice. In an emergency, call 911.