Almost every expensive repair discussed on this site is preceded by a cheap task that did not get done. This is that list.
Test smoke and carbon monoxide alarms monthly. Change the HVAC filter every one to three months. Clear the gutters twice a year. Clean the dryer vent annually. Two of those are fire safety, one prevents water damage, and one prevents the most common avoidable HVAC failure. Everything below is worthwhile; these four are not optional.
Monthly
| Task | Why it matters |
|---|---|
| Test smoke and CO alarms | The single highest-value minute in this article |
| Check the HVAC filter | Restricted airflow raises bills and freezes coils |
| Run water in unused drains | Dry traps let sewer gas into the house |
| Check under sinks for damp | Slow leaks are cheap now and expensive later |
| Test GFCI outlets | Press test, then reset — they do fail |
Spring
Clear the gutters and downspouts. Water that cannot leave the roof finds another way — into fascia, walls and basements. This is the highest-value seasonal task on the list.
Inspect the roof from the ground with binoculars, and check the gutters for shed granules. What to look for is in signs your roof needs replacing.
Service the air conditioning before you need it. Clear debris from the outdoor unit, check the condensate drain, and book any service now rather than during the first heatwave when nobody is available.
Check exterior caulk and seals around windows and doors.
Inspect the foundation for new cracks, and confirm the ground slopes away from the house.
Test the sump pump by pouring water into the pit. Finding it dead in April is inconvenient; finding out during a storm is not.
Summer
Clean the dryer vent duct, not just the lint screen. Lint accumulation in the duct is a recognised fire cause, and a blocked vent makes every load take far longer.
Flush the water heater to clear sediment. Standard manufacturer advice, and among the most-skipped tasks anywhere.
Check window and door screens, and reseal any exterior wood.
Trim vegetation back from the house — branches touching the roof damage shingles and give pests a bridge.
Check the deck or patio for rot and loose fixings.
Autumn
Clear the gutters again, after the leaves have finished falling. Doing it too early means doing it twice.
Service the heating before the first cold night. Same logic as air conditioning in spring: technicians are available now and booked solid later.
Have the chimney inspected if you burn anything. Creosote accumulation is a genuine fire risk.
Drain and shut off exterior taps if you get freezing weather. A burst pipe behind a wall is among the most expensive failures on this list, and prevention takes ten minutes.
Check weatherstripping on doors and windows.
Reverse ceiling fans to push warm air down.
Winter
Watch for ice dams at roof edges. They indicate heat escaping into the attic — an insulation and ventilation problem, not a roof problem, though the roof pays for it.
Check the attic after heavy snow for damp, frost on nails, or compressed insulation.
Know where your main water shut-off is, and check the valve turns. The moment you need it is not the moment to go looking.
Keep the outdoor HVAC unit clear of snow and ice.
Two tasks are easiest to remember by tying them to a date you already notice:
Replace smoke and CO alarm batteries, and check the manufacture date printed on the unit — alarms themselves expire, typically after about ten years for smoke and rather less for CO. A ten-year-old alarm with a fresh battery is still an expired alarm, and almost nobody checks this.
Review your home insurance at the same time — coverage limits, deductibles, and whether your roof is insured at replacement cost or actual cash value. Details in does home insurance cover roof replacement.
Annually
- Have the HVAC system professionally serviced
- Inspect the roof and flashing properly
- Check the water heater's pressure relief valve
- Look over visible plumbing for corrosion — see why your water pressure dropped
- Test the electrical panel for heat or buzzing — see do you need a panel upgrade
- Reseal grout and caulk in bathrooms
- Photograph the house inside and out for insurance records
How to actually keep this up
Put it in a calendar, not a drawer. Four recurring reminders — one per season — beats any printed list.
Do the safety items first if you are starting from nothing. Alarms, dryer vent, filter.
Keep a note of what you did and when. It matters for warranty claims, for insurance, and for the next owner. A single file on your phone is enough.
Do not try to catch up all at once. One season's list at a time is how this becomes a habit rather than a project you abandon.
This is general information, not professional advice — see our disclaimer.
Frequently asked questions
What are the most important tasks?
Testing smoke and carbon monoxide alarms, changing HVAC filters, keeping gutters clear, and clearing the dryer vent. Those four prevent the largest share of serious problems for the least effort.
How often should I change an HVAC filter?
Typically every one to three months depending on filter type, pets and dust. A clogged filter restricts airflow, which raises running costs and is a common cause of a frozen coil.
Does the water heater really need flushing?
Sediment accumulates in tank heaters and reduces both efficiency and capacity. An annual flush is standard manufacturer advice and is among the most-skipped tasks on any list.
Why does the dryer vent matter so much?
Lint accumulation in the duct is a recognised fire cause, and a blocked vent also makes the dryer run far longer than it should. It deserves more attention than it gets.
What if I have never done any of this?
Start with the safety items — alarms, dryer vent, HVAC filter — then work through one season's list. Catching up matters more than perfect timing.
Sources
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