The Maintenance Tasks New Homeowners Most Commonly Overlook

Lint that escapes the trap accumulates inside the dryer duct over time, restricting airflow and creating a genuine fire hazard. The U.S. Fire Administration has identified dryer fires as a significant cause of residential fires, with failure to clean the vent cited as a leading factor.

Most homeowners clean the lint screen after every load — which is correct — but never clean the duct that runs behind the dryer and exhausts through the wall or roof. This duct should be cleared at least once a year, or more often if you run large loads frequently. A flexible brush kit designed for dryer ducts makes the job manageable without professional help in most standard installations.

Every homeowner should know where the main water shut-off valve is and confirm it actually works before a pipe bursts or a fixture fails. Many new owners discover during an emergency that their shut-off valve is corroded, seized, or in an unexpected location — situations that delay response time and worsen water damage significantly.

Walk your property and identify the main shut-off (often near the water meter or where the supply line enters the foundation), as well as individual shut-offs under sinks, behind toilets, and near appliances. Turn each one slowly to confirm it moves. If a valve is stiff or won't budge, have a licensed plumber assess it — forcing a corroded valve can cause it to fail. For more on proactive plumbing habits, see plumbing upkeep that doesn't require a wrench.

Sediment — primarily minerals from hard water — accumulates at the bottom of traditional tank water heaters over time. This buildup reduces heating efficiency, can cause rumbling or popping sounds, and shortens the unit's lifespan if left unaddressed. Flushing the tank annually removes this sediment before it becomes a problem.

The process involves connecting a hose to the drain valve and letting water run until it clears, but the specifics vary by unit and water chemistry. If your heater is older or hasn't been flushed in years, consult the manufacturer's guidance or a plumber before attempting it, as disturbing long-settled sediment can occasionally cause valve issues. Tankless units have different maintenance demands — our comparison of tankless vs. traditional water heater maintenance covers both.

Most homeowners understand gutters need clearing after fall leaf drop, but fewer inspect them for sagging, separated joints, or improper pitch — all of which can cause water to pool or drain toward the foundation instead of away from it. Clogged or misdirected gutters are a leading cause of basement water intrusion and fascia rot.

Plan to clear and flush gutters at least twice a year — once in late fall after leaves drop, and again in spring after pollen and debris accumulate. While clearing debris, look for rust spots, visible daylight between sections, and whether downspouts extend at least four to six feet from the foundation. Our detailed guide on keeping gutters functional covers what a thorough inspection actually involves.

New homeowners often assume detectors left by previous owners are functional — but batteries deplete, sensors age out, and units have defined expiration dates that most people don't know to check. Smoke detectors are generally recommended for replacement every 10 years; carbon monoxide (CO) detectors typically have a shorter service life of five to seven years, depending on the manufacturer.

Test every detector in the home using its test button monthly, and replace batteries at least annually (or use sealed long-life batteries). Note the manufacture date printed on the back — this is your reference for replacement timing, not the install date. For placement rules and testing intervals, our reference on smoke detectors, CO alarms, and fire extinguishers is a useful quick-reference.

Changing the air filter is one of the most-cited maintenance tasks, yet research from HVAC industry groups consistently finds that a large share of homeowners go well beyond recommended intervals — or use filters with ratings incompatible with their system. A filter that's too restrictive for a given blower can reduce airflow and strain components as much as a clogged one.

Check your system manual for the recommended filter type and replacement interval, which typically ranges from one to three months depending on filter type and household conditions (pets, allergies, construction dust). Also walk through your home and confirm that supply and return vents are unobstructed — furniture, rugs, and drapes placed over vents force the system to work harder. Our article on HVAC filters, vents, and airflow covers the broader picture of what new owners routinely get wrong.

Caulk around windows, doors, tubs, and plumbing penetrations degrades over time — cracking, shrinking, or pulling away from surfaces. Failed caulk is an entry point for air infiltration (which raises heating and cooling costs), moisture (which can cause mold and wood rot), and in some locations, pests. Weatherstripping around exterior doors faces similar wear from repeated use and seasonal temperature swings.

Walk around the exterior of your home each spring and fall looking for gaps, cracks, or discoloration in caulking. Inside, check bathroom and kitchen caulk lines where tile meets the tub surround or countertop. Recaulking is a low-cost DIY task, but it must be done cleanly — old caulk should be fully removed before new material is applied, or adhesion will fail quickly. This is also a productive item to address during a fall home prep walkthrough.