The First-Time Homeowner's Maintenance Calendar (Month by Month)

Nobody hands you a manual when you buy your first home — so small tasks ignored at the right time become expensive repairs at the wrong time.

This calendar fixes that: month by month, the short list of tasks that keeps a house healthy — most months take under two hours. Every month: check the HVAC filter, test the smoke alarms; gas, electrical, and roof work belongs to pros. This page is the companion to our own book on the same topic:

January: Deep Winter Defense

Check the HVAC filter. ENERGY STAR: check the filter every month, change it at a minimum every three months. A clogged filter raises energy costs and can damage the system.

Test smoke alarms. Press the test button on every alarm until it sounds, and note the manufacture date printed on the back of each unit.

Look under sinks for dampness or drips — cold contracts connections, so winter is when small leaks become big ones. Know where your main water shutoff is before you ever need it.

February: The Quiet Month

February is the make-up month: finish anything January didn't get, then do two checks.

Test GFCI outlets. Press "test" on every GFCI (kitchens, bathrooms, garage, outdoors, laundry), then "reset". Replace any outlet that won't trip or reset.

Peek into the attic on a cold morning: frost on the roof deck, stained insulation, or daylight where it shouldn't be are early signs of leaks — far cheaper to catch now than after spring rain.

March: Wake the House Up

Book the spring AC service before contractors get busy. ENERGY STAR recommends annual pre-season professional checkups — cooling equipment in spring, heating in fall.

Clean the gutters (first of two). Spring cleaning clears winter debris ahead of spring rain. The standard recommendation is twice a year: spring and fall. Confirm downspouts carry water away from the foundation.

Scan the roof from the ground with binoculars: missing, curled, or damaged shingles, lifted flashing. Don't climb up — note what you see and call a roofer if anything looks off.

April: Exterior Reset

Check the HVAC filter — it likely needs a change after the winter heating season.

Inspect exterior caulk and paint. Cracked caulk around windows, doors, and trim lets water in and causes rot. Touch up what you can reach; higher work is pro territory.

Check washing machine hoses for bulging or cracking. If yours are rubber and more than a few years old, have a plumber swap them for braided stainless-steel hoses.

May: The Big Preventive Month

Clean the dryer vent. NFPA data (2014–2018): about 13,820 home dryer fires per year, roughly a third from failure to clean. Clean the lint trap after every load and the vent pipe annually; never run the dryer while asleep or away.

Flush the water heater. Rheem calls for yearly flushing to remove sediment that cuts efficiency and corrodes the tank. Test the temperature-and-pressure (T&P) relief valve by briefly lifting its lever — if it doesn't release water and stop, call a plumber. Same caution: if the valve is old and hasn't been tested in years, let the plumber do this — a long-neglected lever can start dripping after it's lifted.

Confirm the water heater is set to 120°F — the Department of Energy's recommendation for most households. Measure the hottest tap with a thermometer to make sure the dial is honest.

June: Cooling Season Check-In

Dial in the thermostat. DOE's baseline is 78°F when you're home in summer, higher when you're away. A schedule (or programmable thermostat) beats guessing daily.

Check the fridge temperature. The FDA recommends 40°F or below (freezer at 0°F). Verify with an appliance thermometer — most fridge dials don't show real temperatures.

Clear the AC condensate drain. A clogged drain line by the indoor unit causes mysterious ceiling water stains. Switch ceiling fans to summer mode to push air downward.

July: Outdoor Living

Inspect the deck. Look for loose boards, popped nails, wobbly railings, and soft spots that signal rot — a failing board is most likely to hurt someone in summer. Confirm the flashing where the deck meets the house is intact.

Deep-clean the range hood filter (most metal filters go in the dishwasher — grease buildup is both a fire risk and a performance killer), and after a heavy storm, check where water pools near the foundation. Trim branches touching the roof or siding.

August: Prep for Fall

Air-seal the envelope. Check weatherstripping — if you can see daylight around a closed door, it's leaking heated air. Re-caulk gaps flagged in April; small air-sealing jobs pay back every winter.

Check attic ventilation (vents and soffits not blocked by insulation) and test smoke alarms — then read the manufacture dates: alarms at or past 10 years old go on the October replacement list per NFPA 72.

September: Heating Season Prep

Book the fall furnace service — ENERGY STAR's second annual pre-season checkup. On gas units the technician should verify safe combustion and inspect the heat exchanger; a cracked heat exchanger is a carbon-monoxide risk.

Change the HVAC filter before heating season, and check CO alarms: most expire after about 7 years, and combination units follow the shorter life. Test monthly.

October: Winterize

Winterize outdoor plumbing. Disconnect and drain garden hoses, shut off the interior valve to exterior faucets, and drain the line. Frozen outdoor plumbing bursts in the first hard freeze.

Clean the gutters (second of two) after the leaves finish falling and before the first hard freeze — clogged, frozen gutters contribute to ice dams that push water under shingles.

Replace expired smoke alarms (NFPA 72: at least every 10 years from the manufacture date — hardwired and 10-year-battery units expire too). Stock up on furnace filters while you're shopping.

November: Seal and Inspect

Inspect attic insulation — compressed, stained, or missing insulation over living space is money escaping through the ceiling. Note problem areas for a winter insulation project.

Check window and door locks (a window that won't lock won't seal), test GFCI outlets, and walk the exterior for anything winter will punish: loose siding, detached downspouts, firewood against the house.

December: Close the Year Out

Do the year-end safety sweep: test every smoke and CO alarm, confirm the fire extinguisher gauge is in the green zone, and keep the area around the furnace and water heater clear of stored items.

Review the maintenance budget. Compare what the house actually cost against what you saved, then update next year's budget for the ages of your big systems. If the furnace is 18 or the water heater is 14, next year's plan should say "get quotes," not "hope."

Frequently Asked Questions

How often should I change my HVAC filter?

ENERGY STAR says to check it every month and change it at a minimum every three months. Homes with pets, allergies, or 1-inch filters often need monthly changes.

How often do smoke detectors need to be replaced?

NFPA 72 requires replacement at least every 10 years from the manufacture date on the back — hardwired and 10-year-battery models too. Install them inside every bedroom, outside each sleeping area, and on every level including the basement; test them monthly.

Is cleaning the dryer vent really a fire-safety issue?

One of the biggest. NFPA data shows an average of about 13,820 home dryer fires per year (2014–2018), roughly a third from failure to clean. Clean the lint trap after every load, the vent pipe annually, and never run the dryer while asleep or away.

Bottom Line

Twelve months, a few dozen small tasks, and two habits that never stop: check the HVAC filter every month, test the alarms every month. A house that gets its small maintenance on schedule rarely surprises its owner.

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