Fall Home Maintenance Checklist: What to Do Before Winter

Fall is the most important maintenance season for homeowners. Everything you do in September and October directly determines how expensive your winter is going to be.

A furnace that dies on December 28th could have been caught with a $75 tune-up in October. Gutters clogged with leaves cause ice dams that destroy fascia boards and ceilings. Unprotected hose bibs freeze and crack pipes inside your walls.

This checklist covers everything worth doing before the temperature drops. Work through it systematically — most tasks take under an hour each — and you'll go into winter with confidence instead of crossed fingers.

HVAC and Heating

Schedule furnace or heat pump servicing. Book this in September before HVAC companies get swamped with emergency calls in November. A tune-up typically costs $75–$150 and includes cleaning the heat exchanger, checking the flue, testing ignition, and measuring output. Technicians also catch early-warning problems — cracked heat exchangers, failing ignitors — before they become $2,000–$4,000 replacements.

Replace HVAC filter. If you haven't changed the filter recently, do it now before heating season. A clogged filter makes your system work harder, raising energy bills and shortening equipment life. Standard 1-inch filters should be swapped every 1–3 months; thicker media filters (4–5 inch) last 6–12 months.

Test thermostat. Switch to heating mode and confirm the system kicks on and reaches setpoint. If you have a smart thermostat, check that heating schedules are correctly programmed for the season.

Bleed radiators (hot water heat systems only). If your home has baseboard or cast-iron radiators, bleed trapped air from each radiator using the bleed valve and a towel. Air pockets prevent radiators from heating evenly. This takes about five minutes per radiator.

Check humidifier (if ducted). Whole-house humidifiers attached to forced-air systems need the water panel (evaporator pad) replaced annually. Inspect and clean the water supply line and drain.

Gutters and Drainage

Clean gutters after leaf fall. Wait until most leaves have fallen in your area — typically mid to late October in northern climates, later in the south. Clogged gutters overflow, directing water against your foundation and into your soffit. They also enable ice dams: water backs up behind the dam and infiltrates under shingles.

Inspect and test downspouts. Run a hose from the top of each downspout and verify water exits freely at the bottom. If it backs up, there's a clog — usually at the elbow where the downspout bends away from the house.

Check downspout extensions. Water discharged at the foundation wall will eventually find its way into your basement or crawl space. Extensions should direct water at least 4–6 feet from the foundation, sloping away from the house.

Inspect gutters for sag and separation. Cold weather makes small problems worse. Gutters should slope slightly toward downspouts (about 1/4 inch per 10 feet) and be firmly attached to the fascia. Any sections pulling away should be re-secured before snow loads stress them further.

Roof and Exterior

Inspect roof from the ground. Use binoculars to check for missing or lifted shingles, damaged flashing around chimneys and skylights, and moss or lichen growth. Any visible damage should be addressed before winter — a small leak in October becomes a significant interior moisture problem by February.

Check chimney (if you use it). Have the chimney professionally inspected and swept if you use your fireplace or wood stove. Creosote buildup is a fire hazard. Even if you rarely use the fireplace, a chimney cap inspection ensures no animals or debris have blocked the flue.

Caulk exterior gaps and penetrations. Check around window frames, door frames, utility penetrations (pipes, wiring, AC lines), and where siding meets trim. Old caulk cracks and gaps allow both drafts and water infiltration. Replace any caulk that's pulling away, crumbling, or discolored.

Inspect weatherstripping on all exterior doors. Close each door and check for daylight around the frame. Weatherstripping that doesn't create a firm seal lets cold air in and conditioned air out. Replacement weatherstripping is inexpensive and installs in minutes.

Seal or cover window AC units. If you have window air conditioners you're leaving in place for winter, use a foam cover or interior draft stopper to prevent cold air infiltration. Alternatively, remove and store the units.

Plumbing

Shut off and drain exterior hose bibs. This is one of the most important fall tasks in cold climates. Close the interior shut-off valve for each exterior faucet, then open the exterior faucet to let residual water drain out. Leave the exterior valve open slightly through winter. Frost-free sillcocks (which extend the shut-off into the heated space) are more tolerant but still benefit from having hoses disconnected.

Disconnect garden hoses. Even frost-free sillcocks can freeze if a hose is left connected — the water can't drain back from the hose into the wall.

Locate your main water shut-off. Know where it is before a pipe emergency happens. If it's stiff or hard to turn, have a plumber service it — the last thing you want is to be fighting a corroded shut-off while water is pouring through your ceiling.

Insulate exposed pipes in unheated spaces. Pipes in unheated garages, crawl spaces, and against exterior walls are freeze risks. Foam pipe insulation is cheap and installs without tools.

Check sump pump (if applicable). Pour a bucket of water into the sump pit to confirm the pump activates and drains properly. A sump pump that fails during spring thaw or winter rain event can cause a basement flood. Consider a battery backup pump if you don't have one.

Windows, Insulation, and Weatherization

Check attic insulation level. Proper attic insulation reduces heat loss dramatically. In most climates, you want R-38 to R-60 in the attic (about 10–15 inches of blown cellulose or fiberglass). If you can see the attic floor joists through the insulation, you need more.

Inspect attic ventilation. Good attic airflow prevents moisture buildup in winter and heat buildup in summer. Soffit vents and ridge vents should be clear. Ice dams are often caused by a warm attic melting snow on the roof — proper insulation and ventilation address the root cause.

Add door draft stoppers. Interior door draft stoppers at the bottom of exterior doors and garage entry doors supplement weatherstripping and are especially helpful in older homes where the door threshold is worn.

Test smoke and CO detectors. With heating season starting, CO detector testing becomes especially important. Replace batteries, confirm detectors are within their service life (most are rated 5–10 years), and add a CO detector near sleeping areas if you don't have one.

Exterior and Yard

Drain and store irrigation systems. If your area freezes, irrigation lines must be blown out or drained before the first hard freeze. Most homeowners hire an irrigation company for a blow-out, typically $50–$100. Frozen sprinkler heads and lines are expensive to replace.

Drain and store garden hoses. Hoses left full of water can crack in freezing temperatures.

Bring in outdoor furniture or cover it. UV and cold weather degrade patio furniture. Metal and wood pieces fare much better stored or covered.

Shut down and cover outdoor water features. Ponds and fountains should have pumps removed and stored; any remaining water should be allowed to either drain or freeze naturally without pressurized components in it.

Stock emergency supplies. Before the first storm, confirm you have: snow shovel or snowblower (tested and fueled), ice melt or sand, extra furnace filters, flashlight and batteries, and if you have a generator, fresh fuel with stabilizer.

Garage and Vehicles

Test garage door auto-reverse. Place a 2x4 flat on the garage floor under the door and activate the close cycle. The door should reverse immediately on contact. This safety test takes 30 seconds and should be done annually.

Lubricate garage door hardware. Spray lubricant on hinges, rollers, and springs (not the track). Cold temperatures make metal stiff; dry hardware in winter leads to premature wear.

Switch to winter windshield washer fluid. Summer washer fluid freezes in the reservoir and on your windshield. Use fluid rated for your local minimum temperature.

A Note on Prioritization

If the full list feels overwhelming, focus on the high-consequence items first: furnace service, hose bib shutoffs, gutter cleaning, and weatherstripping. These four prevent the most expensive problems — frozen pipes, ice dams, drafty heat loss, and furnace emergencies in the middle of January.

The rest can be phased in over several weekends. Fall maintenance done methodically over a few Saturdays is a lot more manageable than handling emergency repairs in winter.

The Broader Cost Picture

Staying on top of seasonal maintenance is one of the best investments you can make as a homeowner. It extends system life, prevents emergency repair costs, and documents your care of the home when you go to sell.

But the cost of homeownership starts before you even move in. Closing costs alone — lender fees, title insurance, prepaid taxes, transfer taxes — typically run 2–5% of the purchase price. Understanding exactly what you paid at closing, what was negotiable, and how to compare lenders next time is just as important as keeping up with the maintenance once you're in.

The Closing Cost Guide breaks down every line on your Closing Disclosure, explains what each fee is and who it goes to, and includes state-by-state estimates for your next home purchase or refinance.