Published: September 2026
Is Your Home Ready for Fall?
Fall is short in Ontario, and the small maintenance jobs that get skipped now can turn into bigger problems by January. Before the heating season starts, it’s worth spending an afternoon on a few simple checks that can help uncover drafts, moisture problems, and other issues that may lead to higher heating bills or bigger problems once winter sets in. Here’s exactly what to look at, and why each one matters.
Quick Answer: 8-Step Home Maintenance Checklist for Fall
- Check your windows and doors for drafts, the most common source of heat loss in Ontario homes once temperatures drop.
- Clean your gutters and downspouts so fall rain and melting snow drain away from your foundation instead of backing up.
- Inspect your furnace and replace your HVAC filter so your heating system isn’t working harder, and costing more, than it needs to.
- Check your home for water leaks, especially around foundations, roofs, and basement windows, before freeze-thaw cycles make small leaks worse.
- Protect or store outdoor furniture before the first frost damages fabric, cushions, and finishes.
- Shut off and drain exterior water lines so water left in outdoor faucets and pipes doesn’t freeze and cause damage over the winter.
- Test your smoke and carbon monoxide alarms so you know they’re working properly before furnaces, fireplaces, and other heating systems are used more often.
- Inspect your roof before winter so loose or damaged shingles, flashing, and vents can be addressed before snow and ice make problems worse.
Why Fall Prep Matters Before Ontario Winters Arrive
Many of the problems that make an Ontario winter more expensive or uncomfortable start with something small that went unchecked in the fall: a clogged gutter, a dirty filter, or a draft nobody noticed until the heating bill arrived. None of these checks take long on their own. Do them before the weather turns to avoid emergency repairs and make the next few months more comfortable.
Ontario homeowners should also check window and exterior door seals before heating season begins. Tarion recommends inspecting window and door seals, replacing worn weatherstripping, cleaning or replacing furnace filters, checking for moisture, and clearing gutters and downspouts as part of fall home maintenance.
Taking care of these smaller jobs before temperatures drop gives you time to address problems before snow, ice, and freezing temperatures make repairs more difficult.
1. Check Your Windows and Doors for Drafts
What to check: On a cool or windy day, hold your hand near the window and door frames and check for noticeable air movement. For smaller leaks, hold a thin piece of tissue near the frame or carefully use the smoke from an incense stick. Movement can help reveal where outside air is getting in.
With windows, check for condensation or fogging between the panes of glass, recurring drafts, frames that are warped or damaged, and windows that are difficult to open, close, or lock. If a window still feels noticeably cold or drafty around the frame even when it is fully closed, it may be a sign that the problem goes beyond just worn weatherstripping and may require
For exterior doors, inspect the weatherstripping around the frame, the sweep along the bottom of the door, and the threshold for gaps or debris. Make sure the door closes evenly and the latch and deadbolt line up without needing extra force.
Clear dirt and debris from the threshold, and lubricate hinges if the door is squeaking or becoming difficult to operate. Also check the caulking and insulation around the frame for visible gaps that could be letting cold air in.
Why it matters: Drafts around windows and doors can make rooms less comfortable and force your heating system to work harder. Natural Resources Canada recommends checking these areas and sealing appropriate gaps with caulking or weatherstripping.
If the same window or door feels drafty every year even after weatherstripping or caulking, the issue may go beyond a worn seal. The frame, insulated glass unit, door sweep, threshold, or insulation around the opening could be contributing to the problem. A professional inspection can help determine whether a simple repair is enough or whether the window or door itself is no longer performing as it should. (Source: Natural Resources Canada)
Not sure if that draft is a simple fix or something more?
Brookstone can take a closer look and help you understand whether your window or door needs a repair, adjustment, or replacement.
2. Clean Your Gutters and Downspouts
What to check: Clear leaves and debris from your gutters, and confirm downspouts direct water at least a few feet away from your foundation.
Why it matters: A blocked gutter sends water down your siding and toward your foundation instead of away from it. In Ontario, water that pools and then freezes near a foundation is how small cracks turn into bigger ones over a single winter.
3. Inspect Your Furnace and Replace the Filter
What to check: Inspect your furnace before the heating season begins and replace the filter if it’s visibly dirty or clogged. Depending on the filter and heating system, many filters need attention every one to three months, so always follow the manufacturer’s recommendations.
If your furnace is due for professional maintenance, September or October is a good time to schedule it. HVAC companies can book up quickly once temperatures drop, so getting ahead of the first cold snap can make it easier to have your system checked before you really need it. If your home has a chimney or flue, inspect it for visible damage or blockage as well.
Why it matters: A clogged filter makes your furnace work harder to push air through it, which usually shows up as a higher heating bill and, over time, more wear on the system itself.
4. Check Your Home for Water Leaks
What to check: Walk your basement, foundation, and roofline looking for damp spots, staining, or musty smells, and check the seals around basement windows specifically.
Why it matters: A leak that seems minor in September can get significantly worse once freeze-thaw cycles start working on it. Catching it now, while repairs are simpler and cheaper, is worth the walk-through.
5. Protect or Store Outdoor Furniture
What to check: Clean, dry, and cover or store cushions, fabric furniture, and anything with a finish that can crack in freezing temperatures.
Why it matters: The first hard frost is often earlier than people expect. Furniture left out through repeated freeze-thaw cycles wears out faster than furniture that’s covered or stored before the cold sets in.
6. Shut Off and Drain Exterior Water Lines
What to check: Disconnect garden hoses, shut off the exterior water supply if your home has a separate shutoff, and drain outdoor faucets and water lines before the first freeze. Store hoses somewhere protected from the weather.
Why it matters: Water left inside an exterior line can freeze and expand, increasing the risk of a cracked pipe or damaged connection. Taking care of outdoor water lines in the fall can help prevent a much bigger plumbing problem in the middle of winter.
Tarion specifically recommends shutting off exterior water supplies and thoroughly draining exterior water lines and hoses before winter.
7. Test Your Smoke and Carbon Monoxide Alarms
What to check: Press the test button on every smoke and carbon monoxide alarm in your home. Replace weak batteries, check the expiry date on each unit, and follow the manufacturer’s instructions for placement and replacement.
Why it matters: Furnaces, fireplaces, and other fuel-burning appliances are used more often once the weather gets cold. Working smoke and CO alarms are an important part of keeping your home and family safe throughout the heating season.
8. Inspect Your Roof Before Winter
What to check: From the ground, look for missing, loose, cracked, or damaged shingles and obvious problems around flashing, vents, and roof edges. If you spot damage, have a roofer inspect it before winter.
Why it matters: A small roof problem can become much harder to deal with once snow, ice, and freezing temperatures arrive. Fall gives you a chance to address visible damage before winter weather puts more stress on the roof.
Tarion also includes checking shingles, flashing, and roof vents in its fall maintenance guidance.
A Few More Things Worth Checking Before Winter
A few other fall checks are worth adding to your list. Clean your dryer vent, check your HRV or humidifier if your home has one, make sure exterior exhaust vents are clear, and test your sump pump if you rely on one for basement drainage. If you use a fireplace, fall is also a good time to have the chimney and damper checked or cleaned if needed.
Is It Time for More Than a Quick Fix?
If the same window or door gives you trouble every winter, it may be time to look beyond another quick fix. Ask yourself:
- Does the draft come back every year even after weatherstripping or caulking?
- Are you seeing condensation between the panes of the glass itself, not just on the surface?
- Is the frame showing visible wear, warping, or rot?
- Would a lower winter heating bill make a real difference to your budget?
If you answered yes to any of these, a free, no-obligation consultation can help you understand what’s actually going on and whether replacement makes sense for your home.
💡 Good to know: Brookstone’s full lifetime warranty covers both parts and labour, with no exclusions. That means if there’s ever an issue with the product or the installation, you’re covered for as long as you own your home.
Frequently Asked Questions:
If a draft improves after replacing weatherstripping or caulking, the issue was likely with the seal. If drafts keep coming back, you see condensation between the panes, the frame is warped or damaged, or the window is difficult to open, close, or lock, the problem may go beyond a simple reseal. In that case, it may be worth having the window assessed to see whether repair or replacement makes more sense.
At least twice a year, once in fall after most leaves have dropped, and once in spring. Homes surrounded by mature trees may need it more often.
Check it monthly during heating or cooling seasons and replace it if it looks visibly dirty or clogged, most 1-inch filters need replacing every 1 to 3 months.
It’s common, but not normal and not something you have to accept. A draft that returns every year usually points to an issue with the frame or seal itself and may require a replacement rather than a temporary fix.
A full lifetime warranty on parts and labour, with no exclusions, no depreciation in value, and no fine print, for as long as you own your home. See the full warranty details.
Most standard replacement windows range from $900 to $2,900 installed, with bay, bow, and custom windows starting around $3,000. See the full cost guide for a detailed breakdown.
Early fall is a good time to start. Aim to complete outdoor maintenance, window and door draft checks, heating-system preparation, and exterior water shutoff before sustained freezing temperatures arrive.
If your door still feels drafty after replacing worn weatherstripping, check the door sweep, threshold, frame alignment, and insulation around the opening. A door that sticks, does not close evenly, has visible gaps, or shows signs of warping or frame damage may need more than a seasonal seal repair.
Ready to Get Your Home Winter-Ready?
If your fall checklist uncovered recurring drafts, condensation between panes, or a window or door that no longer closes properly, Brookstone can help you figure out the next step.