The Late-August Jobs That Get Your House Ready for Fall

Mid-August in Windsor-Essex still feels like the middle of summer. The pools are open, the corn is in, and nobody is thinking about the furnace. That's exactly why the next few weeks are the cheapest maintenance window you'll get all year.

Contractor calendars turn over fast in September. Heating techs, roofers, chimney sweeps and arborists go from open to booked within about two weeks of the first cold morning, and the jobs that need doing before winter are the ones with the longest lead times. Booking now costs the same as booking in October. You just don't wait.

Here's the fall home maintenance checklist that actually earns its spot, roughly in the order it should get done.

Book the trades now, in this order

1. Furnace or heat pump service. Late August sits between the cooling and heating seasons, which is the one stretch of the year when a tune-up is a scheduled appointment rather than a place in line. Ask them to check the heat exchanger and replace the filter while they're there.
2. Chimney and fireplace inspection, if you burn anything at all. Sweeps book out through the entire fall, and a fireplace is one of the appliances that triggers Ontario's carbon monoxide alarm rules.
3. Roof and eavestrough check. You want someone up there while the surface is dry and walkable. A missing shingle found in August is a repair. The same shingle found in December is a ceiling stain.
4. Tree limbs over the roof, driveway and service lines. Arborists get buried after the first real windstorm. Trimming before leaf drop is cheaper, faster and far less messy.

None of these are urgent today. That's the point. Everything on this list becomes urgent at the same moment for everyone in the county, and the people who called in August are the ones already on the schedule.

Get water moving away from the house

Fall storms in Essex County arrive with volume, and the damage they cause is almost always about drainage rather than the roof. Walk the perimeter and check four things: downspouts discharging at least two metres from the foundation, eavestroughs clear enough to actually carry water, soil sloping away from the wall rather than toward it, and a sump pump that runs when you pour a bucket into the pit.

If your basement has a history, Windsor homeowners have a program worth knowing about. The City's Basement Flooding Protection Subsidy Program covers up to $3,500 per property as a lifetime maximum, on a first-come, first-served basis.

Two rules disqualify more applications than anything else. You have to confirm eligibility and receive approval before any work begins, and the work has to be done by a plumber licensed with the City of Windsor. Work you do yourself doesn't qualify, and neither does work started before approval. Apply first, then call the plumber.

The fall home maintenance checklist item most Ontario homeowners skip

The rules on carbon monoxide alarms changed on January 1, 2026, and plenty of people still haven't caught up. If your home has a fuel-burning appliance, a fireplace, an attached garage, or heated air coming from a fuel-burning appliance located outside the house, the Ontario Fire Code now requires a CO alarm on every storey, plus one adjacent to each sleeping area. Storeys without bedrooms count. For most Windsor houses with a gas furnace and a finished basement, that means at least one more alarm than the old rule required.

Smoke alarms are separate and are not interchangeable with CO alarms. Ontario has long required a working smoke alarm on every storey and outside all sleeping areas.

Daylight saving time ends on November 1 this year. That's the standard reminder to test everything and swap batteries, and it's a reasonable deadline to work back from.

Outdoor work with a real deadline

Frost usually returns to Windsor around the end of October, later than most of Ontario, which gives you roughly ten weeks. A few jobs simply stop being possible after that.

• Exterior caulking and paint. Most products need surface temperatures above 5 to 10 degrees Celsius to cure, so check the label and plan to finish by early October.
• Hose bibs and irrigation lines: shut off, drain, and disconnect hoses before the first hard freeze.
• Gaps at the foundation, soffits and dryer vent. Mice start looking for somewhere warm in September, well before you start looking for them.
• Weatherstripping on exterior doors. If daylight is visible around the frame, that gap is costing you every hour the furnace runs.

One thing worth doing this week, before any of the rest: walk the property after the next hard rain and photograph anywhere water pools within two metres of the foundation. Those photos are the fastest way to get an accurate quote on grading or drainage, and they're the record you'll want if a claim ever comes up.