Fall Checklist for Closing Your Cottage or Trailer

Sep 18, 2026

Categories: Fall 2026

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As another cottage season comes to an end, closing your seasonal property properly can help prevent costly repairs, reduce the chance of winter damage, and make opening weekend smoother next spring. The best approach is to work through the property methodically: confirm insurance coverage and associated documentation is in place, inspect the building, winterize the water system, store batteries safely, remove food and perishables, discourage pests, and secure the exterior before you lock the door.

Steps Before You Leave

Start with the essentials. Confirm that your cottage, trailer, boat, dock, and recreational equipment are properly insured and keep policy documents where they can be found quickly if there is a claim. If you are towing a trailer, test the lights, wiring connections, and safety chains before the towing vehicle is packed. Gather every key for the cottage, sheds, boathouse, utility rooms, and storage lockers so the entire property can be locked and accounted for before departure.

1. Inspect the Property

Before you begin shutting systems down, walk the property and look for damage that could worsen over the winter. Check power and telephone lines, the roofline, chimney, deck, dock, windows, screens, siding, and foundation supports. Look beneath the cottage or trailer at posts, pads, beams, and crawl-space areas for signs of movement or water damage. Trim branches that have grown too close to the building and remove any large limbs that could fall during a winter storm.

2. Winterize the Water System

Frozen pipes and water damage are among the biggest risks for seasonal properties. If your property will be closed for an extended period, shut off the main water supply, water intake, or pump; turn off the water heater; open faucets, valves, and low-point drains; and drain lines as completely as possible. Do not forget appliances such as dishwashers and washing machines, exterior hoses, flexible sprayer lines, and any water filtration or treatment equipment.

Once the system is drained, add plumbing antifreeze to traps and fixtures such as sinks, tubs, showers, floor drains, toilet bowls, and toilet tanks. If you are not fully draining the system and are leaving heat on, keep the temperature no lower than about 13°C (55°F), open cabinet doors under sinks so warm air can circulate around pipes, and insulate pipes in unheated areas such as garages, crawl spaces, or exterior walls.

3. Shut Down Utilities Safely

After the plumbing is protected, disconnect propane tanks where appropriate and shut off non-essential electrical circuits. Unplug electronics, chargers, small appliances, and major appliances that will not be used over the winter. If certain systems must remain active, such as smoke alarms, carbon monoxide detectors, security alarms, freeze monitors, exterior lighting, or cameras, confirm they are in good working order before you leave.

Smart thermostats, monitored alarms, leak sensors, and cameras can provide additional peace of mind by allowing you or a trusted contact to monitor temperature, water, fire, and security concerns while the property is vacant.

4. Store Lithium-Ion Batteries With Care

Many seasonal properties now include battery-powered tools, e-bikes, marine equipment, and recreational devices. Lithium-ion batteries should be inspected before storage and removed from service if they are swollen, damaged, or no longer hold a charge. Avoid leaving batteries plugged in after they reach a full charge, never leave them charging unattended or overnight, and keep them on a cool, dry, flat surface away from direct sunlight and combustible materials.

When charging is needed, use the charger designed for the battery and plug it directly into a wall outlet rather than a power bar or extension cord. Used or damaged lithium-ion batteries should never go in household garbage or curbside recycling. Take them to an approved battery recycling or hazardous waste drop-off location; one Canadian resource for locating battery drop-off sites is Recycle Your Batteries.

5. Prepare the Interior

Remove all perishable food, empty garbage containers, and clear out any remaining refrigerator and freezer contents. If the fridge or freezer will be turned off, defrost and clean them, then prop the doors open to help prevent odours and mould. Store any remaining dry goods in sealed, rodent-resistant containers and take-home items that could freeze, leak, or attract pests.

Wildlife often looks for shelter as temperatures fall. Before you leave, seal gaps around pipes, vents, exhaust outlets, doors, and foundation openings. Check that chimney caps and vent screens are secure, and store linens, clothing, and soft materials in sealed containers where possible.

6. Complete Exterior Maintenance

Clean eavestroughs and downspouts so melting snow and spring rain have a clear path away from the cottage. Power wash siding (if needed), remove or secure outdoor furniture, protect or pull docks in before ice starts forming, pull in seasonal water lines, and secure boats, trailers, ladders, tools, barbecues, and recreational equipment. Lock all windows, doors, sheds, boathouses, and outbuildings before leaving.

7. Test Safety Equipment and Record the Condition

Replace batteries in smoke alarms and carbon monoxide detectors, test alarm systems, check motion or security lighting, and confirm any monitored systems are active. Closing weekend is also a good time to replace filters, schedule septic service if it is due, note repairs that should be handled in spring, and take photos of the property’s condition for your own records.

Now You Can Leave With Confidence

Closing a cottage or seasonal trailer is about more than locking the door. A few extra hours spent draining water lines, reducing fire hazards, discouraging pests, securing the property, and documenting its condition can help prevent expensive surprises and make next spring’s return far more enjoyable.