Winter-Ready Job Sites: How to Prepare Your Trailers and Containers for a Northwestern Ontario Winter

Frozen lines, drifting snow and dead heaters can shut a site down. Use this checklist to get your site trailers and storage containers ready for winter.

In Northwestern Ontario, winter isn't a season you work around — it's one you plan for. Temperatures well below -30°C, heavy snow and short daylight hours put real stress on site offices, washrooms and storage. A little preparation in the fall saves a lot of downtime in January.

1. Check heat before you need it

Test every furnace and heater now, while it's still mild. Make sure thermostats work, filters are clean and power supply is reliable. A trailer that loses heat overnight can mean frozen water lines and a crew standing in the cold the next morning.

2. Protect your water and washroom systems

Frozen pipes are the number one winter headache. Confirm heat tracing is working on any exposed lines, and that holding tanks are insulated or heated. If a washroom unit won't be used for a stretch, please drain and winterize it.

3. Seal doors, windows and skirting

Walk around every unit. Look for worn door seals, cracked window caulking and gaps in the skirting. Skirting keeps wind from blowing under a trailer and freezing the floor and lines. Small gaps let in a surprising amount of cold.

4. Plan for snow

Snow builds up fast on roofs and around doors. Decide who clears it and how often. Keep the area around entrances, stairs and ramps clear and sanded — slips and falls are a serious winter safety risk. Leave room for plows and for delivery trucks to reach units if they need to be swapped out.

5. Keep containers dry inside

Steel storage containers can collect condensation when temperatures swing. Store sensitive items off the floor on pallets, and keep vents clear. Check that door gaskets are in good shape so snowmelt stays out. Lock mechanisms can freeze, so a can of de-icer in the truck is worth having.

‍

Secure Store's fleet works year-round on sites across Thunder Bay, Kenora, Sudbury and beyond. If you need a winter-ready office, washroom, mine dry or storage container, please email us!