Pre-Winter Snow Site Checklist for Commercial Properties: What to Do Before the First Storm

The best time to prepare a commercial lot for snow is late October and early November, before the ground freezes and before the first plowable snowfall. A proper pre-winter walk-through covers five things: marking every hazard with snow stakes, agreeing on a site map with your contractor, choosing where snow will be piled, checking drainage, and getting the scope in writing.

Most of the damage and most of the disputes in a snow season come from problems that were visible in October. A curb nobody marked. A drain that was already clogged. A pile placed where meltwater runs straight across the main entrance. An hour on site now saves a lot of phone calls in January.

1. Walk the site with your contractor

Do the walk-through in daylight, with the contractor's site lead if possible, not only the salesperson who quoted the job. The people plowing at 3 a.m. need to know the site, and a printed map is no substitute for having seen it.

Bring the property plan or an aerial image. As you walk, note:

• every curb, island, speed bump and parking stop
• fire hydrants, standpipes and gas meters
• light pole bases, bollards and sign posts
• loading dock edges and dock plates
• landscaped beds, low shrubs and irrigation heads near the pavement
• catch basins and trench drains
• accessible parking spaces and the accessible route to each entrance

Anything a plow blade can hit once the snow is down belongs on that list.

2. Stake everything that will disappear under snow

Snow stakes (the tall fibreglass or wooden markers you see along lot edges) show the plow operator where the pavement ends and where obstacles sit. They have to go in before the ground freezes, otherwise they cannot be pushed in and end up taped to things or not installed at all.

Ask who supplies and installs the stakes. Many contracts include it, some charge for it, and some leave it to the property. Agree on a colour convention if the site is large, for example one colour for curbs and edges and another for hydrants or fragile items.

Take photos of the installed stakes. If a curb or a lawn edge is damaged later, those photos are the starting point for any discussion about who pays.

3. Agree on the site map and priorities

A good snow site map is one page and shows:

• the areas to plow and the areas to leave alone
• sidewalks, steps, ramps and entrances that are cleared by hand
• the priority order, usually main entrances and fire lanes first, then accessible spaces and the accessible route, then drive aisles, then remaining parking
• snow storage zones
• areas where salt is not allowed or where a different de-icer is required

Give a copy to the contractor and keep one on file. If staff, tenants or security patrol the site, give them one too, so everyone has the same picture of what "done" looks like.

4. Choose snow storage zones carefully

Where the snow goes matters as much as how fast it moves. Poor pile placement causes most of the refreeze problems that show up in February.

Good storage zones:

• sit downhill of drains, or at least do not drain across walkways or drive aisles
• do not block sight lines at exits onto the street
• stay away from hydrants, building air intakes and dumpster enclosures
• do not cover accessible parking spaces
• leave room for the next storm, not only the first one

If there is not enough room on site for a typical winter, plan for hauling now. Our post on snow hauling for commercial properties in Montréal explains when piling stops working and how hauling is usually priced.

Also check municipal rules. Most Canadian and US municipalities do not allow snow from private property to be pushed onto the public street, sidewalk or around hydrants. Your plan has to keep snow on site or truck it away.

5. Check drainage and pavement condition

Clear catch basins and trench drains of leaves before freeze up. A blocked drain in November becomes a sheet of ice in March.

Look for potholes, heaved slabs, broken curbs and loose drain covers. Plow blades catch on these, and damage around them is hard to attribute after the fact. Either fix them before winter or mark them on the site map and stake them.

Downspouts that discharge onto walkways are a common source of ice at entrances. If you cannot reroute them this season, flag them so the crew knows those spots need extra attention after each thaw.

6. Confirm the scope in writing

Before the season starts, the following should be in the signed contract or a written annex:

• season start and end dates
• trigger depth for plowing and for sidewalks
• the time the site must be clear (for example, before 6 a.m. on business days)
• salting or de-icing frequency and the product used
• what happens during long storms (return visits, cleanup after the storm ends)
• hauling terms, if any
• how each visit is recorded

Records matter more than most managers expect. In Ontario, the Occupiers' Liability Act requires written notice of a snow or ice slip claim within 60 days, and claims elsewhere often arrive months after the fact. Dated logs of each visit, with snowfall, time on site, areas cleared and salt applied, are what protect the property. Our post on snow event logging covers what a useful log shows.

If you have not compared contract models yet, our guide to commercial snow contract types walks through seasonal, per-event and hourly pricing.

7. Prepare the building side

Snow service usually stops at the door. Inside, check that entrance mats are ready, that there is a supply of ice melt for spot treatment near each entrance, and that someone on staff knows who to contact if an area is missed. Make sure the contractor has a current contact for after-hours access to gates or locked areas.

Quick checklist

• Walk-through done with the contractor's site lead
• Hazards and edges listed on the property plan
• Snow stakes installed before freeze up, photos taken
• One-page site map with priorities and storage zones, shared
• Drains cleared, pavement defects fixed or marked
• Downspouts and known ice spots flagged
• Scope, trigger, deadline, salting and hauling terms signed
• Visit logging method agreed
• Entrance mats and spot de-icer ready inside

Frequently asked questions

When should snow stakes be installed on a commercial property?

Install them before the ground freezes, which in Greater Montréal, Toronto and most northern US cities usually means late October to mid November. Once the ground is frozen, stakes cannot be pushed in properly and tend to get skipped. Earlier is better, as long as they will not be knocked down by fall landscaping work.

Who is responsible for marking hazards before snow season, the owner or the contractor?

It depends on the contract. Many snow contracts include staking, but the property owner or manager is still the one who knows where hidden items such as irrigation heads, buried drains or fragile edging are located. The safest approach is a joint walk-through and a written list of who installs what.

What should a snow removal site map include?

It should show the areas to plow, the sidewalks and entrances cleared by hand, the priority order, the snow storage zones and any areas with salt restrictions. Keep it to one page so crews actually use it. Share the same version with the contractor, building staff and anyone who patrols the site.

Is it too late to prepare a commercial lot for winter in November?

Not usually. Most of the checklist can still be done in November, including the site map, scope and drainage checks. The main item that becomes hard after a freeze is installing snow stakes, so prioritise that first.

Get your site ready for winter

If you want a walk-through and a written scope for your property, send us the details through our quote form. We serve commercial sites across Canada and the US, with Greater Montréal as home base; see our coverage for Montréal and Toronto.