What a commercial snow contract actually commits both sides to

Trigger depth is the accumulation at which we come out without being called. Set it at two inches and a Westchester winter produces a lot of visits, many of them for storms that were arguably going to melt off by lunchtime. Set it at three or four and you have fewer visits, but you accept that the lot will carry some snow between them.

For a commercial property the right number usually comes from what the site has to do rather than from the weather. A medical building that opens at seven with elderly patients crossing a lot is a different trigger from a contractor yard where the first arrival is a pickup truck at nine. A retail lot that has to look open by the time the doors unlock is different again.

Walks are often set at a lower trigger than the lot, and for good reason: a two inch lot is an inconvenience, a two inch walk with a freeze on top of it is the thing that generates a claim. It is normal and sensible to write different triggers for pavement and pedestrian surfaces in the same agreement.

A response window that begins when snow starts falling is unworkable in a storm that runs for eighteen hours. Anything cleared at hour four is covered again by hour eight, so the meaningful commitment is measured from when accumulation stops.

That leaves the question of what happens during a long storm, and it should be answered in writing rather than assumed. On a property that has to stay open through a storm, the answer is usually interim passes: the lot gets worked during the event to keep it usable, with the full clear once it ends. On a property that closes, one thorough clear after the storm is more efficient and costs less.

Overnight is where most commercial work actually happens in Westchester, because an empty lot can be cleared properly and a full one cannot. Cars left in a lot during a storm are the single most common reason a lot ends up half done, and it is worth agreeing in advance how that gets communicated to tenants.

Plowing is visible and ice is not, and the ice is what hurts people. A lot that was cleared perfectly at four in the morning can be a sheet by eight if meltwater ran across it and the temperature dropped. In our climate that refreeze cycle is routine from December through February, and it is the mechanism behind most winter slip claims.

So the treatment schedule matters more than the plowing schedule. That means where salt or sand goes, when it goes down relative to the clear, whether the property gets pre-treatment ahead of a forecast event, and how drainage across the site is handled so meltwater is not crossing the path people walk on.

Sites vary enormously here. A lot that pitches toward its entrance will refreeze at the entrance every time. Downspouts discharging across a walk will ice that walk after every thaw. Those are site problems that a snow contract can manage but not cure, and they are worth identifying before the season rather than after the first incident.

A slip claim does not usually surface the same week. It surfaces later, and the question is always the same: what was done at that property, and when. If the answer is a recollection, that is a weak position for everyone involved.

What holds up is a record: date, arrival and departure times, what was plowed, what was treated, what material was used, and conditions on arrival. That record is worth having whether or not anything ever happens, and it is a reasonable thing for a property manager to require of any contractor.

It also settles the ordinary disputes that have nothing to do with liability. Whether a marginal storm hit the trigger, whether a treatment happened before or after the refreeze, whether the walks were done at the same visit as the lot. All of that is answered by the same record.

A seasonal contract is a fixed commitment for the season regardless of how many storms arrive. A per storm agreement bills the work that actually happens. The difference is not really price, it is who carries the risk of an unusual winter.

In a light winter, seasonal costs more than per storm would have. In a heavy one, it costs less, and the budget was known in October either way. Property managers who have to submit a number before the season often prefer seasonal for exactly that reason, and owners who would rather pay for what happened often prefer per storm.

The one thing worth knowing is that priority in a bad storm tends to follow the commitment. A contractor with more work than hours serves the properties that committed to the season first. That is not a threat, it is arithmetic, and it is the practical argument for settling the agreement before the forecast gets interesting.

What a season actually costs depends on the site, not on a rate card: lot square footage and layout, how much walk and how many steps are hand work, where snow can be stacked without losing spaces, the trigger you choose, whether treatment is included, and how many interim passes a long storm requires. Nelson walks the property and writes it out.

Stacking is the part that gets ignored in October and matters in February. Every pile has to go somewhere, and on a commercial lot that somewhere costs parking spaces. A site that stacks badly loses more spaces each storm as the piles grow and the melt refreezes them into place.

Piles also drain. A pile placed uphill of an entrance sends meltwater across that entrance every sunny afternoon, and that water refreezes overnight. Moving the pile to the low corner of the lot is free at the start of the season and impossible in January.

On tight sites the honest answer is sometimes that snow has to be hauled off after a major event rather than stacked. That is worth agreeing on in advance, because the alternative is discovering it with nowhere to put the next storm.