When do we plow? The 3-inch trigger, explained
What sends a plow truck to your property: the trigger depth, why three inches is the ceiling, and why you never have to make the call.
It's 5 a.m., it snowed four inches overnight, and you're standing at the window wondering whether anyone's coming.
If you've had that morning, this is for you.
The short version: a number does the deciding, not a phone call. Every property we plow has a trigger depth — the amount of snow that automatically sends the trucks out. You don't call. You don't text. When the snow hits the number, we roll. For driveways that number is three inches, and it doesn't go higher than that. On association drive lanes and commercial lots we often set it lower, because those have to stay open and safe for a lot more people.
We set that number with you at the site walk, before the season, and we write it into the contract. So there's no debate at 5 a.m. and no "I wasn't sure if you wanted us out for that one." The snow decides.
Why three inches
Because that's about where snow stops being cosmetic and starts being a problem.
Below three inches, most vehicles drive through it fine and the high-altitude sun does a lot of the work by mid-morning. Plow much sooner and you're paying for passes that don't accomplish much.
Wait much longer and it changes character. Snow gets driven on, packs down, refreezes, and bonds to the surface. Now it's not a plowing job — it's a scraping job, and what's underneath is ice instead of pavement. Everything about that is worse: it takes longer, it's harder on the equipment, and you end up needing de-icer you wouldn't otherwise have needed.
Three inches is the number that keeps the property clear without running trucks for nothing.
Three inches of what, exactly
Fair question, and it comes up.
We measure what's accumulated on the driving surface, not what's on the lawn or piled on a railing. A four-inch snowfall that's been blowing sideways might leave one inch on an open drive and eight in a drift against a garage door.
That's why the site walk matters. We know your property's drift patterns before the season starts — the corner that fills in, the spot where the wind scours it bare. Those are the details that decide whether a storm is a trigger event or not, and they're easier to see in October than at 4 a.m. in January.
We'll go lower. We won't go higher.
Three inches is the ceiling, not a starting point.
Past three, snow stops being something a truck pushes and starts being something a truck fights. It gets heavier and denser, and the blade is carrying more than it was built to carry. That's hard on hydraulics, hard on a transmission, and hard on whoever's driving. A company that lets snow stack to six inches before rolling is buying itself repairs.
Below three inches there's nothing much to move. Two inches on a driveway isn't a problem — vehicles drive through it and the sun takes care of most of it.
So we'll set the trigger lower where there's a reason: a steep grade that gets slick early, a drive lane that has to stay open for fifty residents leaving for work, a business that can't have a flake on the lot, a household with a medical-access concern. Lower is a scheduling decision, and we make it at the site walk.
Higher is an equipment decision, and the answer is no.
What if someone drives on it first?
Happens constantly, and at three inches it's fine.
Somebody leaves for work before we get there and packs the tracks down. The blade still gets under packed snow that shallow, and what's left behind is thin enough for the high-altitude sun to finish by afternoon.
That's only true because we came at three. Snow that sits and builds through several storms is a different material, which is the next section.
Why we only do seasonal contracts
Second-home owners ask about this more than anyone, and the answer is mechanical rather than commercial.
A house that sits empty through December collects snow. It softens in the afternoon sun, refreezes overnight, and the next storm lands on top of that. Do it four or five times and what's on the driveway isn't snow anymore. It's layered ice with snow on top, bonded to the surface.
A plow truck can't take that off. The blade rides over it. At that point it's a scraping job with hand tools and de-icer — hours instead of minutes, and it costs more than a whole season of plowing would have.
That's why there's no "call us when we're coming out in February." By February there's nothing a blade can do. The contract runs from November 15 whether anyone's in the house or not, because staying ahead of it every storm is the only thing that keeps a driveway plowable.
How you know it happened
Every plow date lands on your monthly invoice. If it snowed and we came, it's on the bill, in writing.
That matters more than it sounds. If an owner asks a board "did they even come out for that storm on the 14th," the dates answer it without anyone's memory getting involved. Ask for the full service log any time and it's yours.
So — when do we plow?
When the snow hits your number.
You don't watch the forecast. You don't make the call. You don't stand at the window wondering. That's the whole point of a seasonal contract, and it's how we've plowed this valley since 1993.
Want to know how the rest of a seasonal contract works — what's included, what's an add-on, and how it's priced? Here's the plain-English rundown of how snow contracts and pricing work. If you're a board comparing bids, start with HOA and association snow contracts.
Questions about the trigger
Lower, yes — steep grades, drive lanes, and lots often get set below three inches at the site walk. Higher, no. Past three inches snow gets heavy enough to be hard on the equipment, so three is the ceiling rather than a starting point.
No. That's the point of the trigger. When the snow hits your set depth, we're already coming.
Every storm that reaches your trigger. Below that, plowing usually does more harm than good — you're moving very little snow and putting a blade on your surface for no reason. If you want a lower number, we'll set it.
Commercial and association properties first in the pre-dawn window, homes on the same route right behind. Working one tight loop is how we're first on the properties we take.
On the driving surface, not the lawn or a railing. Wind matters — a storm can leave an inch on an open drive and a foot in a drift against a garage. We know your property's drift patterns from the site walk.
No, and it isn't a policy thing. Snow that builds through December melts, refreezes, and gets snowed on again until it's layered ice bonded to the driveway. A blade rides over that. Clearing it becomes a hand-tool job that costs more than the season would have. Staying ahead of it every storm is what keeps it plowable.
Tell us about the property.
We reply within one business day with a seasonal price and a proposed scope. Pre-season requests get first spots on the route.