The premise
The bond is the whole argument
Ice that forms on bare pavement is a film the plow takes off in one pass. Ice that forms on snow-pack, or on pavement that was already wet and cooling, welds itself to the surface — and removing a weld is a chisel job at best and a claim at worst. Brine sprayed inside the window puts a salt film down first; the precipitation lands on the film, never touches the pavement, and stays a film itself. Nothing bonds, nothing chisels, and the three o’clock plow run reads like a road in July. The flats learned this the municipal way a decade ago; we run it for the lots the municipalities do not.
The window
Thirty-six to forty-eight hours before the first flake, pavement dry enough that the brine adheres as a film rather than runs, surface temperature at or above freezing and falling — and no rain between the spray and the storm. Miss the window and the brine is theatre; we publish the readings we acted on, storm by storm.
The solution
A 23.3% salt brine — the eutectic point, where the mixture resists freezing hardest — applied by the gallon to the acre, metered by tank and logged by address.
The residue line
Brine puts a fraction of the chloride into the joints, the lawn edge and the watershed that granular rock salt does — applied before the storm, under the snow, never on paws. The flats are a watershed district; the reduction is not a slogan, it is the permit.
Services & rates
The brine card, per lot and per lane
Every tier price is fixed at the October walk, when the lot is measured and the stack sites are mapped — the February that dumps four feet costs a route client nothing but patience. Non-clients are welcome at the recovery line, and the invoice usually makes the argument better than we do.
Pre-storm anti-ice application$0.11 / sq ft
23.3% brine inside the window, metered by tank, logged by address and temperature
Route tier — plaza & medical lotsfrom $1,650 / season
Brine before, plow and blow during, refreeze pass after · salting logs kept for your insurer
Route tier — strata & office rowsfrom $980 / season
The same chemistry at row scale · walks and fire exits cleared inside the bylaw clocks
Route tier — single frontagesfrom $520 / season
Driveway, walk and steps · brine pre-treat plus the storm pass
Mid-storm refresh$0.08 / sq ft
A second application where the storm outlasts the film — long events, sleet transitions
Post-storm bonded-ice recoveryfrom $340
For the lot nobody pre-treated: blended chlorides, blading and the chisel we told you about
How it goes
The storm calendar, run twice a week from November
The same sequence on every job — the only variable is your project.
T−48 hr
The watch
Two forecasts, one pavement-temperature model, and a human who has read the flats for a decade. The watch either arms the window or does not, and the log records which and why.
T−36 hr
The spray
Tank metered, nozzles set, brine down as a film on dry pavement with the surface above freezing. The application — gallons, temperature, time, address — is the first entry in the storm file your insurer can read.
Hour 0
The storm
Nothing lands on bare pavement because nothing can: the film keeps the bond off the lot. Plow runs at the contract trigger, walks hand-cleared, and the plow is clearing film instead of fighting weld.
T+2 hr
The refreeze pass
The dangerous hours are after the snow stops, when meltwater runs to the shade and freezes. The refreeze pass blades the drains and treats the shade while it is still water.
T+24 hr
The file closes
Timestamped photos, gallons, temperatures and pass times in one document to your inbox. When the slip claim arrives in March, the file already exists — which is the entire product.
The logbook says
The flats, last season
Glassmoor & the flats, 2025 — 2026
Lots that never bonded
Six storm files from last season, photographed at the refreeze pass. Black at three in the afternoon is the product; everything else is the evidence.
Our plaza spent five winters arguing about the plow contractor while the actual problem was the two sleet events a season where ice welded itself down before anyone arrived. Coldfront reframed the whole thing: brine on the dry pavement two days ahead, a plow that then actually cleared to black, and a log with gallons and temperatures in it. The slip claim from the neighbouring lot — same storm, no pre-treat — settled for more than our entire season contract. Our insurer asked for their name. So would I.
Asked at every October walk
Brine questions
The five every lot owner asks before the first spray.
What happens if it rains after you spray?
Heavy rain washes the film off, which is why the window check exists — if the forecast shows rain between the spray and the snow, we hold and re-arm closer to the storm. Two storms last season slipped past the window entirely and the log says so; both got a mid-storm refresh and a plow that worked harder. The honest log is the product.
Is brine harder on concrete than rock salt?
Material for material it is the same chemistry, and brine uses far less of it — a fraction of the chloride tonnage, applied before the storm instead of scattered after. Less chloride in the joints and the lawn edge, none of the granular pile the plow throws into the beds. On poor concrete either salt is bad; we flag it at the October walk and treat to the joint line.
Why 23.3 percent exactly?
That is the eutectic point of sodium chloride in water — the concentration at which the brine resists freezing hardest, around minus six Fahrenheit. Stronger is not tougher; the mixture actually freezes easier past the point. The tank is metered and the log carries the salinity reading, because “we sprayed” means nothing and 23.3% at 14:40 means everything.
Do you still plow during the storm?
Yes — brine changes what the plow finds, not whether one comes. Route contracts plow at the trigger depth, hand-clear the walks, and finish with the refreeze pass; the brine is why those passes run quick and black instead of slow and grey. The tiers on the card price the whole system, not a spray-and-hope.
Can you take over mid-season?
Yes, and it is usually a bonded-ice recovery that introduces us: we chip the weld, blade the drains, and the lot goes on the route from the next watch onward. Mid-season starts are priced pro-rata off the October measurements, and the storm files start immediately — the calendar does not care when you joined, only whether you were sprayed.
The October walks run the last two weeks of the month — the route fills by the first forecast · (555) 082-4469 · brine@coldfrontice.example
Get the lot on the calendar
Tell us the lot, the surface and what last February was like. The October walk measures everything, fixes the tier price for the season, and the first watch arms in November. Pre-treat alone from $0.11 the square foot; bonded-ice recovery from $340 — the calendar decides which one you need. brine@coldfrontice.example