Every Calgary building has the same problem from about November to April: whatever is on the roads ends up on the floor. By March, a lobby that looked fine in October has a white haze on the tile, a crust in the mats and a grey path worn into the carpet beyond them. Most of that damage can be prevented, and nearly all of it starts within a few metres of the door.
What comes in on people's boots
The City of Calgary treats roads with salt, and with a mix it calls pickle: 3 per cent salt and 97 per cent fine gravel, used when it's colder. It also uses a beet-juice and salt brine to stop ice forming. Add whatever the building's own sidewalk crew puts down, and each of these does its own damage once it's tracked inside:
- Gravel scratches. Fine gravel acts like sandpaper underfoot. It dulls hard floors and cuts at carpet fibre, worst in the first few steps inside the door.
- Salt leaves a white film. As slush dries, the salt stays behind: a haze on hard floors, a stiff patch in carpet. Mopping with plain water tends to spread it around rather than lift it.
- Some ice melters stay damp.Many sidewalk ice melters use calcium or magnesium chloride, which draw moisture out of the air, so floors can stay tacky where they've been tracked in.
- Water carries it further. Slush pools at the door, soaks the first stretch of carpet and takes the salt deeper into it.
Matting does most of the work
The cheapest floor care in a Calgary winter happens before anyone reaches the floor. Shaw's commercial carpet maintenance checklist says entrance mats should cover at least six footsteps, so soil comes off shoes before it reaches the carpet, and that more matting may be needed in bad weather. Six steps is several metres, a lot longer than the single mat many entrances have.
A matting setup that holds up through a Calgary winter usually has:
- A coarse scraper mat outside or in the vestibule, to knock off gravel and packed snow.
- A wiper mat inside, to take the moisture and fine grit the first one missed.
- Enough length between them to cover those six steps, at every entrance people actually use, including the staff door at the back.
Mats only work while they can still hold something. A mat that's soaked or packed with gravel stops catching soil and starts spreading it. In salt season, vacuum mats every visit, lift them so the floor underneath can be cleaned and dried, and swap them out when they're saturated. If you rent mats, check how often the service changes them in winter.
A salt-season routine for hard floors
- Dry first. Dust-mop or sweep up the gravel before any water goes down, or the mop drags grit across the finish.
- Use a cleaner made for salt. Ice-melt residue usually needs a product formulated to remove it, often sold as a salt neutraliser. Check that it suits the floor and its finish first.
- Do the entrance more often than the rest. The first few metres need daily attention in salt season, even if the rest of the floor is on a lighter schedule.
- Leave it dry.Leftover cleaner and dissolved salt both dry back into a film, and a wet entrance is a slip hazard. Put out wet-floor signs until it's dry.
- Scrub when the season ends. A machine scrub in spring lifts the residue that built up over the winter.
The carpet just past the mats
Carpet beyond the entrance takes whatever the mats missed. Shaw's checklist puts entrances in severe climates in its heaviest traffic category, with daily vacuuming and hot water extraction as often as monthly. Your building doesn't have to follow that exact cycle, but it's a reminder of how much harder an entrance works in a city like Calgary than the carpet in a back office.
Vacuum the first stretch of carpet every visit, treat salt marks before they dry into a crust, and book a deeper extraction clean in spring once the salt stops coming in. How often commercial carpet needs cleaning, and what it costs sets out a schedule by traffic zone.
Decide who does what
In most buildings, winter floor care is split between whoever clears the sidewalks, whoever supplies the mats and whoever does the cleaning. Write down who handles each piece, especially the entrance, so nobody assumes it's someone else's job when the first big storm arrives. If you're setting frequencies for the whole building, choosing between daily, weekly and after-hours cleaning covers the rest of the schedule.
Where we come in
Entrance and floor care through the winter is part of our commercial janitorial work, on an after-hours schedule that can step up for salt season. Stores, where the entrance is the first thing customers see, are covered by retail and storefront cleaning. Commercial cleaning in Calgary lists everything we do for buildings.
Sources
- City of Calgary, Winter Maintenance FAQ (road salt, pickle and beet brine).
- Shaw Industries (Philadelphia Commercial), Carpet Maintenance Checklist, revised June 2022 (entrance matting and cleaning frequency).