You've discovered a floor is slippery — maybe after a near-miss, a failed slip test, or an insurer's request. The instinct is often to assume the whole floor has to come up and be replaced. In most cases, it doesn't. An anti-slip treatment can make your existing floor safe at a fraction of the cost and disruption. Here's how to make the right call.
What an anti-slip treatment actually does
Most hard floors — tiles, stone, porcelain, some vinyls — become dangerous when wet because water forms a thin film that reduces grip. An anti-slip treatment works on the microscopic texture of the surface, increasing its ability to break through that water film so the floor keeps its grip when wet.
Applied correctly to a suitable floor, a treatment can lift the surface into the "low slip potential" band (a Pendulum Test Value of 36 or above) — and it does so without changing the appearance of the floor in most cases. There is no cure time with many treatments, so the area can often go back into use quickly, and enamel bathtubs can typically be used immediately.
A well-applied treatment can remain effective for up to around three years, depending on the product, the level of foot traffic and — importantly — the cleaning regime that's maintained afterwards.
When replacement is the better option
Treatment isn't always the answer. Replacing the floor may make more sense when:
- The floor is physically failing — cracked, lifting, or badly worn.
- The surface can't hold a treatment (some materials and coatings aren't suitable).
- You're refurbishing anyway and can specify a slip-resistant floor from the outset.
For new-build and refurbishment projects, choosing a floor with proven wet slip resistance from the start is the ideal — but for the far more common situation of an existing floor that's become a hazard, treatment is usually the proportionate fix.
Cost and disruption compared
| Anti-slip treatment | Full replacement | |
|---|---|---|
| Typical cost | Lower | Higher |
| Downtime | Hours; can be out-of-hours | Days to weeks |
| Appearance | Usually unchanged | New floor |
| Waste | Minimal | Old floor removed |
| Documentation | Pendulum test + certificate | Depends on installer |
For a busy hotel lobby, restaurant kitchen or hospital corridor, the ability to treat overnight and reopen in the morning is often decisive.
The right process, whichever route you take
- Test first. A pendulum slip test establishes how slippery the floor is now, in wet and dry conditions.
- Decide. Based on the result and the floor's condition, treat or replace.
- Re-test and certify. Confirm the finished floor achieves low slip potential and get a Certificate of Conformity for your records.
That test-treat-prove loop is what turns "we think it's fine now" into documented evidence you acted responsibly.
Frequently asked questions
Will a treatment make my floor look different?
In most cases, no — treatments work on the microtexture and leave the appearance essentially unchanged. Your specialist can test a small area first.
How long will the treatment last?
Up to around three years is typical, but it depends heavily on foot traffic and cleaning. The right maintenance regime makes a big difference.
Can any floor be treated?
Most hard mineral surfaces (tile, stone, porcelain) respond well. Some materials and existing coatings aren't suitable, which is why an assessment comes first.