Winter has a way of turning perfectly normal outdoor surfaces into surprise skating rinks.
A bit of shade, a bit of algae, a couple of frosty mornings and suddenly your path is doing its best impression of an ice rink. The good news? Most slips are preventable with a few smart habits and the right clean.
This guide covers what causes slippery patios, paths and driveways in winter and what you can do to keep your property safer.
Why outdoor surfaces get slippery in winter
It’s not just ice. In the South West (and most of the UK), the biggest culprit is often growth plus moisture.
Common causes include:
- Algae and lichen: Often looks like a green film or dark patches. Gets slick when wet.
- Moss: Holds moisture and creates a soft, slippery layer.
- Leaf mulch: Wet leaves break down into a slimy layer (especially on paving and decking).
- Shaded areas: North-facing spots dry slowly and stay damp for longer.
- Built-up grime: Dirt + moisture = less grip.
- Frost and ice: Obvious, but its worse when it forms on top of algae or moss.
The highest-risk areas (check these first)
Do a quick walkaround and look for:
- Steps and sloped paths
- The route from your car to the front door
- Side paths between houses (often shaded)
- Patio doors and the area just outside them
- Driveway edges where water collects
- Decking (especially in shade)
If you’ve ever thought “Oof, thats a bit slippy”. Winter will make it worse.
7 practical ways to reduce slips this winter
1) Keep on top of leaves (seriously)
Leaves aren’t just messy. Once they’re wet, they become a slip hazard.
- Sweep regularly (especially after windy days)
- Clear leaves from corners and edges where they collect
- Don’t forget drains and gullies standing water makes everything worse
2) Improve drainage where water pools
If water sits on a surface, it stays slippery longer and freezes faster.
- Clear blocked drains and channels
- Check downpipes aren’t overflowing onto paths
- Look for low spots where puddles form
3) Add temporary grip in problem spots
For areas you can’t fix immediately:
- Use grit/sand in icy conditions
- Consider anti-slip strips for steps
- Use outdoor mats by doors (and keep them clean)
4) Don’t blast surfaces with the wrong method
Not all cleaning is equal.
Some surfaces can be damaged by aggressive pressure washing, which can:
- Roughen or pit the surface
- Dislodge jointing sand (block paving)
- Create uneven patches that hold water
A professional approach uses the right method for the material and focuses on restoring grip without causing damage.
5) Clean the growth, not just the dirt
A quick rinse might make things look better for a week, but it wont remove the slippery layer.
Proper patio/path cleaning targets:
- Algae
- Lichen
- Moss
- Embedded grime
That’s what brings back traction and helps keep surfaces safer.
6) Watch shaded areas like a hawk
If one part of your patio is always green, it’s usually:
- Under trees
- Near fences/walls
- North-facing
These areas often need more frequent cleaning or treatment because they dry slowly.
7) Book a pre-winter clean (or a mid-winter reset)
If your patio, paths or driveway are already showing green film or dark patches, winter will only amplify the risk.
A professional clean can:
- Restore appearance
- Improve grip and safety
- Reduce future build-up
- Make ongoing maintenance easier
Quick DIY checklist (10 minutes)
Use this as a simple winter routine:
- Sweep leaves and debris weekly
- Check gutters/downpipes aren’t overflowing onto walkways
- Clear drains and gullies
- Identify the slippy spots and treat with grit when frosty
- If algae/moss is visible, plan a proper clean
Need help making your surfaces safer?
If your paths, patio, decking or driveway are looking green, slick or just plain tired, we can help get them back to a safer, cleaner finish.
Gorilla Grounds Gardens provides patio, decking and path cleaning, driveway cleaning, gutter clear and clean, and more helping keep properties looking great and working properly through winter.
Get in touch for a quote here: https://gorillasw.com/contact-us/
