Caring for Natural Stone
Through Autumn & Winter.

Here in Lancashire we know a thing or two about a proper winter. Wet, cold, and never short of a frost — it's exactly the sort of weather that tests any garden surface. The good news? Reclaimed Yorkstone has been handling it for a hundred years and more. It's tough, dense and built for this climate.

That said, a little care each autumn goes a long way. Look after your reclaimed stone flags, cobbles and setts before the cold sets in, and they'll come through winter looking every bit as good in spring. This guide walks you through exactly what to do — and, just as importantly, what to avoid.

Reclaimed Yorkstone — dense, hard-wearing and built for a Pennine winter

Why Autumn Is the Time to Act

Almost every winter stone problem starts the same way: with water. Rain and melting snow soak into the surface and the joints, and when it freezes it expands — over and over across the season. Get ahead of that in autumn, while the weather's still dry enough to work, and you head off the trouble before it starts.

Here's the short version of what a good autumn once-over looks like.

Start With a Good Autumn Clean

The single best thing you can do is keep fallen leaves cleared. Left to sit, they trap moisture against the stone, leach out tannins that stain, and rot down into the perfect food for moss and algae. A quick sweep every week or two through October and November makes an enormous difference — and it keeps the surface from turning slippery underfoot.

Once the leaves are dealt with, give the stone a proper clean while there's still a dry spell to work in:

• Brush off any loose moss and dirt with a stiff broom.
• Wash the surface down with plain water, or a pH-neutral stone cleaner for stubborn grime.
• For moss and algae, use a stone-safe patio cleaner or algaecide and follow the instructions on the tub.
• Rinse thoroughly and let it dry.

What to steer clear of

Acidic patio cleaners and brick acid can etch the surface and discolour the stone, and they'll attack lime mortar joints too. Neat bleach can bleach the colour out of the stone and harm nearby plants. And while a pressure washer is handy, keep it on a wide fan at moderate pressure and well back from the surface — held too close, it erodes the riven face of Yorkstone and blasts the jointing out from between your flags, which only lets more water in over winter.

Check Your Pointing Before the Frost

Your pointing — the mortar between flags, setts and in stone walls — is the first line of defence against winter. Once it starts to crack or crumble, water gets in behind and below the stone, and that's where freeze-thaw does its damage.

Walk the patio and paths on a dry day and look for loose, missing or crumbling joints. Rake out anything failing and repoint it before the cold arrives. On older reclaimed stone and traditional walls, a lime-based mortar is usually the right choice — it flexes with the stone and lets it breathe, rather than trapping moisture the way a hard cement mix can. If you're unsure, we're always happy to advise.

Sort Your Drainage

Standing water is the enemy. Where water pools and can't drain away, it sits, soaks in and freezes — and repeated freezing is what eventually lifts and cracks a surface. Reclaimed Yorkstone itself is dense and copes well, but no stone likes sitting in a puddle all winter.

Before winter, clear any drainage channels, gullies and gaps of leaves and silt so water runs off freely. If you've noticed a spot that always pools after rain, autumn is the time to look at the falls and get it sorted while the ground's workable.

Frost and Freeze-Thaw, Explained

It's worth understanding what you're actually protecting against. Water finds its way into pores and joints, and when it freezes it expands by roughly a tenth of its volume. Do that dozens of times across a winter and, on a vulnerable surface, it slowly works stone and mortar apart — a process called freeze-thaw.

The reassuring part: reclaimed Yorkstone is one of the most frost-resistant materials you can lay. It's a dense, tightly grained sandstone that has already survived a century of Pennine winters. Damage, when it happens, nearly always comes down to trapped water — poor drainage, failed pointing, or a surface sealed while damp — rather than the cold itself. Keep water moving and your joints sound, and you've won most of the battle.

Gritting, De-Icing and Clearing Snow

When the ice comes, reach for the right kit. Ordinary rock salt is best avoided on natural stone — over time it can attack the mortar joints and contribute to salt staining. For grip, a scatter of sharp sand or grit does the job without any of the risk. If you do need something that actually melts ice, choose a de-icer labelled as safe for natural stone and block paving, use it sparingly, and give the area a rinse come spring.

When clearing snow, use a plastic or rubber-edged shovel rather than a metal one — a metal blade can chip and scratch the surface, especially on riven flags and rounded cobbles. Clear it before it gets walked in and compacted to ice, and you'll keep both the stone and yourself on the safe side.

Cobbles, Setts and Stone Walls

The same principles apply across everything in the yard. For cobbles and setts on drives and paths, keep the joints clear of weeds and debris and top up any loose jointing before winter, so water drains through cleanly rather than sitting on top.

For walling and building stone, pay attention to the top of the wall. Coping and capping stones take the brunt of the weather, so check they're sound and that the pointing beneath them hasn't failed — that's the most common way water gets into a wall, freezes, and pushes the stonework apart. A little repointing in autumn saves a much bigger repair later.

To Seal or Not to Seal?

This one comes down to preference. Plenty of people leave reclaimed Yorkstone completely unsealed, and it's perfectly happy that way — it keeps its natural, breathable character and weathers beautifully. Sealing isn't required for the stone to survive winter.

If you'd like a little extra resistance to stains and water, a breathable impregnating sealer is the one to use — it soaks in rather than forming a film on top, so the stone can still breathe. Apply it to clean, dry stone during a dry spell in early autumn. The one golden rule: never seal damp stone. Trap moisture inside and you'll make freeze-thaw worse, not better.

Built for a Lancashire Winter

Don't let any of this put you off — reclaimed stone is about the lowest-maintenance surface you can have. It's already proved itself through more winters than any of us will see. A clear-up in autumn, sound pointing, decent drainage and a bit of common sense with the salt and the snow shovel, and your reclaimed Yorkstone will look after itself for another hundred years.

Need to replace a cracked flag, repoint a wall, or match some stone for a repair before winter? Pop down to the yard at Moorfield Way, Accrington, BB5 5TX, give us a ring on 01254 233227, or email info@steptoesyard.co.uk — we'll help you find the right match.