Question 1

How do I care for and maintain York stone?

Accepted Answer

York stone needs very little maintenance — it is extremely durable and weathers beautifully on its own, but a few simple steps keep it looking its best. When it is first laid, a clear breathable stone sealer improves grip and reduces staining, which is especially worth doing under overhanging trees or shrubs. After that, an occasional gentle wash every few months lifts dirt and keeps the surface fresh. Take care around the mortar joints — a high-pressure jet can blast out pointing and weaken the bonds, so we don’t recommend power washing dry stone walling. If you’d prefer your stone to age and darken naturally, simply leave it and let the weather do the work.

Question 2

Do I need to seal York stone, and how do I do it?

Accepted Answer

We recommend sealing York stone paving, coping and steps with a clear, breathable stone sealer — it improves grip, helps resist staining and makes everyday cleaning easier. Sealing isn’t essential, as the stone is naturally hard-wearing, but it gives extra protection in high-traffic or shaded areas. The right product and method vary by range, so each item’s recommended sealer and step-by-step process are set out in the Installation Guide on its product page. If you’re unsure which sealer suits your project, our team is happy to help by webchat, contact form or phone.

Question 3

How do I clean York stone, and what is the best York stone cleaner?

Accepted Answer

The best way to clean York stone is with warm water, a stiff brush and a pH-neutral stone cleaner — harsh acids and bleach can damage natural stone and discolour the surface, so avoid them. For most patios, a regular sweep plus an occasional gentle wash is all that’s needed to keep the stone looking fresh. If you use a pressure washer, keep it on a low setting and a sensible distance from the surface, and work carefully around the mortar joints so you don’t blast out the pointing. Always follow the cleaning guidance for your specific range, which you’ll find in the Installation Guide on the product page.

Question 4

How do I remove algae, moss and green or black stains from York stone?

Accepted Answer

To remove algae, moss and green or black growth from York stone, brush off loose debris, then apply a pH-neutral patio or stone cleaner and gently scrub the affected area before rinsing with clean water. These marks are very common on damp or shaded paving and are surface growth rather than damage to the stone itself. Avoid neat bleach or strong acids, which can bleach or etch natural stone, and take care with pressure washers near the joints. Keeping the area free of fallen leaves and improving drainage helps stop algae and moss returning.

Question 5

How often should I reseal York stone paving?

Accepted Answer

As a general guide, reseal York stone paving every two to three years, though the exact timing depends on the sealer used, the level of foot traffic and how exposed the area is. A simple test is to drop a little water on the surface — if it soaks in quickly rather than beading, it’s time to reseal. Always clean and fully dry the stone before applying a fresh coat, and follow the product’s own instructions. The recommended sealer for each range is listed in the Installation Guide on its product page, and our team can advise if you’re unsure.

Question 6

Will York stone weather, darken or go green over time?

Accepted Answer

Yes — York stone naturally weathers, mellows and darkens over time, which is part of its enduring character and why it suits both heritage and contemporary settings. In damp or shaded spots it can also develop a green tinge from algae, which is normal surface growth and easily cleaned off rather than a fault in the stone. If you love the aged look, simply let nature take its course. If you’d rather keep a lighter, cleaner finish, an occasional gentle wash and a breathable sealer will slow the weathering and make algae easier to manage.

Aftercare