Best Stone Cleaner UK: Match Stone, Then the Stain
Updated: 15.10.2026
You have a limestone step, an Indian sandstone patio, or a polished kitchen top, and amazon.co.uk has mixed a floor liquid, a washer head and a pumice block into one list. The best stone cleaner UK shoppers can buy is the one that matches that stone and that mark. You check the star rating after that match. The twelve-row [stone cleaner comparison](/hub/garden-supplies/stone-cleaner) holds the listing prices and review counts, from about £6.99 to about £77.98. The Products Compared editorial team read those amazon.co.uk listings on 15 October 2026, using public UK sources, with no laboratory test.
You have a limestone step, an Indian sandstone patio, or a polished kitchen top, and amazon.co.uk has mixed a floor liquid, a washer head and a pumice block into one list.
You have a limestone step, an Indian sandstone patio, or a polished kitchen top, and amazon.co.uk has mixed a floor liquid, a washer head and a pumice block into one list. The best stone cleaner UK shoppers can buy is the one that matches that stone and that mark. You check the star rating after that match. The twelve-row stone cleaner comparison holds the listing prices and review counts, from about £6.99 to about £77.98. The Products Compared editorial team read those amazon.co.uk listings on 15 October 2026, using public UK sources, with no laboratory test.
Our top picks
| Badge | Product | Product type | Main job | Acid-free | Note | Price | Offer |
|---|---|---|---|---|---|---|---|
| Best overall |  Patio Black Spot Stone King restorer 2 L | Outdoor restorer | Algae and black lichen | Yes, on the listing | 8.6 | about £29.99 | View offer |
| Preis-Tipp |  HG HG natural stone cleaner extra strong 1 L | Stone degreaser | Grease and old polish | Not stated | 7.8 | about £11.18 | View offer |
| Alternative |  Nilfisk Nilfisk large patio cleaner | Washer patio head | Flat patio wash | Not a chemical | 8.0 | about £77.98 | View offer |
On this page
Match the cleaner to the stone and the stain
The stone and the mark rule out more bottles than any star rating. Polished marble, limestone and travertine need a pH-neutral or alkaline cleaner, because an acid etches the face. Lithofin classes those stones, plus some sandstone, some slate and concrete, as acid-sensitive. On Indian sandstone and black limestone, Pavingexpert links hydrochloric patio cleaners to orange-brown rust stains that stay in the stone. A black film, a cement haze and a worktop splash are different buys. Read the stone off the delivery note before a price filter hands you a toilet stone.
Four kinds of product in one amazon.co.uk set
The twelve listings are four purchases in one search. HG bottles are liquids for indoor stone or cement film. Stone King is a 2 litre outdoor restorer aimed at headstones and ornaments. The Nilfisk large patio cleaner is a washer head, listed to 2,000 psi, and it runs only with a compatible pressure washer. Pumice and a diamond cup wheel are abrasives. A star sort can crown a toilet stone. Stone King can still bleach plants and clothes when the listing says biodegradable. Pumice scratches honed limestone.
What to read on the bottle before you pay
Read three lines before the price: acid-free in plain words, a surface list that names your stone, and whether you dilute. Acid-free still fails when your stone is missing from the list. HG Extra Strong is a concentrate: 500 ml in 5 litres, or neat on old polish, and a diluted litre covers 25-50 m². The shine restorer is a no-rinse mop dose. A 5 litre HG Neutral Cleaner is a different model, and its dose does not transfer to this set. If the wording moves from lifting dirt to killing moss, the Health and Safety Executive treats that as plant protection. When one of the three lines is missing, leave the listing.
When to stop and get a different tool
Stop when the mark has gone past a liquid. The HG cement remover is for film, and UK buyers report that a thick, set crust needs a scraper. A diamond cup wheel on sandstone makes silica dust, which Health and Safety Executive rules take out of weekend mopping. Pumice can scratch a honed floor. Lichens on a gravestone are a churchyard decision. With no washer in the shed, the Nilfisk head cannot run.
A short path through the other pages
Open the best stone cleaner for the job once the group is clear. That page names a shortlist and who should skip it. Open the how to use a stone cleaner page for dose and patch test after the bottle is chosen. The patio page is for flags. Use the chemical versus jet wash page only if a washer is already in the shed. A qualifying purchase through a link on this page can earn a commission at no extra cost to you.
Common questions
What type of stone cleaner do I need for a UK patio?
Name the stone, then the mark. Limestone, marble, travertine and many sandstones need a pH-neutral or alkaline cleaner, because Lithofin classes them as acid-sensitive and London Stone treats vinegar and brick acid as unsafe on limestone. A black film is a different buy from cement haze. Indian sandstone and black limestone are a poor match for hydrochloric acid, which Pavingexpert links to rust stains.
Is an acid-free label enough for limestone?
Acid-free helps, and limestone still has to be named on the bottle. Lithofin groups it with marble, travertine, some sandstone, some slate and concrete, so a granite-only cleaner can be acid-free and still miss your step. London Stone wants a patch test, because a sealer can react even when the liquid is mild. If the label never mentions limestone, choose a cleaner that names it.
Which HG bottle is for cement haze, and which is for a kitchen top?
Use the cement remover on wet cement film. A sealed slate floor is a poor surface for it, and buyers report that heavy cured cement also needs a scraper. A kitchen top wants the neutral cleaner or HG Extra Strong. Extra Strong is a concentrate: 500 ml in 5 litres, or neat on old polish, and the 1 litre listing quotes 25-50 m² once diluted.
What does a high star rating on a two-review listing mean?
Five stars on two reviews decide very little. Scores in this set run from 3.7 to 5.0 and counts from 2 to 448, so a tiny sample can outrank a floor cleaner with hundreds of reviews. A toilet stone and a patio restorer are different jobs. Read the count, the surface list and the price, from about £6.99 to about £77.98 on these listings, before you treat the stars as a verdict.
How do I tell a floor cleaner from a biocide?
Read the claim on the label. A product that lifts dirt is a cleaner. A surface biocide claim is a biocidal product, and a moss-kill claim is plant protection, which the Health and Safety Executive keeps apart from a detergent. A neutral HG floor cleaner is a different purchase from a restorer that promises to remove moss. For dirt and a light film, choose the cleaner that names your stone.
Related pages
Sources
Public UK sources and manufacturer pages used for this comparison, last accessed 15 October 2026.
- London Stone — How to clean a natural stone patio (retrieved 15.10.2026)
- London Stone — How to jet wash a patio (retrieved 15.10.2026)
- Pavingexpert — Acid stains on paving (retrieved 15.10.2026)
- Historic England — Caring for monuments (retrieved 15.10.2026)
- Church of England — Churchyard wildlife and lichens (retrieved 15.10.2026)
- HSE — COPR biocide requirements (retrieved 15.10.2026)
- HSE — Cleaning products and the corrosive pictogram (retrieved 15.10.2026)
- HSE — Silica dust from scabbling or grinding (retrieved 15.10.2026)
- HG UK — Natural stone cement and grout film remover (retrieved 15.10.2026)
- HG UK — Natural stone cleaner shine restorer (retrieved 15.10.2026)
- HG UK — Natural stone cleaner extra strong (retrieved 15.10.2026)
- legislation.gov.uk — Consumer Rights Act 2015, section 9 (retrieved 15.10.2026)