The best stone cleaners, compared.
Top pick: Bondtech toilet pumice kit Best value: HG natural stone cleaner extra strong 1 L – About £11.18 for 1 L, 4.2 from 90 ratings, and a listing coverage of 25-50 m² when diluted, for indoor grease and old polish rather than a patio wash. Updated 15.10.2026.
A stone cleaner on amazon.co.uk is not one product. This comparison mixes stone liquids, an outdoor restorer, a pressure-washer head, pumice and a diamond cup wheel, because those listings sat in the same set. You are usually mopping marble or limestone, lifting cement film, clearing sandstone, or brightening a gravestone. Quality starts with the stone and the stain, then the label: acid-free or pH-neutral on marble, limestone and sandstone, the maker's own dose, and a washer coupling that fits. HG splits film remover, extra-strong degreaser and shine restorer into different doses. Only the kitchen-top pack states a pH, which is 7.0. A 5.0 from two pumice ratings does not outrank a floor cleaner with hundreds of ratings. If you cannot name the stone, treat it as acid-sensitive. Five of them are HG liquids, and each has its own dose. The maker's dose is 500 ml in 5 L: wet the floor, leave it for five minutes, scrub, rinse, and work about 10-15 m² at a time. It does not dissolve the cement in the grout. How to choose is set out in the [stone cleaner buying guide](/hub/garden-supplies/stone-cleaner/sub/stone-cleaner-buying-guide).
A stone cleaner on amazon.co.uk is not one product. This comparison mixes stone liquids, an outdoor restorer, a pressure-washer head, pumice and a diamond cup wheel, because those listings sat in the same set.
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Personal buying guide
Question 1 of 2
What are you treating?
Bondtech's pack is 250 g of powder plus two pumice stones for £10.99. The listing is ceramic, porcelain and enamel toilets, with a 5-8 hour dwell for the powder or a 15-20 second wet scrub with the stone. Six UK reviews, inside a 5.0 from 12 ratings, say the powder shifts tough toilet stains and limescale. They do not describe a patio, a headstone or a sandstone flag. The sample is small. US reviews are not used here. No UK defect is recorded. It belongs in a bathroom comparison, not in a garden-stone one, and it is in this table only because it was in the same amazon.co.uk set.
Pros
Cons
Best for: Toilet limescale, if you can leave the powder for the listed 5-8 hours.
Less suitable: Patios, Indian sandstone, and any surface the listing does not name.
Specifications
Common questions
Is this for a stone patio?
No. The listing is a toilet-bowl limescale kit with powder and pumice stones.
How long does the listing say to leave the powder?
The listing says leave it for 5-8 hours, then rinse. For the stone, it says soak for 15-20 seconds and scrub.
Which surfaces does the listing name?
Ceramic, porcelain, enamel and plastic toilets, plus sinks and bathroom tiles.
Soyinht's 10-piece set is £7.59: six pumice stones, two handles, gloves and a 23 cm cloth. The listing covers porcelain toilets, ceramic tiles, oven racks and BBQ grills, and it tells you to stay off coated, non-stick, glass and delicate surfaces. Three UK reviews, the entire 5.0 from 3 ratings, like the spare stones and the separate handles. They also say it is still a coarse scrub and that you should test a hidden area. The cloth colour is random, which the listing already says. No broken part shows up in those three reviews. It will not restore a patio.
Pros
Cons
Best for: Toilet, oven and grill scrubbing, with a test on a hidden area first.
Less suitable: Polished stone, non-stick, glass, and outdoor flags.
Specifications
Common questions
Is it safe on non-stick?
The listing says not to use it on coated, non-stick, glass or delicate surfaces, and to test a hidden area.
Can it be used on tiles?
The listing includes ceramic tiles among suitable uses, after a test.
What is in the box?
Six pumice stones, two handles, one pair of gloves and one 23 cm cloth.
Foyan sells three handled pumice stones, about 23 cm long, for £6.99. The listing says porcelain and ceramic, used wet, and that there are no added cleaning chemicals. Both UK reviews on the listing, a 5.0 from 2 ratings, removed toilet water stains. Hard-water scale still needed effort, and the stone was coarse enough to groove a tap edge. A reviewer warned not to use it on skin. Two ratings cannot carry a garden-stone comparison. This is a toilet scrubber.
Pros
Cons
Best for: Toilet rings, kept wet, on porcelain.
Less suitable: Taps, polished stone, patios, and anyone reading a 2-rating score as a test.
Specifications
Common questions
Will it scratch ceramic?
The listing says to wet the stone and test a small area first. It claims the pumice is for suitable porcelain and ceramic.
How should you wet it?
The listing says always wet the stone before cleaning.
Is the 5.0 score from a large sample?
The listing shows 5.0 from 2 ratings.
Across 100 amazon.co.uk ratings at 4.6, this 2 L Stone King restorer is the outdoor product in the set that matches a neglected headstone or garden ornament. UK reviewers describe marble headstones that had not been cleaned for decades coming lighter, and ornaments and a stone wall changing within minutes. The listing says acid-free and no scrubbing, but you still decant it into your own sprayer because no spray head is in the box. The same reviews are blunt about the smell of chlorine or bleach, bleached clothes, and grass killed even under a sheet. One patio review only partly cleared black spots, so this is not a guaranteed lichen cure. At £29.99 it is a large bottle for the price some buyers wanted, and the cap seal is awkward to break.
Pros
Cons
Best for: You are restoring a neglected gravestone, ornament or stone wall and can keep plants and clothes out of the spray.
Less suitable: Lawns, planted borders, and a patio whose black spots have already survived one treatment.
Specifications
Common questions
Does the listing say it is acid free?
Yes. Acid-free and biodegradable are listing claims. They were not checked against a safety data sheet here.
Is it safe for plants?
UK reviews say it kills grass and plants, including when a sheet was used. Keep it off planting.
Do you scrub?
The listing says no scrubbing. Reviewers describe spraying and waiting, and several say you need your own sprayer.
This is three 500 ml bottles of HG kitchen-top cleaner, £18.31, with pH 7.0 printed on the listing. Across 123 amazon.co.uk ratings at 4.5, UK reviewers cleaned quartz in one pass and left granite shiny, often with no streaks and a light scent. The listing's named surface is marble. Tea marks and pencil on white quartz did not shift for one reviewer. It is a worktop product: the listing marks outdoor use as no. You are not buying a patio cleaner, even though the comparison set includes one. Repeat buyers show up in the UK reviews, and one review also used it on a glass lid and a gloss fridge, which is outside the stone claim.
Pros
Cons
Best for: You want a neutral everyday cleaner for a marble, granite or quartz kitchen top.
Less suitable: Indian sandstone, cement film, or any outdoor stone.
Specifications
Common questions
What pH does the listing give?
The listing states pH 7.0 and a density of 0.995 g/ml at 20°C.
Is it for marble?
The listing names marble as the specific use. UK reviews also describe granite and quartz worktops.
How many bottles are in the pack?
Three 500 ml bottles. The listing unit count is 1,500 ml.
The 5 L HG shine restorer is a mopping cleaner at £34.09, and the listing claims about 100 washes on marble, slate, quartz and sandstone. Across 110 amazon.co.uk ratings at 4.3, one UK reviewer got shine back on natural slate after oils and waxes had failed, and others used it on kitchen and bathroom stone plus porcelain in a new kitchen. A different reviewer saw no gain versus ordinary cleaner after three or four mops, and someone else said milk worked as well on marble. Black granite left streaks and residue. The listing also says it removes stains, which the mixed reviews do not support as a rule. There is no outdoor-use claim on the listing, so this is a floor bottle, not a patio treatment.
Pros
Cons
Best for: You mop natural-stone floors indoors and want a concentrated shine restorer.
Less suitable: Cement haze, black lichen, or a patio that needs a brush and a different chemical.
Specifications
Common questions
Can it be used on marble?
The listing says it is gentle on marble, slate, quartz, sandstone and other calciferous stone.
Does the listing claim stain removal?
Yes. The listing says it removes dirt, stains and marks and restores shine.
How big is the bottle?
5 litres. Listed weight 5.24 kg.
The SALI 115 mm diamond cup wheel is £15.99 and fits an angle grinder, with a 22.23 mm arbor plus 20 mm and 16 mm adapters. The listing covers concrete, granite, stone and masonry, dry or wet. The amazon.co.uk total is 4.3 from 65 ratings, but only one UK review is recorded. That reviewer says it works and also that it is unbalanced and vibrates the tool. Dust comments from outside the UK are not treated as British experience. Grinding stone throws silica dust; this is a removal tool, not a wash. Do not buy it to clean a patio.
Pros
Cons
Best for: You already grind concrete or stone and want a spare 115 mm cup wheel.
Less suitable: Anyone looking for a patio cleaner, and anyone without an angle grinder and dust control.
Specifications
Common questions
What size is it?
115 mm diameter, 22.23 mm arbor, 20 mm segment. Adapters for 20 mm and 16 mm are in the listing.
Does the listing say it needs water?
The listing says wet or dry grinding.
How many UK reviews are recorded?
One. It says the wheel works but is unbalanced and vibrates the tool. The 4.3 from 65 is the listing total.
HG's 500 ml bathroom cleaner is £7.70 and aimed at soap film and light scale on calciferous stone, marble and limestone, plus porcelain and ceramic named on the listing. Across 336 amazon.co.uk ratings at 4.2, it helped natural-stone shower tiles where an ordinary bathroom cleaner had dulled the surface, and a soft brush lifted mould on grout. Built-up limescale is the repeated miss. Black slate shower tiles left white streaks unless they were rinsed and buffed. A stone shower tray and water marks on a stone sink and bath stayed. One bottle leaked in the delivery bag. Acid content is not stated. Keep it in the bathroom.
Pros
Cons
Best for: Light soap film on bathroom stone tiles, with a rinse afterwards.
Less suitable: Heavy limescale, a patio, or cement film.
Specifications
Common questions
Will it remove soap scum?
The listing says it removes soap residue, grease and light scale from natural stone.
Is it for heavy limescale?
The listing says light limescale. UK reviews say built-up scale often remains.
Is it safe for marble on the listing?
The listing calls it a marble cleaner and says it suits most calciferous natural stone.
HG's 1 L extra-strong cleaner is £11.18 and the listing says a diluted litre covers 25-50 m². Across 90 amazon.co.uk ratings at 4.2, UK reviewers got anti-slip tiles and an untreated slate cloakroom floor cleaner, including paint splashes, once they scrubbed. Used neat, the listing is for lifting old polish and films on marble, slate and quartz. It did not remove an old seal on Chinese slate, and one buyer saw no change on a stone fireplace. Another followed the instructions on a tiled floor and saw nothing. Grease on one natural-stone slab was still there after two attempts. Treat the 25-50 m² figure as the listing's diluted coverage, not a promise on a sealed patio.
Pros
Cons
Best for: You want a concentrated indoor stone degreaser and you will scrub rather than mop and hope.
Less suitable: A sealed patio, cured cement film, or a fireplace that needs a different product.
Specifications
Common questions
Can it be used on slate?
The listing says it is gentle on slate. UK reviews are mixed: some slate improved, and an old seal on Chinese slate did not.
Does the listing mention streaks?
The listing does not state a streak result. It says dilute for mopping and use it undiluted to remove polish and films.
Is it for marble?
The listing says it is for marble, granite and other calciferous natural stone.
This is a patio head, not a bottle. The Nilfisk large cleaner is £77.98, weighs 1.85 kg, and puts two rotating jets under a skirt with a stated 2,000 psi ceiling. Across 448 amazon.co.uk ratings at 4.1, UK reviewers liked the lower splash on stone flags. One timed about 20 m² in an hour against about four hours with a lance. It needs a Nilfisk pressure washer; the listing names Premium, Excellent, Core and Compact, and some buyers found their washer was not on that list. One review left streaks on two patio sections. Tarmac with moss was weak. The 6-month warranty is short for a £78 fitting, and the head does nothing until the washer is already in the shed.
Pros
Cons
Best for: You already own a listed Nilfisk washer and want a faster, less messy pass over a large flag patio.
Less suitable: You have no pressure washer, or the job is cement film, lichen or a kitchen worktop.
Specifications
Common questions
Does it work on its own?
No. It is a patio attachment. The listing says it is for Nilfisk Premium, Excellent, Core and Compact pressure washers.
Can it be used on walls?
The listing says it can be used on vertical surfaces such as walls, fences and garage doors.
What pressure does the listing state?
The listing states a maximum pressure of 2,000 pounds per square inch.
You get six handled pumice blocks, each about 10 x 7 x 3.5 cm, for £12.59. The listing is grills, oven racks and stovetops, and it says the blocks are chemical-free. Across 22 amazon.co.uk ratings at 3.8, wet pumice lifted barbecue grease with little effort, and wire oven racks came up quickly. Handles stayed on for one reviewer working a hot grill. The blocks also break, fall apart, and wear down in a few uses. Non-stick coatings are a review warning. This does not clean a sandstone patio. It is in this table because it was in the same amazon.co.uk set.
Pros
Cons
Best for: Greasy grill bars and oven racks, used wet.
Less suitable: Patio flags, polished stone, and non-stick pans.
Specifications
Common questions
What is it made of?
The listing says natural pumice, with a plastic handle.
Can it be used on a non-stick tray?
A UK review says the blocks strip non-stick coatings. The listing does not claim they are safe on non-stick.
Is it a patio cleaner?
No. The listing and the Garden rank are for grill and oven cleaning.
The 5 L HG film remover is £57.20, listed as acid-free, and meant for cement and lime film on marble, travertine and other calciferous stone. The listing says wet the floor, leave the diluted solution for 5 minutes, scrub, then mop, and it does not dissolve the cement in the grout. Across 178 amazon.co.uk ratings at 3.7, UK reviewers who used a stiff nylon brush or a yard brush lifted cement film from Indian black limestone and cement dust from Indian sandstone. Several others saw no shift on patio slabs. One said only wet cement responds and cured stains do not. A 1:5 soak with no scrub did nothing. Cement lumps still need chipping off. At this price you are paying for film, not for a rinse-and-forget patio wash.
Pros
Cons
Best for: New paving with a cement-dust film, and you will scrub with a stiff brush.
Less suitable: Cured cement lumps, algae, or a buyer who wants a no-scrub wash.
Specifications
Common questions
Is it acid free?
The listing says it is acid free and suitable for marble, travertine, bluestone, granite and other calciferous stone.
Will it remove grout?
The listing says it removes cement and lime film from the surface and not the cement from the grouting.
How is it used?
The listing says wet the floor, apply the dissolved solution, leave it for 5 minutes, scrub, then mop.
We compared the 12 amazon.co.uk listings on this page. Scores run from 0 to 100 and are not a laboratory test: they use the star rating and rating count, whether the listing is actually a stone or patio cleaner, repeated themes in UK reviews, and result per pound on the job the listing claims. A very small rating count, a need for another machine, or UK reviews that contradict the main claim, lowers the score.
Job and stone
30%The score starts with the stain and the stone. A toilet pumice block and a floor cleaner are not ranked as the same job.
Product type match
25%Liquids, a washer head, pumice and a grinding wheel lose points when the listing is not actually a stone or patio cleaner.
UK review evidence
20%Amazon.co.uk stars and rating counts are used. A complaint that repeats lowers the score. One review from outside the UK does not.
Result per pound
15%Value is the result per pound on the job the listing claims, not the lowest sticker price.
Dose and collateral
10%Plants, clothes, joints, eyes and silica dust stay in the score, with the maker's dose and any claim UK reviews contradict.
Start with the stone and the stain, not with the word patio on the label. A labelled liquid, a washer head, pumice and a cup wheel do not answer the same job, so one star rating cannot rank the whole table. Check for an acid-free claim or a stated neutral pH on marble, limestone, travertine and Indian sandstone. Use a covered washer head only when the paving is sound and flat and the coupling matches a machine you already own.
A stone cleaner on this page means one of 12 amazon.co.uk listings, not a single product type. Five of them are HG liquids, and each has its own dose. The 5 L film remover, about £57.20 with 3.7 from 178 ratings, is for cement and lime film. The maker's dose is 500 ml in 5 L: wet the floor, leave it for five minutes, scrub, rinse, and work about 10-15 m² at a time. It does not dissolve the cement in the grout.
A 5.0 from two or three pumice ratings is not a patio result. Those listings are toilet, grill or oven scrubs. Rank them only inside that job.
The 5 L HG film remover is diluted, left for five minutes, scrubbed and rinsed. A soak with no scrub did nothing in UK reviews. Cured cement lumps still need chipping off.
The word patio does not mean the liquid is acid-free. Hydrochloric cleaners can leave iron staining on pale Indian sandstone. If the listing does not say acid-free or state a neutral pH, do not assume it.
Rank each listing only inside one job. The jobs in this set are cement or lime film, grease and old polish, a daily mop, bathroom soap film, a kitchen worktop, algae or lichen, a flat patio wash, a toilet or grill scrub, and grinding. A star rating does not make those the same purchase. Marble, limestone and travertine can etch if you use acid. Many Indian sandstones take a permanent iron stain from hydrochloric cleaner.
Choose a labelled liquid when the job is film or organic growth, and a covered washer head only for sound, flat paving on a machine the listing actually names. The HG film remover dose is 500 ml in 5 L, then scrub, five minutes and a rinse, working 10-15 m² at a time. The shine restorer is 50 ml in 5 L with no rinse, at the listing's 20 washes per litre. Extra strong is 500 ml in 5 L, or neat on old polish, with about 25-50 m² per litre when diluted. The Nilfisk head states a 2,000 psi maximum.
Three typical situations, each with a recommendation from this comparison.
You mop marble, limestone or slate and need a labelled stone liquid, not a patio biocide. The 5 L shine restorer is the mopping bottle in this set, at about £34.09. It is a poor match for cement haze, black lichen or an outdoor patio.
You have Indian sandstone or concrete flags with a cement-dust film, and you will scrub with a stiff brush. The 5 L HG film remover is listed as acid-free. It is the wrong bottle for algae or for cured cement lumps.
You are looking at a family memorial or ornament and need the conservation limit before any spray. Stone King 2 L is the outdoor restorer in this set. Keep it off lawns and clothes, and do not pressure-wash a monument.
Stone King restorer 2 L is the top pick when you are treating a neglected gravestone, ornament or stone wall and you can keep plants and clothes out of the spray. HG natural stone cleaner extra strong 1 L is the best value when you want a concentrated indoor degreaser at about £11.18 and you will scrub. A patio head, pumice and a cup wheel stay in the table so you can see they are different jobs. None of these scores is a laboratory test.
HG natural stone cleaner extra strong 1 L
About £11.18 for 1 L, 4.2 from 90 ratings, and a listing coverage of 25-50 m² when diluted, for indoor grease and old polish rather than a patio wash.
Editorial
Products Compared publishes British-English buying guides based on amazon.co.uk listings and public UK sources. We do not run a lab and we do not invent test scores.
Guides on what to look for, how to use a product, and common mistakes.
Public UK sources and manufacturer pages used for this comparison, last accessed 15 October 2026.
Expert source (DIY & tools): Lee Burkhill (Garden Ninja) (external profile) – public expert commentary used as a research source, not as a contributor to our pages.
This article contains affiliate links. If you make a qualifying purchase through one of these links, we may earn a commission at no extra cost to you. The comparison uses amazon.co.uk listings and public UK sources. It is not a laboratory test.
