Cleaning
Stone floor degreasing for engine oil and cooking oil on granite
Granite floors around malls, plazas, pavements, driveways, loading bays and parking spaces get large black oil stains from dripping vehicles, cooking oil and dirty water. Once oil soaks into the stone, ordinary rinsing struggles to remove it. Shane Services chooses the method for the stone and the stain, starting with a small test.
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Service area: Hong Kong only (Hong Kong Island, Kowloon, New Territories)
Questions first? Ask on WhatsApp
Where it's used
Around malls and plazas, estate pavements and driveways, parking spaces and loading bays, restaurant back lanes, building entrances and lobbies with granite or other stone floors. For large areas or widespread staining, we suggest sending photos for assessment first.
Common sources of oil
Engine oil dripping from vehicles, cooking oil in restaurant back lanes, oil left by demolition or works, and black grime built up over time. Fresh oil is easier to treat; old oil has soaked in deeper and needs more steps.
Why assess the stone first?
Granite is durable, but its roughness, whether it's polished, and whether it has a seal or protective coating all affect the method. Marble and similar stone is sensitive to acidic cleaners, and the wrong product can etch the surface. We test in a less visible spot first, then decide on the method.
How it works
We usually clear surface debris and loose dirt first, then use a dedicated degreaser or hot water depending on the stain, together with scrubbing or machine cleaning, then remove the dirty water and let the floor air-dry. Outdoors, we arrange dirty water handling according to the site's drainage.
Limits
Surface and newer oil stains usually improve noticeably; old oil that has soaked deep into the stone can be lightened but may not disappear completely. We explain the expected result when assessing, and treatment may need several rounds.
What affects the quote
The area, type of stone, how bad and how deep the oil is, whether several rounds are needed, water and drainage on site, height or working position, and the time of the work.
FAQ
Can large oil stains on outdoor stone be removed?▾
It depends on the type of oil, how deep it has soaked and the stone. Surface stains usually improve noticeably; deep old stains can be lightened but may not come out completely.
Isn't a pressure washer enough?▾
Not always. Water alone struggles with oil that has soaked into stone; it usually needs a dedicated degreaser, with attention to drainage and dirty water handling.
Can acidic cleaners be used on marble?▾
Not recommended. Acidic products can etch marble, so the method must suit the stone.
Will the floor lose its shine after degreasing?▾
With the right method it generally keeps its original condition. If the surface was already worn, that may be more visible after cleaning, and polishing or care would need separate assessment.
What should I provide before quoting?▾
Close-up and wide photos of the stains, the type of stone (if known), the rough area and how long the stains have been there all help us assess.