Oil stains are among the hardest because oil soaks into the pores. The older the stain, the deeper it goes.
First aid for a fresh stain
Cover it with an absorbent (sand, sawdust or cat litter) as soon as possible, let it work and sweep it up. Then wash with hot water and a degreaser. Don't scrub with plain water: you'll spread it.
Old stains
They need a technical degreaser that emulsifies the oil inside the pores, time to act, and washing with professional pressure and flow. Porous concrete may need several applications. Some very old stains fade a lot but not completely.
Preventing it
A premium sealer with grease protection keeps oil on the surface so it wipes off easily. Recommended for garages, warehouses and commercial kitchens.
FAQ
Do you clean warehouses and car parks?
Yes. For large areas we quote on site with a fixed price.