Does vinegar kill mould? What works and what doesn't
Quick answer
White vinegar can kill some types of surface mould and is gentler than bleach, but it's inconsistent on heavy growth and doesn't reach roots deep in porous materials. It's fine for small, light patches; larger or embedded mould needs a dedicated treatment and the moisture source fixed.
The appeal of vinegar
White vinegar is cheap, natural and non-toxic, which makes it a popular DIY mould remedy. Its mild acidity can kill some surface moulds, and unlike bleach it doesn't just bleach the stain — so where it works, it works honestly.
Where it works — and where it doesn't
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Vinegar can handle small, light patches of surface mould on many materials. But it's inconsistent against heavier growth and certain mould types, and like any surface product it can't reach roots that have grown deep into porous plaster or wood. It also won't touch the underlying moisture feeding the problem.
How to use it
Apply undiluted white vinegar to the area, leave it for an hour, then wipe and let dry. Ventilate and wear a mask. Test on an inconspicuous spot first. Never mix vinegar with bleach.
When to go further
If the patch is larger than your hand, keeps returning, or the surface is damaged, DIY won't cut it — see dangerous or cosmetic. mould treatment handles established growth, professional mould removal deals with contaminated material, and an mould inspection finds the moisture source so it doesn't come back.
DIY not holding? book a €75 inspection and we'll sort the cause, or call +357 96 738151.
Frequently asked questions
Is vinegar or bleach better for mould?
How long should I leave vinegar on mould?
Does vinegar kill black mould?
Can I mix vinegar with anything to make it stronger?
Get a fixed quote
A €75 inspection gives you a fixed quote — no guesswork.