Black Mould Removal

What is black mould?

Black mould is the common name for the dark-coloured mould growth that appears on walls, window frames, ceilings and skirting boards in damp properties. The most familiar type is often referred to as Stachybotrys chartarum. It thrives where moisture is present and a food source — such as wallpaper paste, paint or plaster — is available.

In most Yorkshire homes, black mould is a sign of excess moisture, usually condensation. It typically appears in corners, behind furniture, around windows and in bathrooms or kitchens — the places where warm, moist air meets cold surfaces.

Why black mould should be treated properly

Black mould is more than a cosmetic issue. Left untreated, it can damage decorations, plaster and furnishings, and prolonged exposure can affect the health of people in the property — particularly children, older people and those with existing respiratory conditions such as asthma.

Cleaning it with bleach or household sprays removes the visible growth but rarely solves the problem, because the mould's roots remain within porous materials and the underlying moisture is still present. This is why black mould so often returns in the same spot.

How a specialist treats black mould

• Identifies the moisture source — condensation, penetrating damp, rising damp or a leak.
• Contains the affected area to limit the spread of spores during treatment.
• Treats surfaces with specialist biocidal products to kill mould at root level.
• Removes and reinstates contaminated plaster, wallpaper or timber where necessary.
• Applies anti-mould treatments or specialist paints to resist future growth.
• Recommends ventilation and moisture-control improvements to address the cause.

Don't just clean it — solve it

If black mould has appeared in your property, or if it keeps coming back after cleaning, the most effective step is to request a professional assessment. A vetted local specialist can identify why it's growing and recommend a permanent solution rather than a temporary fix.

Yorkshire Mould Removal is an independent enquiry and referral service. With your permission, your information may be shared with a vetted local specialist so they can contact you regarding an assessment and quotation. We do not directly employ technicians.