top of page

Why Is Mould Forming in Corners?

Mould forming in corners is a common issue within many properties and is often a sign of excess moisture within the indoor environment. While it may appear to be a simple surface problem, it usually indicates an underlying issue that needs to be identified correctly.

lady looking at mould on the wall

Why Mould Forms in Corners

Corners of rooms are typically colder than other wall surfaces, which makes them more susceptible to condensation. When warm, moisture laden air comes into contact with these colder areas, condensation forms, creating the ideal conditions for mould growth.

Common Signs

  • Black mould appearing in corners of walls or ceilings

  • Mould forming behind furniture or in poorly ventilated areas

  • Musty odours within the room

  • Increased mould growth during colder months

Not all mould is caused by structural damp issues. In many cases, it is linked to condensation and ventilation rather than moisture entering from outside the property.

Understanding how condensation contributes to mould growth is essential when diagnosing moisture issues. You can learn more in our condensation vs damp guide.

A professional inspection ensures the correct cause is identified and that any remedial work addresses the source of the issue rather than the symptoms.

For a full assessment of moisture issues, visit our damp inspection London page.

Professional moisture diagnosis before remedial work is undertaken.

Contact Information

Pro Master Gecko 

124 City Road

London

EC1V 2NX 

Phone:   020 3488 7512
Email:    infodampgecko@gmail.com

Operating Hours:
Monday - Friday: 9:00 AM - 18.00 PM
Saturday:    Closed 
Sunday   :    Closed

  Pro Master Gecko.  All Right Reserved ©                 Expert Damp Management & Preservation                    Company Number 10423037

Pro Master Gecko Ltd trading as Gecko Damp Proofing.

bottom of page