Finding cause of damp in downstairs toilet - Damp Proofing job in Bristol, Avon

Job description

Downstairs toilet with an two external walls
damp mouldy patches with peeling paint appearing on toilet wall
flooring does not appear to be effected
specific isolated patches that appear to be increasing in size
damp to touch, but not actively dripping or running with water
no obvious internal source located

Feedback

Feedback for SG Damp Proofing and Timber Treatment

Very happy with the service provided. Good advice given despite there being no monetary gain to Sigis, as no work needed to be done by him. Would definitely recommend this company to everyone, and will call on Sigis again if ever needed.