Wall damp treatment

Wall damp treatment — Lesotho

A damp wall damages finishes, worsens indoor air and encourages mould. Moisture can rise from the ground, come from outside through the facade or result from condensation in the room: each cause needs a different treatment. On Helplease, you describe your needs and the workers offering this service in Lesotho are notified of your request.

What the service covers

• rising damp at the base of walls;
• penetrating damp through the facade or a buried wall;
• condensation and mould in poorly ventilated rooms;
• efflorescence and damaged plaster;
• replastering and finishing after treatment.

Depending on the diagnosis and what you agree with the worker, the job can include moisture readings, removing damaged plaster, treatment suited to the cause, breathable or water-repellent render and finishing.

Key points

Diagnosis first

Repainting a damp wall solves nothing: you must first identify whether water comes from the ground, outside, a leak or condensation.

Ventilation

In many cases, better ventilation greatly reduces condensation; an extractor fan or vent can complement treatment.

What affects the price

• affected wall area;
• identified cause and chosen treatment;
• removing and redoing plaster;
• finishes;
• access and furniture to move.

The rate is agreed with the worker based on these elements.

Frequently asked questions

Is anti-damp paint enough?

Rarely on its own: it hides the symptom if the cause is not treated.

How long does the wall take to dry?

It depends on wall thickness and cause; full drying can take time.

Is mould dealt with?

Yes, cleaning affected areas is part of the work, together with correcting the cause.

What information should I give?

Location, height of marks, season when it worsens, floor, room ventilation and wall type.