Advice on damp walls

Plan wall monitoring after treatment: record the cause addressed, comparable photographs and substrate checks before replacing finishes.

Check the model, seller, invoice, instructions and warranty when comparing damp treatment devices shown with similar photographs.

Prepare plans, photographs and a timeline for a damp assessment, and clarify the report, observations and recommendations expected.

Before buying a device for a mouldy wall, distinguish indoor air moisture, incoming water and rising damp in the masonry.

If white deposits return, examine the moisture source and substrate before repeating the cleaning or applying a new finish.

Before concealing an old damp wall, review materials, previous work and water sources to plan suitable finishes.

Compare ATE and ATG for a home occupied occasionally: electricity availability, coverage and arrangements for observing the walls between visits.

Prepare the position, wall fixing, power supply and initial photographs before installing an ATE or ATG wall drying device.

Break down rising damp treatment costs into assessment, equipment, installation, monitoring and finishes before comparing offers.