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.

Compare injection, drainage, ventilation and wall drying devices by purpose, installation and the additional work included.

Understand rising damp, the observations worth recording and the checks to make before choosing a treatment for damp walls.

Explore ATG LC15 and ATG LC30 wall-drying devices: geomagnetic technology, no electrical supply, and advertised coverage diameters of 15 and 30 m.