Dampness and Mould can be passively treated with minimum disruption.

Rising damp can be treated with a damp proofing system called Electro Osmosis.  A wire such as titanium is strung along and into a wall then subjected to a low voltage charge. This prevents dampness rising up a wall.  Electro Osmosis is seen as an alternative to chemical damp proofing and is easily concealed behind skirting boards.  It can also be applied to a range of wall types that are often difficult to damp proof, such as thicker walls, and those in protected and listed buildings.