Household dampness is the presence of unwanted moisture in the home, either the result of moisture in the form of rain from outside or condensation from within the building itself.


A high proportion of damp problems in homes are caused by rain penetration, condensation or rising damp coming up from the building foundations.

Rising damp only happens at ground floor levels as the moisture drawn up the wall comes from the soil in the ground. Decaying skirting boards, crumbling plaster and tide marks on walls all identify a possible problem with rising damp.

Rising damp can be difficult to prevent. Although it is normally found in older properties, as homes built from 1875 onwards have been built with Damp Proofing Course. it can however occur in modern homes.

What will help in the prevention of rising damp?

Check the moisture levels in the walls every six months using an electronic moisture meter that can be obtained from most DIY shops. Dig away any soil that is resting directly against the property to leave a gap and prevent moisture build-up.

Rising damp is easy to spot but it is often confused with condensation damp. Condensation damp is easier to remedy and not as expensive to fix.

What is penetrating damp?

Penetrating damp is caused by water entering through walls, floors and ceilings, causing external construction damage to guttering, rendering and wall joints. It could be the result of a burst pipe or a problem with plumbing. Damage to plastering, decaying timber and watermarks on masonry all indicate a potential problem with penetrating damp.

The signs of condensation damp.

The signs of condensation damp in your home include streaming windows and walls, the discolouration of window panes and mould growth on walls. Poor or inadequate ventilation is the main cause of condensation damp. Prolonged condensation damp can lead to the unsightly appearance of black mould on walls, doors, ceilings and around window frames.

To prevent condensation damp you can ensure that your home is correctly ventilated. If the ventilation inside the property is prohibited or restricted, your home could become vulnerable to condensation and mould. Check all of your extractor fans to see that they are in working order and not clogged up and are working efficiently. The solution can involve installation of a condensation control unit to deliver fresh, filtered air into the home from a central position.

If your home suffers from a dampness problem, whether it is rising damp, condensation damp or penetrating dam, the Homevent company can assess your problem and find a solution for it.