A tide mark low on the wall
A wavy stain within about a metre of the floor, sometimes with salts and peeling paint above the skirting. Often linked to ground moisture or something bridging the damp-proof course.
Rising damp guideWHAT THE CLUES MEAN
Damp leaves clues, and each one points to a different cause. Here’s what the common signs usually mean, and where to read more about each.
Arrange a free surveyUse these as clues, not a diagnosis. The same mark can have different causes in different homes, which is what a survey sorts out.
A wavy stain within about a metre of the floor, sometimes with salts and peeling paint above the skirting. Often linked to ground moisture or something bridging the damp-proof course.
Rising damp guideDamp areas that darken in wet weather and fade when it’s dry, at any height. Usually water getting in through walls, roofs, chimneys or windows.
Penetrating damp guideMould in cold corners, behind furniture and around windows. Usually condensation, though a leak can cause it too.
Black mould guideFluffy white deposits are salts brought out as water evaporates from brick, stone or plaster. They show moisture has been moving through the wall.
A damp, earthy smell often comes before you see anything. It can point to hidden mould, damp under floors or a room that rarely gets aired.
Brown or yellow marks that bleed through paint usually mean rain getting in, a sealed flue or old soot salts.
Chimney breast guideTake dated photos and note when it gets better or worse, such as after rain, in cold weather or when the heating is off.
Look at gutters, downpipes, ground levels outside and whether extractor fans work. These cause a lot of damp.
If the cause isn’t obvious or keeps coming back, a free survey will find it before it spreads.
What a survey coversSend your postcode to confirm availability, including nearby towns and villages.
Check availabilityCarlisle, Brampton, Longtown, Wigton
Whitehaven, Workington, Maryport, Silloth, Aspatria, Egremont, Cleator Moor
Penrith, Keswick, Cockermouth
A meter gives a rough guide, but most are designed for wood and can read high on dry walls because of salts or foil-backed paper. Use it as a clue, not proof.
Condensation is one kind of damp, caused by moisture inside the home. Rising and penetrating damp come from outside. They look similar but need very different fixes.
Damage that builds up gradually is often excluded, while sudden events like a burst pipe may be covered. Check your policy.
Sooner is cheaper. Damp spreads, spoils plaster and timber and encourages mould the longer it’s left.
UK government guidance says damp and mould can affect anyone’s health, particularly children, older people and those with breathing problems.
Our damp surveys are free, with no obligation to go ahead.
YOUR HOME. A CLEARER WAY FORWARD.
Damp, ventilation or plastering. Tell us what you need and arrange a free, no-obligation survey or quotation.
