Quick answers about damp

Condensation. Government health guidance names it as the most common form, and English Housing Survey surveyors found serious condensation or mould in 3% of homes in 2024, against 1% with rising damp.

It can be, but a patio or flower bed built up against the wall, a leaking downpipe or a bridged cavity can leave the same mark. This guide sets out the differences.

Because cleaning removes the mould, not the moisture feeding it. Until the wall is warmer or the air drier, it grows back. See black mould on walls.

Cavity wall insulation fitted in a wall exposed to driving rain, or installed badly, can carry water across to the inner leaf. The insulation guide explains how to tell.

No. Electrical meters show a pattern on masonry, not a moisture content, and salts can push readings up in a dry wall. Drilled samples tested by carbide or oven-drying give an actual figure.

A specialist inspects the areas flagged, tests where needed and writes up the cause and the remedy. Book a damp survey and tell us the date the report is needed by.

Ask for the Property Care Association's CSTDB (formerly CSRT) or CSDB for damp and timber, and CSSW for cellars and basements.

Yes. If the cause is a gutter, a fan or a blocked air brick, that is the recommendation.

Where rising damp is proved, chemical injection is the only retrofit method with third-party certification that BRE and SPAB point to. It does nothing for condensation or rain penetration, which is why the diagnosis comes first.

The Property Care Association's code says it may take one to twelve months or longer before impervious finishes go on. Thick, old walls are at the slow end.

Dry rot can spread across masonry to reach other timber; wet rot stays where the wood is wet. The Property Care Association says wet rots can be just as destructive. See dry rot versus wet rot.

Often, by designing to the right grade of BS 8102: Grade 3 means no water or dampness at all, with heating, ventilation and humidity control. See cellar tanking.

Not yet. It has covered social housing since 27 October 2025; the government is consulting until 18 December 2026 on extending it to private renting. The Awaab's Law guide has the detail.

Government guidance says it is totally unreasonable to blame damp and mould on lifestyle choices, because cooking, washing and drying laundry are unavoidable.

Stafford Borough Council's Housing Standards Team can advise and can serve notices on private landlords who leave damp and mould unrepaired.

Checkatrade gives £100 to £600 (prices November 2024) and MyBuilder £150 to £500. National averages, not our prices; the cost guide lists the treatments too.

Because firms often disagree about the cause. Which? advises at least three quotes and independent advice when the recommendations differ.

Whatever applies is confirmed on the phone before the visit is booked, so there is nothing unexpected on the day.