Damp Under the Stairs: What Causes It and How to Fix It
A damp, musty under-stairs cupboard can be condensation, a slow leak, ground moisture or a blocked floor void. How to tell which, and what fixes each.
Category Damp
Mould on the Ceiling: Condensation, Cold Spots or a Leak?
Black spots on the ceiling usually mean condensation on a cold patch, but leaks look similar. How to read the pattern, check the loft and fix the cause.
Condensation on Sash Windows: How to Stop It Without Losing the Originals
Original sash windows streaming with condensation? Why it happens, when it damages the timber, and how to cut it with ventilation and secondary glazing.
Condensation in the Loft: Why Your Roof Is Wet Inside and How to Fix It
Wet felt and dripping timbers in the loft are often condensation, not a leak. How to tell the difference, why it happens and how to fix it at the source.
Mould Around New Windows? Why It Appears After Replacement and What to Do
New windows make homes more airtight, so moisture condenses on cold reveals instead. Why mould appears after replacement, what Part F says and what to do.
Patio Higher Than Your Damp Proof Course? Why It Causes Damp and How to Fix It
A patio laid at or above the damp-proof course can cause damp that looks like rising damp. The 150mm rule, how to check your wall and the realistic fixes.
High Damp Readings on Your Homebuyer Survey? What to Ask For Before You Exchange
Your homebuyer survey recorded high damp readings but the walls look dry. What the report means, what to ask the surveyor and how to use a follow-up report before exchange.
Damp Around a Bay Window? Common Causes in London Period Homes and What to Check
Damp in a Victorian or Edwardian bay window can come from the bay roof, sills, frames, junction cracks or condensation. How to narrow it down and what to check.
Damp Patches on an Unused Chimney Breast: What a London Damp Inspection Should Check
Why damp keeps coming back on a disused chimney breast in London period homes, and what a proper chimney damp inspection should check before any treatment.