Diagnosis

Condensation, Rising Damp and Penetrating Damp: What’s the Difference?

The three types of damp look similar but have completely different causes, fixes and costs. Here’s how to tell them apart.

Damp and Mould in the Bedroom: Causes and What to Do

Bedrooms are one of the most common rooms for condensation and mould, often for reasons that have nothing to do with the bedroom itself.

Damp and Mould in the Bathroom: Causes and What to Do

Bathrooms generate more moisture than any other room in the house. Here’s why mould keeps coming back and what actually stops it.

Damp in a Loft or Roof Space: Causes and Warning Signs

Loft damp is easy to miss because most people rarely go up there. Left unchecked it can rot roof timbers.

Damp in a Basement or Cellar: What Causes It and What It Costs to Fix

Below-ground rooms are damp for structural reasons most other rooms aren’t. Here’s what’s actually involved in fixing one properly.

Black Mould vs Other Types of Household Mould: What’s the Difference?

Not all mould is the same colour, and colour alone doesn’t tell you how serious it is. Here’s what you’re actually looking at.

Damp and Mould in the Kitchen: Causes and What to Do

Kitchens combine cooking steam, appliance heat, and often poor ventilation. Here’s why mould shows up behind cupboards and around windows.

Damp in a Conservatory or Flat-Roofed Extension

Conservatories and flat-roofed extensions have their own damp patterns, driven by big glazed areas and roofs that are easy to get wrong.

New-Build Condensation: Why New Homes Get Damp Too

A newly built or newly plastered home can be damp for a specific, temporary reason that has nothing to do with a fault.