As temperatures drop, warm moist indoor air hits cold windows and walls — and condensation season begins. A dehumidifier is the simplest fix, protecting your home from damp and mould through autumn and winter. Here's your guide.
Why condensation gets worse now
Cooking, showering, drying clothes and even breathing add moisture to the air. In colder months that moisture condenses on cold surfaces, leading to streaming windows, musty smells and black mould. Removing the excess moisture stops it at the source.
What size do you need?
- 10–12L/day: most homes and flats.
- 16–20L/day: larger or damper houses, or serious condensation.
- A laundry mode is invaluable for drying clothes indoors without the damp.
Features to look for
- Humidistat: holds a set humidity and switches off automatically.
- Continuous drainage option so you rarely empty the tank.
- Quiet operation for living rooms and bedrooms.
Our picks
- Whole-home: the Dimplex EverDri 20L.
- Quiet & clever: the De'Longhi AriaDry — see the full dehumidifiers range, and wider air treatment.
Final thoughts
A dehumidifier sized to your home keeps condensation, damp and mould at bay all winter — and helps rooms feel warmer. Browse dehumidifiers online or ask in any of our 60+ stores.
