Window condensation can be eliminated and prevented using a single kitchen cupboard essential: washing-up liquid. The method, shared by cleaning expert Lynsey Crombie, known as the 'Queen of Clean', offers an inexpensive alternative to dehumidifiers or window vacuums.
Condensation develops when water vapour meets an extremely cold surface, causing droplets to appear. Washing-up liquid reduces water's surface tension and creates a protective barrier on the glass.
How to eliminate window condensation
A minimal quantity of washing-up liquid leaves behind a thin invisible film which prevents droplets from adhering to the glass surface and accumulating. Lynsey explained: "Pop a tiny amount [of washing up liquid] onto a dry microfibre cloth and rub all over the glass pane, you won't get smears as you are using the tiniest amount. This creates a barrier and prevents condensation. This is such a brilliant old-school tip that works so well."
Left untreated, condensation on windows creates excessive dampness and humidity within a room, resulting in a colder environment and ultimately leading to mould growth. Mould poses health risks, proves challenging to remove and damages walls, while the excess moisture forces heating systems to work considerably harder, driving up energy costs.
How to stop window condensation forming
The most effective method to prevent window condensation becoming problematic is to avoid allowing moisture or humidity to accumulate indoors. Ensure rooms are well-ventilated when drying laundry and avoid placing damp garments on radiators, as this ranks among the primary culprits for condensation.
Lynsey advised: "Dry clothes outdoors or in a room with good ventilation, open a window slightly, turn off the radiator and place your drying rack in front of a bright window to help dry faster. Close the door to this room whilst the window is open." She added: "Alternatively look at heated clothes dryers. This has become more common due to the cost of using tumble dryers."
Windows should also be cracked open slightly while cooking or following a shower, as the resulting steam will trigger dampness and window condensation during this season.
