A tenant struggling with persistent window condensation has tested a common kitchen hack, reporting that washing up liquid provided a temporary improvement. Ellen Jenne, who moved into her flat in August, faced severe condensation and mould as temperatures dropped, despite using salt and cat litter to absorb moisture.
The method involves spreading washing up liquid directly onto the glass with a cloth, or mixing it with water in a spray bottle. Jenne applied the liquid liberally to her windows, buffing it in thoroughly. The theory is that the detergent reduces water surface tension, preventing droplets from forming and allowing moisture to spread evenly.
Jenne observed that the windows were clear the following morning, though small patches of condensation began to reappear later in the day. She noted that while the glass remained relatively dry, puddles still formed on the windowsill. The effect was not permanent, but she described it as a cost-effective alternative to a dehumidifier.
GLRE Glazing Refurbishment cautioned that the hack should only be used as a short-term fix, particularly on the bottom of windows where condensation accumulates most. They added that it may not completely stop condensation, especially on colder days. Jenne acknowledged that condensation and mould cannot be resolved overnight, but said the trick will suffice while she seeks a permanent solution.
