As warmer weather prompts many to tackle home maintenance, specialists have warned that some popular online trends risk harming seals and window units over time.
Structural glazing firm Fluid Glass says several widely shared cleaning videos promote techniques that could lead to long-term issues, including damp and water ingress.
One method drawing particular concern is the use of pressure washers on exterior windows.
Although the results may look effective on social media, the company warns that powerful jets can force water behind frames and seals. This can result in mould, leaks and expensive repair work.
Some of the videos demonstrating the technique have attracted hundreds of thousands of views.
Another commonly promoted hack involves spraying undiluted white vinegar directly onto glass.
While often presented as a natural alternative to shop-bought cleaners, repeated use may gradually damage rubber seals and surrounding materials. Over time, this can increase the risk of draughts, condensation and leaks.
The warning may be especially relevant in Swindon’s newer housing developments, including Wichelstowe, Badbury Park, Tadpole Garden Village and the New Eastern Villages.
Modern double-glazed windows in these areas rely heavily on high-performance seals to maintain energy efficiency.
Fluid Glass estimates that resealing a single window typically costs between £125 and £180.
In properties with multiple affected windows, total repair bills could exceed £1,700 if damage is widespread.
Adam Randall, Director of Fluid Glass, said: “Many of the streaks and smears homeowners struggle with come down to the products and techniques they use. Dish soap, vinegar and other DIY solutions can leave behind residue or gradually damage seals, whereas dedicated glass cleaners are designed to evaporate cleanly.
“The safest approach is to start with a damp microfibre cloth to remove surface dirt, then apply a purpose-made glass cleaner in overlapping sections.
“For the best finish, use a squeegee in straight, top-to-bottom strokes.
“It’s also worth avoiding cleaning windows in direct sunlight, as the heat causes cleaning products to dry too quickly and leave streaks.”
The company reviewed 400 TikTok videos shared under popular cleaning-related hashtags.
It found that several of the most-viewed clips featured methods glazing professionals would advise against.
Fluid Glass recommends using a dedicated glass cleaning product instead of vinegar or washing-up liquid.
Homeowners should first remove dust with a damp microfibre cloth, then apply cleaner in overlapping sections and use a squeegee in straight strokes from top to bottom.
It also advises avoiding direct sunlight when cleaning and not using abrasive pads, blades or rough sponges on glass surfaces.
With window cleaning videos continuing to attract millions of views online, residents are being urged to think carefully before copying social media shortcuts that could ultimately prove expensive.
