6 commercial glass care mistakes worth catching early

A cloudy window can mean ordinary dirt, stubborn deposits or damage to the glass. Those problems need different responses. Before someone reaches for a stronger cleaner, check what is landing on the windows and how they are being cleaned.

Here are six mistakes worth catching at a commercial property.

1 Letting irrigation repeatedly hit the windows

If the same lower windows keep spotting, watch an irrigation cycle from a safe location. Water reaching the building is a maintenance issue worth correcting, rather than simply adding another cleaning visit.

Mineral deposits can build up between cleanings. Ask the landscape team to check the coverage and the window cleaner to assess the affected glass. Avoid assuming every spot is permanent damage. Viracon’s cleaning guidance

2 Leaving concrete or masonry runoff on glass

Concrete and mortar slurry can damage glass. Rainwater running across concrete can also carry dissolved materials onto the windows, leaving deposits that ordinary cleaning may not remove.

If masonry work is planned nearby, include glass protection and timely cleaning in the project scope. Waiting for the final clean can give contaminants more time on the surface. Vitro’s guidance on residue

3 Treating gritty construction debris like ordinary dust

A dirty cleaning pad can drag particles across the glass. After construction, a window may need a different approach from its regular maintenance wash.

Tell the cleaning contractor what work took place and where. Ask them to assess the contamination and check a small area before proceeding across the building. Viracon’s construction-cleaning recommendations

4 Reaching for a scraper when a mark will not move

More force can turn a stubborn mark into a scratch. Metal blades and scrapers are not routine glass-cleaning tools, and exposed coatings require particular care.

If normal cleaning does not remove a mark, stop and have a qualified window-cleaning professional identify the glass and the appropriate next step. Viracon’s glass-cleaning guidance

5 Choosing chemicals before identifying the glass

A cleaner suitable for one product may be unsuitable for another. Coatings, sealants and glazing materials all matter.

Have the contractor follow the relevant manufacturers’ instructions rather than improvising with a stronger product. Harsh or abrasive cleaners can create damage instead of removing it. Vitro’s cleaning recommendations

6 Ignoring sun and surface temperature

Vitro advises avoiding direct-sun cleaning of tinted and reflective glass because hot surfaces can make satisfactory cleaning difficult. In extreme cases, cold water contacting hot glass can cause breakage.

Schedule the work around the actual conditions and glass type. Streaking alone does not establish permanent damage. Vitro’s cleaning recommendations

Start with the windows that spot repeatedly or sit below recent construction. Record the location, photograph the condition safely and ask what needs to change before the next visit.

Discuss your building’s cleaning needs with M5 Services.