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M25 Glazing guide

Shopfront glass replacement: what businesses need to know

Last updated: 28 September 2026

Keep staff and customers away from the damaged frontage, prevent public access to loose or cracked glass and contact the appropriate emergency service first if there is an active crime, fire or immediate danger. Then arrange a glazing make-safe assessment.

What should a business do immediately after shopfront glass breaks?

Large shopfront panes can be heavy and may fail differently from domestic windows. Do not ask staff to push, pull or tape unstable glass as a substitute for a proper assessment. If the frontage opens onto a pavement, use a safe internal barrier where possible and explain the public-access situation when calling a glazier.

When is temporary boarding needed?

Boarding is useful when the correct replacement panel cannot be fitted immediately and the premises would otherwise remain exposed. It provides temporary security and weather protection while the new glass is specified and manufactured.

The board should suit the opening and surrounding frame. For a shopfront, it may also need to preserve a usable entrance or work around a door, shutter or neighbouring unit. Temporary work should not create new sharp edges or project into public space. The exact fixing method depends on the existing construction.

Why does shopfront glass usually need careful measurement?

Commercial panes can be large, non-standard and subject to specific safety requirements. Accurate dimensions, thickness and glass type must be confirmed before manufacture, and handling access matters because a panel that fits the frame still has to reach the opening safely.

Photographs of the entire frontage are useful because they show doors, mullions, signs, shutters and nearby obstacles. Approximate dimensions can help the first discussion, but final manufacturing measurements should be taken accurately. If the panel is above ground level or access is restricted, additional planning may be required.

What type of glass is used in shopfronts?

The correct specification depends on the opening and relevant safety requirements. The choice should not be made from appearance alone, especially where people can collide with the glazing or where a large panel forms part of an entrance or public-facing frontage.

UK Approved Document K contains guidance on protection from impact and glazing in critical locations. See the UK Government publication Approved Document K. The actual replacement should still be specified for the individual premises rather than copied from a generic online example.

How can replacement work be planned around trading?

Tell the glazing team about opening hours, delivery restrictions, shutters, door use, pedestrian traffic and any building-management requirements. These details affect when the frontage can be measured, boarded and finally reglazed.

A make-safe visit may be separate from permanent installation. For a business, the practical plan should identify which entrance remains usable, whether the temporary board affects signage or security systems and what access is available for the replacement panel. Exact attendance times should only be promised once the business confirms service availability.

How much does shopfront glass replacement cost?

Costs vary with panel size, safety-glass specification, access, lifting or handling needs and whether boarding is required. A small door panel and a full-height commercial pane should not be represented by the same headline rate.

M25 Glazing does not publish invented averages. Pricing is confirmed from the actual opening and work required. Once the business confirms real ranges, they can be added with the assumptions stated clearly. Until then, prices depend on size, glass type and access, and the quotation should reflect the actual frontage.

What information makes the first call more useful?

Provide the business postcode, photographs of the complete frontage and damage, approximate dimensions if safe to take, and details about whether the premises can be locked and whether customers or pedestrians are passing close to the broken opening.

Mention doors, shutters, upper panels, signs or anything that limits access. This helps separate immediate safety work from the permanent replacement plan. For the service itself, use the shopfront glazing page; for temporary security, see the boarding-up page.

Related services and local pages

Use the shopfront glazing service page for commercial replacement work and the boarding-up page when the opening first needs a temporary make-safe solution.