UK window tint law: a practical guide

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UK window tint law: a practical guide

Vehicle tinting is not simply a matter of choosing a shade. The glass and film are assessed together, and front glazing has minimum light-transmission requirements. This guide summarises the rules; check current government guidance and ask for a suitability assessment before work begins.

The main limits

For vehicles first used on or after 1 April 1985, the windscreen must let at least 75% of light through and the front side windows must let at least 70% through. For vehicles first used before that date, the stated minimum for the windscreen and front side windows is 70%.

Why the glass matters as well

The measurement concerns the combined glass and film. A film that appears light in isolation may still be unsuitable when fitted to glass that already has some tint.

What about the rear windows?

The front-window limits are the part most often relevant to an installation. Rear passenger windows and the rear windscreen do not have the same stated light-transmission limits, although visibility, vehicle design and safe driving still matter. A professional installer should discuss the intended windows rather than assume every pane can take the same film.

Before booking

Tell the installer the vehicle make, model and year.
Say whether any film is already fitted and needs removal.
Ask which windows and film specification are proposed.
Keep the product and installation details for your records.

Get a quote

Guardian Tints offers mobile car window tinting across London, Kent and Surrey. Send the vehicle details for a quote and suitability discussion.

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Call 07799 626620 or use WhatsApp for a quote across London, Kent or Surrey.

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