Faded, scratched or peeling foil on your window frame can be renewed yourself with self-adhesive repair foil – without replacing the windows. This guide shows you step by step how to wrap uPVC windows – outside and inside, including aluminium profiles – with foil from RENOLIT and Continental: from preparation and bubble-free application to a clean edge.
The video shows the key steps – from applying the film to trimming the edges.
Before you start, compare the desired decor with the existing window frame foil – colour, grain and gloss level. If you are unsure about the colour, order a film sample for €0.99 or a colour fan.
This step is not needed for unfoiled elements.
The adhesive is repositionable and reaches final adhesion after 24 hours.
Wrapping pays off when the windows work properly but no longer look good – inside and out. Typical reasons:
It gives uPVC and aluminium frames a new surface in over 250 decors and covers yellowing, scratches and discolouration – without replacement and without building work. For wrapping window frames on the outside, use the UV-resistant, weatherproof self-adhesive exterior foil.
It does not fix functional defects. Leaking seals, warped sashes, faulty fittings or broken profiles must be repaired first. Smooth deep dents and uneven areas beforehand, otherwise they show through the foil.
Usually caused by residue, unevenness or remaining film texture. Sand the surface smooth and clean it thoroughly beforehand, and press the film on from the inside outwards.
The edge was not warmed or not trimmed flush. Warm the edges slightly, fold the film over and trim it cleanly with the utility knife.
Below 15 °C the adhesive bonds less well. Warm the surface and film to 30–40 °C with the hot air gun and allow 24 hours for final adhesion.
If you wrap the frames yourself, you only pay for the material. The price of the repair film depends on the film width and running metres and is shown with each item. Film is cut to length by the metre, from 3 or 5 metres depending on the width. Add the one-off cost of the tools from our accessories.
Measure the developed width of the profile – i.e. the area the film covers including the fold-over, not just the visible face – and add up the lengths of all profile sides. Allow generously for corners, overhang and waste.
Window 1.23 × 1.48 m: outer frame approx. 5.4 m plus sash approx. 5 m – about 11 running metres including waste. In 100 mm width (e.g. RENOLIT anthracite grey 7016 at €8.32 per metre) that is about €92 of material, in 200 mm width (€12.40 per metre) about €136. Prices vary by decor, as of 09/2026.
We do not offer a wrapping service ourselves. However, we know installers who apply our films professionally. Tell us where your property is located – we will be happy to name an installer near you.
Yes, if the windows work properly and only the surface is yellowed, faded or scratched. Material for a standard window costs about €90 to €140 depending on profile width – a fraction of a new window.
Yes. The foil is applied directly to the installed frames; the window stays in place. The surface must be smooth and clean, and any old foil texture must be removed first.
Yes. The RENOLIT and Continental foils are exterior foils, UV-resistant and weatherproof, and are also used outdoors by the window industry. Outside, work in dry weather and not in direct sunlight. More about exterior foil.
Yes. The self-adhesive window frame foil is pressed onto the profile contour with a squeegee or felt and is also suitable for DIYers. What matters is a smooth, clean surface and the right temperature.
Yes, if the old film is intact. Its surface texture must be removed first so that no air is trapped – otherwise bubbles form in sunlight.
Ideally between +15 and +45 °C. Below 15 °C, the surface and film must be warmed more with the hot air gun. Final adhesion is reached after approx. 24 hours.
We recommend the RENOLIT window frame cleaner. The surface must be free of dust, grease and silicone and must dry off before the film is applied.
Yes. The film adheres to smooth, painted metal surfaces as well as to uPVC – including front doors, window sills and garage doors.
At room temperature (18–22 °C) and 50–70 % humidity. The maximum storage time is 12 months after delivery.
Our technical information is based on internal experience and is provided as non-binding guidance. Users must check the suitability for their specific application themselves. We accept no liability for processing outside our control.
Mr Makowski
Email: info@makopan.de
Phone: +49 2942 5808224
Phone support in German, English and Polish.
Over 250 self-adhesive films from RENOLIT and Continental – plus squeegees, cutters and cleaners.
