Faded, scratched or peeling foil on your window frames can be renewed yourself with self-adhesive repair foil – without replacing the windows. This guide shows you step by step how to wrap window frames and uPVC windows with foil – outside and inside, aluminium profiles too – using RENOLIT foil and Continental foil: from preparation and bubble-free application to a clean edge.
Updated: October 2026 · Guide by makopan GmbH
The video shows the key steps – from positioning the foil to trimming the edges.
Compare the desired decor with the existing window frame foil beforehand – shade, grain and gloss level. If you're unsure about the shade, order a foil sample for €0.99 or a colour fan.
This step is not needed for elements that have not been foiled before.
The adhesive is repositionable and reaches its final adhesion after 24 hours.
Wrapping is worthwhile if the windows are technically sound but no longer look good – inside or 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 hardware or broken profiles must be repaired first. Smooth out deep notches and unevenness beforehand, otherwise they will show through the foil.
Usually caused by residues, unevenness or foil texture left on the surface. Sand the surface smooth and clean it thoroughly beforehand, and press the foil on from the inside out.
The edge was not warmed or not trimmed flush. Warm the edges slightly, fold the foil over and trim it neatly with the utility knife.
Below 15 °C the adhesive bonds less well. Warm the surface and foil to 30–40 °C with the heat gun and allow 24 hours for final adhesion.
The foil is cut to length by the metre in the right width – from 3 or 5 metres depending on the width. You'll find the tools under accessories.
Measure the developed width of the profile – i.e. the area the foil covers including the wrap-around, not just the visible face – and add up the lengths of all profile sides. Add a generous allowance for corners, overlap and offcuts.
Window 1.23 × 1.48 m: outer frame approx. 5.4 m plus sash approx. 5 m – around 11 linear metres including offcuts. What that costs, DIY or done by a professional, is worked out in our guide to the cost of wrapping window frames.
We don't offer a wrapping service ourselves, but we know installers who apply our foils professionally. Tell us where your property is – we'll gladly name an installer near you. What costs to expect is explained in our guide to the cost of wrapping window frames.
Yes, if the windows are technically sound and only the surface has yellowed, faded or been scratched. The material costs only a fraction of a new window. Exactly how much is worked out in our guide to the cost of wrapping window frames.
Yes. The foil is applied directly to the installed frames; the window stays in place. What matters is a smooth, clean surface; 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 in the window industry. Outside, it's best to work in dry weather and not in direct sunlight. More about self-adhesive exterior foil.
Yes. The self-adhesive window frame foil is pressed onto the profile contour with a squeegee or felt and is suitable for DIYers too. What matters is a smooth, clean surface and the right temperature.
Yes, if the old foil is intact. However, its surface texture must be removed first so that no air is trapped – otherwise bubbles will form in sunlight.
Ideally between 15 and 35 °C. Below 15 °C, the surface and foil must be warmed more with the heat 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 allowed to air-dry before the foil is applied.
Yes. The foil adheres to smooth, painted metal surfaces as well as to uPVC – including front doors, window sills and garage doors. Everything about the foil, costs and process for doors is in our guide on how to wrap a front door.
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. Suitability for the respective application must be checked by the user on their own responsibility. We accept no liability for application outside our control.
Mr Makowski
Email: info@makopan.de
Phone: +49 2942 5808224
Phone advice is available in German, English and Polish.
Over 250 self-adhesive decor foils from RENOLIT and Continental – plus squeegees, cutters and cleaner. Overview: foil for window frames.
