Cortizo Windows is a specialist network for aluminium and PVC windows for homes, with professional advice, an energy-saving calculator, quote request forms and a store locator.

Practical Ventanas Cortizo guide

Mistakes when replacing windows

Common window replacement mistakes and how to avoid them before accepting a quote.

Direct answer: compare complete quotes, not just prices

A quote must include window, glass, removal, installation, sealing, shutters, trims and finishes. Otherwise, the lowest price may not be the real final cost.

Not defining priorities

Noise, heat, cold, security and design require different decisions.

Ignoring glass, shutter box and installation

The frame alone does not define performance. Glass, shutter box and installation are critical.

Using the same solution everywhere

Each room may need a different balance of noise reduction, solar control, ventilation or security.

Mistakes before accepting

No technical visit.

No final measurement.

Unclear warranties.

Unclear removal and finishing.

Practical recommendation

Choose the quote that explains the full solution most clearly.

Want to apply this guide to your home?

Prepare measurements, photos and priorities. A Ventanas Cortizo showroom can help define the right solution.

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