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Practical Ventanas Cortizo guide

Windows for old houses and renovations

What to check in older homes: irregular openings, appearance, insulation and installation work.

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Direct answer: the existing opening is the key

In older homes, the opening, wall condition, trims and ventilation can be as important as the new window itself.

Irregular openings

Measure in several points and expect finishing work. Uneven openings can affect airtightness and appearance.

Preserving character

Colour, profile shape, divisions and opening type should respect the existing façade and interior style.

Ventilation and condensation

More airtight windows can change ventilation habits. Condensation may appear if indoor humidity is not controlled.

Common mistakes

Ignoring the opening condition.

Forgetting ventilation.

Choosing a style that clashes with the façade.

Leaving shutters and trims undefined.

Practical recommendation

Ask for a complete assessment: window, glass, shutter, opening, finishing and ventilation.

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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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