Practical guides
Clear answers to what our customers ask most: permits, tax deductions and how to replace windows in Spain.
Windows and heavy rain in Spain: how to stop leaks
Why water gets in through windows during a DANA storm, what to check before it hits (drain slots, sealant, shutter box) and when it is time to replace them.
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Tax deduction and grants for new windows in Spain 2026
20 % or 40 % income tax (IRPF) deduction for replacing windows in Spain in 2026: requirements, energy certificates, the 31/12/2026 deadline and grants in the Valencia region.
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Do I need permission to enclose my terrace in Spain?
Permits for glass curtains or sliding doors on a terrace in Spain: the community of owners majority (art. 17.4 LPH), the town hall licence or declaración responsable, and mistakes to avoid.
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Replacing windows in Spain: a guide for foreign homeowners
How to replace windows in your Spanish home step by step: quote, measuring, VAT, community and town hall permits, paying, owners who live abroad, and the Spanish words you will need.
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