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Practical guides, IDAE data and verified advice on the CAE programme, thermal insulation and energy efficiency in Castile and León and across Spain.

Guide

Attic insulation grants 2026: full guide to Spain's CAE programme

Updated overview: CAE, NextGenerationEU and IRPF tax deductions.

21 MAY 2026
Castile and León

€1 attic insulation in Castile and León: how does it really work?

Conditions, steps, guarantees and warning signs before signing.

15 MAY 2026
Savings

How much do you really save with roof insulation? Real data from Spain

Official IDAE figures and concrete cases in Castile and León.

10 MAY 2026
Materials

Mineral wool, cellulose, polyurethane: which insulation for your attic?

Technical comparison of the three main insulation families.

5 MAY 2026
Guide

The Spanish CAE Program Explained Clearly

Legal framework, financing and comparison with French scheme.

28 APRIL 2026
Technique

Blown-in or sprayed insulation: which technique should you choose?

Advantages, limits and use cases of each approach.

22 APRIL 2026
Efficiency

Spanish energy efficiency certificate: how to improve your rating

Rating grid, mandatory steps and works that move the letter up.

15 APRIL 2026
Savings

Heating in Castile and León: reduce the bill without giving up comfort

Priority insulation, system choice and simple gestures.

8 APRIL 2026
Advice

Scams and dubious installers: how to choose a reliable CAE operator

Abusive practices observed and signals of a serious operator.

1 APRIL 2026
Heritage

Inherited a house in a Castilian village: is insulating worth it?

Return-on-investment analysis for a rural inherited home.

25 MARCH 2026

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