Public Grants for Replacing Your Windows: What You Should Know
If you have been thinking about replacing your windows in Granada or Malaga, it is worth finding out beforehand which public grants may be available at the time. In recent years three types of support for home energy efficiency have coexisted: regional window renovation programmes (known as "Plan Renove"), the European Next Generation funds for energy renovation, and income tax (IRPF) deductions.
The context is clear: the European Union is pushing for residential buildings to improve their energy certificates in the coming years. Windows are the weakest point in any home's insulation, so replacing them is one of the measures with the greatest impact on comfort and consumption. That is why public administrations usually include them among the eligible works.
💡First things firstGrants change with every call: amounts, percentages, requirements and deadlines. What we explain here is general guidance. Always check the calls currently open on the websites of the Junta de Andalucía, the Ministry and the Tax Agency; we advise you on your case.
In this article we explain the types of grants that usually exist, the requirements they typically ask for, and the role of the installer in the process.
Regional Window Renovation Programmes ("Plan Renove")
These are the most direct grants for homeowners who want to replace old windows with high energy efficiency models. When a call is open, they usually subsidise part of the cost of the windows and installation, with a maximum per home and sometimes better conditions for low-income households.
Usual Requirements
- A minimum age of the property
- New windows that meet the thermal transmittance values set by the call
- Installation by a company registered in the programme, when the call requires it
- An energy certificate or technical documentation before and after the works
- Proper removal and disposal of the replaced windows
⚠️ImportantMany calls require you to apply before starting the works and have limited funds granted on a first-come, first-served basis. Read the terms before signing anything.
Climate Zones in Granada and Malaga: Why They Matter
Insulation requirements (maximum Uw value of the window) depend on the climate zone of each municipality. This table is for guidance only; each call and the current CTE set the exact values:
The STRUGAL PVC and STRUGAL thermal break aluminium series we install offer comfortable Uw values for these zones. We provide their technical data sheets so you can submit them with your application.
Next Generation EU Funds for Energy Renovation
The European Next Generation funds have included specific lines for the energy renovation of homes and buildings. They usually distinguish between:
🏢
Complete Building
Works carried out by the owners' community on the building envelope: windows, facades and roofs.
🏠
Individual Home
Improvements inside a specific home, such as window replacement.
📋
Technical Project
Support for drafting the required preliminary technical reports and projects.
✅TipSome grants are compatible with each other and others are not. Before applying, check each programme's terms to see whether you can combine them.
Income Tax Deductions (IRPF)
Besides direct grants, Spanish income tax rules have provided deductions for works that improve a home's energy efficiency. The percentage and maximum base depend on the improvement achieved (reduced heating and cooling demand, reduced primary energy consumption, or renovation of the whole building) and on when the works are carried out.
They are normally supported by two energy performance certificates, one before and one after the works, issued by a qualified technician. Check with your tax adviser whether they apply to your return.
How the Process Works, Step by Step
- Check the current call: requirements, deadlines and whether you must apply before starting.
- Request a quote: through our quote request form. The online quote is free and with no obligation; the technical home visit has a cost, which we tell you before arranging it.
- Prior energy certificate: if the grant requires it, it is issued by a certified technician.
- Application: submitted as the call specifies.
- Installation: with Tecnisun's manager on site alongside our regular professional installation team.
- Final certificate and justification: invoices, technical sheets and final certificate, within the deadline set by the call.
Documentation Usually Required
- Property owner's ID (DNI/NIE)
- Property deeds or simple registry note
- Latest income tax return (if there are income-based conditions)
- Recent energy bills (recommended)
- Building community agreement (if facade change involved)
- Quote, invoice and technical data sheets for the windows
Want to Replace Your Windows?
At Tecnisun C.B. we advise you on the most efficient solution for your home and provide the technical documentation you need for your application. Over 25 years of experience as installers. Tell us about your case in our quote request form or call 627 84 14 04.
See all windows →Frequently Asked Questions About Grants
⚠️CriticalIf the call requires you to apply before starting the works, an invoice dated before your application may disqualify you. Always check before starting.
Are the grants compatible with each other?
It depends on each programme. Some direct grants are compatible with tax deductions and others are not; each call's terms say so.
How long does processing take?
It depends on the administration and on the volume of applications in each call. It is worth bearing in mind when planning the works.
Can I apply if I am a tenant?
Generally the property owner applies, although some programmes allow other arrangements with the owner's authorisation. Check the terms of the call.
Do PVC windows and aluminium windows both qualify?
Generally yes, as long as the new windows meet the thermal transmittance values required for your climate zone. We provide the technical data sheets for the STRUGAL series we install.
Will you handle the grant application for me?
We advise you on your case and provide all the technical documentation for the windows we install (data sheets, Uw values, detailed invoice). The application is submitted by the owner or whoever they designate.
Is the quote free?
Yes. The online quote is free and with no obligation. The technical home visit has a cost, which we tell you before arranging it.
Specific Situations
Common Mistakes That Can Cost You the Grant
Beyond the Grant: What Really Matters
A grant can make the decision easier, but what you will enjoy for decades are well-chosen, well-installed windows: comfort, quiet, no more condensation and lower consumption. That is why we recommend deciding first which window your home needs, and then checking which grants you can use. See also our guide to energy savings with efficient windows.
We Advise You on Your Case
Tell us about your current windows and we will recommend the most efficient solution, with the technical documentation you need. Free, no-obligation online quote; the technical home visit has a cost, which we tell you before arranging it.
Request a quote →