2026: The Best Time to Replace Your Windows with Public Subsidies
If you have been thinking about replacing your windows in Granada or Malaga, 2026 is probably the best year to do it. Never before have so many public subsidies been available simultaneously for home energy efficiency improvements. The confluence of three aid programmes — the regional Plan Renove, European Next Generation Funds, and income tax deductions — creates a unique opportunity that may not be repeated for years.
The context is clear: the European Union has established that all residential buildings must reach at least letter E on their energy certificate by 2033. Windows are the weakest point in any home's insulation (responsible for 25-30% of energy losses), making their replacement the measure with the greatest impact and best return on investment. Regional, national, and European governments know this, which is precisely why they have significantly multiplied the available subsidies and simplified application procedures.
If you have been thinking about replacing your windows in Granada or Malaga, 2026 is probably the best year to do it. The confluence of the Andalusian Plan Renove, EU Next Generation Funds, and income tax deductions means you can finance between 40% and 80% of the total renovation cost.
At Tecnisun C.B. we have helped hundreds of families across Granada and Malaga provinces successfully apply for these subsidies, achieving approval rates above 95% thanks to our experience and the quality of documentation we prepare. Our dedicated subsidy advisory service is included at no additional cost with every window renovation project. In this article we explain all available options, requirements, and how to apply step by step.
Plan Renove: Andalusia's Window Replacement Programme 2026
The Plan Renove is the most direct and accessible subsidy for homeowners who want to replace old windows with high energy efficiency models.
Requirements for Plan Renove
- The property must be at least 10 years old
- New windows must meet thermal transmittance values required by the CTE (Technical Building Code)
- Installation must be carried out by a registered company Tecnisun is registered
- A before and after energy performance certificate is required
- Replaced windows must be properly removed and recycled
The 2026 call opened in January and will remain open until funds are exhausted or 31 December 2026. Funds are limited and granted strictly on a first-come, first-served basis. We strongly recommend acting quickly, as previous years have seen funds exhausted within 6-8 months of the call opening.
Climate Zones in Granada and Malaga: How They Affect Subsidies
Plan Renove subsidies set maximum thermal transmittance (Uw) values by climate zone. Your new windows must meet these values to qualify:
| Climate Zone | Main Towns | Max Uw Required | Tecnisun Recommendation |
|---|---|---|---|
| A3 (Malaga coast) | Malaga, Torremolinos, Marbella | 2.7 W/m²K | Aluminium RPT + double low-e |
| C3 (Granada city) | Granada, Armilla, Maracena | 1.8 W/m²K | STRUGAL PVC + low-e + argon |
| E1 (High mountain) | Sierra Nevada | 1.4 W/m²K | PVC + triple glazing |
All windows manufactured at Tecnisun comfortably exceed these requirements, guaranteeing subsidy eligibility.
Next Generation EU Funds for Energy Rehabilitation
The European Union's Next Generation Funds include specific lines for building energy rehabilitation. These represent the largest investment in building renovation in European history.
Programme 3 — Complete Building
Subsidies of 40% to 80% of the cost of energy improvement for the entire building. Includes windows, facades and roofs.
Programme 4 — Individual Home
Grants of up to €3,000 per measure for individual improvements, including window replacement.
Programme 5 — Technical Project
100% subsidy on the cost of the required preliminary technical report.
These funds are compatible with the Plan Renove. If processed correctly, both subsidies can be accessed simultaneously, as long as the total sum does not exceed 100% of the work cost.
Income Tax Deductions (IRPF)
Regardless of direct subsidies, energy improvement works entitle you to deductions on your income tax return (valid until 31/12/2026).
| Deduction | Savings Requirement | Maximum Base |
|---|---|---|
| 20% | Reduce heating/cooling demand by ≥7% | €5,000 |
| 40% | Reduce non-renewable primary energy consumption by ≥30% | €7,500 |
| 60% | Complete building energy rehabilitation | €5,000/year (up to €15,000 over 4 years) |
Two energy performance certificates are needed: one before and one after the renovation. At Tecnisun we manage both certificates as part of our service.
Practical Example: How Much Can You Save by Combining Subsidies?
Real case of a home in Granada with 8 old aluminium windows without thermal break:
With annual energy savings of €700, the real payback period is less than 4.5 years. If the building community also applies for Next Generation Funds, the subsidy could cover up to 80% of the cost.
Additional Subsidies for Specific Cases
| Situation | Additional Aid | Amount |
|---|---|---|
| Low income (below 2x IPREM) | Enhanced Plan Renove | 65% instead of 40% |
| Over 65 years old | Priority processing | Same amounts, faster approval |
| Building community (full building) | Next Gen Programme 3 | Up to 80% of total works |
| Listed/heritage building | Cultural heritage fund | Additional 10-20% |
| Business premises | PYME green investment aid | Up to 35% for hospitality and commerce |
How to Apply Step by Step
- Contact Tecnisun: Free technical visit to assess your current windows and measure for replacements
- Before energy certificate: We manage its issuance (essential for all subsidies). Cost: €150-250, often reimbursable.
- Subsidy applications: We prepare documentation and submit the application on your behalf
- Manufacturing and installation: Average lead time of 3-4 weeks from confirmation
- After energy certificate: Demonstrates the improvement achieved
- Justification and payment: Average collection period: 2-4 months after submission
Required Documentation
- Property owner's ID (DNI/NIE)
- Property deeds or simple registry note
- Latest income tax return (for income-based bonuses)
- Energy bills from the last 12 months (recommended)
- Building community agreement (if facade change involved)
- Before energy performance certificate
- Detailed quote from registered installer (Tecnisun provides this)
Need Help with Subsidy Paperwork?
At Tecnisun C.B. we guide you through the entire Plan Renove and Next Generation Funds process. We handle the documentation and manage your subsidy application. Over 30 years of experience and hundreds of subsidy-supported renovations completed. Request free advice or call 627 84 14 04. Check estimated costs on our price calculator.
See eligible windows →Frequently Asked Questions About Subsidies
The Plan Renove application must be submitted before starting the works. Invoices must be dated after the call opening date. Starting works before applying will disqualify you.
Are the subsidies compatible with each other?
Yes, Plan Renove and IRPF deductions are compatible. Next Generation Funds are also compatible, but the sum of direct subsidies cannot exceed 100% of the cost.
How long does processing take?
Plan Renove resolution typically takes 1-3 months. IRPF deductions are applied in the tax return for the year the works are completed. Next Generation Funds: 3-6 months.
Can I apply if I am a tenant?
Generally no — the property owner must apply. However, if the owner authorises you in writing and you pay for the works, some programmes allow tenant applications. Talk to us for specific advice on your situation.
Do PVC windows and aluminium windows both qualify?
Yes, both materials qualify as long as the new windows meet the CTE thermal transmittance requirements for your climate zone. Both STRUGAL PVC and aluminium RPT series exceed these requirements.
Why Choose Tecnisun for Subsidy-Supported Renovations
Complete paperwork management
We handle all documentation, applications, and justification on your behalf at no extra cost.
Registered manufacturer
As a registered STRUGAL manufacturer, our installations qualify for all available subsidy programmes.
Energy certificates
We manage before and after energy certificates, essential for all subsidies and tax deductions.
Advance financing
We can start works before subsidy payment arrives, so you do not have to wait months to begin your renovation.
Common Mistakes That Lose Your Subsidy
From our experience managing hundreds of applications, these are the most frequent errors that cause subsidy loss:
| Mistake | Consequence | How to Avoid |
|---|---|---|
| Starting works before applying | Automatic rejection | ALWAYS apply first, install after |
| No prior energy certificate | Cannot demonstrate improvement | Tecnisun arranges it before starting |
| Unregistered installer | Rejection at justification stage | Tecnisun is registered for Plan Renove |
| Invoice without itemised VAT | Justification rejection | Always complete invoice with VAT |
| Not properly removing old windows | Recycling requirement breach | Tecnisun removes and recycles 100% |
| Exceeding justification deadline | Loss of granted subsidy | Submit documentation within 30 days |
Cost Comparison: With and Without Subsidies
To visualise the real impact of combining subsidies, let us compare three scenarios for a home with 8 windows in Granada:
| Scenario | Gross Cost | Subsidies | Net Cost | Payback |
|---|---|---|---|---|
| No subsidy | €6,500 | €0 | €6,500 | 9-10 years |
| Plan Renove only (40%) | €6,500 | -€2,600 | €3,900 | 5-6 years |
| Plan Renove + IRPF 20% | €6,500 | -€2,600 -€780 | €3,120 | 4-5 years |
| Next Gen (community) 80% | €6,500 | -€5,200 | €1,300 | < 2 years |
As you can see, the combination of subsidies makes window renovation an almost irresistible investment. And remember: the annual energy savings of €700-1,050 continue for the 40+ year lifespan of the windows, long after payback.
Do Not Miss This Opportunity
The 2026 subsidies for window replacement in Andalusia are the most generous in history. The combination of subsidies can reduce the real cost of your new windows by 60-80%. Contact Tecnisun C.B. for complete advisory and paperwork management.
Contact us for subsidy assistance →