Aluminium and PVC Window Maintenance: 10 Practical Tips
Learn how to keep your windows in perfect condition with these 10 practical tips: cleaning, hardware lubrication, seal inspection and when to call a professional.
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Annual Plans from €99
Window Maintenance & Repair
Professional aluminium and PVC window maintenance, adjustment and repair service. Annual plans to extend the life of your joinery.
By Tecnisun C.B. · Last updated: March 2026
Resumen
Maintenance service for aluminium and PVC windows: hardware adjustment, seal replacement, glass replacement and lubrication. From 50 EUR/intervention. Annual plans with discount.
Índice de contenidos
Complete professional inspection
How We Maintain Your Windows
1
Diagnosis
We assess the condition of your windows: hardware, seals, glass and opening mechanisms, following the official maintenance sheets from STRUGAL and INSTALLUX.
2
Quote
Detailed quote with each necessary repair. We prioritise the most urgent ones.
3
Repair
We carry out repairs with original or high-quality compatible parts.
4
Maintenance Plan
We propose an annual maintenance plan to prevent future problems, in line with CTE DB-HS (building health) recommendations and STRUGAL/INSTALLUX technical manuals.
Extend the life of your joinery
Window Maintenance Services
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Hardware Adjustment
Regulation of hinges, espagnolettes and locking points. Restore the original airtight seal of your windows.
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Glass Replacement
Replacement of broken, misted or single-pane glass. Upgrade to double or triple glazing.
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Seal Replacement
Replacement of worn rubber seals and gaskets. Restore insulation and prevent air and water leaks. EPDM seals comply with the durability requirements of CTE DB-HS (building health and maintenance regulations).
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Shutter Repair
Strap, winder, broken slat and shutter motor replacement. All types of shutters.
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Annual Plans
Complete annual inspection of all your joinery. Preventive adjustments, lubrication and early problem detection.
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Window Maintenance FAQ
How much does a window repair cost?
Hardware adjustment from €45/window. Seal replacement from €25/window.
Glass replacement from €80. Depends on the type of repair.
What does the annual maintenance plan include?
Complete inspection of hardware, seals and mechanisms on all windows. Preventive adjustments, lubrication and a report with recommendations.
From €99/year. We follow STRUGAL and INSTALLUX manufacturer maintenance protocols, aligned with CTE DB-HS (building health) requirements for all brands (STRUGAL technical data sheet).
Do you repair windows of any brand?
Yes, we repair aluminium and PVC windows of any brand and age. If parts need replacing, we source compatible ones.
When should I replace my window seals?
If you notice draughts, water leaks or excessive condensation, the seals probably need replacing. We recommend inspection every 5-7 years.
Seal inspection intervals based on STRUGAL/INSTALLUX manufacturer recommendations and CTE DB-HS building health guidelines (recommendations (STRUGAL technical data sheet).
Is it worth repairing or better to replace?
If the profile structure is in good condition, repair is more economical. We honestly advise whether it is worth repairing or replacing.
Our assessment follows criteria from the official STRUGAL and INSTALLUX manufacturer technical sheets (within CTE DB-HS guidelines (according to STRUGAL maintenance manual).
Upgrade your existing joinery
Related Maintenance Services
Presupuesto gratuito
Do Your Windows Need Maintenance?
Free diagnosis and no-obligation quote. Annual plans from €99.