Knowing the expected lifespan of your windows is incredibly useful, as it affects heat retention, energy use and the risk of damp-related issues around the home.
Typically, today’s double-glazed windows last around 20–25 years, although this differs depending on design and quality. Factors like the frame material, installation standard, weatherproofing capability, manufacturing quality and regular upkeep all play a part in long-term performance.
Here’s a deeper look.
Factors That Influence How Long Windows Last
Weather exposure: If not properly looked after, ongoing contact with rain, frost, humidity and temperature swings can hasten the decline of timber windows and modest-quality UPVC.
Sunlight: Strong UV rays, particularly on south-facing sides, can cause inexpensive UPVC or timber windows to fade, warp, crack or experience seal breakdown.
Build quality: Windows featuring high-end finishes, thicker frames and sophisticated glazing systems are more likely to stand the test of time.
Maintenance routine: Consistent care helps preserve appearance and performance.
Standard Lifespans for Window Materials
UPVC: Modern UPVC frames commonly last 20–35+ years. Advances in UV resistance mean the material is far less prone to becoming brittle.
Aluminium: Thermally broken aluminium windows are renowned for their longevity, typically lasting 30–45 years with very low maintenance requirements.
Timber: High-quality timber frames can outperform all other materials, lasting about 30 years, and frequently 50–60+ years when properly maintained. Hardwoods such as oak, mahogany and teak offer the best resilience.
When to Replace & How to Get More Years Out of Your Windows
Common warning signs include condensation between panes, noticeable draughts, stiff or faulty operation, mould or damp around frames, deteriorating seals and increased heating bills.
To preserve your windows for longer:
– Clean frames and glass regularly
– Lubricate locks, hinges and moving parts
– Check seals and gaskets for wear
– Keep trickle vents and drainage channels clear
– Look for early signs of moisture or mould
Hopefully, you now have a better understanding of how often windows should be replaced. If it’s prompted you to consider new ones, feel free to contact us.
LOOKING TO REPLACE YOUR WINDOWS?
We have a fantastic range to choose from so whether it’s a modern style or traditional timber effect windows – we are confident that we will have windows to improve any home to give it the finished look with elegance.
LOOKING TO REPLACE YOUR WINDOWS?
We have a fantastic range to choose from so whether it’s a modern style or traditional timber effect windows – we are confident that we will have windows to improve any home to give it the finished look with elegance.
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