uPVC vs Aluminium vs Timber Windows: Which Is Right for Your Home?

An impartial comparison of the three main window frame materials — covering performance, cost, maintenance, aesthetics, and suitability by property type. ## Overview Choosing the right frame material is one of the most important decisions when replacing windows. There is no universally best option — the right choice depends on your property type, budget, aesthetic preference, and maintenance expectations.

## Head-to-Head Comparison | Factor | uPVC | Aluminium | Timber | |---|---|---|---| | **Typical cost** | £450–£700/window | £800–£1,400/window | £700–£1,200/window | | **U-value (whole window)** | 1.2–1.4 W/m²K | 1.3–1.6 W/m²K | 1.2–1.4 W/m²K | | **Lifespan** | 20–30 years | 30–45 years | 40–60+ years (maintained) | | **Maintenance** | Minimal — occasional cleaning | Minimal — occasional cleaning | Moderate — repaint every 5–8 years | | **Sightline width** | 60–70mm | 45–55mm | 55–70mm | | **Colour range** | Wide (foils and sprayed) | Unlimited RAL colours | Any paint colour | | **Recyclability** | Recyclable (up to 10 times) | Fully recyclable | Biodegradable / repairable | | **Best for** | Budget-conscious, modern homes | Contemporary designs, large openings | Period properties, character homes | ## When to Choose uPVC - You want the lowest upfront cost with minimal ongoing maintenance - The property is modern or does not have heritage restrictions - You are replacing a large number of windows and budget is a priority - You want a reliable, proven, widely available product ## When to Choose Aluminium - You want slim sightlines and maximum glass area - The property has a contemporary architectural style - You are installing large bi-fold or sliding doors - Long-term durability is a higher priority than upfront cost - You want precise colour matching ## When to Choose Timber - The property is listed or in a conservation area (timber may be required) - You value the natural aesthetic and are prepared to maintain it - The building is a period property where timber is architecturally appropriate - You want the longest possible lifespan from a natural material ## The Composite Option Composite frames (typically timber core with aluminium cladding) combine the thermal performance and internal aesthetics of timber with the low-maintenance exterior of aluminium.

They cost 20–40% more than pure timber but eliminate the need for external repainting. ## Our Recommendation For most modern UK homes, **uPVC offers the best balance of cost, performance, and convenience**. For contemporary designs or large openings, **aluminium is the natural choice**. For period properties or where character is paramount, **timber remains the appropriate material**.

There is no wrong answer — only the right specification for your property. --- ### What to do next If you are planning windows, EvoHome Improvements can help you organise the details, compare options and, where appropriate, connect the project with suitable independent installers or specialists. EvoHome does not…