uPVC vs Aluminium vs Wood Windows: Which Is Best?

📅 Updated April 2026 · ⏱ Full guide in progress · ✍️ Findfitter Team

The #1 decision that affects the cost, appearance, and lifespan of your new windows is the frame material. Here’s the short version — our full comparison guide is on the way.

uPVC (80% of UK installs)

£450–£900 per window installed. Affordable, thermally efficient, maintenance-free. Lasts 25–35 years. Main downside: can look plasticky on period properties. The default choice for most modern UK homes.

Aluminium (modern / minimalist)

£650–£1,200 per window installed. Slimmer sightlines, stronger, better for large pane designs. Lasts 30–45 years. Slightly worse thermal performance than premium uPVC unless you pick a thermal-break aluminium frame. Premium choice for modern extensions and contemporary builds.

Wood (conservation areas / period homes)

£700–£1,500 per window installed (softwood to hardwood). Often the only option in conservation areas and listed buildings. Hardwood lasts 40+ years with periodic repainting. Softwood shorter lifespan (15–25 years) but cheaper. Highest aesthetic authenticity for period properties.

Composite (wood inside + aluminium outside)

£900–£1,800 per window installed. Best-of-both-worlds. Premium thermal performance, 50+ year lifespan, near-zero maintenance. Mostly chosen for high-spec new builds and extensions.

Which should you pick?

• Budget-focused or standard modern home → uPVC
• Modern home, want slim frames or big panes → aluminium
• Period home or conservation area → hardwood
• High-end new build or forever home → composite

Full side-by-side comparison with thermal ratings, security, planning considerations, and resale impact is coming soon. In the meantime, get quotes from installers who offer multiple materials:

---

Sources & references

This article draws on data and guidance from the following authoritative UK sources:

• British Fenestration Rating Council — window energy rating scale (A++ to E)
• GGF — consumer advice — UK glazing product specifications
• Energy Saving Trust — windows — thermal performance data for different materials
• FENSA — UK building regulation standards for installations