Window Glazing Comparisons
Side-by-side comparisons of triple glazing, double glazing, and secondary glazing for UK homes.
Featured Comparisons
Triple Glazing
Cost (£800–£1,200 per window), U-value (0.6–0.8 W/m²K), payback time (15–25 years), and when it's worth the extra cost vs double glazing.
Key data: 40–50% better insulation than double glazing, +5dB noise reduction
Secondary Glazing
Cost (£150–£400 per window professional, £30–£100 DIY), U-value (2.5–3.0 W/m²K), and why it's the only option for listed buildings.
Key data: 50–70% cheaper than replacement double glazing, better noise reduction
Triple Glazing Guides
- Triple Glazing vs Double Glazing — Direct side-by-side comparison table
- Is Triple Glazing Worth It? — Payback calculator, climate suitability
- Triple Glazing Cost — Quotes, installation, whole-house pricing
- Disadvantages of Triple Glazing — Weight, cost, light transmission
Secondary Glazing Guides
- Secondary Glazing Cost — DIY kits vs professional installation
About these comparisons
Every comparison is built from UK government data (BRE, Energy Saving Trust, Building Regulations Part L), manufacturer specifications, and independent testing (Which?, BFRC). We cite sources for every claim. We don't take paid placements or affiliate commissions.