With energy prices still high in 2025, more UK homeowners are looking for ways to cut heat loss and lower their carbon footprint. Upgrading to high-performance glazing is one of the most effective ways to do both – but should you choose double glazing vs triple glazing?
At Burgess Windows & Doors, we supply and install an extensive range of aluminium, composite, timber-aluminium, and timber-alternative systems, offering both double and triple-glazed options from leading brands including Origin, Aluco, Solarlux, Rationel, Internorm, Residence Collection, and Evolution.
Each is designed to deliver lasting performance, refined design, and outstanding energy efficiency.
Both systems use multiple panes of glass separated by a gas-filled cavity to insulate your home. The difference lies in the number of panes:
| Type | Glass Layers | Typical U-Value (lower = better) | Best For |
| Double Glazing | 2 | 1.2 – 1.4 W/m²K | Most modern homes |
| Triple Glazing | 3 | 0.7 – 1.0 W/m²K | Ultra-efficient or Passivhaus homes |
That extra pane enhances insulation, reduces condensation and outside noise, and keeps rooms at a more stable temperature year-round.
According to the Energy Saving Trust, heating makes up the biggest proportion of energy bills in UK homes. With fuel costs still well above pre-2021 levels, efficient glazing can make a tangible difference.
Although triple glazing costs more initially, the long-term savings on heating – along with improved comfort – often justify the investment, particularly in well-insulated homes.
Each project is different, and Burgess offers systems for every home style and specification:
✔ Contemporary homes and extensions
Origin, Aluco, and Solarlux aluminium systems combine strength, slim profiles, and contemporary aesthetics with exceptional energy performance. Whether you’re looking for modern windows, bifolding doors, or large-format sliding systems, these designs can be specified with double or triple glazing to achieve outstanding thermal and acoustic results.
✔ Low-energy and Passivhaus projects
Internorm composite windows reach U-values as low as 0.6 W/m²K, offering cutting-edge insulation for airtight, ultra-efficient builds.
✔ Sustainable family homes
Rationel’s timber-aluminium systems combine sustainably sourced timber with weather-resistant aluminium cladding, delivering excellent insulation, durability, and contemporary Scandinavian design – suitable for a wide range of modern family homes looking to reduce energy use.
✔ Heritage and period properties
For traditional or conservation settings, Residence Collection and Evolution timber-alternative windows replicate the look of timber while offering modern performance. Available in double or triple glazing, they provide classic styling without ongoing maintenance.
Upgrading to modern glazing benefits both your home and the planet:
By investing in high-performance windows and doors, you’ll enjoy year-round comfort while contributing to a more sustainable future.
If you’re looking for strong performance and value, double glazing remains ideal for most homes.
For maximum efficiency, sound reduction, and sustainability, triple glazing offers the best overall results.
Whether your priority is aesthetics, heritage detail, or cutting-edge performance, the expert team at Burgess Windows & Doors will guide you to the right solution across our full range of aluminium, composite, timber-aluminium, and timber-alternative systems.
If you’re still deciding between double glazing vs triple glazing, our team can help you choose the most efficient option for your home.
Book your consultation
or visit our Buckingham showroom to explore our complete range in person.
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