The thermal performance of a triple-glazed window is typically 40-50% better than a double-glazed version – reducing carbon emissions and heating bills - but costs on average only 10-15% more.

The inside pane stays 2.5-3 degrees warmer over its whole surface than a double-glazed window, giving a much more comfortable feel inside the room.

Triple glazing typically costs 10-15% more than double glazing but delivers 40-50% better thermal performance.

With proven payback through energy savings, most homeowners find the investment worthwhile. The benefits extend beyond energy bills – improved comfort, condensation prevention and noise reduction add significant quality-of-life value that's difficult to quantify financially.

There is no set lifespan for triple-glazed windows. With good care, they can last from 20 to around 50 or more years – particularly if clad externally in aluminium.

The glass in a triple-glazed window may need to be replaced sooner as its gas filling can escape over time, compromising the thermal performance of the window.

The thermal performance of our triple-glazed windows is normally 40-50% better than double-glazed equivalents.

Using our windows can contribute to a significant reduction in your home's CO2 emissions and a reduction in your heating bills. We only use FSC and PEFC certified timber and work with partner manufacturers awarded ISO 14001 qualification.

Triple glazing's benefits extend well beyond keeping your home warm. The additional glass layer creates a superior sound barrier, significantly reducing outside noise.

Originally used for safety and security, optional laminated glass also provides excellent acoustic performance by dampening sound waves.

To maximise the sound insulation properties of your triple glazing, look for solid frame construction – ideally engineered timber with optional aluminium cladding. This prevents noise ingress through the frame and seals of your windows.

Recent research validates what Scandinavian countries have known for decades: triple glazing delivers measurable improvements in home performance.

A 2024 study published in Science and Technology for the Built Environment found that triple-glazed windows deliver "improved energy savings, comfort, and moisture resilience for thin triple windows compared to standard and high-performing double panes due to improved thermal performance, glass temperatures, and ambient air temperatures."

The research confirms that well-designed triple glazing doesn't just reduce energy costs – it fundamentally improves how comfortable your home feels throughout the year.

The thermal performance of a triple-glazed window is normally 40-50% better than a double-glazed version, but typically only 10-15% more expensive.

Noise reduction can also be better depending on the glass used. This improved thermal performance is delivered as a result of the extra insulation provided by the third pane of glass and the additional layer of argon gas.

Centre-pane U-values measure only the glass performance at its most insulated point, while whole-window U-values include the frame, edges and overall construction.

Always compare whole-window U-values when evaluating windows, as centre-pane values can be misleadingly optimistic. Quality triple glazing should achieve whole-window U-values of 0.8 W/m²K or better.

No, triple-glazed units are thicker and heavier than double glazing, requiring specifically designed frames to accommodate them properly.

Attempting to retrofit triple glazing into double-glazed frames compromises both thermal and structural performance. Proper triple glazing installation requires complete window replacement with frames engineered for the additional weight and depth.