Choosing between double and triple glazing is one of the most common questions our design consultants hear. Both will make a dramatic difference compared to old single-glazed or failing units, but each suits different homes and budgets.
How the glazing works
Double glazing uses two panes separated by a gas-filled cavity. Triple glazing adds a third pane and a second cavity, further slowing the transfer of heat and sound.
When triple glazing makes sense
Triple glazing comes into its own in certain situations:
- Homes in exposed, windy or very cold locations
- Properties near busy roads, railways or flight paths
- North-facing rooms that receive little solar gain
- New-build or deep-retrofit projects aiming for very low energy use
Our recommendation
For most homes, modern A-rated double glazing offers the best balance of performance and value. Your surveyor will advise on the right choice for each room during your free consultation.
