Triple Glazed Unit Replacement & Upgrades

Upgrade from double to triple glazing — without replacing your window frames.

Why Upgrade to Triple Glazing?

Triple glazed units contain three panes of glass instead of two, creating:
If you’re looking to improve warmth and performance without replacing your windows, triple glazed unit replacement may be the solution.

Can I Upgrade to Triple Glazing Without Replacing My Windows?

In many cases — yes.
If your existing frames have sufficient rebate depth and structural capacity, we can replace your double glazed unit with a triple glazed sealed unit.
We assess:
If your frames are suitable, you can upgrade without the expense of full window replacement.
We’ll give you honest advice

Upgrade Without Replacing Frames

Before – Standard double glazed unit

After – Triple glazed unit installed into existing frame

Upgrading the glass can significantly improve performance while keeping your existing windows.

Benefits of Triple Glazing

Lower U-values

Improved energy efficiency

Reduced cold spots

Better internal comfort

Better internal comfort

Triple glazing can be particularly beneficial for:

Exposed properties

North-facing elevations

Older homes with high heat loss

Customers looking to improve energy performance

Triple Glazed Units Available

We supply made-to-measure triple glazed sealed units including:
All units are manufactured to suit your existing frame dimensions.

How Much Does Triple Glazed Unit Replacement Cost?

Triple glazed units are typically more expensive than double glazing due to:
However, replacing only the sealed unit is still significantly more affordable than replacing the entire window.
For a personalised quote:

Simple & Professional

Assessment

We assess whether your frames can accommodate triple glazed units.

Professional Installation

We replace the failed unit quickly and cleanly.

Triple Glazed Unit Replacement Across:

And surrounding Midlands areas.

Upgrade Your Windows Without Replacing Them

If your double or triple glazed unit has failed, RUK Glazing can help.