Aluminium vs Timber Retrofit Double Glazing
Compare aluminium and timber retrofit double glazing for Christchurch homes, including suitability, cost, frame checks, and when replacement is better.
Choosing Aluminium vs Timber Retrofit Double Glazing
Existing aluminium frames can often be retrofitted if they are straight, weatherproof, and deep enough for the selected insulated glass unit. This is common in Christchurch homes built with single-glazed aluminium joinery.
Aluminium retrofit is usually the lower-cost frame type, but older non-thermally broken frames can still conduct cold through the metal.
Timber Retrofit Double Glazing
Timber windows are often chosen for retrofit when the home has character joinery worth keeping. The frame needs to be sound, dry, and able to hold the new glazing system.
Timber retrofit may cost more than aluminium because preparation, putty, beads, and finishing can be more labour-intensive.
Get a Christchurch Retrofit Assessment
The right answer depends on frame condition, glass size, exposure, access, and whether the existing joinery can safely carry an insulated glass unit.