TIMBER WINDOW RETROFIT • CANBERRA

Double glazing retrofit for suitable timber windows

Improve comfort while retaining more of the original timber character where the existing frames and sashes are structurally suitable for an insulated glass upgrade.

A targeted retrofit option, but not the right answer for every frame

A retrofit can work where timber is sound, sash depth and rebates can accommodate the glass unit, and retaining the existing appearance is important.

  • Assess timber condition and glazing rebates
  • Review balances, hinges, locks and seals
  • Select glass thickness and cavity for the frame
  • Consider draught sealing and water management
  • Review heritage or appearance constraints where relevant
Timber window double glazing retrofit planning

Retrofit or complete replacement?

Ask whether your timber windows are suitable for retrofit