Aluminium or uPVC Frames: Ask What the Glass and Installation Change

Frame samples are easy to compare by colour and profile. The performance of the finished window also depends on glazing, seals, operating style and installation. Ask suppliers to quote complete assemblies that meet the same brief.

Describe the home's location, exposure and rooms being altered. A proposal for a shaded bedroom should not automatically become the specification for a large sun-facing living-room opening.

Request exact product ranges and relevant complete-window performance information. Ask whether the aluminium proposal uses a particular thermal design and what that means for the quoted assembly. Do not apply a general claim about all metal or plastic frames to every product.

Check the opening arrangement too. Different sash sizes or fixed sections can change the appearance, operation and price even when the overall opening is similar.

Ask about cleaning, accessible drainage features and replacement hardware. If the property has coastal or other demanding exposure, request the manufacturer's suitability and care guidance for that location.

A durable-looking finish still has instructions. Keep those instructions with the product identifier rather than relying on the sample colour name.

If concealed damage is found, agree how it will be documented and authorised. Keep structural or hazardous-material questions with appropriately qualified professionals.

For Australian homes, YourHome's glazing guidance is a useful starting point for understanding the interaction of glass, frame and climate. Local requirements still need assessment at the address. Select the assembly whose specification and ownership routine fit the building, then make the final finish choice.

Photo: Tsuyoshi Kozu / Unsplash. Stock image for context; not a photograph of a project reviewed in this article.