Published 20 September 2026.
Once a homeowner has decided to replace old windows, the next question is usually which replacement window type should I choose? There is no single configuration that suits every Melbourne home. The right choice depends on ventilation, opening size, furniture and access, exterior clearance, views, glazing, energy requirements and the architecture of the property.
JL Windows manufactures custom aluminium replacement windows, so different opening types can be coordinated within the same renovation rather than forcing every room into one configuration.
Awning Windows
Awning windows are hinged at the top and open outward. They are commonly considered where controlled ventilation is required and can be combined with fixed glazing to balance opening area and views. Exterior clearance and the size of the operable sash need to be considered.
Explore aluminium awning windows.
Sliding Windows
Sliding windows can suit locations where an outward-projecting sash is undesirable. They are practical for many residential openings, but the usable opening area, screen arrangement and sightlines differ from awning or casement configurations.
Explore aluminium sliding windows.
Fixed Windows
Fixed glazing does not open and can provide a clean, uninterrupted glazed area where ventilation is not required. It is often combined with operable windows so a room can retain ventilation without making every section openable.
Combination Windows
Many replacement openings work well as combinations — for example, fixed glazing with an awning section. The proportions should be designed around the opening, required ventilation and the appearance of the house rather than copied from an unrelated project.
Should Every Room Use the Same Window Type?
No. Bedrooms, bathrooms, kitchens and living areas have different functional requirements. The frame colour and general design language can remain consistent while opening configurations vary by room.
What About Double Glazing?
Opening style and glazing should be considered together. Homeowners upgrading older single glazing can review our double-glazed window replacement guide. The suitable glass depends on window dimensions, orientation, room use, performance requirements and budget.
Standard Aluminium or Thermally Broken?
Standard aluminium is suitable for many residential applications. Thermally broken aluminium incorporates a low-conductivity separation in the frame to reduce direct heat transfer through the aluminium. The appropriate system should be selected alongside the glazing and project performance requirements.
Replacing Old Timber Windows?
If the existing house has timber frames, the new configuration does not always have to copy the old opening style exactly. Subject to the opening and project requirements, homeowners may be able to change the configuration while replacing the old frame. See our timber-to-aluminium replacement guide.
Choosing Windows for a Whole-House Renovation
For larger projects, plan all openings together. This makes it easier to coordinate frame colour, sightlines, glazing, hardware and the balance between fixed and opening sections. See our whole-house replacement guide.
What Should I Send for Advice and Pricing?
Send your suburb, photos of each existing window, approximate dimensions and a note about what you want from each room — for example ventilation, a larger view, privacy, noise reduction or improved thermal performance. Architectural plans are useful when available but are not required for an initial homeowner review.
Compare the main pricing variables in our window replacement cost guide.
