Aluminium Windows Melbourne

Aluminium Windows Melbourne: Why Thermally Broken Aluminium is the Right Choice

Melbourne homeowners and builders looking for aluminium windows are increasingly specifying thermally broken systems rather than standard aluminium. The difference matters more than most people realise, and understanding it is the starting point for making the right decision for your home or project.

Standard aluminium frames are highly conductive. Heat and cold transfer freely through the metal, which means the frame itself undermines the thermal performance of the glass it holds. A high-quality double glazed unit sitting in a standard aluminium frame will never perform to its rated specification because the frame creates a direct thermal bridge between the inside and outside of the building.

A thermally broken aluminium frame interrupts that bridge with a continuous polyamide barrier inside the frame profile. The barrier physically separates the exterior and interior sections of the metal, dramatically reducing heat transfer through the frame. Combined with a double or triple glazed glass unit, the result is a window system that performs genuinely well in Melbourne's climate rather than just looking like it should.

The SoTherm Range

Window Society supplies thermally broken aluminium windows and doors across our SoTherm range, which includes residential, semi-commercial, and commercial profile systems. All systems are available in double and triple glazing configurations, with standard colours of white, black, and grey, and custom powder coat finishes available in virtually any colour.

Our SoTherm casement and commercial profiles suit higher-specification residential and multi-residential applications, and our SoTherm sliding and multi-panel door systems include an ultra-slim series that delivers the 20mm sightlines specified by architects on premium residential projects across Melbourne.

Every system is custom manufactured to the exact dimensions of your project. There are no standard sizes in our range. Each window and door is made to the millimetre to fit your opening precisely.

Double Glazing vs Triple Glazing for Melbourne Homes

For most Melbourne residential projects, thermally broken double glazing is the right specification. It delivers U-values between 1.6 and 2.4 W/m²K, which represents a dramatic improvement over standard single-glazed aluminium at around 6.0 W/m²K, and achieves the thermal and acoustic performance that Melbourne's climate requires without the additional cost of triple glazing.

Triple glazing uses three panes of glass with two insulating cavities rather than one. It achieves lower U-values than double glazing and better acoustic performance across a wider frequency range. It is the right choice for homes in cooler parts of Victoria, rooms with significant exposure to traffic or industrial noise, projects targeting 7-star NatHERS ratings and above, or homeowners who simply want the highest possible specification.

The premium for triple glazing over double is typically 20 to 30 percent on the glazing component. Window Society can specify and supply both, and we will give you an honest view of whether triple glazing is warranted for your project or whether double glazing delivers everything you need.

Aluminium Windows for Window Replacement and New Builds

Window Society supplies thermally broken aluminium systems for both window replacement projects and new builds and extensions across Melbourne and Victoria.

For window replacement, every system is custom manufactured to fit your existing opening dimensions. We replace the full window assembly, frame and glass together, ensuring the thermal performance of the frame matches the glass. Our installers work carefully to protect surrounding surfaces and leave the home clean and fully functional at the end of each day.

For new builds and architectural extensions, we work from architectural drawings and provide shop drawings for builder and certifier review. Our 9 to 12 week manufacturing lead time allows for accurate programming within construction schedules, and our project coordination team manages delivery and installation to align with site programs.

What Aluminium Windows Cost in Melbourne

The cost of aluminium windows in Melbourne depends on the number of openings, their dimensions, the profile system selected, the glazing specification, and whether the job is supply only or supply and install. Custom powder coat finishes, heritage colour matching, and non-standard hardware selections all affect the final cost.

For a typical Melbourne home requiring 10 to 15 windows and doors, supply and install costs generally range from $20,000 to $50,000 for standard double glazing. Larger homes, architectural projects, or homes requiring triple glazing or bespoke specifications will sit above that range. For a full breakdown of what affects double glazing costs, see our double glazing Melbourne guide.

Every project is custom-quoted following a free on-site assessment. Window Society provides free assessments across metropolitan Melbourne and regional Victoria with no obligation to proceed.

Servicing Melbourne and Victoria

Window Society works across all of Melbourne and regional Victoria. We have particular experience in the inner east including Toorak, Hawthorn, Kew, Malvern, Camberwell, and Glen Iris, the inner south including Brighton, Sandringham, Elsternwick, and Bentleigh, and the inner north including Fitzroy, Carlton, Brunswick, and Essendon. We also service outer suburban Melbourne and regional areas including Geelong, the Mornington Peninsula, Ballarat, and the Yarra Valley.

Our showroom is located in Airport West and is open by appointment Monday to Friday. Free on-site assessments are available across our full service area.