Custom Thermally Broken
Aluminium Sliding Doors
Custom thermally broken aluminium sliding doors for Melbourne homes. Ultra-slim profiles, seamless indoor-outdoor connection, precision engineered to your exact dimensions.
Trusted by Melbourne homeowners since 2006
Every system is custom manufactured to your exact dimensions. Available in standard and ultra-slim profiles with thermally broken frames throughout.
Thermally broken aluminium sliding doors in our SoTherm profiles. Suited to window replacement and renovation projects where slim sightlines and thermal performance are the priority.
Our SoTherm ultra-slim series delivers 20mm sightlines with floor-to-ceiling glazing. Suited to architectural extensions and new builds where maximum glass area and minimal frame are the specification.
Multi-panel corner configurations that open entire corners of a room to the outside. Custom engineered for each project with concealed posts and precision hardware.

Ultra-slim corner sliding doors with 7 metre span and floor-to-ceiling glazing throughout a full architectural renovation.

Full-height thermally broken aluminium sliding doors as part of a complete architectural extension.


Dramatic sliding door upgrade replacing dated timber bifolds with sleek black thermally broken aluminium frames.


Complete opening transformation with custom aluminium sliding doors replacing dated timber and maximising natural light.
Sliding doors are one of the most impactful changes a Melbourne homeowner can make. The right system opens your home to the outside, floods interior spaces with natural light, and when properly specified, performs thermally and acoustically in ways that standard sliding doors simply cannot match.
Most of Melbourne's existing sliding doors are single-glazed aluminium systems installed in the 1980s and 90s. These perform poorly on every measure: thermal insulation, acoustic performance, air infiltration, and ease of operation. Replacing them with a thermally broken double glazed system is one of the highest-impact upgrades available for an existing Melbourne home.
Standard aluminium sliding door frames conduct heat and cold freely through the frame, undermining the thermal performance of the glass they hold. In Melbourne's climate, this means a large sliding door can be the single biggest source of heat loss in winter and heat gain in summer in your home, regardless of how good the glass specification is.
A thermally broken aluminium frame interrupts that heat transfer with a continuous polyamide barrier inside the frame profile, separating the exterior and interior sections of the metal. Combined with a double glazed glass unit, the result is a sliding door system that genuinely insulates rather than just looking like it should.
For large openings, the thermal performance difference is material. A 3 metre wide sliding door in a standard aluminium frame with single glazing transfers several times more heat than the same opening in a thermally broken double glazed system. The impact on heating and cooling costs and on room comfort is significant and immediate.
The defining feature of Window Society's premium sliding door range is the ultra-slim profile. Our SoTherm ultra-slim systems deliver 20mm sightlines, compared to 60 to 80mm for standard sliding doors. For architectural extensions and new builds in Melbourne's inner suburbs, this difference defines the visual character of the opening.
Ultra-slim sliding doors maximise the glazed area within any given opening size, delivering more light, better views, and a cleaner architectural result. Floor-to-ceiling configurations are standard. Corner configurations that eliminate the corner post entirely are available for the right structural conditions.
All ultra-slim systems are thermally broken throughout and available in double and triple glazing configurations. Standard colours are white, black, and grey. Custom powder coat finishes are available in virtually any colour.
Window Society supplies sliding doors for both renovation and new build projects across Melbourne and Victoria. For renovation projects, every system is custom manufactured to fit your existing opening dimensions. For new builds, we work from architectural drawings and provide shop drawings for builder and certifier review.
Our sliding door systems are regularly specified by boutique builders and architects across Melbourne's inner east and bayside suburbs on projects ranging from single room additions to full architectural new builds. For more information on replacing existing sliding doors in your home, see our window replacement page.
The cost of thermally broken aluminium sliding doors in Melbourne depends on the opening width, height, the profile system selected, the glazing specification, and whether installation is included. A standard double glazed thermally broken sliding door for a typical 2.4 metre opening typically ranges from $3,000 to $6,000 supply only. Larger openings, ultra-slim profiles, corner configurations, or triple glazing will sit above that range.
For a full home sliding door replacement or a new build package including multiple openings, costs are quoted as part of a complete project assessment. For a full breakdown of what affects double glazing costs across Melbourne, see our double glazing Melbourne guide.
Every project is custom-quoted following a free on-site assessment with no obligation to proceed.
Window Society supplies and installs sliding doors across all of metropolitan Melbourne and regional Victoria. We have completed sliding door projects across Brighton, Balwyn, Toorak, Hawthorn, Kew, Elsternwick, Reservoir, Coburg, and many other suburbs. Our showroom is located in Airport West and free on-site assessments are available across our full service area.
A simple comparison to help you choose the best option for comfort, durability, and long-term value.
Not sure which option suits your home? We'll help you choose.
Don't just take our word for it. Here's what homeowners across Melbourne are saying about their experience with us.
"We replaced all 12 windows in our 1970s brick home. The difference is incredible, no more drafts, and our heating bills dropped noticeably. The team was professional, tidy, and finished two days ahead of schedule."
Sarah S.
Brighton, Melbourne
"From start to finish, Window Society exceeded our expectations with their exceptional service and competitive pricing."
Utku & Busra D.
Hawthorn, Melbourne
"Living near a main road, the noise was unbearable. The double glazing has transformed our home. We can finally sleep with the windows facing the street. Worth every cent."
Mick S.
Bentleigh, Melbourne
Proudly serving Brighton, Hawthorn, Malvern, Toorak, Kew, Glen Iris, Camberwell, South Yarra, Richmond, Essendon and across Melbourne & Victoria.
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