Double
Glazed doors
Miglas high performance double glazed doors
Miglas combines high security and energy efficient design in premium double glazed doors, proudly manufactured in Montrose, Melbourne since 1986. As an award-winning, multi-generational family business, we specialise in high-performance door systems designed specifically for Australian conditions.
Our trademarked AliClad range features double glazing as standard, delivering superior thermal performance and energy efficiency, far surpassing Australian Standards for external glazed doors ( AS 2047 ). Every double glazed door is fitted with a German-engineered multi-point locking system for advanced security, manufactured entirely from durable stainless steel to outperform traditional galvanised and powder-coated hardware.
The combination of high-performance double glazing and advanced security hardware delivers a secure, energy-efficient and durable door solution that goes well beyond the performance of standard doors.
Types of double glazed doors available
Miglas offers a comprehensive range of double glazed door styles to suit a wide variety of applications and architectural designs.
Hinged Doors
Vital to key entry points of the home, available in Inward or Outward Swinging configuration.
Sliding Doors
This door has the opening leaf sliding in a horizontal direction past another panel.
French Doors
This door is designed to open the space to a terrace or backyard. You have the choice to open one leaf or two at a time.
Centre Hinged Doors
This door has a fixed door pane and an opening leaf which is hinged in the middle.
Bifold Doors
These door panels are hinged together to fold into one area providing a large uninterrupted view.
Aluminium Front Doors & Entry Doors
Miglas offers a range of entry doors and a fitting service for external sourced entry designs.
Our AliClad frame
Our trademark AliClad windows combine the advantages of both timber and aluminium windows to create low-maintenance, energy-efficient and thermally stable window and door systems.
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Durable, Low-Maintenance Aluminium Exterior The protective aluminium cladding withstands harsh Australian weather conditions, offering exceptional durability without the need for repainting or extensive maintenance.
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Natural Timber Interior Genuine timber frames bring warmth, beauty and a premium natural finish to interior spaces, while providing excellent thermal insulation compared with conventional aluminium frames.
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Superior Energy Efficiency Combining thermally efficient timber frames with high-performance double glazing, AliClad reduces heat transfer, improves indoor comfort and helps lower heating and cooling costs year-round.
our Double Glazing Glass options
Double glazing is standard across the Miglas AliClad range, delivering superior thermal performance, with a variety of glass options available to enhance energy efficiency, noise reduction, safety, security, solar control and other performance requirements.
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Lightbridge Low-E Glass: Energy-efficient clear glass that reduces heat loss while allowing solar warmth to enter, helping maintain comfortable indoor temperatures.
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Performatech Double Silver Low-E Glass: High-performance glass that reduces heat transfer and limits solar heat gain, helping keep interiors cooler in warmer weather.
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Decorsatin Acid Etched Glass: Frosted privacy glass that obscures external views, ideal for bathrooms, entry doors and areas requiring additional privacy.
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Decorpattern White Pattern Glass: Decorative textured glass that diffuses light while providing privacy. Available in Cathlite, Spotswood, Satinlite and Narrow Reeded patterns.
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Vlam Hush Acoustic Laminated Glass: Specialised laminated safety glass featuring an acoustic interlayer that reduces sound transmission, helping create quieter indoor environments.
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High-Security Multipoint Locking System – Stainless steel multipoint locks secure the door at multiple points, providing enhanced protection against forced entry.
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Advanced Anti-Pick Locking Cylinders – 15-pin multi-axis locking cylinders provide an additional level of security against lock picking and unauthorised access.
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Precision-Engineered Adjustable Hinges – Concealed 3D adjustable hinges or stainless steel adjustable barrel hinges ensure smooth operation, precise alignment and long-term reliability.
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Designer Hardware with Superior Sealing – Premium stainless steel handles provide a sophisticated finish, while precision-engineered locking mechanisms pull doors tightly against their seals to minimise air leakage and improve thermal and acoustic performance.
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What are double glazed doors and what are the advantages
Double glazed doors use an Insulated Glass Unit (IGU), which is made from two panes of glass separated by a sealed cavity. This space between the panes acts as an insulating barrier, reducing the transfer of heat through the glass compared with conventional single glazing.
This improved insulation helps keep more warmth inside your home during winter while reducing unwanted heat entering during summer. As a result, double glazed doors can help maintain a more stable and comfortable indoor temperature and reduce reliance on heating and cooling.
The two layers of glass and the sealed cavity can also help reduce the amount of outside noise entering the home, making double glazing particularly beneficial for properties near busy roads, schools or other sources of external noise.
Double glazed doors can also offer improved safety and security. With two panes rather than a single sheet of glass, the overall glazing system provides a more substantial barrier. Different glass types, including toughened or laminated safety glass, can also be specified depending on the location and performance requirements of the door.
Combined, these features make double glazing an important part of creating doors that provide better thermal performance, acoustic comfort, safety and security than conventional single-glazed alternatives.
How do double glazed doors improve energy efficiency?
Double glazed doors improve energy efficiency by using two panes of glass separated by a sealed insulating cavity, which is typically filled with argon gas. Argon is a poor conductor of heat, meaning it slows the movement of heat through the glazing more effectively than ordinary air.
This insulating layer creates a thermal barrier between the inside and outside of the home. During winter, it helps reduce the amount of indoor heat escaping through the doors, while in summer it helps limit heat transfer from outside.
By reducing this heat transfer, double glazed doors can help maintain more consistent and comfortable indoor temperatures throughout the year. This can reduce the need for heating and cooling, potentially lowering household energy consumption and associated energy costs.
How does Low-E glass improve the energy efficiency of double glazed doors?
Further improvements to energy efficiency can be achieved by choosing Low-E glazing. Low-E (low-emissivity) glass has a special coating designed to reduce the amount of heat transferred through the glass, helping to keep warmth inside during winter and outside during summer. This can reduce the overall U-Value of the doors to below 2.0.
U-Value measures how readily heat passes through a building element such as a window or door. The lower the U-Value, the better the insulation and thermal performance. A U-Value below 2.0 therefore indicates a high level of thermal efficiency, helping to create a more comfortable indoor environment while reducing heating and cooling demands.
Do double glazed doors also reduce noise?
Double glazed doors can provide significantly better acoustic insulation than conventional single glazing. The two panes of glass and the sealed cavity within the Insulated Glass Unit (IGU) help reduce the transmission of sound energy through the glazing, limiting the amount of external noise that enters the home.
However, the glass is only one part of a door’s acoustic performance. Sound can also travel through small gaps around the door sash, which is why an effective seal between the opening and closing sections of the door is particularly important.
Miglas double glazed doors further enhance acoustic performance through specialised seals and German-engineered locking hardware. The locking system helps pull the door sash firmly against the seals when closed, creating a tight seal around the perimeter of the door.
This construction reduces air infiltration to as low as 0.05 Litres per second/m^2 and, importantly, helps minimise the small gaps and pathways through which external sound can travel. The combination of double glazing, effective sealing and secure locking can therefore create a quieter and more comfortable indoor environment, particularly in homes exposed to traffic, aircraft or other sources of external noise.
Double Glazing Glass options