Astragal Bars vs Georgian Bars

What are the differences between Astragal Bars and Georgian Bars?

While both bar styles give the illusion of smaller individual panes, the key difference lies in how they’re constructed:

• Georgian Bars sit between the glass panes of a double-glazed window. They create a grid effect that mimics traditional Georgian-style windows, but the glass remains in a single pane per sash.
• Astragal Bars are mounted on the external and internal surfaces of the glass, with a spacer bar inside the unit to align with the bars. This setup creates the appearance of individually glazed panes, offering a more traditional, three-dimensional look that closely replicates original timber windows.

In short: Georgian Bars are decorative but flat, while Astragal Bars provide a more authentic, classic look with added depth.

Why choose Astragal Bars or Georgian Bars?

Choosing between Astragal and Georgian bars largely depends on your home’s style and your personal preferences.

Astragal Bars are ideal if:

• You're looking for a more traditional or heritage-style finish
• You want windows that closely replicate original period features
• Your property is listed, or in a conservation area, and appearance is key

Georgian Bars are perfect if:

• You prefer a cleaner, low-maintenance option
• You want the traditional grid-look but at a more affordable price point
• You’re upgrading modern homes that don’t require strict visual authenticity

Are Astragal and Georgian Bar windows more expensive?

In general, yes, both styles cost more than plain glass windows, as they involve additional design and manufacturing. However:

• Georgian Bars usually cost less because manufacturers incorporate them into the glazing. This means they need less work to install.
• Astragal Bars are typically more expensive because of their layered construction and extra detailing.

Both options remain far more affordable than replacing timber windows entirely. At Modern UPVC Windows, we offer trade prices to everyone, no account needed, and back it up with our price match guarantee. This ensures you receive the genuine timber-style sash windows you desire, at the most competitive price available.

What factors should I consider when selecting the ideal bar for my home?

When deciding between Astragal Bars vs Georgian Bars, consider the following:

• Style of property – Period properties often suit Astragal Bars, while newer builds can carry off Georgian Bars nicely.
• Planning restrictions – Some areas require authentic window designs, making Astragal Bars the better choice.
• Budget – If cost is a major factor, Georgian Bars provide the traditional look at a more accessible price.
• Maintenance – Georgian Bars are easier to clean, especially on larger windows.

Security Performance

Astragal and Georgian bars have no negative impact on the security of your windows, as they are purely decorative and do not compromise the sealed glazing unit. All of our sash and casement windows, regardless of bar style, are built with robust multi-point locking systems, internally glazed units, and are PAS24 accredited for enhanced security. Optional upgrades such as laminated glass are also available for added peace of mind.

Do Astragal and Georgian Bars Affect Energy Efficiency?

Despite their different constructions, Astragal and Georgian bars have no noticeable impact on the energy efficiency of your windows. Both styles are used with sealed double-glazed units, meaning the insulating layer of gas between panes remains fully intact. Whether you choose bars applied inside the glazing (Georgian) or on both sides with a spacer (Astragal), all our windows including casement, sash, or bay, are built with A+ rated glazing and warm-edge spacer bars as standard, ensuring exceptional thermal performance across the board.

Long-Lasting Performance: Durability of Astragal and Georgian Bars

When it comes to durability and longevity, both Astragal and Georgian bars are built to last and withstand everyday use and weather exposure. Georgian bars, being sealed within the glazing unit, are protected from external wear and require virtually no maintenance. Astragal bars, though applied to the surface of the glass, are securely bonded and made from robust materials designed to resist fading, warping, or detachment over time. All bar styles used in our upvc windows are manufactured to high industry standards, ensuring they maintain their appearance and structural integrity for decades, backed by our comprehensive warranties and British-made quality.