What Are Georgian Windows?

 

Georgian windows typically feature a symmetrical arrangement of smaller glass panes separated by horizontal and vertical glazing bars.

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One of the best-known designs is the six-over-six sash window, with six panes in the upper sash and six in the lower sash. However, Georgian windows were produced in many configurations, including:

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• Six-over-six sash windows

• Eight-over-eight sash windows

• Nine-over-nine sash windows

• Six-over-one arrangements

• Georgian casement windows

• Arched or fanlight designs

• Bay windows with Georgian glazing bars

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The proportions of the frame and panes are important. Georgian-style windows should appear balanced rather than simply having decorative bars added without reference to the size of the opening.

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Georgian Sash Windows

 

Georgian sash windows traditionally consist of two framed sections that slide vertically within the outer box frame.

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Older examples generally operate using cords, pulleys and concealed counterweights. Modern Georgian sash windows may retain this traditional system or use spring balances.

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Typical features include:

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• Timber box frames

• Vertical sliding sashes

• Slim glazing bars

• Traditional sash horns where appropriate

• Sash locks and security catches

• Draughtproofing systems

• Double glazed or slim-profile glass

• Painted or stained finishes

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For an authentic appearance, attention should be given to the width of the glazing bars, the depth of the frames and the position of the meeting rails.

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Poorly proportioned replacement windows can make a Georgian or Victorian elevation appear noticeably heavier.

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Georgian-Style Windows

 

Georgian-style windows recreate the divided-pane appearance without necessarily using traditional sash construction.

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They may be supplied as:

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• Casement windows

• Flush casement windows

• Tilt-and-turn windows

• Sliding sash windows

• Bay and bow windows

• Fixed picture windows

• French windows and glazed doors

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This allows the Georgian appearance to be used on many different types of property.

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A modern home may use Georgian-style UPVC windows to add traditional character, while a period property may require bespoke timber sash windows closely matching the originals.

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Georgian Glazing Bars

 

The glazing bars are one of the most important elements of Georgian window design.

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There are several ways to create the traditional grid pattern.

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Astragal bars

Astragal bars are fitted to the internal and external surfaces of the glass. Spacer bars may also be positioned inside the sealed double glazed unit.

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This creates the appearance of individual panes and provides a more convincing traditional finish.

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Georgian bars within the glass

Georgian bars can be sealed inside the double glazed unit. They create the visual grid but leave the inside and outside glass surfaces smooth.

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This makes the window easier to clean and is generally less expensive than external astragal bars. However, it may provide a flatter and less authentic appearance.

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Traditional individual panes

Historically accurate windows may use separate panes of glass held within genuine timber glazing bars.

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This may be required for listed buildings or particularly sensitive restoration projects. The narrow glazing bars and traditional construction can create the most authentic result, although thermal performance and maintenance require careful consideration.

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Applied glazing bars

Applied bars are attached directly to the glass after manufacture. The quality and appearance can vary, so the bars should be securely fitted and correctly proportioned.

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UPVC Georgian Windows

 

Georgian windows in UPVC offer a lower-maintenance alternative to traditional timber frames.

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They can be manufactured as casement, flush casement or sliding sash windows and are available in white, cream, grey, black and woodgrain finishes.

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Benefits of Georgian-style UPVC windows can include:

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• Limited maintenance

• Good thermal performance

• Modern multi-point locking

• A wide range of colours

• Double or triple glazing

• Lower costs than bespoke timber windows

• Easy-to-clean glazing

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For the most convincing appearance, choose frames with balanced sightlines and appropriately sized glazing bars. Very thick frames or oversized internal bars may look unsuitable on a period elevation.

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Flush casement UPVC windows can sometimes provide a more traditional appearance than standard projecting casements.

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Georgian-Style UPVC Sash Windows

 

UPVC sash windows recreate the vertical sliding operation of traditional timber sashes while offering modern insulation and security.

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They may include:

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• Georgian glazing bars

• Decorative sash horns

• Deep bottom rails

• Spring-balanced opening mechanisms

• Tilt-in cleaning facilities

• Woodgrain finishes

• Double glazed sealed units

• Modern locks and restrictors

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These windows can be suitable for traditional-style homes where homeowners want the sash appearance without the maintenance associated with timber.

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However, UPVC may not be acceptable for listed buildings or where local planning policies require original materials to be retained.

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Timber Georgian Windows

 

Timber remains the most authentic material for Georgian windows.

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Modern timber frames may be made from:

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• Engineered softwood

• Hardwood

• Oak

• Sapele

• Accoya or other modified timber

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Engineered and modified timbers can provide improved stability and resistance to twisting or moisture movement.

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Timber allows manufacturers to reproduce narrow glazing bars, traditional mouldings and individual frame details. It can also be repaired and redecorated during its service life rather than requiring complete replacement.

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Factory-applied paint systems can reduce maintenance and provide a durable finish, although timber windows will still require periodic inspection and decoration.

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Georgian Double Glazed Windows

 

Georgian double glazed windows combine a traditional divided-pane appearance with modern thermal and acoustic performance.

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The double glazed units may include:

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• Low-emissivity glass

• Argon-filled cavities

• Warm-edge spacer bars

• Toughened or laminated safety glass

• Acoustic glazing

• Obscure glass

• Solar-control coatings

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Standard double glazing can create thicker glazing bars and frame sections than those found in original Georgian windows. Where maintaining narrow traditional profiles is important, slim-profile double glazing may be considered.

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The performance of the complete window depends on the glass, frame, seals and quality of installation.

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Georgian Windows for Period Properties

 

Replacing windows in a Georgian or Georgian-style property requires careful consideration.

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Original windows contribute significantly to the character of the building. Even small changes to glazing-bar dimensions, frame depth or opening arrangement can affect the appearance of the entire elevation.

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Before replacing historic windows, consider whether they can be:

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• Repaired

• Draughtproofed

• Reglazed

• Fitted with secondary glazing

• Upgraded with slim double glazing

• Partially renewed using matching timber sections

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Traditional timber sash windows can often be repaired even when they initially appear badly deteriorated.

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Where replacement is necessary, new windows should normally reproduce the original proportions and detailing as closely as possible.

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Georgian Windows for Modern Homes

 

Georgian-style windows can also add character to newer properties.

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They are commonly used on:

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• Traditional new-build homes

• Country-style houses

• Georgian-inspired developments

• Cottage-style properties

• Extensions to period homes

• Conservatories and garden rooms

• Replacement bay windows

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The design should be applied consistently across the property. Mixing several glazing-bar patterns or frame styles can make the elevation appear confused.

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Where an extension is being added to a Georgian-style house, matching the existing window proportions can help the new work feel integrated with the original building.

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Georgian Bay Windows

 

Bay windows may incorporate Georgian glazing bars across several angled or curved sections.

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The arrangement of the bars should line through consistently from one window to the next. Uneven grids or mismatched sightlines can be particularly noticeable across a large bay.

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Replacing a bay window may also require consideration of:

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• Structural support

• Bay poles and corner posts

• Roof coverings

• External cills

• Internal finishes

• Insulation around the frame

• Support for the building above

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A detailed survey is important before the existing bay windows are removed.

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Energy Efficiency

 

Modern Georgian windows can provide good energy efficiency when they include insulated frames and suitable glazing.

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Important features include:

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• Low-emissivity double glazing

• Argon or krypton gas

• Warm-edge spacer bars

• Multi-chambered UPVC frames

• Engineered timber construction

• Effective weather seals

• Professional installation

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Traditional glazing bars can increase the amount of frame material within the window, so it is important to consider the performance of the complete unit rather than the glass alone.

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Secondary glazing may provide an effective option where original Georgian windows must be retained.

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Security

 

Modern Georgian windows can include:

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• Multi-point locking systems

• Lockable handles

• Sash locks and restrictors

• Internal glazing beads

• Toughened safety glass

• Laminated security glass

• Reinforced frames

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Ground-floor and easily accessible windows may benefit from laminated glazing, particularly where the decorative bars do not provide any structural resistance.

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The complete window, including the frames, hinges and fixings, should be considered when assessing security.

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UPVC Georgian Window Prices

 

UPVC Georgian window prices depend on the size, style and glazing-bar specification.

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The main cost factors include:

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• Casement or sliding sash operation

• Standard or flush frames

• Internal Georgian bars or external astragal bars

• White, coloured or woodgrain finishes

• Double or triple glazing

• Toughened, laminated or acoustic glass

• Bay-window construction

• Number of opening sections

• Access and scaffolding

• Removal of existing windows

• Internal and external making good

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Georgian-style casement windows with bars sealed inside the glass will generally cost less than bespoke sash windows with external astragal bars.

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Timber Georgian sash windows will usually cost more than standard UPVC alternatives because of the materials, joinery and detailing involved.

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When comparing prices, check that each company is quoting for the same frame, glass and glazing-bar arrangement.

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Planning Permission

 

Like-for-like replacement windows can often be installed without planning permission. However, consent may be needed where the property is:

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• Listed

• Within a conservation area

• Subject to an Article 4 Direction

• A flat or maisonette

• Having windows added in new positions

• Receiving substantially different materials or designs

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Listed Building Consent will normally be required before historic windows in a listed property are removed or significantly altered.

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Planning applications may require scaled elevation drawings, window details, glazing-bar profiles, frame sections and information about the proposed materials.

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It is important to establish the planning position before ordering replacement windows.

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Building Regulations

 

Replacement windows must comply with relevant Building Regulations relating to:

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• Thermal performance

• Ventilation

• Safety glazing

• Means of escape

• Structural support

• Protection from falling

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A registered competent-person installer may be able to certify compliant replacement work. Otherwise, approval may need to be obtained through Building Control.

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Existing escape windows should not normally be replaced with designs that reduce the clear opening without proper assessment.

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Choosing a Georgian Window Installer

 

The quality of the design and installation will determine whether Georgian windows appear authentic and perform effectively.

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A detailed quotation should confirm:

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• Frame material

• Window style and opening arrangement

• Glazing-bar type and dimensions

• Glass specification

• Window energy rating or U-value

• Colour and finish

• Locks and security features

• Ventilation provision

• Removal and disposal

• Internal and external making good

• Planning and certification responsibilities

• Product and installation guarantees

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Ask to see examples of similar Georgian windows installed in period or traditional-style properties.

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Find Trusted Georgian Window Installers

 

Correct proportions, suitable glazing bars and careful installation are essential when choosing Georgian windows. The frames should complement the character of the property while providing reliable security, ventilation and energy performance.

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APN Double Glazing can connect homeowners with experienced local installers offering timber and UPVC Georgian windows, traditional sash designs and modern double glazed options.

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Get in touch for expert advice and a free, no-obligation quote for Georgian windows.