Why Install New Windows?

 

Older windows may continue to function but gradually become less effective. Seals deteriorate, hinges wear, timber can decay and older glazing may provide limited thermal insulation.

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New windows may be worth considering where the existing frames are:

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• Draughty or difficult to operate

• Misted between the panes

• Rotten, warped or damaged

• Poorly secured

• Allowing excessive outside noise

• Visually unsuitable for the property

• Expensive to maintain

• Providing inadequate ventilation

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Modern windows can also be installed as part of a home extension, loft conversion, renovation or change to the external appearance of a property.

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Benefits of New Double Glazed Windows

 

New double glazed windows contain two panes of glass separated by a sealed cavity. This cavity is normally filled with air or an insulating gas such as argon.

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The glazing may also include low-emissivity coatings and warm-edge spacer bars to help improve thermal performance.

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The main benefits can include:

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Improved energy efficiency

New double glazing reduces the movement of heat through the glass. Combined with insulated frames and properly sealed installation, this can make rooms feel warmer and reduce cold areas around windows.

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Greater security

Modern frames commonly include multi-point locking systems, secure handles and internal glazing beads. Laminated or toughened glass can be used where additional security or safety is required.

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Reduced outside noise

Well-fitted windows can reduce traffic, aircraft and neighbourhood noise. Properties in particularly noisy locations may benefit from acoustic glazing or glass panes of different thicknesses.

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Improved appearance

Windows influence the proportions and character of the entire property. Carefully selected frames, colours and glazing bars can refresh a tired elevation while complementing the original architecture.

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New UPVC Windows

 

New UPVC windows remain one of the most popular options for UK homes. They are generally affordable, easy to maintain and available in numerous styles.

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Choices include:

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• Standard casement windows

• Flush casement windows

• Tilt-and-turn windows

• UPVC sash windows

• Bay and bow windows

• Cottage-style designs

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White remains a common choice, but new UPVC windows are also available in grey, black and coloured finishes. Woodgrain surfaces can reproduce the appearance of painted or stained timber.

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UPVC is particularly suitable for homeowners seeking good thermal performance with limited maintenance. However, the quality of the frame, reinforcement, hardware and installation can vary, so quotations should be compared carefully.

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New Wooden Windows

 

New wooden windows can provide a natural, traditional appearance and are often chosen for period homes, cottages and conservation-area properties.

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Frames may be made from engineered softwood, hardwood, oak, sapele or modified timber such as Accoya. They can be painted or stained to complement the property.

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Modern wooden windows benefit from improved factory-applied finishes, stronger seals and double glazed units. When properly maintained, they can offer excellent durability and thermal performance.

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Timber also provides greater flexibility where bespoke profiles, glazing bars or historic detailing need to be reproduced.

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New Sash Windows

 

New sash windows are designed to recreate the vertical sliding action and proportions found in many Georgian, Victorian and Edwardian properties.

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They may be manufactured from timber or UPVC and can include:

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• Double glazed sealed units

• Traditional glazing bars

• Weighted cords or spring balances

• Draught-proofing systems

• Secure locks and catches

• Decorative sash horns

• Painted or woodgrain finishes

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New sash windows can improve comfort while retaining the character of an older home. Slim double glazing may be used where standard units would result in frames that appear too heavy.

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For listed buildings and some conservation-area properties, the local authority may require new sash windows to match the original material, glazing-bar arrangement and frame profile.

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New Aluminium Windows

 

New aluminium windows provide a slim, contemporary appearance and are well suited to modern homes, extensions and larger glazed openings.

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Aluminium is strong, allowing manufacturers to create narrower frames and larger areas of glass. Modern aluminium windows also include thermal breaks within the frame to reduce heat transfer.

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They are available in a wide selection of powder-coated colours and may have different colours internally and externally.

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Although new aluminium windows often cost more than standard UPVC, they can offer attractive sightlines, durability and low maintenance.

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How Much Do New Windows Cost?

 

New window costs vary considerably according to the frame material, size, style and glazing specification.

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The main cost factors include:

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• Number and size of windows

• UPVC, timber or aluminium frames

• Standard, flush or sash designs

• Double or triple glazing

• Toughened, laminated or acoustic glass

• Coloured or woodgrain finishes

• Bay-window construction

• Bespoke shapes and glazing bars

• Access and scaffolding requirements

• Removal of existing windows

• Internal and external making good

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Standard UPVC casement windows are usually among the most affordable options. New wooden windows, aluminium frames and bespoke sash windows generally involve higher manufacturing and installation costs.

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The quotation should clearly state whether it includes removal, disposal, trims, sealants, ventilation and repairs to surrounding plaster or brickwork.

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New UPVC Window Costs

 

New UPVC window costs depend on more than the dimensions of the opening. Frame profile, locking system, glazing type, colour and opening configuration can all affect the price.

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A fixed window will usually cost less than a window containing several opening sections. Flush casements, coloured frames and sash-style designs will normally cost more than basic white UPVC casements.

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Rather than comparing only the total price, check the window energy rating, frame construction, hardware specification and guarantees included.

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New Sash Window Costs

 

New sash window costs are generally higher than standard casement windows because of their construction and moving components.

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Timber sash windows are usually more expensive than UPVC alternatives, particularly where bespoke glazing bars, slim double glazing or traditional joinery details are required.

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The cost may also increase where existing openings require repair, structural adjustment or specialist finishing.

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Choosing the Right Glass

 

The glazing specification should reflect the location and use of each window.

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Options can include:

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• Low-emissivity energy-efficient glass

• Toughened safety glass

• Laminated security glass

• Acoustic glazing

• Solar-control glass

• Obscure or frosted glass

• Decorative and etched glass

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Safety glazing is normally required in vulnerable locations, including low-level windows and glazing close to doors.

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Bathrooms and other private rooms may require obscure glass, while rooms facing busy roads may benefit from acoustic glazing.

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Planning Permission for New Windows

 

New or replacement windows can often be installed without planning permission, particularly where they closely match the existing design.

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Additional restrictions may apply where the property is:

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• Listed

• In a conservation area

• Subject to an Article 4 Direction

• A flat or maisonette

• Receiving windows in a new position

• Being changed substantially in appearance

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Listed Building Consent is normally required before altering historic windows in a listed property. Planning applications may also require scaled elevations and detailed drawings showing the proposed frame material, glazing bars and opening arrangement.

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Building Regulations

 

New windows must comply with relevant Building Regulations covering thermal performance, ventilation, safety glazing and escape requirements.

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A registered competent-person installer can normally certify replacement work. Alternatively, approval may need to be obtained through Building Control.

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Where an existing escape window is being replaced, the new design should not reduce the available clear opening without careful consideration.

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Choosing a Window Installer

 

The quality of installation is just as important as the quality of the windows. Poorly fitted frames can result in draughts, leaks, damage to surrounding finishes and operational problems.

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A detailed quotation should confirm:

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• Frame and glass specification

• Energy ratings or U-values

• Locking systems

• Ventilation provision

• Removal of existing windows

• Internal and external finishes

• Installation timescale

• Product and workmanship guarantees

• Certification arrangements

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An experienced installer should also advise whether repairs, glass replacement or complete new windows offer the best value.

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Find Trusted New Window Installers

 

Choosing suitable frames and glazing is essential, but professional installation is equally important. Accurate measurement, appropriate fixings and careful sealing will help ensure your new windows remain secure, weatherproof and energy efficient.

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APN Double Glazing can connect homeowners with experienced local installers offering new UPVC windows, timber frames, aluminium designs and traditional sash windows.

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