Name: Draught Proofing Timber Windows
Brand: The Sash Window Workshop
Availability: InStock

Sash & Casement Window Draught Proofing

Our sash and casement window draught proofing service is designed to improve the performance of your existing timber windows without the need for replacement. Through a combination of draught sealing, window restoration and overhaul work, we can help eliminate draughts, rattles and unwanted noise while preserving the character of your original windows. Suitable for period homes, listed buildings and conservation areas, draught proofing is often a cost-effective alternative to replacement, helping to improve comfort, energy efficiency and the lifespan of your existing windows.

What is Draught Proofing?

Draught proofing is the process of sealing gaps around moving parts of a window to reduce unwanted air leakage. This involves fitting discreet seals that help prevent cold air entering the property while maintaining the smooth operation of the window.

Over time, timber windows naturally experience wear and movement, creating gaps that allow draughts, dust and noise to enter the home. By carefully sealing these gaps, draught proofing improves comfort while retaining the original window.

For period properties, draught proofing is often an effective form of window restoration, helping to upgrade performance while preserving historic features.

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What’s Included in an Overhaul?

A draught-proofing overhaul involves more than simply fitting seals. Our service is designed to restore the smooth operation and performance of existing timber windows while addressing minor issues that develop over time.

Depending on the condition of the windows, work may include installing discreet draught-proofing seals, replacing worn sash cords, easing and rebalancing sash windows, adjusting sticking windows, tightening loose joints, minor timber repairs, servicing ironmongery and fittings, improving the operation of opening lights. The aim is to extend the life of the window while improving performance and usability.

The Benefits of Draught Proofing

Draught proofing offers a range of benefits while preserving your existing windows. By reducing uncontrolled air leakage, it can improve thermal insulation and energy efficiency, helping rooms feel warmer and more comfortable throughout the year. Many homeowners also notice a reduction in external noise, particularly from traffic and other everyday disturbances. Because the seals help hold moving parts more securely, draught proofing can eliminate rattling sashes and improve the overall operation of the window. As part of a wider window restoration programme, an overhaul can also help extend the lifespan of timber windows, delaying or even avoiding the need for replacement.

Listed Buildings and Conservation Areas

Draught proofing is particularly popular for listed buildings and properties located within conservation areas.

Because the work focuses on repairing, servicing and upgrading existing windows rather than replacing them, it can often be carried out without affecting the character of the property. In many cases, draught sealing and repair work can be undertaken without planning permission, although requirements can vary depending on the building and local authority.

For homeowners wishing to improve comfort without replacing original windows, draught proofing can provide a sympathetic and planning-friendly solution.

Repair vs Replace

In many cases, draught proofing is the most sensible option. If the timber remains structurally sound and the windows are fundamentally repairable, an overhaul can significantly improve performance at a lower cost and with less disruption than full replacement.

However, some windows may have extensive decay, severe distortion or structural issues that make repair uneconomical. In these situations, replacing the moving sashes or installing completely new timber windows may provide a better long-term solution.

During our survey, we assess the condition of your windows and provide honest recommendations based on the level of repair required, helping you choose the most appropriate option for your property and budget.

Cost Guide

The cost of a draught-proofing overhaul varies depending on the condition, size and number of windows involved, along with any repairs required during the work.

Because the existing windows are retained, draught proofing is typically a more affordable option than replacing the windows entirely. Many homeowners choose it as a way to improve comfort, energy efficiency and usability without the expense and disruption associated with new windows.

Following a detailed survey, we can provide a tailored quotation based on the specific requirements of your property.

Our process and areas covered

Every project begins with a survey of your existing windows. Our specialists assess their condition, identify any repairs that may be required and recommend the most appropriate draught-proofing solution.

Any necessary overhaul work is then carried out before discreet seals are fitted and the windows are adjusted to ensure smooth operation.

The Sash Window Workshop has been repairing and upgrading timber windows for over 30 years. We cover London and Southern England, travelling as far north as Northampton, as far east as Colchester, as far west as Bristol and as far south as Bournemouth.

Frequently Asked Questions

Can draughty sash windows be fixed without replacing them?

Yes. In many cases, draughty sash windows can be significantly improved through draught proofing, re-cording and general overhaul work, avoiding the need for full replacement.

Do I need planning permission to draught-proof a listed building's windows?

In many instances, draught proofing is considered a repair rather than an alteration, meaning planning permission is often not required. However, requirements can vary and it is always sensible to check with your local authority if you are unsure.

How much does a draught-proofing overhaul cost?

The cost depends on the size, condition and number of windows involved, as well as whether repairs are required. A survey allows us to provide an accurate quotation for your property.

Should I repair or replace my windows?

If the existing timber remains in good condition, repair and draught proofing are often the most cost-effective options. Where windows have extensive deterioration, replacement may be more appropriate. We can advise during a survey.

Will draught proofing stop the rattling and noise?

Draught proofing can significantly reduce rattling by securing moving parts and closing gaps within the window. It can also help reduce external noise by limiting air paths through the window.

Book a free survey

If your timber sash or casement windows are suffering from draughts, rattles or poor performance, our specialists can help.

Contact us today to arrange a free, no-obligation survey and discover how draught proofing and window restoration could improve the comfort, efficiency and lifespan of your existing windows.