Preserve the Character of Your Period Home While Improving Comfort
Traditional sash windows are one of the defining features of Georgian, Victorian and Edwardian homes, but over time they can become one of the biggest sources of heat loss and discomfort.
At Mitchell & Dickinson, we specialise in sash window draught proofing for period and listed properties. Our bespoke systems are carefully designed to reduce draughts, improve comfort and enhance energy efficiency while preserving the original character of your windows.
Unlike modern replacement solutions, our approach focuses on restoring and improving your existing sash windows so they continue to operate smoothly while retaining the craftsmanship and heritage value that make period homes so special.
Whether your sash windows rattle in the wind, feel cold in winter or no longer open and close properly, our specialist craftsmen can help restore warmth and comfort to your home.
What Is Sash Window Draught Proofing?
Sash window draught proofing is the process of sealing unwanted gaps around traditional timber sash windows while allowing them to continue operating normally.
Over time, sash windows naturally develop gaps due to:
- timber movement
- general wear and tear
- settlement of the building
- ageing paintwork and putty
- worn sash cords and staff beads
These gaps allow cold air to enter the property and warm air to escape, making rooms feel uncomfortable and increasing heating demand.
Our specialist draught proofing systems discreetly seal these gaps using carefully integrated brush seals and restored joinery, significantly improving comfort without compromising the appearance of the windows.
Why Are Sash Windows So Draughty?
Traditional sash windows were originally designed to allow a degree of natural airflow through the property. However, after decades of use, many period sash windows become excessively draughty.
Common problems include:
- rattling sashes
- cold air infiltration
- loose or sticking windows
- worn cords and pulleys
- gaps between the sashes and frame
- poorly fitting staff and parting beads
In many older properties, draughts from sash windows are one of the biggest contributors to heat loss and discomfort.
Professional sash window draught proofing can dramatically reduce uncontrolled airflow while maintaining the natural operation and breathability of the building.
The Benefits of Sash Window Draught Proofing
Improved Comfort -Reducing cold draughts can make rooms feel noticeably warmer and more comfortable, particularly during colder months.
Reduced Heat Loss – Sealing gaps around sash windows helps improve thermal efficiency and reduce uncontrolled heat loss.
Smoother Window Operation – As part of the process, sash windows are carefully adjusted and rebalanced to improve how smoothly they open and close.
Reduced Rattling – Many period homeowners are familiar with rattling sash windows during windy weather. Draught proofing helps stabilise the windows and reduce movement.
Preservation of Original Features – Our approach focuses on restoring and improving your original windows rather than replacing them.
Suitable for Listed Buildings – Because the original windows remain intact, sash window draught proofing is often suitable for listed and conservation properties.
If you’re interested in finding out more, we’re happy to talk you through your options.
Drop our friendly customer services team a call or use the enquiry form below.
Specialist Sash Window Draught Proofing for Period Homes
Mitchell & Dickinson specialise in period and listed buildings. We understand the importance of preserving original timber windows while improving the comfort and performance of your home.
Our craftsmen carefully restore and re-engineer sash windows so they continue to operate as originally intended.
Every property is different, which is why our solutions are bespoke to each home.
We regularly work on:
- Georgian homes
- Victorian properties
- Edwardian houses
- listed buildings
- conservation properties
- country houses and estates
Our Sash Window Draught Proofing Process
- Detailed Survey
We begin with a detailed assessment of your windows and property.
This allows us to identify:
- sources of draughts
- movement within the sashes
- issues with cords, pulleys and weights
- areas requiring restoration
- opportunities to improve thermal performance
- Window Restoration & Preparation
Where required, we carefully restore elements of the original windows before installing the draught proofing system.
This may include:
- adjusting sashes
- replacing cords
- repairing staff beads
- easing and balancing windows
- minor timber repairs
- Installation of Draught Proofing System
Discrete brush seals are integrated into the window system to seal unwanted gaps while maintaining smooth operation.
- Final Adjustment & Testing
Once installed, the windows are adjusted and tested to ensure smooth movement and improved sealing.
Sash Window Draught Proofing & Secondary Glazing
For many period homes, sash window draught proofing works best when combined with secondary glazing.
Draught proofing helps reduce uncontrolled airflow, while secondary glazing improves insulation and acoustic performance.
Together, these measures can:
- improve comfort significantly
- reduce cold spots
- improve thermal efficiency
- reduce external noise
- help minimise condensation
This combined approach is often particularly effective in listed buildings where replacement double glazing is not appropriate.
Sash Window Draught Proofing for Listed Buildings
Many listed buildings still contain original timber sash windows that contribute significantly to the character of the property.
Replacing these windows can affect:
- historic character
- conservation compliance
- heritage value
- original craftsmanship
Because sash window draught proofing preserves the original windows and is generally discreet, it is often more suitable for listed and conservation properties.
We have extensive experience working with heritage homes and understand the importance of sensitive, conservation-led solutions.
If you’re interested in finding out more, we’re happy to talk you through your options.
Drop our friendly customer services team a call or use the enquiry form below.
Can Draught Proofing Reduce Heating Bills?
By reducing uncontrolled airflow and heat loss, sash window draught proofing can help improve the overall energy efficiency of a period home.
Many homeowners notice:
- warmer rooms
- fewer cold draughts
- reduced reliance on heating
- improved year-round comfort
The exact savings will vary depending on the condition of the property and the wider insulation measures already in place.
Why Restore Instead of Replace?
Original sash windows are often made from high-quality timber that can last for generations when properly maintained.
At Mitchell & Dickinson, we believe restoration is often the most sympathetic and sustainable approach for period properties.
Restoring and draught proofing original windows helps preserve:
- historic detailing
- craftsmanship
- architectural character
- the integrity of the building
while improving comfort and usability for modern living.
Why Choose Mitchell & Dickinson?
Specialists in Period Properties – We specialise exclusively in period and listed homes.
Bespoke Craftsmanship – Every project is tailored to the individual property.
Heritage-Led Approach – Our solutions are designed to preserve original features wherever possible.
Improved Year-Round Comfort – Our work helps create homes that are warmer in winter, cooler in summer and more comfortable all year round.
Trusted Expertise – We have extensive experience working with heritage properties across the UK.
Sash Window Draught Proofing Gallery
Frequently Asked Questions
Sash window draught proofing involves sealing unwanted gaps around traditional timber sash windows to reduce draughts and improve comfort while allowing the windows to continue operating normally.
For many period homes, sash window draught proofing is one of the most effective ways to improve comfort and reduce heat loss without replacing the original windows.
Yes. Professional draught proofing can help reduce rattling and movement caused by gaps around the sashes.
In many cases, yes. Because the original windows remain intact, draught proofing is often suitable for listed and conservation properties.
Draught proofing can help improve comfort and reduce cold air infiltration, although condensation is also influenced by ventilation and humidity levels.
Yes. Professional sash window draught proofing is designed to improve how smoothly the windows open and close.
