All our timber box sash windows come with fantastic guarantees giving you the assurance that our products are made to last. Every window we make is engineered using the highest quality materials and will require minimum routine maintenance.
Where Heritage Meets Innovation - Est. 1840
Utilising more than 175 years of Patchett Joinery expertise, our sliding sash window has been carefully designed to replicate original detail, subtle proportions and elegance while meeting modern demands for thermal insulation and draught proofing.
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Eco-Friendly Products
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Extensive Guarantee
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Energy Efficient
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British Manufacturer
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Internally Beaded
Concealed spiral balance sliding sash windows are a great alternative to the traditional weights & pulleys sash window.
They are easy to use and meet the same quality standards, but tend to be more cost effective and ideal for new builds or those with a lower budget.
Our horizontal sliding sash window or ‘Yorkshire Sash’ are often seen in cottages in the North Yorkshire area. Their proportions are traditionally square and they open by the inner sash sliding behind the outer on an aluminium track and high quality adjustable rollers, making the sash operation easy and smooth.
As we are a Yorkshire based company with our factory located in Bradford, West Yorkshire, manufacturing Yorkshire sash windows is part of our heritage!
Benefits of Our Timber Sash Windows
Aesthetic Appeal
Our windows capture the timeless elegance of period designs, enhancing both traditional and contemporary homes with authentic period detailing.
Energy Efficiency
Advanced weatherstripping and high-performance glazing options ensure exceptional thermal insulation, reducing heat loss and energy costs.
Acoustic Insulation
Robust timber construction and advanced glazing provide excellent sound dampening, creating a quiet living environment.
Durability
Made from high-quality, sustainably sourced timber, our timber sash windows are engineered to last with minimal maintenance.
Customisation
Choose from various finishes, colours, and hardware options, including any RAL paint colour, to match your property’s unique style.
Sustainability
We use FSC and PEFC-certified timber, prioritising eco-friendly practices and minimising environmental impact.
Security
Equipped with advanced locking mechanisms, including multipoint locking and security hinges, our traditional sash windows enhance home security.
Performance
Our new windows feature multiple draught seals, stainless steel hardware, and are fully gasket-sealed for maximum thermal and acoustic insulation.
Our Sash Window Features
Engineered Timber
Made from high-quality, sustainably sourced timber, ensuring exceptional strength and longevity.
Excellent Thermal and Weather Performance
Independently tested for superior thermal insulation and weather resistance, keeping your home comfortable year-round.
Enhanced Security
Equipped with advanced locking mechanisms as standard, providing robust security.
Guaranteed Performance
Backed by comprehensive manufacturer warranties for long-lasting assurance.
Stainless Steel Hardware as standard
Standard stainless steel hinges, locks, and fixings for durability and reliability.
Fully Gasket Sealed
Provides greater weather resistance and protection against the elements.
Concealed Hardware
Locking systems and hinges are hidden from the elements, enhancing both durability and overall appearance.
Multipoint Locking
Secures the window at multiple points along the frame, combating seasonal movement and enhancing security.
Multiple Draught Seals
Ensures maximum thermal and acoustic insulation, creating a comfortable indoor environment.
Available Options
Customisation Options
- Wide range of window hardware: Choose from a wide selection of handles and fittings.
- Paint Finishes: Available in any RAL paint colour, including stain and two-tone finishes (different colours inside and outside).
- Astragal glazing bars: A feature of many original timber sash windows, astragal glazing bars add a historic touch to a sash window.
Glazing
- Double Glazed Sash Windows: Double glazing with “U” value of 1.4 W/M2K.
- Triple Glazed Sash Windows: Triple glazing with “U” value of 0.99 W/m2K.
Safety Features
- Restrictors: Limit window opening to prevent small children from opening too far.
- Security Hinges: Provide additional protection to hinges.
- Egress Hinges: Allow sashes to open 90 degrees for emergency escape.
Ventilation and Insulation
- Ventilation Mode: Windows can be locked in a ventilation mode for background airflow while remaining secure.
- Trickle Ventilation: Meets current building regulations, concealed within the frame with an external timber canopy.
Design Options
- Slender Timber Sections: Replicate original window details.
- Opening Configurations: Includes top hung, side hung, egress, and flying mullion for fire escape.
- Bay and Bow Windows: Various configurations, including curved glass.
Custom Shapes: Options for shaped, arched, bullseye, raked, and arched sightlines.
Our Guarantees
At Patchett Joinery, we stand by the exceptional quality of our timber sash windows with comprehensive guarantees:
- Patchett Product Guarantee: All our windows are engineered using the highest quality materials, ensuring longevity with minimal maintenance.
- 30-Year Manufacturer-Backed Guarantee: Against rot (50 years with Accoya).
- 8-Year Manufacturer-Backed Guarantee: Up to 8 years manufacturer guarantee on opaque paint and stain finishes (12 years with Accoya) and 6 years on translucent paint and stain finishes (10 years with Accoya)*.
- 10-Year Manufacturer-Backed Guarantee: On weather seals and double-glazed units.
- 5-Year Manufacturer-Backed Guarantee: On hardware.
*subject to exposure conditions.
These guarantees provide peace of mind, assuring you that our products are made to last.
Why Choose Patchett Joinery
When it comes to crafting exceptional wooden sash windows that seamlessly blend heritage and innovation, Patchett Joinery stands apart as the premier choice. With a legacy spanning over 180 years, we have honed our skills and expertise to deliver products that truly embody the essence of quality, beauty, and sustainability.
Unrivalled Craftsmanship
At Patchett Joinery, our team of skilled artisans is dedicated to preserving the time-honoured traditions of fine joinery. Each window is meticulously handcrafted, with every detail carefully executed to ensure flawless fit, authentic period detailing, and a level of quality that is second to none.
Sustainable Practices
We are committed to minimising our environmental impact through the use of sustainably sourced timber from FSC and PEFC-certified forests, as well as eco-friendly manufacturing processes. Our water-based paints and stains significantly reduce emissions, allowing the timber to breathe and adapt to changing climates while providing superior protection against weather, fungal attack, and UV degradation.
Tailored Solutions
We understand that every project is unique, and our team of experts is dedicated to working closely with you to bring your vision to life. From bespoke designs to tailored glazing, timber, and finish options, we ensure that your wooden sash windows perfectly complement your home's architectural style and meet your specific functional requirements.
Exceptional Customer Service
At Patchett Joinery, we pride ourselves on delivering an unparalleled customer experience. Our knowledgeable team is always on hand to provide guidance, support, and expert advice, ensuring that your journey with us is smooth and hassle-free from initial consultation to final installation.
Quality Assurance
With a commitment to excellence that spans generations, we take great care in every step of the manufacturing process, from timber selection to final finishing touches. Our comprehensive guarantees on timber, glazing, and finishes provide you with the ultimate peace of mind, ensuring your investment in our wooden sash windows is protected for years to come.
Choose Patchett Joinery, and experience the perfect fusion of heritage, innovation, and uncompromising quality. Our wooden sash windows are more than just beautiful additions to your home; they are timeless investments that will enhance your living spaces for generations to come.
Frequently Asked Questions
What is a sash window?
A sash window is a style of window comprised of two operable sashes that slide vertically in opposing directions. One sash slides upwards while the other slides downwards, allowing for ventilation and airflow. Sash windows are counterbalanced with weights or spiral balances to enable smooth operation.
What are the benefits of wooden sash windows?
Wooden sash windows offer several benefits including classic aesthetic appeal, easy operation, excellent ventilation control, enhanced security features, and potential for energy efficiency with proper glazing and weatherstripping. They are low-maintenance and can increase a property's value and curb appeal.
How energy efficient are timber sash windows?
With modern upgrades like double or triple glazing, low-e coatings, warm edge spacers, and weatherstripping, wooden sash windows can achieve excellent thermal performance and energy efficiency. Look for a traditional sash window made with low U-values for reduced heat transfer.
Are sash windows secure?
Yes, modern sash windows incorporate multi-point locking systems, reinforced materials, and robust hardware to provide a high level of security against forced entry. Many also feature laminated glass for enhanced safety.
How is a sash window operated?
A sash window traditionally uses counterweight systems with lead weights and pulleys. Modern versions utilise spiral balances or spring balances instead. The top and bottom sashes slide vertically - opening the bottom sash pulls cool air in, while opening the top sash allows warm air to escape.
What are the different timber options for sash windows?
Popular timber choices include hardwoods like accoya, red grandis and engineered redwood. Each offers its own aesthetic, durability, and performance characteristics.
Are sash windows suitable for period properties?
Yes, they are an ideal choice for preserving the authentic character of period and heritage listed properties everywhere. Their traditional appearance and operation blends seamlessly with classical architecture.
What finishes and colour options are available?
A wide range of paint colours and stain finishes can be specified for a sash window, from classic white to rich wood tones. Dual colour options with different interior/exterior finishes are also available.
How much maintenance do new sash windows really require?
Sash windows require relatively low maintenance. The tracks/balances should be checked periodically, external surfaces repainted/stained as needed, and the glass/frames cleaned regularly.
Do sash windows provide good sound insulation?
With double glazing or triple glazing, they can offer very good sound insulation by reducing exterior noise transmission into the home.
Are sliding sash windows expensive?
While sliding sash windows require more skilled manufacturing compared to some other window styles, they are a solid long-term investment that can add value. Pricing depends on factors like materials, glazing, size and finish specifications.