Premium timber sash windows - beautifully crafted since 1840

  • Traditionally proportioned timber sections
  • Designed to replicate original details
  • Elegant appearance
Smithy cottage hidden balance sliding sash windows (1)

Our timber sash window range

Heritage timber sash windows with modern performance

With over 180 years of expertise, Patchett Joinery crafts exceptional original timber sash windows that seamlessly blend heritage and innovation. Our bespoke timber sash windows replicate the elegant proportions of traditional designs while providing modern thermal insulation and draught-proofing.

Timber Box Sash Windows

All our sash windows come with fantastic guarantees, giving you the assurance that our products are made to last, while also providing modern thermal insulation and draught-proofing benefits. Every window we make is engineered using the highest quality materials and will require minimum routine maintenance.

Timber Concealed Balance Sash Windows

Concealed spiral balance sliding sash windows are a great alternative to the traditional weight & pulley alternative.

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.

Timber Yorkshire Sash Windows

Our horizontal sliding sash windows 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 a Yorkshire based company with our factory located in Bradford, West Yorkshire, manufacturing Yorkshire sash windows is part of our heritage!

Key Features of Our Timber Sash Windows

Our timber sash windows are designed to meet the highest standards of performance, durability, and style. Each window is carefully crafted using top-quality materials and precision engineering to ensure long-lasting satisfaction. Key features include:

More Benefits & Timber Sash Window Features

Our windows combine timeless design, superior craftsmanship, and advanced technology to offer exceptional performance and aesthetic appeal. Crafted from sustainably sourced timber, these windows are made to measure to fit any style or requirement, ensuring a perfect match for your home. With enhanced security features, energy-efficient technology, and options for traditional or contemporary finishes, our windows are designed for durability, sustainability, and beauty. Experience the perfect blend of tradition and modern performance with our bespoke sash window services.

Quality & Craftsmanship
Our windows are designed with precision and built to last, ensuring superior performance and aesthetic appeal.
  • Engineered timber construction
    Our windows use engineered timber for exceptional strength and durability, providing long-lasting beauty and functionality.
  • Comprehensive manufacturer guarantees
    We offer extensive guarantees on all windows, giving you confidence in the craftsmanship and longevity of our products.
  • All sashes are drained and ventilated for greater life expectancy
    Proper drainage and ventilation are integral to our windows, reducing moisture buildup and extending window life.
  • Water drain detail
    Decorative water drain details enhance the performance of the windows by efficiently directing water away from the cill, preventing damage.
  • Water-based painting system for weather resistance and UV protection
    Our windows feature a water-based paint system that offers robust protection against weather and UV rays, ensuring a long-lasting finish.

Sustainability
We prioritise environmentally responsible solutions, using materials and processes that reduce our environmental impact without compromising quality.
  • High-quality, sustainably sourced timber
    Our windows are crafted from sustainably sourced timber, combining eco-friendliness with premium durability.
  • Eco-friendly paint process
    We use an eco-friendly paint process that lowers emissions while delivering a resilient, high-quality finish on all windows.
Customisation
Every home is unique, which is why we offer a variety of options to customise your traditional sash windows to match your style and requirements.
  • Large choice of hardware in contemporary or traditional design
    Choose from a wide selection of hardware styles and finishes, including sash lifts, locks and more, ensuring your windows perfectly complement your home’s design.
  • Traditionally proportioned timber sections to replicate original window details
    Our windows are designed with traditional proportions to replicate authentic window details, preserving the character of older homes.
  • Custom shapes and designs available
    We provide custom windows in various shapes and designs, allowing for a tailored fit or unique aesthetic.
  • Concealed balance system or traditional weight and pulley box sash window (option)
    Choose between a modern concealed balance system or a traditional weight and pulley system for your windows, based on your preferences.
  • Trickle vents (option)
    Our windows can include concealed trickle vents with colour-matched external canopies, providing discreet ventilation without detracting from the appearance.
  • Available in any RAL paint colour
    We offer windows in any RAL paint colour, allowing you to match the windows perfectly to your home’s exterior or interior.
  • Astragal bars (option)
    Choose from a range of astragal bar styles for your windows, each providing a seamless finish and enhancing the traditional look.
  • Sash horns (option)
    Customise your windows with decorative sash horns, adding to the classic appearance of the top or bottom sash.
Safety & Security
Your safety is our priority. Our double-glazed sash windows are designed to meet industry-leading security standards to protect your home.
  • PAS 24 hardware
    Our windows are equipped with PAS 24-certified hardware, meeting the highest industry standards for security and peace of mind.
  • Restrictors to limit window opening (options)
    Optional window restrictors allow you to limit the opening range of your windows, adding an extra layer of safety for families and children.
Energy Efficiency
Our sash windows are designed to improve energy efficiency, helping you maintain a comfortable home while reducing energy costs.
  1. ‘U’ values lower than building regulation requirements depending on specification (option)
    Our high-performance windows deliver U-values below building regulation standards, offering superior insulation and energy savings.
  2. Internal beading
    Internal beading is a standard feature in our windows, enhancing weatherproofing and security for added durability.
  3. Double draught seals
    Double draught seals on all windows ensure excellent thermal performance, weatherproofing, and noise reduction, making your home more comfortable.

1000’s of configuration options

Accoya
This timber is the world’s leading high technology long life wood created from sustainably sourced, fast growing softwood in New Zealand. The timber has an average density of 510kg/m3.
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Red Grandis
Our most commonly used hardwood timber, Red Grandis (Eucalyptus Grandis, to give it its botanical name) is a South American hardwood sourced from sustainable and carefully managed timber plantations.
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Double-glazed casement window with black iron hardware
Double Glazing
Double glazing uses two panes of glass filled with insulating gas to make a window more energy-efficient. Double glazing can also reduce noise, condensation and increase security.
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Heritage glazed sliding sash window in an old English terraced house
Heritage Glazing
Heritage glazing helps replicate the original look of historic houses without the need for bulky secondary glass and comes 'non-stamped'.
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Decorative Glass
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Leaded Glass
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Gas
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Spacer Bars
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Planitherm Total+ and Low Emissivity (Low E) Glass
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Standard Glass
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Toughened and Laminated Glass
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Low Iron Glass
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Anti – Sun Glass
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Acoustic Glass
Acoustic Glass option
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Obscure Glass
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Round End Sash Stop
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Cill Lock
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Solid Ring Pull Sash Lift
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Ring Sash Lift
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Mighton Fitch Fastener Locking
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Croft Lockable Fitch Fastener
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Solid Sash Lift
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Cast Sash Lift
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Pressed Sash Lift
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Push Lock
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Angel Lock
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Sliding Sash Fitch Fastner
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Sash Pullies
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Vent Lock
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Using only a water-based painting system which allows timber to “breathe” and adapt to climatic changes, our finishes provide maximum protection against weathering, fungal attack and UV degradation. The water-based application significantly reduces harmful emissions and disposal issues associated with solvent based systems.

Working with our paint partner, Sikkens, we can finish in any RAL colour, stain, or match against all well known paint ranges and brands. With the ability to have different internal and external finishes, your windows and doors can be finished just as you require.

Our factory is audited quarterly to ensure that the finished product has the highest quality paint finish and performance you would expect.

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 experienced joiners meticulously handcraft each window, ensuring flawless f...
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Sustainable Practices
We use sustainably sourced timber and eco-friendly processes, including water-based paints, to reduc...
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Tailored Solutions
Every project is unique. We offer bespoke designs and a wide range glass, timber, and finish options...
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Exceptional Customer Service
Our expert team ensures a smooth, hassle-free experience from consultation to installation, offering...
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Quality Assurance
We guarantee excellence in every step, from timber selection to finishing, backed by comprehensive g...
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Committed to Sustainability

At Patchett Joinery, we’re dedicated to sustainability in every aspect of our sash window production. From using responsibly sourced materials to eco-conscious manufacturing processes, our timber sash windows are designed to be as environmentally friendly as they are beautiful.
Sustainably Sourced Timber
Our windows are crafted from FSC®-certified, sustainably sourced engineered timber, offering a durab...
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Recycled Timber Waste
Any timber waste generated during the production of our windows is repurposed into briquettes, which...
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Sustainable Energy Usage
Our sash window workshop is powered by renewable energy, including a biomass boiler and solar panels...
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Eco-Friendly Paint Process
We use water-based paints from Symphony Coatings on all windows, an eco-conscious choice that reduce...
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Locally Manufactured in Yorkshire
All of our windows are crafted in our West Yorkshire workshop, reducing the carbon footprint associa...
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Request your free quote today

Get in touch with our team to get a free no obligation quote.

Our extensive guarantees

At Patchett Joinery, we stand by the exceptional quality of our timber sash windows with comprehensive guarantees

Against preservative failure

50 Year manufacturer guarantee on durability (rot resistance) with Accoya timber (30 years with engineered timber)

Paint

12 years opaque and 10 years translucent with Accoya. Up to 8 years on opaque and 6 years on translucent with engineered timber.

Weather Seals

10-year* manufacturer-backed guarantee on weather seals.

Double-Glazing

10-year* manufacturer-backed guarantee on double-glazed units.

Hardware

5-year* manufacturer-backed guarantee on hardware

Case studies

What our customers have to say

FAQ’s

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 windows offer several benefits including classic aesthetic appeal, easy operation, excellent ventilation control, enhanced security features, and good for energy efficiency. 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, wooden sash windows can achieve excellent thermal performance and energy efficiency. Our traditional sash windows are made with low U-values for reduced heat transfer.
Are wooden 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.
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 wooden 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.

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