Call us on
01274 882 331
Chat
Request Quote
Quote

Timber box sash windows made in Yorkshire

  • Traditional weights and pulley construction
  • Concealed trickle ventilation
  • Internally beaded
Request Quote
4.8 Star Rated
Smithy cottage hidden balance sliding sash windows
ON GOOGLE4.8/5 RATED

Traditional box sash windows

Our Box sash windows blend traditional design with modern engineering to offer a window solution that combines beauty, durability, and exceptional performance. Crafted from high-quality, sustainably sourced timber, these authentic sash windows are designed to complement both period and contemporary properties. With a wide range of customisation options, from hardware finishes to bespoke shapes and designs, you can create a look that perfectly suits your home.

Our double glazed sash windows provide significant energy efficiency benefits, including improved sound insulation, reduced condensation, and UV protection.

Our box sash windows also provide superior security, energy efficiency, and weatherproofing, ensuring that they not only enhance the aesthetic of your home but also offer practical benefits. Backed by our comprehensive manufacturer guarantees and built with expert craftsmanship, our timber windows provide the perfect balance of form and function, making them a lasting investment for any property.

Key Features of our Timber Box Sash Windows

Our box sash windows combine engineered timber construction, sustainability, and superior craftsmanship. With many customisation options, enhanced security, and energy efficiency, they offer a perfect blend of traditional style and modern performance.
Engineered Timber Construction

Engineered Timber Construction

Our box sash windows are crafted with precision from engineered timber, ensuring long-lasting durability and a classic aesthetic.

High-Quality, Sustainably Sourced Timber

High-Quality, Sustainably Sourced Timber

Built with sustainably sourced timber, our windows offer an eco-friendly option without compromising on quality or performance.

Comprehensive Manufacturer Guarantees

Comprehensive Manufacturer Guarantees

Each box sash window is backed by comprehensive manufacturer guarantees, reflecting our commitment to quality and craftsmanship.

Extensive Customisation Options

Extensive Customisation Options

Choose from a large variety of hardware, including stainless steel or cast iron hinges, locks, and fixings. Available in both contemporary and traditional designs to match your style.

Enhanced Safety & Security

Enhanced Safety & Security

Equipped with PAS 24 hardware, these windows meet industry standards for exceptional security.

Authentic Design Replication

Authentic Design Replication

Our box sash windows feature traditionally proportioned timber sections, replicating the original detailing of period properties.

Superior Energy Efficiency

Superior Energy Efficiency

Depending on your specifications, our box sash windows can achieve ‘U’ values lower than required by building regulations, with double-glazed and triple-glazed glass panes enhancing energy efficiency, sound insulation, and security.

Box Sash Window Benefits & Features

Our box sash windows blend traditional craftsmanship with modern technology, offering benefits that enhance your home’s security, and energy efficiency. The quality and craftsmanship of original sash windows are evident in their bespoke features and adherence to conservation criteria. Each feature is designed to meet the highest standards, ensuring increased performance, and longevity.

Request Quote
Quality & Craftsmanship
Enjoy the timeless appeal of traditional sash windows with the assurance of modern, high-quality construction.
  • Engineered Timber Construction: Ensures lasting strength and a precise finish that maintains the classic appearance of traditional sash windows.
  • Comprehensive Manufacturer Guarantees: Offers peace of mind with guarantees that protect the quality and performance of your timber windows.
  • All Sashes Are Drained and Ventilated: Enhances the life expectancy of your windows by allowing proper drainage and ventilation.
  • Water Drain Detail: Adds a decorative yet functional element, guiding water off the cill to protect your windows from water retention and damage.
  • Water-Based Painting System: Provides weather resistance and UV protection, prolonging the life of the windows while ensuring a beautiful finish.
Sustainability
Contribute to a greener planet with eco-friendly timber windows made from renewable resources.
  • High-Quality, Sustainably Sourced Timber: Crafted from timber that is responsibly sourced, reducing the environmental impact of your windows.
  • Eco-Friendly Paint Process: Utilizes environmentally conscious, water-based paints that are free from harmful chemicals.
Customisation
Tailor your windows to perfectly match your home’s design and personal preferences.
  • Large Choice of Hardware in Contemporary or Traditional Design
    Choose from a range of finishes, including stainless steel, with hardware that suits both modern and period properties.
  • Traditionally Proportioned Timber Sections
    Replicate original window designs for an authentic look while offering the benefits of modern technology.
  • Custom Shapes and Designs Available
    Personalise the size, shape, and design of your windows to fit unique spaces or architectural styles.
  • Trickle Vents (Option)
    Discreetly concealed within the frame, these vents improve airflow without compromising the aesthetic of the window.
  • Available in Any RAL Paint Color
    Match or complement your home’s color scheme with a wide range of paint color options.
  • Astragal Bars (Option)
    Available in various sizes and styles, these bars offer a seamless, scribed finish that enhances the window’s traditional look.
  • Sash Horn Detail (Option)
    Traditional sash horns can be added to the top or bottom sash to enhance the heritage design of your windows.
Safety & Security
Secure your home with double glazed or triple-glazed box sash windows, designed for superior protection.
  • PAS 24 Hardware: Meets industry standards for safety, ensuring your home remains secure.
  • Restrictors to Limit Window Opening (Option): Provides added safety by restricting how far the window can open, ideal for upper floors and homes with children.
Energy Efficiency of Double Glazed Sash Windows
Enhance your home's insulation and lower energy costs with energy-efficient sliding sash windows that combine modern functionality with classic design.
  • ‘U’ Values Lower Than Building Regulation Requirements (Option): Achieve greater energy efficiency and thermal performance, depending on the specifications you choose.
  • Internal Beading: Fitted at the factory, this feature enhances weather protection and security while prolonging the life of your windows.
  • Double Draught Seals: These double weather seals ensure exceptional weatherproofing, better thermal insulation, and soundproofing.
  • Lockable Fitch Catches (Option): Secure the window while compressing the weather seals for optimal thermal and acoustic performance.

Request technical drawings

Enter your details below and receive our technical drawings directly to your inbox

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.
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.
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.
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'.
Decorative Glass
Leaded Glass
Gas
Spacer Bars
Thermal and Low Emissivity (Low E) Glass
Standard Glass
Toughened and Laminated Glass
Low Iron Glass
Anti – Sun Glass
Pilkington soundproof glass
Acoustic Glass
Acoustic Glass option
Obscure Glass
Round End Sash Stop
Cill Lock
Solid Ring Pull Sash Lift
Ring Sash Lift
Mighton Fitch Fastener Locking
Croft Lockable Fitch Fastener
Solid Sash Lift
Cast Sash Lift
Pressed Sash Lift
Push Lock
Angel Lock
Sliding Sash Fitch Fastner
Sash Pullies
Vent Lock
From the Anvil Satin Chrome Sash Eye Lift
From the Anvil Sash Eye Lift
From the Anvil Polished Bronze sash lift
From the Anvil Sash Lift
From the Anvil Polished Chrome Square Ended Sash Pulley
From the Anvil Square Ended Sash Pulley
From the Anvil Polished Brass Fitch Fastener
From the Anvil Fitch Fastener
From the Anvil Flush key sash stop featured
From the Anvil Key flush sash stop

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 for your sash windows

At Patchett Joinery, we are passionate about crafting high-quality sash windows and doors that are custom-designed to meet your specific needs. Using only the finest sustainable timber, our sash windows reflect our unwavering commitment to quality and craftsmanship.

Your vision is at the heart of our process. Whether you’re seeking sash windows that complement modern elegance or capture the charm of a historical property, we are here to bring your ideas to life. Explore our extensive range of sash window styles, or collaborate with us on bespoke designs tailored for unique or heritage-rich homes

Watch Video
Expert Sash Window Manufacturers

With over 180 years of experience, we have honed our expertise in creating superior timber sash windows. Our meticulous attention to detail ensures that your sash windows will be a stunning feature of your home.

Custom Solutions for Unique Homes

No two homes are alike, which is why we offer bespoke sash windows that perfectly suit your property’s style and individual needs.

Seamless Installation

We don’t just craft exquisite sash windows; we manage the entire installation process to ensure a seamless fit and hassle-free experience, so you can enjoy your new windows with ease.

Commitment to Sustainability

We are proud to use only sustainably sourced timber in our sash windows, supporting eco-friendly practices and contributing to a greener future.

Exceptional Customer Service

From your first consultation to aftercare, our dedicated team is committed to providing exceptional service, ensuring your complete satisfaction with your new sash windows.

Committed to sustainability

At Patchett Joinery, sustainability is a priority throughout the production of our box sash windows. By using responsibly sourced materials and eco-conscious manufacturing processes, we ensure that our timber sash windows are as environmentally friendly as they are elegant.
Sustainably Sourced Timber
We craft our box sash windows from FSC®-certified, sustainably sourced engineered timber, providing a strong and eco-friendly alternative to UPVC while ensuring the longevity and beauty of each window.
Recycled Timber Waste
All timber waste generated during the production process is repurposed into briquettes that power our biomass boiler, ensuring zero waste and reducing our environmental impact.
Sustainable Energy Usage
Our workshop is powered by renewable energy, including solar panels and a biomass boiler, helping us minimize our carbon footprint while maintaining the highest standards of craftsmanship.
Eco-Friendly Paint Process
We use water-based paints from Symphony Coatings, an environmentally responsible choice that significantly reduces harmful emissions compared to traditional oil-based paints, while offering excellent durability and weather resistance.
Locally Manufactured in Yorkshire
All of our box sash windows are produced locally in our West Yorkshire workshop, reducing transportation emissions and supporting local craftsmanship, while ensuring quality control throughout the process.

Where heritage meets innovation

The history of Patchett Joinery spans nearly 200 years, starting with the establishment of a general joinery firm in Queensbury, Bradford in 1840. Today we craft timber windows and doors on the same site, using proven manufacturing techniques and the finest materials.

Skilled craftsmanship

We are proud to manufacture on site at our Yorkshire workshop using local talent and skills.

1000s of options

We have a large range of styles, paint, stain, glazing, hardware and timber options to create the best possible solution for you.

Streamlined process

Whether supply-only or supply and install, our dedicated team is here to ensure every part of the process runs smoothly.

Expert installation

Our skilled installation team have a wealth of experience and are on hand to install your newly finished products with care.

Learn more
Request your quote today

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

Request Quote
Chat Now
01274 882 331

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)*
*subject to exposure conditions

Paint

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

Weather Seals

10-year* manufacturer-backed
guarantee on weather seals.
*subject to exposure conditions

Double-Glazing

10-year* manufacturer-backed guarantee on double-glazed units.
*subject to exposure conditions

Hardware

5-year* manufacturer-backed
guarantee on hardware.
*subject to exposure conditions 

Our Box Sash case studies

Timber windows and doors by Patchett Joinery
Sliding Sash Windows – Victorian Property In Leeds
View case study
Timber windows by Patchett Joinery
Sliding Sash Windows – A Period Property In Ilkley
View case study
Sliding sash windows by Patchett Joinery
Burley House – Burley in Wharfedale
View case study
Timber windows at Patchett Joinery
Beckenham Palace Park
View case study
Timber windows by Patchett Joinery
The former Malt Shovel Hotel, Burley-In-Wharfedale.
View case study
View All Case Studies

What our customers have to say

The lads who came to install were brilliant, so professional, considerate and friendly and they are a credit to your company.

S. Koo

Harrogate

“I wanted to take a moment to express my profound appreciation for the exceptional service provided by Patchett Joinery. The installation process went extremely smoothly, and your team did a fantastic job. Both of the fitters were a pleasure to work with, demonstrating professionalism and a keen attention to detail that truly set them apart. […]

S. Taylor

Tyne & Wear

We absolutely love the windows 😊  

J. Martin

Marsden

Just wanted to say again, what super service and window quality Patchett’s have given us, our new house looks amazing!

R. Jones

Todmorden

Can I take this opportunity to say for the first day of installation your team have outdone themselves. Super pleased this far. They haven’t wasted anytime and just got on. The windows themselves are brilliant.  

M. Hussain

Sawley, North Yorkshire

View More Testimonials

More products in range

Spiral balance sash window with a view out over Robin Hoods Bay Yorkshire

Spiral Sash Windows
Our concealed balance sash windows use a modern spiral spring system instead of traditional weights and pulleys. Offering the same classic sash appearance and smooth operation, they are a more cost-effective option, making them ideal for new builds or tighter budgets.
Yorkshire-Sash-Window-by-Patchett-Joinery-scaled

Yorkshire Sash Windows
Our timber Yorkshire sash windows feature a traditional horizontal sliding design, with one sash gliding behind the other. Commonly found in Northern cottages, they combine heritage character with smooth operation thanks to aluminium tracks and high-quality adjustable rollers.