Timber Sash Windows

Timber Sash Windows: Designed To Perfection. Flawlessly Manufactured.

Our timber sash windows are designed to preserve period charm while enhancing modern performance. Each window is carefully handcrafted to suit your property, ensuring an elegant and seamless finish that blends beautifully with traditional and contemporary homes. With exceptional attention to detail, we offer fully customisable designs, from moulding profiles and glazing bar styles to colour-matched finishes that complement your home’s aesthetic.

Beyond their visual appeal, our timber sash windows are built for durability. Featuring high-performance glazing, factory-applied spray finishes, and sustainably sourced Engineered Hardwood, they offer superior insulation, low maintenance, and long-lasting structural integrity. Whether you need full-frame replacements or new sashes installed into existing frames, our expert craftsmanship ensures a perfect balance of heritage design and modern efficiency.

Timber Sash Windows Features

Designed to suit any size, shape or style. Retaining period features, from moulding designs to horn details.

Market-leading glazing specifications, all glazed from the interior to optimise period design and durability

Flexible installation solutions that can see new sashes being installed into the existing, historical frame

Exceptional, factory-applied spray paint finishes matched to any desired colour or stain

Extensive array of hardware designs and finishes

Built to last with substantial warranties and life expectancy

Our Versatile

Timber Sash Windows

Our new timber sash window and boxes are manufactured using the traditional cord and counterweight or assisted sash balance systems. Optimised for smoothness, durability and ideal for enhancing the period charm of your property.

Our new timber sashes can also be installed into the existing frames. This is an excellent solution for upgrading your existing single glazed or rotten sashes whilst keeping treasured historical fabric, ideal for listed buildings and conservation areas.

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Bespoke Design

Every Sash Window is different, every customer has different requirements. William Richards Sash Windows thoroughly surveys and designs each and every sash window to suit. Our clients can customise everything from glazing bars and moulding to paint finishes and horn details. By taking everything into account, we make sure your sash windows are designed perfectly to suit your style and building requirements.

Premium Timber

Sustainably sourced, all of our timber sash windows are constructed using Engineered Hardwood. Our extensive research and experience working with hardwood has ensured it passes the test of time. It’s low movement, high density characteristics makes for lasting durability and the porous grain works in harmony with our quality paint finishes.

Traditionally manufactured

Our talented team of time served bench joiners, machinists, glaziers and finishers utilise a blend of classic techniques and state of the art machinery to produce wooden sash windows that are built with meticulous detail proven to stand the test of time. Each sash window goes through an in-depth quality check from our production manager to ensure it meets our quality standards.

Paint Finishes That Protect

Our timber spraying specialists utilise our state-of-the-art spray booth. All of our timber sash windows go through a 5 stage paint system starting with an impregnating base coat to seal end grain followed by 4 coats of micro porous primers and top coats. This results in maximum durability with low maintenance – we ensure our timber sash windows can stand all the weather variants the UK can throw at them.

Effective, Subtle Glazing

We glaze our sash windows with state of the art glass units to suit every specification. Whether your sashes are being installed into the existing frames of a listed building or we are producing new boxes for a modern, eco friendly home. From thermaglass lined, insulated glass units to vacuum insulated laminate we use the perfect glass solution to suit your specification.

Expert Window Installation

Our professional in house team of installers have been specifically trained to install your new sash windows perfectly whilst also working respectfully and carefully. Each customer’s unique logistics are taken into account by our technical surveyors. The project progress and quality is consistently monitored by our installation managers giving you peace of mind throughout the installation.

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Array of Fasteners and Hardware

Our range of sash window hardware has been chosen to suit an assortment of styles and finishes. Both enhancing the charm of your window whilst strengthening security.

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New Joinery Workmanship

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Factory Spray Finish

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Glazing

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Hardware & Fittings

How Much do Timber Sash Windows Cost?

Prices for timber sash windows start from £1,350, with the final cost depending on factors such as size, glazing type, design complexity, and installation location. Whether you’re looking for a standard sash window or a bespoke arched design, we offer tailored solutions to suit your needs.

Investing in high-quality timber sash windows ensures long-term durability, improved insulation, and increased property value. To receive a detailed, no-obligation quote based on your specific requirements, contact our team today.

Frequently asked questions about Timber Sash Windows

What is the process for ordering new timber sash windows?

The first stage is a consultation over the phone with a member of our team. We discuss your timber sash window requirements, and if you’re unsure, our trained staff can advise. We then arrange a site survey at your convenience. This short, no-obligation process ensures we provide an accurate, competitive quotation. The decision to proceed is entirely up to you.
Can I visit the workshop to see how my wooden sash windows are made?

Yes! We encourage clients to visit us to see the craftsmanship and quality of our handmade timber sash windows firsthand.
Are your timber sash windows traditionally manufactured?

Yes. Our time-served joiners use a blend of traditional techniques and modern machinery to construct our wooden sash windows, ensuring they meet modern performance standards while retaining period authenticity.
Do you only make sash windows, or do you offer other timber windows and doors?

We specialise in timber sash windows, but we also manufacture and supply a range of timber casement windows and bespoke wooden doors to suit period and modern homes.
Can I buy timber sash windows from you and install them myself?

Yes. We offer a supply-only service for all of our new wooden sash windows, along with installation guidance and quality control support to ensure a professional finish.
Do you offer a guarantee with your timber sash windows?

Yes. All of our timber sash windows come with guarantees covering workmanship, glazing, and factory-applied finishes. Warranty details will be provided with your quotation.
Do I need scaffolding to install new timber sash windows?

For most timber sash window installations, we work from inside the property, meaning scaffolding is not required. However, for casement windows or difficult-to-reach areas, a mobile tower or fixed scaffolding may be necessary.
Are your Installers all William Richards employees & William Richards trained?

Yes. All of our installation team members are William Richards employees, trained and audited to our specifications to ensure expert timber sash window fitting.
What type of timber do you use for your sash windows?

We manufacture our wooden sash windows using sustainably sourced Sapele hardwood, chosen for its durability, low movement, and excellent paint-holding properties.
Are timber sash windows energy efficient?

Timber sash windows offer excellent thermal performance, keeping your home warm in winter and cool in summer. Heat loss can be reduced by over 60% with secondary glazing featuring a low-emissivity (Low-E) hard coating, improving U-values from 5.4 W/m²K to 1.7 W/m²K (Westminster City Council).
How do timber sash windows compare to uPVC alternatives?

Timber sash windows offer a more authentic appearance, making them the preferred choice for period homes and conservation areas. Unlike uPVC, timber sash windows are more durable, sustainable, and can be restored rather than replaced, ensuring longevity.
Are wooden sash windows the same as timber sash windows?

All wooden sash windows are made from timber, but the quality of the timber varies. Our timber sash windows are crafted from Sapele hardwood, which is stronger and more durable than softwood alternatives.
How long do timber sash windows last?

With proper maintenance, timber sash windows can last over 60 years. Our factory-applied finishes and high-performance glazing ensure long-term durability.
Do timber sash windows require regular maintenance?

Minimal maintenance is needed, thanks to our advanced paint finishes. Occasional repainting and simple upkeep, such as lubricating pulleys, will keep your wooden sash windows in top condition.
What are the best glazing options for timber sash windows?

We offer double-glazed, vacuum-insulated, and thermaglass-lined glazing units to improve insulation and energy efficiency while maintaining the traditional charm of timber sash windows.
Can timber sash windows be installed in conservation areas?

Yes. Our timber sash windows comply with heritage regulations and can be customised to match existing period details. We also offer solutions that allow new sashes to be fitted into existing frames to retain as much original material as possible.

Interested in New Sash Windows?

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Handcrafted Sash Windows that Preserve Your Home’s Period Charm

Timber Sash Windows: Designed To Perfection. Flawlessly Manufactured.

Bespoke Design

Premium Timber

Traditionally manufactured

Paint Finishes That Protect

Effective, Subtle Glazing

Expert Window Installation

How Much do Timber Sash Windows Cost?

Frequently asked questions about Timber Sash Windows

Interested in New Sash Windows?

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