Sliding Sash Windows

South Lakes Windows Ltd supplies and installs beautifully crafted sliding sash windows for homes across Lancashire, Cumbria and North Yorkshire. Combining timeless style with reliable performance, our sliding sash window collections are ideal for period homes, conservation properties and traditional-style new builds. We work with trusted manufacturers including Bereco and Bygone to offer both timber and UPVC sash window options. Whether you’re restoring a heritage property or looking for a low-maintenance alternative with authentic detailing, our range offers a style and specification to suit your home.

A Classic Look with Modern Performance

Sliding sash windows are a defining feature of Georgian, Victorian and Edwardian architecture. Their vertical opening action, symmetrical design and decorative features add charm and character to both townhouses and rural cottages. At South Lakes Windows Ltd, we supply sash windows that keep those original features but update them with modern materials, energy efficiency and security. All our sash windows are available with double glazing, weather seals, and secure locking systems. They’re designed to reduce heat loss, prevent draughts and ensure smooth operation for years to come.

Bygone UPVC Range

The Bygone Collection is one of the most trusted names in UPVC sash windows. These windows are specially designed to replicate the fine details of traditional timber sash windows, including run-through horns, mechanical joints and slim sightlines. With woodgrain finishes and deep bottom rails, the Bygone range is ideal for properties in conservation areas or for homeowners who want heritage style without the maintenance of timber. The Bygone sliding sash windows also include energy-efficient glazing, secure fittings, and a tilt facility for easy cleaning.

Authentic UPVC Range

For homeowners who want a balance between cost, appearance and performance, our Authentic UPVC sliding sash windows provide an attractive alternative to timber. Designed to look like classic sash windows, they are fitted with smooth gliding tracks and secure locking as standard. They can be finished in a range of colours and woodgrain effects, and are a practical choice for newer homes or those looking to match existing style features. These windows offer excellent thermal performance, require little maintenance, and are suitable for properties throughout our service area.

Bereco Heritage Range

The Bereco Heritage Range is the ideal choice for listed buildings and homes in conservation areas. These timber sliding sash windows are built using traditional joinery methods and materials, with all the character of original timber designs but updated to include modern draught seals, glazing and hardware. Each window is made to order, ensuring a perfect fit and appearance that reflects the building’s age and status.

Heritage sash windows can be supplied with single or slimline double glazing, depending on planning requirements, and are hand-finished with long-lasting paints or stains.

Bereco Traditional Range

For homes built in a traditional style, the Bereco Traditional Range offers beautifully detailed timber sash windows that mirror the appearance of original 19th-century windows. These include deep bottom rails, sash horns, and authentic glazing bars. They’re perfect for homeowners who want to preserve the classic look of their property while gaining the benefits of modern performance. Each window is manufactured from sustainable timber and factory-finished to withstand the elements with minimal upkeep.

Bereco Contemporary Range

If you’re looking for a more modern take on the sash window, the Bereco Contemporary Range combines clean lines with the same vertical sliding operation. With a more minimalist appearance and slim profiles, these timber windows are suitable for newer properties or those blending old and new architecture. Despite the sleek look, they retain all the energy efficiency, security and quality expected from the Bereco brand.

Installed by Local Experts

At South Lakes Windows Ltd, we’ve installed sliding sash windows in homes across Kendal, Lancaster, Morecambe, South Lakes, Kirkby Lonsdale, and beyond. Our experience with older properties, listed buildings and sensitive areas means we understand the practical and visual requirements of sash window replacement. Every installation begins with a detailed home survey. We’ll talk through your needs, measure each opening, and recommend a product that suits your home’s style and meets local regulations. Our team handles all aspects of fitting, sealing and finishing to ensure your new windows look great and perform reliably.

Benefits of Sliding Sash Windows

Sliding sash windows offer excellent ventilation control, classic style and modern insulation when fitted by experienced installers. Whether you prefer timber or UPVC, all our windows are built to order, made to last and supported by a professional service.

• Traditional appearance with modern performance
• Smooth sliding mechanisms with tilt options for cleaning
• High-quality glazing and weatherproofing
• Suitable for both replacement and new builds
• Full colour, hardware and glazing customisation options available

Speak to Our Team

If you’re thinking of replacing or upgrading your sash windows, speak to South Lakes Windows Ltd. We’ll help you choose the right range for your home and provide a full installation service from quote to completion.

Contact us today to arrange a free consultation or request a quote