Timber Windows

Crafted timber windows for every project

Dekko’s timber windows are manufactured using time-honoured joinery methods and modern production standards. The range includes sliding sash, dual turn, casement and Heritage sash styles – all made from multi-layered engineered timber to help prevent warping and rot. Every unit is factory-finished with microporous coatings and multiple coats of paint for long-lasting protection.

Designed with both form and function in mind, these wooden windows deliver peace of mind, excellent energy performance and versatile styling options. Whether for period homes or new builds, they offer a robust and attractive solution for any installation, and pair perfectly with our range of timber, uPVC and aluminium doors.

Dual turn windows

Timber dual turn windows combine the look of traditional sash windows with the convenience of modern design. Each sash opens fully, making cleaning and ventilation effortless – perfect for upper-floor applications. Built from robust engineered timber and finished with durable coatings, these windows offer long-lasting resistance to rot and weathering.

Their energy-efficient glazing and reliable locking systems provide security and comfort in equal measure. With a wide choice of colours and furniture options, dual turn timber windows are a practical and stylish solution for installers working on both heritage and modern properties.

Casement timber windows

Our timber casement windows bring authentic craftsmanship to any setting, while delivering the performance expected in modern homes. Built from engineered timber to resist warping and rot, these windows are available in a variety of styles including flush and storm-proof configurations.

Each unit is factory-finished with weather-resistant coatings and comes fitted with high-spec hardware and multi-point locks. From traditional cottages to new-build homes, these casement timber windows offer the perfect combination of classic aesthetics, energy efficiency and long-term durability – giving installers and homeowners complete peace of mind.

Sliding sash windows

Ideal for period properties, our sliding sash timber windows combine the timeless appeal of heritage design with the benefits of modern construction. Made from engineered timber for enhanced strength and stability, they offer smooth vertical operation and are finished with microporous coatings to prevent rot and degradation.

The slim sightlines, traditional horn detailing, and optional glazing upgrades allow you to meet both aesthetic and performance requirements with ease. These sash windows are a reliable and authentic solution for any homeowner seeking classic style with durable, low-maintenance performance.

Heritage sash windows

Specifically designed for listed buildings and properties in conservation areas, Heritage sash timber windows offer authentic styling with the performance required for modern living. Featuring traditional profiles, putty-line details, and slim sightlines, they replicate original wooden windows with exceptional accuracy. Built from stable engineered timber and treated with high-grade coatings, they are resistant to warping, moisture and UV damage.

Available with double or triple glazing, they offer outstanding energy efficiency without compromising on period charm. These Heritage sash windows are the ideal choice for sensitive refurbishment projects requiring both visual authenticity and long-term durability.

How can Dekko help you?

At Dekko, we work closely with trade professionals to supply premium timber windows tailored to each project’s needs. With expert support, reliable lead times and a broad, high-quality product range, we make it easy for you to deliver exceptional results. Whether you’re sourcing wooden windows for a renovation, new-build or conservation project, you can rely on Dekko to provide durable, high-performance products and dependable service from start to finish.