Sliding Sash Windows

Our sleek and decorative range of sliding sash windows is available in many different designs and finishes, ensuring a perfect match for your design and integration requirements.

Our traditional sash windows with glazing bars or astragal bars will finish off any new-build superbly. They match in perfectly on retrofit projects, always remaining sympathetic to a building's original design.

While our sliding sash range may look traditional, with all the appearances of a design from a by-gone era, it's future-proofed make-up means it will perform solidly well into the future. We use only Vista Therm Elite double glazing units from Carey Glass, argon filled with warm-edge spacer bars, giving a glass U-Value of 1.1 with double glazing. Options for single-glazing, slim double-glazing and high-performance triple glazing are also available.

We use the most advance joinery seals available, ensuring that your
Derg Joinery sliding sash windows provide a lifetime of comfort.

Extended warranties of up to 50 years are offered on our Accoya products. All our products are made in-house to the highest of standards, we can ensure only the highest of quality is produced.

Weights and Pulley

Using lead weights with waxed cord and pulleys in a range of different finishes, this elegant and eye-catching window will be the focal point of any project. With a huge range of options for profiles, horns and hardware, we are sure to have just the window to suit your project's requirements.

SPRING BALANCED WINDOWS

Spiral spring balanced windows retain the characteristic profile and designs of our weights and pulleys windows, while utilising springs to balance the sashes. Perfect for any new-build and can be retro-fitted very cost effectively.

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Heritage Windows

We offer a full restoration service for heritage windows. We can match any profile where full replacement windows are required

FULL RANGE OF OPTIONS AVAILABLE

Our sliding sash window range comes with a large range of options

Hardware

We use heritage fasteners used as standard. Alternatives available at an extra cost.

Full range of finishes available

Design

Range of horn styles available

Lambstongue/ putty/ ovolo mouldings

Traditional half cills available

Arched window head (including arched top sashes)