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FREE DELIVERY ON ORDERS OVER £350.00
FREE DELIVERY ON ORDERS OVER £350.00

Heritage Sliding Sash Windows

Preserving Architectural Character

Our Heritage Sliding Sash Windows are designed with the slim profiles and detailing that respect the look of traditional sash windows, while meeting modern standards of performance. Each window is made from sustainably sourced timber and finished with care to suit the style of your property.


Key Features

  • 40mm mid‑rail

  • 14mm slimline heritage double glazing

  • 9mm external beading

  • 24mm solid through‑bars

  • Traditional premium hardware

  • 160mm frame depth

  • Made‑to‑measure, replicating period elegance with modern comfort and efficiency


Opening Mechanisms

Spiral Balance A discreet modern system using pre‑tensioned springs hidden within the timber frame. Smooth and reliable, ideal for homes with smaller reveals or restricted spaces.

Cords and Weights A refined version of the traditional pulley mechanism, commonly found in Georgian, Victorian and Edwardian homes. This option retains the authentic movement and appearance of classic sash windows.

Horns can be produced to replicate existing windows if required.


Heritage Glazing

Our slimline glazing maintains the delicate proportions of traditional sash windows while improving thermal efficiency.

Double Slimline Heritage Glazing – 14mm (4‑6‑4)

  • Float glass (non‑toughened both sides) – Ug 2.1 W/m²K

  • Toughened glass (toughened both sides) – Ug 2.1 W/m²K

Vacuum‑filled units are available on request.


Finishing Options

Our Heritage Sash Windows can be finished in over 45,000 colours, allowing us to match virtually any architectural palette. Dual‑colour and mixed‑finish options are available for projects requiring different internal and external tones.

Each window is completed using our advanced finishing system: a preservative base coat, followed by three spray‑applied coats of microporous paint. Applied in our purpose‑built spray booth, this breathable coating provides a smooth, consistent finish with long‑lasting protection while preserving the character of traditional joinery.


Options and Specifications

Timber Species Redwood (with hardwood cills and beads), Accoya, Sapele, Oak, Douglas Fir, and other species available on request. FSC‑certified timber options offered.

Glazing Slimline 14mm heritage glazing (4‑6‑4) and vacuum glazing. Acoustic, laminated safety and toughened glass options also available.

Hardware Available in a wide range of finishes including chrome, satin chrome, brass, black, antique brass and more.

Factory Finishing Single or dual‑colour paint, stained finishes, and full custom colour matching.

Bespoke Capabilities Profile matching, CAD drawings, conservation‑grade joinery, arched and shaped frames, custom mouldings and trims.


Lead Times

Typical lead time: 6–8 weeks, confirmed at quotation stage depending on project size and specification.


Enquire Today

Request a Quote

Send us your drawings, measurements or project details and we will provide a fast, competitive quotation.

Prefer to email us directly: info@timbermouldingsdirect.co.uk

FAQ

Heritage Sliding Sash

Are Heritage Sliding Sash Windows suitable for listed buildings?

Yes. They are designed to replicate traditional proportions and detailing, with slimline heritage glazing or vacuum glazing available to meet conservation requirements.

What timber options do you offer?

We manufacture in Accoya, Oak, Sapele, Redwood (with hardwood cills and beads), and other species on request. All timber is sustainably sourced, with FSC‑certified options available.

Can you match existing window details?

Yes. We can replicate horns, mouldings, and profiles to ensure consistency with your existing windows and the character of your property.

What glazing options are available?

We supply slimline 14mm heritage glazing (4‑6‑4), vacuum glazing, acoustic glazing, laminated safety glass, and toughened glass.

Do you supply dual‑colour finishes?

Yes. Windows can be factory finished in single or dual colours, matched to RAL, Farrow & Ball, Little Greene, and other major paint brands.

Do you deliver across the UK?

Yes — nationwide delivery options are available.

What hardware choices are available?

A full range of hardware is offered in finishes such as chrome, satin chrome, brass, black, and antique brass.

What is the difference between cords and weights and spiral balance?

Cords and weights replicate the traditional pulley system found in Georgian, Victorian, and Edwardian homes. Spiral balance uses discreet pre‑tensioned springs concealed within the timber frame, ideal for properties with smaller reveals.

What are your lead times?

Lead times vary depending on product type and workload, but we aim to provide fast quotations and efficient manufacturing.

Where are your windows manufactured?

All of our timber windows are manufactured in the UK with precision and attention to detail.