Sliding Sash Windows

Traditional Charm, Modern Performance
Sliding Sash windows from Mumford & Wood combine traditional, distinctive styling with the benefits of modern engineering, delivering exceptional durability, longevity, and timeless appeal. Expertly manufactured from sustainably sourced timber, our timber Sliding Sash windows are suited to a wide range of properties, from contemporary new builds to period homes where preserving authentic features and architectural character is essential.

Conservation Range

Classic Range

Spring Sash Windows

In conservation areas, and in more modern buildings where the structure cannot accommodate the rebate of the traditional box sash, but where the spring balance is not considered visually authentic, we have designed a simple box cover that completely conceals the spring balance. This allows the vertical sliding sash window to be even more in keeping with traditional appearance and has the added advantage of allowing quick, easy and efficient maintenance.

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View Spring Sash Specifications

NBS Asset

Conservation Range

Classic Range

Heritage Range

Box Sash Windows

A favourite with architects, planning authorities and preservation societies, the Box Sash uses a traditional system of cords, weights, and heavy-duty ball-bearing pulleys and pre-stretched nylon cords. Distinctive deep moulded internal profiles are available in a variety of options with elegant glazing bars to match whichever style you choose.

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View Box Sash Specifications

NBS Asset

Timber Sliding Sash Windows

Customisable Sliding Sash Windows, Built for You

Rich in detailing, our sash windows are available in a wide range of glazing options, from historic, single glazing through to triple glazing. Specialist glass is available to address acoustic, thermal and aesthetic requirements to suit the requirements of your project.

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Timber Sliding Sash Windows

Your Questions, Answered

Frequently Asked Questions

Here you'll find concise answers to common questions about our product range and services. If you can't find what you're looking for, our expert team is always here to help.

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CAD DRAWINGS AVAILABLE IN THE RESOURCE CENTRE

HIGHLIGHTED CASE STUDIES

Multi-Plot Development

Pair of Family Homes Elevated by Timeless Timber Windows & Doors

We were delighted to once again collaborate with Surrey-based developer Harvey Corston on his latest residential project, a partnership that continues to grow from strength to strength.

Building Renovation

New Cambridgeshire Barn Reflects Timeless Rural Design

Nestled within peaceful farmland in Cambridgeshire, the Bourne family, together with local developer Shane Thomas, has transformed a once-unused barn into a beautiful, barn-style family home.

Building Renovation

Agricultural Barns Transformed into Desirable Rural Homes

Over the course of 15 months, David Chidwick of L&L Homes oversaw the transformation of a collection of agricultural barns and outbuildings in rural Petworth into a series of elegant, character-rich family homes.

New Build

Suffolk Self-Build Home Celebrates Craftsmanship & Character

With nearly a decade of experience specifying Mumford & Wood products on commercial builds, self-builder Mr Keeble didn’t need to deliberate when it came to choosing timber windows and doors for his own home.

New Build

Georgian-Inspired New Build Boasts Wooden Windows & Doors

Set in a sought-after Surrey town, this elegant new build is the result of one homeowner’s determination to create her dream home, inspired by the charm and symmetry of Georgian architecture.

New Build

Suffolk Cottage Redesigned for Family Living

With decades of experience in property development, Mr Robertson knew exactly what he wanted when it came time to create his own forever home. But finding the right opportunity wasn’t straightforward.