Timber Windows Wooden Sash Windows Box Sash Windows
Go green with our environmentally friendly timber windows and wooden doors.

Box Sash Windows

Traditional Sash Windows are Wooden Box Sash Windows. These are the sash windows that are still being used in many buildings today, but were installed up to 100 years ago. These sash box windows have lasted the test of time and are undoubtedly the most simple and most reliable sashed windows available to this day.

With the addition of modern technology such as advanced double glazing with warm edge spacer bars and LowE glass, full draught proofing and durable wood protection, our sash windows are made much better than ever before.

We do not compromise on quality, our wooden sash windows made today; not only maintain their traditional appearance but also, ours take advantage of every possible technology. Do you want the best?

Traditional Sash Windows

Additional Features of our Timber Box Sash Window System:
    • no more rattles with our unique and flexible gasket system
    • much better sound insulation and energy efficiency with superior double glazing
    • with weights and pulley wheels
    • radius end metal pulley wheels with nylon cord that is strong enough to tow a car.
    • internally glazed with 17mm deep ovolo bead inside and a putty shape profile outside.
    • your choice in colour of metal finished accessories: fitch fasteners, D-Handles, lifting hooks & pulley wheels if applicable.
    • concealed weatherproofing gaskets to all sides so no wood slides on wood
    • 24mm double glazed glass, filled with argon gas, the most energy efficient possible with a u-value of 1.1.
    • factory spray finish
    • lambs tongue style external decorative horns, or choose your own style
    • engineered centres only, not visible faces, in solid timber (hardwood or softwood) to ensure no warping and no joining marks are visible to maintain the beauty of the timbers grain
    • exceeding UK standards.
    • child Locks / extra security available
    • arched or swept heads or arched frames
    • astragal Georgian bars at 22mm (made to look like separate glass units)
    • custom decorative horn designs to match anything
    • concealed trickle vents, fitted through the head of the frame
    • custom architraves or wall fillers
    • stained and / or lead designed glass (diamond lead or square lead)
    • CE MARKED EN 14351-1 2006+A1:2010  
    • 1.3 W/m2K U-value, measured using softwood
    • If you want a true heritage sash window; with slimlite 14mm glass and true putty glazing with separate glass units and slim 18mm Georgian bars, you must check out our heritage sash window.

Box Sash Windows with weights - Gallery

Box Sash Windows 101: All You Need to Know

Are you thinking of sprucing up your home with some gorgeous Box Sash Windows? If so, you’ve come to the right place. In this discussion, we’ll cover all the basics of sash box windows, from their traditional style to the modern materials used in their construction. So, if you’re looking for a quick primer on Box Sash Windows that will add value to your home, then you’ve come to the right place!

A Brief History of Box Sash Windows

Wooden sashed windows have been used in traditional British homes for centuries. During the 17th century, the traditional sash window was invented as a way to provide more ventilation and light into rooms that would otherwise be too stuffy and dark. By the 19th century, this traditional sash window had evolved into what we know today as the Box Sash window.

Box Sash windows are the quintessential classic style of window found in period homes, usually with two sashes that slide open vertically up and down within the frame of the window. Originally constructed from timber and single-glazed, Box Sash windows are renowned for their charming appearance as well as their practical use. Nowadays, these windows can be made from cheap alternative material like UPVC and can be double glazed for extra insulation and energy efficiency.

How Are They Constructed?

Box sash windows, also known as sashed windows, are an attractive and traditional style of window that has been used in homes for centuries. They consist of two sashes, one sliding over the other, and are usually made from timber.

The construction of box sash windows starts with the frame which needs to accommodate and hide the weights, which counterbalance the weight of the openers so the window can open and close easily.

The timber frame is usually made from either softwood or hardwood, depending on the type of window and the budget. Once the frame is constructed, it is fitted with a weather seal to protect it from the elements.

The next step is to attach the two sashes, or panels, to the frame. This is done by fitting them into grooves that run along the sides of the window frame. Modern box sash windows are typically equipped with metal weights for health and safety reasons.

Finally, the window is sealed by fitting special flexible gaskets between the sashes. This ensures that the window stays airtight and prevents drafts.

Box sash windows show off a unique and attractive style to any home. They are well-constructed and durable, making them a great choice for anyone looking to add a classic look to their home.

As always, we are here to help and advise our customers to make sure every project is a success – so please do Contact us for help.

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