Timeless elegance, modern performance.
Box sash windows by Bifolding Door Factory combine the style and elegance of traditional design with modern manufacturing and the latest in material technology. Keep your home warm, secure and quiet, while enjoying the aesthetic advantage of these beautiful maintenance-free.
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Benefits of Box Sash Windows
- Draught and waterproof, our specialised twin gasket system ensures efficient weatherproofing for protection in all conditions.
- Fully customisable, our windows can be made to your exact size specifications (up to three metres), with various window bars and finishes available.
- Low maintenance, a simple wipe down will keep your box sash windows in perfect condition with little to no maintenance needed.
- Thermal efficiency, box sash windows offer excellent thermal efficiency with ultra-low U-values.
- Durability, our box sash windows are precision-built to last for years to come, able to withstand the elements.
- Noise-proof, the windows effectively block sound from outside for excellent acoustic performance.
- Glazing options, multiple glazing options are available, including single, double and triple glazing.
- Maximum security, with a range of security add-ons, you’ll sleep peacefully knowing your home is safe.
- Quality guarantee, our box sash windows come with a 10-year guarantee.
uPVC replicate the look and feel of traditional timber box sash windows but offer superior thermal efficiency, significantly lower maintenance, increased weather protection and improved home security.
This is an older style of box sash windows that uses heavy wood timber for the window frames. It is typically more expensive and heavier than uPVC and requires more maintenance.
Double-glazing refers to the choice of glass panes that are inserted into windows. Double glazing is an eco-friendly option for reducing your energy consumption and costs, as well as noise reduction and improved security.
If you live in a noisy area, the significant noise reduction benefits of triple-glazed box sash windows may be reason enough to go for this option. Other benefits of triple-glazing include thermal efficiency and reduced condensation.
Frequently Asked Questions
What is a box sash window?
Also called ‘sash and case’ windows or ‘hung sash’ windows, box sash windows have one or more sliding panels which each contain a pane of glass. In most cases, each frame has two sashes that both slide vertically, giving you the option of an opening at the top or bottom of the frame (or both). It’s ideal for ventilating a room as it allows hot air to escape and cooler air to be drawn in from outside for effective airflow.
Should I replace with uPVC?
Wooden sash windows look stunning but require ongoing maintenance and are prone to letting in the elements. Unfortunately, repairs are costly and often only temporary. A good alternative is to replace them with uPVC box sash windows for a solution that is more durable, completely weatherproof and can be customised to closely mirror the finish of a wooden box sash window.
What is the difference between box sash windows and sliding sash windows?
The difference between the two is mechanical, as aesthetically, the two window types look the same. With a box sash window, the vertical window box contains a system of pulleys and ropes, which make it easy to lift the sashes. They’re often used for larger windows. Sliding sash windows use spiral balances, a simple mechanism that uses springs instead of pulleys and ropes.
Explore Your Window Options
Being a popular option (and for a good reason), the ideal solution will depend on where you will be using them. Other popular window systems include:
Flush Sash Windows
Flush sash (or flush casement windows) finish flush with the external window face so that, when closed, the window sash creates an even contour for an elegant aesthetic. They’re a popular choice for contemporary projects as they offer a simpler, smoother design.
Read more about flush sash windows
Sliding Sash Windows
Sliding sash windows are often the best choice for decks, patios and other areas where an outward opening sash would get in the way. Often referred to as gliders or sliders, these windows typically refer to horizontal sliding windows and vertical sliding windows. They have a minimalist aesthetic as well as excellent functionality and require less maintenance than other styles.
Read more about sliding sash windows
Vertical sliding windows use a similar opening mechanism to horizontal sliding windows. Options include single-hung and double-hung windows and are a popular option for bathrooms and bedrooms.
Read more about vertical sliders
The Bifolding Door Factory Guarantee
Our windows are designed to fit your exact size and style requirements. We offer supply and installation throughout the UK, and each installed window comes with a 10-year product guarantee.
Box sash windows designed and manufactured in the UK, we offer the best box sash windows that are competitively priced, long-lasting, made-to-measure and bespoke for your requirements.
Our eco-friendly, industry-leading designs are as a result of over 30 years of experience in the industry offering personalised, long-lasting solutions for homes throughout the country.
We look forward to hearing from you.
If you’re looking for a trusted box sash company, we’re the team to call. We’ve successfully supplied and installed throughout the United Kingdom and are proud of the excellent reputation that we’ve built over the years.
For an experienced team and service with a smile, give us a call on Bifolding Door Factory. We’re here to answer your questions and will provide a no-obligation quote free of charge.