Add the wow factor  to your home Imagine being able to open up an entire wall of your room, creating space and letting fresh air and natural daylight flood into your home.
Whether you have a bedroom with Juliette balcony, a dining kitchen, a conservatory or an orangery,    bi-folding doors can provide a stunning alternative to patio or French deal windows bi-folding doors were the first fully bespoke PVCu bi-folds to be designed, engineered and made in the UK – and we believe they are still the best. Available in a wide choice of opening configurations and colours, your best deal windows bi-fold has ultra-slim sightlines, providing your room with a clean, modern appearance. 
Safety features include the innovative low threshold option for family friendly and wheelchair use. What’s more, the best deal windows bi-fold offers high energy efficiency, combined with the best security features on the market – bringing you a modern space- saving solution for your home that will definitely give it the ‘wow’ factor.

One of the most effective ways you can save energy within your home is through installing energy efficient windows, doors and roofs. best deal windows frames outperform most of the other leading brands in the UK when it comes to thermal efficiency – mainly due to our innovative PVCu multi-chambered profile design. The thermal efficiency of a door is measured in U-values, which demonstrate how effective the door is at preventing the transfer of heat into and out of a building. The lower the U-value, the higher the doors’ effectiveness at keeping the heat inside your home when it’s cold outside. The standard best deal windows bi-folding door range can achieve a U-value of 1.3 W/m2K when fitted with cost effective double- glazed units, which means you’ll be able to enjoy a warmer and quieter home as well as lower energy bills. And for even greater thermal efficiency, the best deal windows ModLok bi-folding range can be fitted with triple glazing, reaching an impressive U-value of 1.0 W/m2K

The best deal windows bi-folding door range is beautifully designed for modern living.
Built to create the perfect summer ambience, it’s equally as important that our doors withstand the worst of the British winter weather.  We’ve rigorously tested our bi-folding doors to make sure they exceed the appropriate British Standards for weather performance. We also subject our doors to a regime of robot cyclic testing in our purpose-built laboratory, making sure all mechanical parts will stand up to the repeated operation necessary for daily living. 

Your home, your choice The best deal windows range offers complete flexibility, whatever the room or the size of opening you need. 
Manufactured in our decorative sculptured profile, best deal windows bi-folding doors are available in a wide variety of colours. With options from two to seven panes, all with our beautiful, super-slim sightlines, you can also choose how many doors fold back to each side of the frame. The best deal windows standard bi-fold door range is available in a wide range of configurations whilst the best deal windows bi-folding door range offers an even greater number, due to its additional strength and rigidity (see full table opposite). 
Combining aluminium reinforcing within the           bi-fold doors and frame with a high security locking mechanism, the best deal windows bi-fold offers all the structural benefits of an aluminium door set combined with the thermal benefits of PVCu – bringing you the best of both worlds. Our door pane numbering works like this:

•    The    first    number    shows    the    number    of    doors    in    total within the frame.

•    The    second    number    shows    the    majority    of    doors    folding back to either left or right. •    •   The    third    number    shows    the    balance    of    doors    opening in the opposite direction. 
A brand new concept in locking technology, best deal windows has been developed by best deal windows to enable even wider door configurations.