Our Bi-fold doors combine sophisticated style and elegance with the very latest in high performance and high security multi-point locking systems. Manufactured and assembled here in the UK our unique 8 point locking system conforms to demanding, police preferred 'Secured by Design' standards.
Chamfered 20mm linear bolts offer smoother operating when engaging the lock, as well as giving maximum compression for increased weather resistance. Add deep throw 25mm security hooks - the deepest engagement available on the market today - and the lock delivers the best in both security and weatherproofing.
A gentle push is all it takes to create your new living space. The secret lies beneath each lightweight frame section where our unique free glide roller system makes opening and closing our Bi-fold Doors an effortless and satisfying experience.
Exceptional care is taken in designing our doors for durability and long-term performance.
Only ultra-high quality components, specially designed by us, are used in our Bi-fold door.
Every one of our skilled craftsmen takes pride in creating the best folding sliding doors money can buy.
That's why our doors are guaranteed by us to perform faultlessly for at least 20 years.
Each bespoke door set comes with a unique serial number that guarantees the doors at the property for two decades.
No other manufacturer of bi-fold doors guarantees their products for this length of time. So, embrace your new lifestyle with the solid reassurance of our unrivalled guarantee....and relax.
Grand Designs have over 25 years' experience delivering the highest quality products and services for residential properties and large scale commercial developments in in and around London.
As a customer of Grand Designs Windows and Conservatories Ltd, you are guaranteed a highly personal and professional service that prioritizes you and your needs. Our dedicated staff offer expert home improvement advice tailored to your individual budgets and requirements.
We offer bespoke and quality products and have an extensive range of windows, doors, orangeries and conservatories manufactured to the highest quality and with varying designs to suit your home.
Grand Designs also put your safety first, with features that exceed British standards to provide unrivalled levels of security. In addition, all our products are energy efficient and compliant with the latest regulations
Our builders and fitters are 100% insured and all our glazers are qualified with NVQ certificates. Call us today on 0208 450 2819 to book a free no obligation quote or use our contact form for more information.
Monday 8:00 am - 6:30 pm
Tuesday 8:00 am - 6:30 pm
Wednesday 8:00 am - 6:30 pm
Thursday 8:00 am - 6:30 pm
Friday 8:00 am - 6:30 pm
Saturday 8:00 am - 6:30 pm
Sunday 8:00 am - 2:30 pm
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