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Industry leading and impact tested Decalu88 aluminium bifold doors

The Decalu88 bi-fold delivers industry-leading u-values of as low as 1.4 when double glazed and 0.68 when triple glazed. The doors offer minimal sightlines, giving them a premium aesthetic. And with each sash capable of accommodating up to 200kg and up to 3m in height, the Decalu88 bi-fold door offers impressive design flexibility, while guaranteeing ultra-smooth running. Combined with a range of dual colour options, textured and metallic finishes, it’s the perfect bi-fold for any installation.

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The Decalu88 bi-fold boasts equal picture-frame sightlines on the sash and heavy-duty ultra-smooth running which accommodates an individual sash weight of up to 200kg. They are available in any single or dual RAL colour option, or in textured and metallic finishes.



Decalu 88 is a contemporary 88mm thermally efficient system featuring a pre-inserted gasket that avoids shrinkage and creates a flush frame, maximising clean sightlines. These doors are energy efficient, with u-values of as low as 1.4 when double glazed and 0.68 when triple glazed.



Decalu88 bi-fold doors are PAS24 enhanced security tested, thanks to their superior security credentials. They provide excellent levels of security, protecting any property from break-ins.

Expertly crafted bifold doors made to your exact requirements

At Dekko Window Systems, we manufacture all our doors at our Lancashire factory. We can create bespoke doors, designed and fabricated to your exact specifications. When you want to offer your customers high performance, style, and customisation, choose Dekko Window Systems as your trusted supplier.

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Decalu 88 Folding Doors to the garden

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Schedule your complimentary quote consultation with a nearby specialist consultant who will:

  1. Provide you with an exact, obligation-free quotation.
  2. Present creative suggestions and practical remedies.
  3. Display product samples.
  4. Perform essential measurements as required.

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Fast delivery and would highly recommend

"Ordered double glazed window for our shop. Dealt with Nathan on the Trade Counter, who was excellent and went above and beyond the usual customer service. Window was very well made and arrived with no problems. Fast delivery and would highly recommend."

Tony Spooner

The windows look fantastic

"Recently used Dekko Windows to supply the windows and aluminium bi-fold doors for our renovation project. We paid a short visit to their showroom where Rob and Neil were really helpful, showing us around and providing options for us. We were really happy with the whole process and the windows look fantastic. Would definitely recommend this company."

Richard Kennedy

Very happy with the level of service and products

"I've been using Dekko Windows for a number of years now and have been very happy with the level of service and products. Rob and Neil have never failed to get back to me promptly with quotes and lead times etc and Leon the delivery guy is always happy, friendly and helpful whenever unloading frames on site."

Peter Bain

Excellent service

"Excellent service. It's always a joy to deal with Rob, Neil and Leon. They always go out of their way to assist me with my projects and are very professional and friendly. Thanks again to the Swindon Dekko Team!"

Jordan King