Liniar uPVC Bi-Fold Doors
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Start A QuoteLiniar uPVC Bi-Fold Doors
- Thermally Efficient Multi-Chambered Profile
- High Performance Double-Action Gaskets
- Completely Lead-Free & Environmentally Friendly
- 100% Recyclable and British Manufactured
- High Security Locking System by Yale
- Up to WER A+14 Energy Ratings
Liniar uPVC Bi-Fold Doors
Ultra Trade Frames provide supply only Liniar uPVC bi-fold doors across East Anglia and the South East to trade customer. These intelligently engineered double glazed bi-fold doors use cutting edge design to minimise heat loss and maximise the opening area.
They are ideal for any project where customers require a stylish feature to expand their living space into the outdoors.
Our Liniar bi-fold doors are highly secure, which can be enhanced by the high performance Modlock™ range which offers even greater strength and rigidity, combining the structural benefits of an aluminium door with the energy efficiency of uPVC.
These thermally efficient doors come with extremely low U values. The standard door achieves a U value of 1.3 W/m2K, and the Liniar ModLok™ bi-folding range can be fitted with triple glazing, reaching a U-value of 1.0 W/m2K.
Adaptable Design
With a range of colour finishes and hardware options available, your customers will be spoilt for choice. To replicate timber, we provide foiled woodgrain-effect options, and they will never have to be treated, sanded or repainted. Also available are our flat grey frames, which emulate aluminium, while offering superior energy efficiency at a more cost-effective price.
Our range of Liniar bi-folding doors are bottom rolling, not top-hung which means no extra stresses are placed on the property’s lintel. Another design feature unique to these uPVC bi-fold doors are the slim hinges which have hidden fixings inside. Not only does this provide sleek lines but it also increases security, as it is impossible for them to be unscrewed externally.
Competitive Price
You can use our online quote calculator to get a quick and easy uPVC bi-fold doors price tailored to your specifications. It’s free to use and there’s no obligation. Our double glazed bi-fold doors prices are highly competitive and you can share the value we provide to your customers.
View our Bifold Doors Brochure
Liniar uPVC Bi-Fold Door Colour Options










Highly Secure
Our Liniar bi-fold doors are intelligently designed and inherently robust, giving you and your clients peace of mind when it comes to security.

Energy Efficient
With low U values, the uPVC bi-fold doors we offer will help save your customers money on their energy bills. High performance, and cost-effective.

Incredibly Accessible
We offer a range of thresholds for our uPVC bi-fold doors, including ultra low thresholds that enable easy access for wheelchair users.