With a unique six-chamber PVCu profile, EnergyPlus can achieve the lowest U-values, helping you contain and conserve heat within your property.
Liniar doors are fitted with high security multi-point locking as standard and our Patio and Bi-Fold Doors feature our patented ModLok™ technology
Liniar doors are easy to look after - just wipe with warm soapy water or our range of cleaners to keep them looking their best
Our Part M compliant low thresholds are available with all our doors and provide a perfect, easy access solution for family living
With a range of accessories including handles, hinges, midrails, knockers, letterboxes - plus a wide range of colours options - you'll be spoilt for choice
Liniar was first to launch a fully bespoke uPVC bi-fold door engineered, designed and manufactured in the UK, with the Standard bi-fold.
Two years later, the ModLok™ bi-fold system was introduced – a feat of engineering, with a combined lock and reinforcement system giving it the ultimate in strength.
The Standard bi-fold is ideal for apertures up to four panes wide, and comes in a wide choice of styles, opening configurations, thresholds, colours and finishes. Find out more about the Liniar Standard bi-fold here.
The Liniar ModLok™ bi-fold is a fully uPVC system with the added benefit of a patented exo-skeletal aluminium reinforcing system enabling it to span widths of us to 7 panes wide. Find out more about the Liniar ModLok™ bio-fold system here.
Both Liniar uPVC bi-folds are made from the same high quality lead-free materials and fully guaranteed.