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The Liniar range of lead-free PVCu products is designed and manufactured by HL Plastics at its state of the art factory in Derbyshire. Products include lead-free uPVC windows, doors, bi-fold and patio door sets and conservatories, as well as decking, fencing and piling and retention systems. Liniar invests in product design and development to ensure the latest technology is utilised in advance of legislative requirements. Liniar windows achieve Windows Energy Ratings of A++ with ease, using cost effective double glazing. Explore the brochures and case studies to find out why Liniar products are perfect for large and small projects alike, offering more benefits than other uPVC systems.
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Product catalogue
The full range of Liniar PVCu products, with consumer-facing benefits - including energy efficien...
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Product catalogue
The Alumina bi-fold is a true aluminium bi-fold with U-values as low as 1.0. Fully sculptured and...
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Third party approval
Liniar’s deckboards have obtained a Class 1 Fire Test Certificate to BS476:Part7:1997.
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90 mm PassivHaus Window
PVC-U casement window.
- L10 Windows/ Rooflights/ Screens/ Louvres
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Aluminium Bi-fold Door
Aluminium bi-fold door.
- L20 Doors/ shutters/ hatches
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Aluminium Flush French Door
Aluminium flush French door.
- L20 Doors/ shutters/ hatches

Image gallery

Alumina Bi-Fold Door
Alumina bi-fold doors with Liniar windows in grey
Bay Window
Bi- Fold Window
Casement Window
Decking by Liniar

Quality Assurance

Liniar is certified to the following Quality Assurance schemes/standards:
PAS 24: 2016 PAS 24 Enhanced security performance requirements for door assemblies. Single and double leaf, hinged external door assemblies to dwellings
BS EN KM 33904: 2015 PVCU Profile - Enhanced Security Windows System Supplier
PAS 23-1: 1999 PAS 23-1 General performance requirements for door assemblies. Single leaf, external door assemblies to dwellings
BS 7950: 1997 7950 Specification for enhanced security performance of windows for domestic applications
Secured By Design

Trade names

Alumina bifold door
Alumina flush door
Alumina French door
Alumina residential door
HL Plastics
HL Plastics extrusion
Linar UPVC profile
Liniar 7016
Liniar 70mm window
Liniar 90mm window
Liniar A++ window
Liniar ancillaries
Liniar anthracite
Liniar A-rated window
Liniar balustrade
Liniar bay window
Liniar bevelled suite
Liniar bifold door
Liniar bifold window
Liniar bow window
Liniar case study
Liniar casement window
Liniar chamfered suite
Liniar cills
Liniar composite door
Liniar conservatory
Liniar conservatory roof
Liniar decking
Liniar Edwardian conservatory
Liniar elevate lantern roof
Liniar energy plus
Liniar energy plus 70mm
Liniar energy plus 90mm
Liniar fascias
Liniar fencing
Liniar flush sash window
Liniar French door
Liniar French window
Liniar gable conservatory
Liniar Georgian conservatory
Liniar installation supplies
Liniar lantern roof
Liniar lean to conservatory
Liniar low threshold
Liniar mock sash horn
Liniar modlok bifold door
Liniar modlok patio door
Liniar ovolo suite
Liniar part B
Liniar part F
Liniar part L
Liniar part M low threshold
Liniar part Q
Liniar passive house
Liniar passivhaus
Liniar piling
Liniar profile
Liniar PVCu profile
Liniar PVCu system
Liniar residential door
Liniar resurgence flush window
Liniar reversible window
Liniar sculptured suite
Liniar soffits
Liniar spec guide
Liniar specifiers guide
Liniar tilt and turn window
Liniar UPVC system
Liniar wind loading
Liniar zoom roof

Contact details

Flamstead House,
Denby Hall Business Park,
Derbyshire, DE5 8JX
Tel +44 (0)1332 883900
Fax +44 (0)1332 883901

Alternative contacts

Business Development
Charlotte Curtis
Technical Support
Carl Buckley