Liniar launches the UK’s most energy efficient PVCu window and door system – Zero|90.


Liniar celebrates being ‘a part of something bigger’ with group wide Quanex branding refresh.

SwitchBoard Ultra solid core deckboards are launched.

Liniar moves towards an electric fleet of vehicles.


Liniar achieves phenomenal growth, hitting its 2024 strategic target 3 years early.

SwitchBoard, Liniar’s double-sided PVCu composite deckboard launched to great acclaim.

Liniar wins a coveted G Award – Covid-19 Hero.


Liniar closes its doors for 6 weeks during the COVID-19 pandemic and begins manufacturing protective visors for key workers – winning two awards as a result.

Despite supply chain disruption and soaring demand, the year ends with the business fully back on track.



The UK’s first double-rebated flush sash PVCu window, Resurgence is launched, winning Product of the Year at the 2019 National Fenestration Awards.

ISO14001 accreditation is achieved and Liniar is a finalist for the Sustainability Initiative of the Year 2019 at the G19 Awards.

Liniar launches Elevate Squared – a perfectly square version of the traditional rectangular lantern roof.


Roger Hartshorn passes on the running of the Group to Martin Thurley after a 2-year handover.


The fully reversible window is launched, with the Elevate lantern roof following later in the year. Fencing also became available in two new finishes – woodgrain foiled and composite!



Liniar earns a Queen’s Award for Enterprise in Innovation for the ModLok™ bi-folding door.


Roger Hartshorn attends a reception at Buckingham Palace to meet Her Majesty.


EnergyPlus90 is launched.


178,000 ft² warehouse is opened.



Alumina, the first fully foiled aluminium bi-fold is launched.


178,000 ft² warehouse is built.



Quanex Building Plastics acquires total ownership of Flamstead Group.


New 178,000 ft² warehouse to be built to facilitate further growth.



Prime Minister David Cameron visits. ModLok™ bi-fold launched. Liniar roof kits and the Flush Sash system are introduced.


New lamination plant is opened along with 60,000 tonne mixing plant.


The Liniar brand identity is refreshed.


60,000ft2 warehouse is built to keep all products on one site.


Liniar Patio with ModLok is launched.


Liniar Zoom conservatory system is launched.


Tarpey Harris launches a tool maintenance department.


Liniar introduces the first uPVC bespoke bi-folding door Liniar EnergyPlus profile is also launched.


Sculptured Liniar window system is launched.


New Liniar hand rail and recycled deck system launched.


Brand new chamfered Liniar window system is launched combining strength & energy efficiency.


All companies relocate to new factories in Denby.


The Liniar fencing and gravel board system is launched.


Construction begins on the new factory for HL Plastics and Tarpey Harris in Denby.


The Liniar brand name is introduced to the Flamstead Group.


Roger Hartshorn and Mike Bosworth form Flamstead Holdings to buy back HL Plastics and Tarpey Harris.


Tarpey opens wax injection dept.


New 140,00ft2 warehouse built in Alfreton.


Tessenderlo Group acquires 100% of the group, after previously acquiring 75% in 1998.


HL Plastics develops Suredeck safety platform.


Eurocell develops Pinnacle conservatory roof & co-extruded 70mm Logic system.


10 strand foam trim tool developed.


4400 tonne raw material mixing plant is installed at Clover Nook.


HL Plastics develops verandah system and Eurocell sliding patio door.


The group consisting of HL Plastics, Tarpey Harris and Eurocell Building Plastics is renamed Fairbrook.


Eurocell production outgrows Little Eaton and moves to new purpose built factory in Alfreton.


Eurocell warehouse and distribution is relocated to 63,000ft² site in Cotes Park, Alfreton.


John Wall retires, Mike Bosworth, Roger Hartshorn, Sir John Harvey Jones, John Wall and Dan Desmond outside HL Plastics, Little Eaton.


HL Plastics designs and launches new window system – Eurocell Ultimate 70mm System.


First trade centre opened in Dorset.


Godfrey Harris retires.


HL Plastics launches a range of Plastic Piling from recycled uPVC and develops in house injection moulding.


After launching a range of Cellular foam building products, HL Plastics creates the Eurocell brand name to supply these to the growing base of windows customers.


HL purchase Tarpey Harris Precision Toolmakers to gain access to the latest toolmaking technology and control supply chain for future development.


Management buyout is led by Roger Hartshorn and Mike Bosworth.


HL moves to a new purpose built 17,000 ft factory in Little Eaton, Derbyshire.


Trade extrusion company started by Godfrey Harris and Stuart Leese in a 10,000 ft factory at Riddings in Derbyshire.

QNX Passive House Secured By Design Corgi Fenestration PAS24 PAS12608 BBA BPF NBS bhhpa Bali NCC Queens Awards Sustainable Midlands Supporter

Enter Your Postcode To Get Directions!

View Full Map, Share & Print
Contact Us