Liniar UPVC windows and doors — a multi-chambered profile engineered for strength and thermal efficiency, in casement, flush sash, tilt & turn, French, bow & bay and Resurgence 80mm window styles, plus residential, French and bi-fold doors on the same system.
Trade & DIY welcome — open a trade account for our best pricing, or buy individual orders at counter rates. Standard White and our standard foil colours are typically 5 working days. Other colours and configurations — ask us for the current lead time.
This page covers our full range of Liniar UPVC windows and doors — see our UPVC windows page for our wider window range, or our PatioMaster UPVC Sliding Patio Doors for patio doors.
Liniar's standard casement window, available in a Standard 4-chamber or EnergyPlus 6-chamber profile, with U-values as low as 0.81 W/m²K and energy ratings up to A++. PAS24 and Secured by Design available as options, with Part Q compliant hardware. Fully customisable with a wide choice of foils, glazing bars and hardware, backed by a 10-year guarantee.
Liniar's flush sash window gives the look of a traditional pre-1932 timber window, with the sash fitting flush into the frame rather than overlapping it. Available with sculptured styling, with the same multi-chambered profile performance as the rest of the Liniar range, and backed by a 10-year guarantee. For the deeper 80mm flush sash profile, see Resurgence below.
Liniar's 80mm flush sash window, sitting flush to the outer frame for a timber-alternative look. U-values as low as 0.84 W/m²K, A+ energy rating, acoustic performance of 37(-2;-5), PAS24, Secured by Design and Part Q compliant. 10-year guarantee, in a wide range of woodgrain foils.
A side-hung window that tilts inward for ventilation or opens fully for cleaning access and as a fire escape. Standard 70mm profile, or Zero|90 (90mm, Passivhaus-certified) for enhanced thermal performance. Sculptured or chamfered styling, with Liniar's patented bubble gasket. PAS24 and Secured by Design available as options.
Both sashes open fully from the centre with no central bar, available on casement, tilt & turn, flush sash or Resurgence profiles. Accredited to BS EN 12608-1 and PAS24, with Liniar's patented bubble gasket, woodgrain foil finishes and an astragal/Georgian bar option. 10-year guarantee.
Bow and bay window configurations across casement, tilt & turn, flush sash, Resurgence or Zero|90 profiles, with a wide range of pole angles. Accredited to PAS24 and Part Q, backed by Secured by Design, with energy ratings up to A++ (double or triple glazed) and a 10-year frame guarantee.
The focal point of any front or back entrance, available in three Liniar UPVC door types: standard 70mm UPVC, 70mm flush UPVC (ModLok, matching flush sash and Resurgence windows), and 90mm Zero|90 for enhanced thermal efficiency. Standard or EnergyPlus profiles, chamfered or sculptured styling, double or triple glazing, a choice of 8 threshold options including Part M-compliant for accessibility, and a stable-door style with a separately-opening top section.
An attractive alternative to bi-fold or sliding patio doors where the aperture is wider than a single door. A pair of doors with a 'floating' central mullion fixed to the slave door, opening either inwards or outwards for a wide, fully opening expanse. Available as two 70mm UPVC options (standard or flush), or a 90mm Zero|90 ultra energy-efficient UPVC option. Threshold options vary by system, including Part M accessible options.
Liniar was the first UK company to create a bespoke UPVC bi-folding door, with the second-generation ModLok bi-fold winning a Queen's Award for Innovation. Standard UPVC bi-fold and ModLok (Secured by Design) options, folding to one side or splitting both ways, with one panel usually set up as an everyday access door.
View our full UPVC Bi-Fold Doors pageEvery Liniar window and door style above is available in Standard White plus a range of woodgrain foil finishes and hardware colours. Our standard foil colours are shown below — other Liniar foils can be ordered in, ask us for the current lead time.
Standard Foil Colours — typically 5 working days
Swatches are an on-screen approximation only — always check a physical sample before ordering. Standard White and the standard foil colours above are typically a 5 working day lead time. This colour range applies to Liniar UPVC windows and doors only — PatioMaster, Eco Slide and VEKA have their own colour options.
Beyond our standard foil colours, Liniar's wider foil range can be ordered in on request — ask us for the current lead time.
Full Liniar product brochure and energy-performance specification sheets for our 70mm reversible, 80mm Resurgence flush sash and Zero|90 casement window systems — everything needed to specify against Building Regulations.
Open Liniar brochure Open Energy Performance Handbook