top of page

80 Years

Staff Experience

Trade Discount


Why Window Fitters Use Us?

  • Liniar ENERGY PLUS SCULPTURED profile as standard on all Upvc windows&doors

  • Free Recycling of all glass and frames available to all customers

  • 24 Hour Priority Quote service via Whatsapp, simply send us a picture

  • Free Marketing materials

  • Discounted Workwear

  • Free Storage Facilities & 24/7 Access

  • Technical Advice & Aftersales Support 

  • 10 Year Profile Warranty - read the liniar guarantee here

Liniar EnergyPlus Logo.png
Why Us

Why We Use Liniar?

Technically Advanced
The technology used in many other PVCu window profiles

is at least 20 years old. Liniar’s profile was designed

completely from scratch in 2007 and is far more technically

advanced - built for today’s  exacting challenges.


British Made
Liniar profiles are extruded in Derbyshire at the HL Plastics  manufacturing plant, which boasts the largest mixing plant in the  UK. Continued investment in the factory and facilities keeps Liniar at the forefront of innovation.

Designed By Experts
The Liniar range is designed, manufactured and supported by a team with over 500 years’ experience within the window industry.


More Thermally Efficient
Liniar’s revolutionary profiles are far more thermally efficient than traditional PVCu window profiles. By removing unnecessary steel reinforcement, instead developing the latest in multi-chambered profile technology, we make sure the heat stays where it belongs – inside your home.


More Cost-Effective
Liniar profiles deliver even more energy savings for the  
homeowner. Liniar window systems are capable of achieving WERs (Window Energy Ratings) of A++, with U-values as low as 1.2w/m²K (DGU) and 0.8w/m²K (TGU).

Better For The Environment 
Liniar frames have always been 100% lead-free, well in advance of legislation.  Furthermore, all elements of a Liniar window are fully and easily recyclable at the end of its life.

Strong and Secure
Our windows and doors are tested to the latest security standards. PAS24 and Secured by Design were achieved with flying colours, making Liniar windows compliant to Part Q building regulations.

Fully Tested
Not only does Liniar carry out weather testing and security testing, it has invested in a robot for cyclic testing, giving customers peace of mind that their Liniar products will endure the rigours of daily living.


Beautiful Colours
Liniar’s coloured foils give the appearance of woodgrain and won’t peel or scratch off - and the whole Liniar range is  available in a wide choice of colours with an easy clean, low  maintenance finish.


It’s important to Liniar to prove its products are backed by the highest standards - Liniar windows and doors hold the  following accreditation:

Why Liniar
Document Library
bottom of page