Why we choose to install Liniar uPVC doors as standard

Easily the focal point of any home, a front door sets the tone for a home. Liniar uPVC residential doors are the perfect compliment to Liniar windows, having evolved over the years to offer more to our customers.

With more than 500 years combined experience in the window industry, the range of Liniar window and door frames are manufactured, supported and designed by an innovative, industry-leading team.

In todays world, it’s hard to find a door and window frame manufacturer who truly cares enough about their product or customers, our Liniar manufacturer supports us and our customers with their own engineering team which will come to rectify any issues with any of their products professionally and in accordance to their guarantee, either on site or at the customers home address. This is a service invaluable to us as installers.

Thermally Efficient

Liniar’s market-leading, multi-chambered uPVC residential doors effortlessly achieve low U-values for high thermal efficiency. A Liniar residential door will help to increase the heat retention of your home.

A Greener Choice

The profiles used in Liniar casements windows deliver high energy savings for the homeowner at a cost effective price. Liniar uPVC window systems are capable of achieving WER (Windows Energy Ratings) A+12 with cost-effective double glazing – and a U-value as low as 0.8W/m²K (with triple glazing).

British Made

Liniar doors are made from lead-free PVC, which is extruded in Derbyshire at HL Plastics extrusion plant. The factory boasts the largest PVC mixing plant in the UK and is one of the largest employers in the region. Continued investment in the facilities keeps Liniar at the forefront of innovation


Frame Colors to Choose From

Our business method


Fair Price

We keep our prices low by passing on the trade cost of your new windows and doors and only charging a standard installation cost.

Highest Installation Quality

Our installers have a minimum of 15 years full-time installation experience and are customer approved and recognised.

Highest Product Quality

We only install the best products, which is why we only install ROCKDOOR composite doors and Liniar uPVC windows and doors.

The Best After Sales Care

Our customers in need are our top priority. We call same day to all call outs if required, otherwise at a time to suit yourself.

Reliably Professional Everytime

Our quality work is repeated time and time again, because all our work is carried out by the same 2-man expert installation team!

Registered Waste Carriers

We recycle all your old windows and doors professionally, ensuring all waste is filtered and recycled according to strict regulations.

uPVC Doors

With literally hundreds of styles available, the only limit is your imagination. Whether you’re looking for a new energy efficient front or rear door, we can tailor these doors to your specific requirements, backed by a 10 year guarantee.


Rockdoor composite doors are the strongest doors on the market, boasting superior build quality and longer guarantees, they’re the only option you should consider when shopping for a composite door. We offer unbeatable prices, too!

Bi-folding Doors

Our aluminium bi-folding doors are secure, stylish and built to last with marine grade coating and stainless accessories. Choose from a combination of opening styles and colour options, with laminated glass as an extra security upgrade.

French & Sliding Doors

With the introduction of Rockdoor composite french doors, theres now more choice than ever. No longer are french doors a weak spot for burglars, unless they brought a heavy-duty chainsaw and plenty of spare time!