Made for trade windows and doors manufactured with industry-leading technology

The team at Window Supply Company has extensive knowledge and experience in the manufacture and supply of windows and doors to trade throughout Scotland.

Our range of products and services have been carefully selected and created with trade in mind. As a trusted supplier, our commitment is to high-quality products that deliver and a service you can rely on every time, services that make your job easier, increase your efficiency and maximise your profits.

Market-leading products

Window Supply Company is the largest manufacturer of the most technically advanced Liniar uPVC profile in Scotland. The Liniar profile has been completely designed from scratch to take advantage of the latest developments in window engineering technology and was the first brand new profile of its kind in the UK in nearly two decades.

Liniar's patented designs were built with the installer in mind and are:

  • Innovative
  • Energy efficient
  • British made
  • Environmentally friendly
  • Simple to fit

Save time on installations and have peace of mind knowing you're using only the highest quality of trade doors and windows. With a wide range of products, we can manufacture and supply whatever you need for a job, including:

Window, white


French Door, White


As a trade supplier, we know that you need quality products delivered on time and in full. Our logistics are managed and controlled in-house by our fleet of vehicles, and goods can be delivered to your job premises, worksite or a local trade counter.


With our network of branches located throughout Scotland, we pride ourselves on delivering a local service to tradespeople. You will find an impressive window and door showroom with complimentary refreshments, free skip service, and free storage for upcoming installations at every trade counter. Our knowledgeable and friendly teams are on-hand with expert advice, delivering a first-class service at every step of the job.

Find out more

To find out more about becoming a trade customer, simply contact us below for more information. You can look at the range of trade doors and trade uPVC windows online to find the right products for the job. You can have peace of mind knowing that with Window Supply Company, you'll receive quality, speed and value, meaning that it is our job to make yours a success.