Since 1991 First Degree Systems has led the way with innovative software for the window industry. We are the lead architects of the most comprehensive fenestration software for the industry.


Our products can be deployed at all business levels, whether you are a small start-up business or a large scale manufacturer of multiple product types, we have a scalable solution for you to streamline process and make you more profitable!

Our solutions


Our state of the art architecture will allow you and your customers to access data virtually anywhere, on virtually any device. All centrally hosted on our super secure servers.

Data is stored in our super secure server farm located here in the UK. With our specialist hardware at one of the UK’s leading data centres your data will be kept safe and secure.

The clear advantage of our cloud solutions is that all the data processing is done on our state of the art hardware, all you need is an office specification pc with an HTML5 browser and you’re good to go!

“Window Designer 8 represents the very best solution for today’s busy fenestration software needs. Covering multiple products Including PVCu, Aluminium & Timber.”

“Fengo2 the industry leading touch interface for Window Designer. Bringing simple touch screen options to Window design, sales and survey with easy deployment options including iPad, Web and Window Designer overlay.”

“Powerful metrics, integrated Window Designer CRM and more. Unleash the power with Zandi’s cloud based abilities. Analyse sales, review quotes, and observe trends. Zandi allows customers to keep their finger on the pulse and have critical data presented in a live format.”