About Synseal


David Leng CEO

Founded in 1980, Synseal is the UK’s fastest growing and most dynamic window and conservatory systems manufacturer. Synseal remains fully independent and is owned by the people that run the company on a day-to-day basis following a successful MBO in February 2010. The management team drive Synseal’s commitment to provide the best products, at competitive prices and with unrivalled support for and interaction with its fabrication customers.

Our business vision is to be the UK’s first choice supplier for window, door and conservatory roof fabricators; providing good value, good quality products and services that meet the needs of their businesses to ensure that all our customer partners can be winners in today’s competitive marketplace.

David Leng CEO

The Nottinghamshire-based business is noted for its innovative engineering, effective marketing, and excellent customer service and satisfaction. Synseal regularly achieves top ratings in ‘Reputations Plus’ annual Benchmark surveys of fabricators’ views of their suppliers’ product quality and service performance. Numerous industry awards testify to Synseal’s commitment to be the best in all areas of its business.  Synseal believe that this is the most effective way of remaining a market leader and recent accolades include the prestigious Nottinghamshire Company of the Year Award for 2011, finalist in the Green Manufacturer of the Year Award at the ‘Insider Made in the Midlands Awards’ 2011, Midlands regional runner-up for Environmental Efficiency Award at the EEF Future Manufacturing Awards 2012 and winner of a Green Apple Environment Award which was presented at the House of Commons Westminster in November 2012.  In June 2014 Synseal won the prestigious ECMOD (Every Channel Mobilised Optimised and Delivered) Direct Commerce award for best B2B business with sales of £50 million+.

Latest News July 2018

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Company timeline

Synseal has evolved steadily as business over the years, and following a management buy out in 2012 we continue to go from strength to strength. Click + to expand


Company Timeline

Core products include three 70mm PVC-U window suites: Legend, Shield and SynerJy, an Evolve range of specialist fabricated and CE marked products which includes vertical sliding sash, patio doors and bi-fold doors, and market-leading conservatory roof systems in both PVC-U and aluminium including the best-selling Global roof which for sizeable wide-spanning projects can be supported by SkySpace portal frames.

Synseal is a member of the Glass & Glazing Federation incorporating the Conservatory Association and an associate member of the Home Builders Federation.

Send us in details of your recently finished jobs using Synseal products, we will pay for a professional photographer to visit the site and take a number fo images that you and Synseal can use to promote our companies.

All you have to do is contact us at Synseal with details of your finished installation and we'll do the rest!

Send details of your jobs to David Wigley at Synseal by telephone, email. david.wigley@synseal.com

Synseal's investment in environmental technologies shows in the products; the new ranges have been designed with 100% recyclability, improved performance and cost-effectiveness in mind for our customers. A tall proposition that required high tech solutions to achieve.

For more information why not visit our Window Energy Ratings site?


Gain access to the latest Synseal times issue here.  Industry news and market information for the window, door and conservatory industry from the leading extrusion company, Synseal.

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