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Synseal Company Overview

Going from strength to strength

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.
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+.
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.
  • In November 2011 Synseal acquired a large regional IGU producer to create Global Glass and further extend customer choice, in addition to joint-developing glass and frame solutions to optimise energy efficiency and performance. Global Glass Huthwaite now specialises in production of high quality sealed units for windows and doors.
  • In May 2012 Synseal added again to its brand portfolio with the acquisition of K2 Conservatories including Celsius performance glass. Global Glass Blackburn was subsequently established as a centre of excellence for roof glass sealed unit manufacture.
  • In April 2013 Synseal Registered Installer (SRI) business support was launched in association with sponsoring fabricators to assist verified installers to retail Synseal products to UK homeowners.
  • In July 2014 Synseal acquired the business and assets of Prospect Inc. Ltd, trading as Systems Glass, to create Global Glass Wigan and add a third IGU manufacturing facility to expand and strengthen glass supply operations serving northern regions of the UK.
  • In November 2014 Synseal acquired the trade and operating assets of the Litchfield Group’s UK window and trade extrusion and door businesses, formerly known as LB Plastics Ltd and Manse Masterdor Ltd, and established the renamed Sheerframe Ltd and Masterdor Ltd as wholly-owned subsidiaries of Synseal.
  • In November 2014 Synseal also launched WarmCore aluminium folding sliding doors, featuring innovative “warm aluminium” framing technology, which signals a new chapter in the company’s dynamic 34-year history.
  • Synseal is a member of the Glass & Glazing Federation incorporating the Conservatory Association and an associate member of the Home Builders Federation.

Be your own

Environmental Information

At Synseal we believe that by constantly improving our technologies and the ethos that runs through the business, an environmentally sustainable company can be achieved. Synseal is ISO14001 accredited which ensures all company environmental management systems comply and exceed government mandate. All quality systems are ISO9001 accredited which ensures all processes are constantly checked and improved upon, reducing waste and increasing efficiency.

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.

New ranges include the 100% recycled Envirosill. Constructed from Synseal waste products which are re-foiled to provide an aesthetically pleasing finish. The Recycled Reinforcement range can replace steel inserts in the profile and act as a 100% recycled thermal break reducing heat loss through the profile. Significant investment enabled Synseal to evolve the standard profile it sells to include five chambers. The five chambered profile acts as a heat loss break and can achieve thermally efficient 'A' rated windows without changing the glass specification.


You can't put a price on security.

You could count the cost of not choosing the most secure replacement windows and doors.

Our windows and doors come with the latest high-performance multi-point locking technology meaning you can rest assured that you’re keeping your home and family well protected. With a 14% increase in burglaries in 2011* its never been more important to make sure your home doesn’t become one of the statistics. We’re committed to finding the right security solution for your needs

We aim to make secure mean more

*Home Office statistics for England and Wales 2011

Product Quality

Product Quality

Making a change to your home? No doubt you are seeking the highest standard
of quality for your new PVC-U windows and doors.

So are the experts. Our windows have achieved accreditation from the British Board of Agrément,
the organisation that decides which building products are fit for purpose.

By selecting windows and doors manufactured from PVC-U rather than other alternative framing materials, you can be confident that these products will never flake, peel, rust or rot and they will provide beautiful good looks and maintenance freedom for many years to come.

Privacy / Security / Terms & Conditions

Important Information

At Synseal we treat your information like it was our own, confidentially.
Synseal is a value-based organisation trustworthy and discrete, Synseal complies with the privacy and Electronic Communications (EC Directive) Regulations 2003.

Download our pdf of terms of use document for full details of our privacy statement or alternatively contact us, simply click on the contact tab.

At Synseal we take our business relationships seriously, we enjoy working with you and want that to continue! Therefore we display our terms and conditions freely and openly to promote an honest approach to doing business. Download them as a pdf document now.

By using this website you are agreeing to the terms and conditions of the site set out in the pdf below.

If using online ordering you will be asked to confirm your acceptance of the terms and conditions of the site before placing each order. If you need any further info regarding our terms and conditions, why not contact us just click on the contact tab.