Manufacturers and suppliers to the home improvement industry

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Instant Bi-Fold Quote

Trade customers can now get instant online pricing for our Opal bi-fold door collection. Click "Get a Quote" to login or register for an account. Instant access to our incredible range.

Prefix Systems

The UK’s largest independent manufacturer of conservatory roofs. Delivering award winning conservatory, glazing and home extension solutions since 1996.

Prefix Systems

We are the UK’s largest independent manufacturer of conservatory roofs for the trade. Since 1996, our award-winning team has offered a wide variety of conservatory roof, glazing and home extension solutions to suit almost any application.

Our mission

“To build a business that supplies the highest quality products and services that our customers deserve, our employees are proud to be part of, and our supply partners are happy to be associated with.”

Award-winning Team

Prefix Systems is a multi award winning company which celebrated 20 years in business during 2016. Our business awards are recognition for teams’ dedication and enthusiasm to customer service and our commitment to product development.

Winner Conservatory & Orangery Awards 2019, Best Solid Roof System
NFA19 Winner
Winner in the Hive Blackburn & Darwen Business Awards 2015
Winner Lancashire Business View Red Rose Awards 2015

Instant Online Pricing

Ordering App Now Available

Trade customers can now get instant online pricing for our Opal bi-fold door collection and Opal rooflights. Get an instant price on the go with our app.

Prefix Showroom

New Showroom Now Open

Our flagship Showroom now OPEN in Blackburn, presenting our full range of products. We would love to show you and your customers around.

An open letter to the wider Fenestration Industry

Prefix Systems along with eighteen other fenestration companies of all shapes, sizes and specialisms have come together as a collective to write this eye-opening letter regarding the current state of play in our collective supply chain.

The objective of this letter is to explain where we currently stand and to call upon those in our industry to show a #unitedfront in order to weather a common storm.

An open letter to the wider Fenestration Industry

Best Solid Roof System

Top 10 Reasons why you should choose the Prefix WARMroof

With many solid roof systems on the market it's hard to choose which one is best for you. Ultimately, you want to offer the best and importantly, a TRUE 'warm roof' system. Many claim to be a warm roof but in reality, the system uses 'cold roof' construction. Here are our top 10 reasons you should choose the Prefix WARMroof against competitor systems.

Best Solid Roof System

Become an Installer

Contact us today to start selling our products and join our wide network of trade customers and installers across the UK.

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