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.

Doors to get a Handle of

With holidays hanging in the balance, many of us are looking to improve our homes including the continuing boom in demand for quality domestic entrance doors.

Adding a secure and aesthetically pleasing front door is fast becoming a must-have for many consumers with them being the real statement piece of the home and bland, functional doors a thing of the past. But the dilemma for many homeowners is how do they choose?

Doors to get a Handle of

JHAI - Important Announcment

Please read

Following a recent unexpected announcement from JHAI we would like to expand and clarify the information you have possibly received. JHAI have taken the decision to scale back their operations across the UK. They, like many building control practises, have seen an increase in work in the last year, and to compound their issues JHAI have lost a number of staff to competitors over recent months. This means they are significantly under resourced and can’t confidently cover the number of enquiries they are receiving whilst maintaining a decent service level. See an exert from the JHAI communication below.

JHAI - Important Announcment

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