The Heritage range of windows, doors and bi-folding doors provide a modern, like-for-like replacement for traditional materials & is the ideal solution for projects where planning or design demands dictate the installation of sympathetic materials. 

The Alitherm Heritage door and window ranges both feature the slim profiles and sight lines that are associated with traditional steel doors and windows with sightlines of just 59mm and a frame depth of 47mm. However, the system’s timeless elegance is also accompanied by the outstanding thermal performance of a modern aluminium system. 

Featuring slim, thermally-broken profiles, Opal Heritage windows are available in a number of formats, including fixed-pane, sash, top-hung and side-hung casement, pivot and tilt and turn. These different options may be installed in a combination of horizontal modules, which are stacked using our coupling options to form a multi-part window. 

Suitable for both single and double door application, Opal Heritage balcony doors are available in a wide range of sizes and are supplied with a multi-point lock mechanism as well as face-mounted finger thrown locking bolts. Both the window and door systems deliver a U-Value of 1.5 W/m²K, when installed with a suitable sealed unit, and are available in either single or dual polyester powder coated finishes

The Opal Deluxe bi-folds are also available as a Heritage option with a 18mm slimline bar. (this is back to back spacer with 18mm bar appearance).

Key features include:

Aluminium that looks like steel

Approved replacement for listed buildings by many council authorities

Ultra slim framework ideal for fitting between stone mullions

Can achieve Grade 'A' thermal rating

A fraction of the cost of steel

Email us today for a Heritage quote > enquiries@prefixsystems.co.uk or find out more here