A smart, modern design with slimline profiles that is ideal for single hung, top hung, tilt turn, fixed windows and single or double doors. This technologically advance, thermal aluminium system is an ideal solution for heritage and refurbishment projects where developers need to replace old, steel windows.


Aitherm Heritage offers the perfect solution for heritage applications. Whether your project is a listed building redesign or a bold replica-refurbishment where planning constraints must be considered, this system is the one for you. For the technically minded – the window’s design enables construction in a modular format. Horizontal couplers are used to stack modules horizontally to create a multi-part window that incorporates a specially design drip bar between each module.


If you are seeking the perfect solution for heritage projects, look no further. Through the utilisation of the latest technology, these slimline profiles feature highly efficient thermal insulation. Whether opting for top hung, tilt turn or fixed windows, single or double doors, energy efficient results are what WDL guarantees.


Alitherm Heritage designs can be created in a choice of colours. Whatever you wish to match to, WDL has a swatch that will complement perfectly. From dual colour to textured, metallic to anodised effect – its time to get creative.


We can supply all windows and door systems plus accompanying hardware in a variety of colours or paint finishes. Our expansive paint ranges include the Natural and RAL quality brands. There are also the bespoke Sensations and newly launched Alchemy lines. Alchemy comprises 8 anodised tones including gold, silver, bronze, black and grey.


The Alitherm Heritage option provides the perfect solution for projects operating under conservation area regulations. Perhaps you need to find a like-for-like replacement of balcony doors on a heritage refurbishment. If so, these are the doors for you.