Specialists in slimline aluminium windows, replacement of steel windows (including Crittall® windows*) and Aluminium double glazing.

Retain the distinctive charm of your steel windows with aluminium double glazing from The Heritage Window Company.

Our unique Benenden window is the slimmest aluminium window available on the market, designed to replace traditional steel windows or as a bespoke window for new build projects.

The Benenden fits perfectly into your original timber frames, or direct to brick or stone, providing all the benefits of modern double glazing whilst maintaining the period character of your home.
Aluminium & Steel Windows Compared

The Heritage Experience


Our customers will tell you we’re passionate about quality products and customer service.

We manufacture here in the UK and maintain our own team of highly trained, skilled craftsmen to ensure that you’re totally satisfied with your windows and their installation.


Two FREE tickets for the Homebuilding & Renovating Show at Birmingham NEC | 26th - 29th March 2015

Residential portalFor homeowners looking for steel look-a-like windows for replacement, new build or extension / conversion projects. Discover more about our Benenden™ range of Slimline Aluminium windows here …
Are you responsible for the replacement of steel windows in a large scale project such as a mansion block, hotel, school, hospital, period or listed building? You can find out how our experienced Contracts Department can provide information and support below …
For Architects and Building Specifiers considering the use of Aluminium Windows for a New Build, Refurbishment or Total Replacement project. Click below to find out how we work closely with you from specification and estimating, to on-site consultancy and after care …
Conservation range window - Dummy Projection Hinge - Homepage
The new Benenden™ “Conservation Range” is a truly innovative product designed to take the replacement of steel windows (including Crittall® windows*) to the next level.


With enhanced aesthetics and improved performance the Benenden™ Conservation Range, uniquely available through The Heritage Window Company, will offer a more faithful reproduction of traditional steel windows whilst delivering all the benefits expected of modern aluminium double glazing.


Our discerning customers will have the choice of either Dummy Projection or Barrel hinges for added authenticity and functionality. An improved Polyamide thermal break and an “A” Window Rating will ensure the Conservation Range meets all the new Building Regulations making it the window of choice for those looking for Slimline Aluminium Windows.

dummy projection hinge - home page

Traditional style Dummy Projection Hinge

The Heritage Window Company can now exclusively offer our Dummy Projection Hinge giving complete authenticity to the Benenden™ Conservation Range. Choosing this option with the Benenden™ Conservation Range ensures that owners of period properties can retain the original aesthetics combined with the performance of a modern aluminium double glazed window.

* Crittall® is a registered trademark of Crittall Windows Limited which is unconnected to The Heritage Window Company Limited