These iconic windows and doors may be your first choice for your home renovation or extension, but how much do you actually know about them?

kitchen diner with crittall windows and doors - home improvements - grand designs

Image: Stiff + Trevillion

Crittall is a much lusted-after design element, especially here in the UK where these steel-framed windows, doors and screens are still produced.

Whether you’re renovating an existing home, adding an extension or self building, if Crittall is on your wishlist, here’s what you should know about this iconic brand.

What is a Crittall window or door?

natural stone brick home with crittall doors and windows - home improvements - grand designs

Image: KJA Services

You’ll best know Crittall windows and doors as designs in grid-like panels, however Crittall can refer to a range of steel-framed products. In everyday parlance, you may use Crittall to refer to any black framed steel window, door or internal screen; however, that’s not always entirely accurate. Crittall is a registered trademark, so only those steel frame windows and doors made by Crittall can actually be called by that name. While you shop around, you may see terms such as ‘Crittall style’ or ‘Crittall type’, which are likely to not be genuine Crittall products.

Crittall was founded in Braintree, Essex, and has been in operation for over 160 years. Where windows were traditionally made from timber at this time, it had great success in introducing steel windows into circulation, with Crittall windows used in the likes of the National Gallery, the Houses of Parliament and the Tower of London.

Crittall windows became most synonymous with the Art Deco and Modernist architecture movements from the 1920s. While this style may have fallen out of fashion for a period of the time since, in recent years they’ve become a much sought after style for contemporary homes.

Are Crittall windows practical?

kitchen diner with crittall windows and doors - home improvements - grand designs

Image: Stiff + Trevillion

Crittall frames are galvanised, which permanently seals them against rusting and warping when exposed to the elements. As they are powder coated, they won’t need to be painted on site either, ensuring an easier install and that they won’t need to be redecorated for 25-30 years.

Read more: Kitchen extension ideas to improve your home

read a free issue of grand designs magazine

Are Crittall windows energy efficient and environmentally friendly?

Crittall windows and doors can be double or triple glazed as required for external facing applications, while opening windows from Crittall’s HomelightPlus range are dual weather-stripped to offer draught proofing qualities.

Steel windows, unlike uPVC, are completely recyclable when they come to the end of their life and contain 100% recycled steel, claimed from the windows it replaces. You can expect steel windows to last for 60+ years.

How much do Crittall windows cost?

kitchen with crittall steel frame windows - grand designs - home improvements

Image: Katerina Laurent

Crittall windows to represent a significant investment for your home, but one that has longevity. If choosing steel windows and doors, low price shouldn’t be your key criteria, as poor quality installs can be an issue to rectify and affect your home’s value. As a guide price, Crittall Homelight residential steel window starts from around £600 (incl of VAT); however, as Crittall windows are bespoke, your best bet for accurate pricing is to request quotes from several installers.


For more product advice for self builds and renovations, read Grand Designs magazine digitally for free now by registering your details

read a free issue of grand designs magazine


9 ways to bring light and space to your self-build or renovation

Bifold doors or sliding doors: which is right for my project?

4 real extensions that blur the lines of in and outdoors

Kevins Column

Top self build highlights at Grand Designs Live 2019 hosted by Kevin McCloud

Find top experts, specialist exhibitors and a wealth of inspiration for your self-build or renovation project all under one roof.
Home Improvements

An innovative upper floor construction method that improves performance

A Lewis Deck system is perfect for a solid, secure upstairs floor without heavy beams and blocks, with great acoustic properties.
Home Improvements

Design the perfect kitchen with colour-matched worktops and sinks

Kitchen worktops are the finishing touch of any modern kitchen. Discover a range that meld technological advances with great looks.
Home Improvements

How frameless rooflights can maximise your home’s natural light

Rooflights are the perfect way to brighten your home with natura light. We take a look at a range of stylish rooflights for design-led homes
Home Improvements

Which government energy home improvement grants are available in 2021?

Discover the eco home improvement schemes you could take advantage of in 2021.
Home Improvements

Bespoke furniture: is it worth the investment?

Opt for bespoke furniture for a self-build project to make it a fully customised space.
Home Improvements

The pros and cons of resin and concrete floors

Things to consider when opting for a resin or concrete floor for your home.