The best window choices for 1930s homes

• 5 December 2025
• News

There’s something special about 1930s homes. Those clean lines, the charming bay windows, the way light floods through generous glazing – it’s no wonder these properties remain so sought-after nearly a century later.

But if you’re restoring or renovating a 1930s house, you’ll know that getting the windows right can make or break the whole project.

The windows in these homes weren’t just practical features. They were part of a design revolution. The Art Deco movement was in full swing, and steel windows were the perfect expression of that modern, streamlined aesthetic.

Fast forward to today, and you’re probably wondering how to keep that authentic character while bringing everything up to modern standards.

Let’s explore how to do exactly that.

Understanding 1930s window styles

The 1930s was a fascinating time for British architecture. We were moving away from fussy Victorian designs and embracing something altogether cleaner and more contemporary. The Art Deco style brought geometric patterns and elegant simplicity, particularly in London and other progressive cities.

Steel casement windows really came into their own during this period. Why? Because they could be made incredibly slim while remaining strong. This meant larger panes of glass and more daylight – something 1930s architects were passionate about.

You’ll find a real variety of styles across 1930s properties. While timber windows were still around, steel was becoming the material of choice for anyone wanting that modern look. Bay windows were everywhere in suburban developments, often featuring those distinctive grids of smaller panes created by astragal bars – what many people now think of as the classic ‘Crittall look’.

What makes steel the ideal choice for authentic renovation?

Steel windows capture the spirit of 1930s design in a way nothing else can. Those slim, elegant profiles simply can’t be replicated with chunkier modern alternatives. Our W20 range was developed specifically with period properties in mind, combining authentic proportions with all the performance benefits you’d expect today – thermal efficiency, new double glazing and compliance with current regulations, all without sacrificing that essential character.

Modern performance meets period character

You want your home to look authentic, but you also want to be warm in winter and keep your energy bills reasonable. The good news? You don’t have to choose.

Today’s range of products has moved on dramatically. Take our W20 system. It delivers impressive thermal performance through contemporary glazing technology, all within frames that stay true to original 1930s proportions. It’s the kind of solution that keeps conservation officers happy while ensuring your home is genuinely comfortable to live in.

And here’s something worth noting: genuine steel isn’t just about authenticity for its own sake. The material’s inherent strength is what allows those characteristically slim sightlines. Try to achieve the same look with uPVC or even aluminium, and you’ll notice the difference immediately – the frames end up thicker and the whole effect falls flat.

Choosing the right types of windows for your 1930s home

Not all 1930s properties are the same, and your window choice should reflect your particular style of home. Here’s how to think about it:

• For suburban semi-detached properties: Side-hung casement windows with period-appropriate configurations will respect the original design while giving you smooth, reliable operation.
• For Art Deco influenced buildings: Look for designs with geometric patterns and that horizontal emphasis that really captures the movement’s spirit.
• For bay window replacement: Getting the proportions spot-on is crucial here. The relationship between frame and glass needs to match the original rhythm and balance.

We’ve worked on period properties of every type over the years, so we understand how important these details are. Whether it’s a straightforward replacement or a complex restoration, getting the specification right from the start makes all the difference.

Taking the next step

Choosing new windows for a 1930s property isn’t something to rush. You need that balance between respecting the history and ensuring everything works brilliantly for modern life. Steel remains the most authentic choice – nothing else gives you those slim profiles and lasting quality.

Whether you’re an architect working on a heritage project, a developer restoring period housing or simply a homeowner who cares deeply about getting things right, we’d love to help. Our 1930s windows are designed specifically to give your property the authenticity it deserves while meeting every practical demand you can throw at them.

Have a look at our W20 range to see what’s possible, or get in touch with our team. We’re always happy to talk through your renovation plans and help you find the perfect solution for your 1930s house.