Quick Takeaways of the post:
Some 1930s windows are no longer fit for modern living
There are pros and cons to preservation vs replacement
Sometimes replacement is the only option
Manchester Window Factory provides A-rated 1930s-style windows
Original 1930s windows are a stunning feature that still exists in many large houses in major cities, including Manchester and the surrounding area.
Homes built in the 1930s were well-constructed, featuring strong foundations, solid exterior walls, and beautiful hardwood floors. As such, you may not have had to undertake many renovations over the years, aside from some minor maintenance and repairs.
Still, not all the features are suitable for modern living. Windows from the 1930s will be single-glazed and lacking innovative technology such as airtight seals. They are energy inefficient and may cause draughts or even leaks into your home.
But how do you go about updating them without losing the character and charm of the original windows?
That’s where we come in. Our offering includes Heritage-style sliding sash windows that are a perfect dupe for the real thing, while lowering your heating bills, stopping draughts and leaks, and retaining your curb appeal.
In this blog, we’ll guide you through 1930s window styles, the pros and cons of replacement versus preservation, and the types of modern windows that are the best fit.
Should you Replace your Windows from the 1930s?
Here’s what you came here to find out – whether replacing 1930s windows is your best option.
Well, it depends on a couple of factors:
- Your budget – can you afford a full replacement?
- The condition of the existing frames – if they are broken or warped, a full replacement may be necessary
- Energy performance – are they causing draughts, leaks, or high heating bills?
- Conservation – is it necessary to upgrade the windows to keep the building in use
- Do you live in a listed building or conservation area? – can be a longer process
In some cases, it is better to preserve as much of the original window as possible by retrofitting double-glazing or Planitherm glass.
Pros & Cons: Preserve vs Replace 1930s Windows:
Aspect | Pros | Cons |
Preserve frame, retrofit modern glazing | Maintains historic authenticity; may increase heritage property value; may not require planning permission if no change to frame appearance | Poor insulation and draught issues may still occur; costly restoration; limited energy efficiency improvements |
Full window replacement | Improves thermal and acoustic insulation; lowers energy bills; custom styling options to match original features | Higher upfront cost; may require planning permission; incorrect style can reduce property’s period charm |
Planning, Permissions & Conservation Areas
In most cases, you will not need planning permission to retrofit the glass in your 1930s windows or even to replace them completely. That is, provided that they look very similar, the size and shape has not changed, and sympathetic materials have been used.
If you live in a conservation area, you may need to check with your local authority. Those living in listed buildings may need listed building consent to make any changes, depending on the grading of the listing and the particulars of the building.
Cost, Performance & Energy Efficiency
We have compiled estimated costs of each type of 1930s window replacement below.
1930s Window Replacement Options | Estimated Cost Chart |
Window Type | Estimated Cost per Window (GBP) |
Refurbished 1930s steel/casement | £800 – £1,200 |
Timber replacement (custom heritage style) | £1,200 – £2,000 |
UPVC sash or casement with period detailing | £600 – £1,000 |
Aluminium heritage-style replacement | £1,000 – £1,800 |
However, you need to weigh the initial outlay against the savings on your energy bills and the peace of mind of increased security.
What were the popular window styles in the 1930s?
The housing boom in the 1930s saw an abundance of Art Deco styles.
Bay windows at the front of the home were a big feature in 1930s architecture, which used natural light as part of interior decoration.
They often featured leaded glass with either stained glass designs – stars and moons being popular motifs – or Georgian or Astragal bars.
New windows for 1930s homes
If you are replacing 1930s windows, you can choose either double or triple-glazed sliding sash or casement windows, styled to match a 1930s aesthetic.
With our bespoke design and fitting service, we can ensure that your new windows can blend in seamlessly or make a style statement.
All the while, you will benefit from reduced heating costs, greater comfort and security, and the peace of mind that comes with futureproofing your home.
Colours and Finishes
Traditional 1930s window frames were timber but you can also choose aluminium made to look like steel, or Heritage-style UPVC.
The most popular window colour in the 1930s was white and it’s easy to replicate the look of white painted wood, either with modern timber or UPVC with a white wood grain finish. Alternatively, we offer a stunning selection of heritage shades.
Bay Windows
Bay windows continue to be in fashion, creating light, space and a sense of drama in period and modern homes.
Leaded Glass
You can also invest in recreating 1930s stained glass designs with our traditional leaded glass. We can help you to replicate an antique design or create your own, with or without Georgian or Astragal bars.
Summary
If you have original 1930s windows, you will almost certainly need to replace at least the glazing. If the glass hasn’t been replaced even since the mid noughties, it is unlikely to be rated higher than a C for energy efficiency. However, you may not need to replace the whole window, if the frames are in good condition and can accommodate double or triple glazing.
Can Manchester Window Factory Help?
Absolutely. We’re experts in providing and installing heritage-compliant windows for a range of period properties, including listed buildings and homes in conservation areas.
With our bespoke service, we’ll assist you in choosing approved materials, colours and finishes. From mimicking wood grains to switching steel for aluminium, while preserving an authentic appearance, we’re here to help.
Get in touch for a free consultation!
How to Get in Touch
To request a free brochure, you can call us on 0161 976 4739, use our contact form or chat with us via the chat button at the bottom right of this website. If you live locally, you can also visit our Altrincham showroom, and check our contacts page for up-to-date opening hours.
We look forward to hearing from you!
FAQs
Yes, you can replace the original windows in a listed 1930s house. The caveat is that you will need to be very careful that the materials and appearance of the new windows are an excellent match for the originals. Depending on the grading of the listing, you may need to acquire planning permission before the replacement can go ahead.
Replacing 1930s windows might be slightly more expensive than a typical window replacement, due to the materials used and possibly the complexity of the design. You should expect to pay between £600 and £2,000 per window. However, the type of window – sash or casement, and the size will also determine the price.
Yes, heritage-style modern windows such as ours give you the best of both worlds – the iconic 1930s style, with 2020s energy efficiency performance. Our Heritage windows are A-rated for energy efficiency.
Most window replacements are covered by permitted development rights, even in a conservation area. However, there will likely be stipulations, such as the use of sympathetic materials, colours and finishes, plus preserving the size, shape and basic appearance of the original window.
Yes, in most cases, steel windows in good condition can be retrofitted with double glazing to improve comfort and energy efficiency. The only issue you might have is requiring the frames to be thick enough to support the thicker glass.