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Average Cost of Double Glazing for a 4-Bedroom House in the UK
- The average cost of double glazing for a 4-bedroom house typically £4,000 - £8,000, or £400 - £1,000 per window, depending on materials and window types.
- Installation costs range from £2,000 to £3,600+ based on the number of windows and complexity of the installation.
- Available grant schemes like ECO4 may cover part of the cost if your home qualifies.
Thinking about upgrading the windows in your 4-bedroom home? Double glazing is a solid investment for anyone looking to reduce energy bills, cut down on noise, or improve comfort in their home. Before you make this investment, this article can give you an idea of what it might cost, and how you can potentially save.
We can also help you find the perfect window installer for your project, saving you hours of research time. Simply fill in our 30-second form, and you'll soon hear back from up to 4 of the best window installation companies in your area. You can then compare their tailored quotes and choose the one that best suits your needs and budget.
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How much is double glazing for a 4-bed house?
New window costs for a 4-bedroom house typically range between £5,000 and £8,000, but it can go higher depending on the materials used and the window styles you choose. Total costs can span anywhere from £3,600 to £23,000, assuming the property has 8 to 16 windows.
| Window type | uPVC | Aluminium | Wood |
|---|---|---|---|
| Casement | £6,480 | £6,720 | £9,800 |
| Tilt & turn | £8,120 | £10,540 | £12,140 |
| Sash | £9,720 | £12,220 | £13,800 |
Estimates are based on 900 x 1200mm sizes for 8 to 16 single window units.
Living in a smaller home and considering new windows? Explore our dedicated guide on the Cost of double glazing a 2 bed house for pricing and tips tailored to smaller properties.
Cost of double glazing a 4-bed terraced house
4-bedroom terraced houses typically have 8 to 10 windows, with total costs ranging from £1,600 to £16,000 depending on window type and materials.
| Window type | uPVC | Aluminium | Wood |
|---|---|---|---|
| Casement | £1,600 - £7,000 | £2,080 - £9,250 | £2,400 - £10,650 |
| Tilt & turn | £2,000 - £8,900 | £2,600 - £11,550 | £3,000 - £13,300 |
| Sash | £2,400 - £10,650 | £3,200 - £14,000 | £2,600 - £16,000 |
Estimates are based on 900 x 1200mm sizes for 8 to 10 single window units.
Cost of double glazing a 4-bed semi-detached house
A 4-bedroom semi-detached house generally has 8 to 12 windows, with total double glazing costs ranging from £1,600 to £19,200, depending on the specifications.
| Window type | uPVC | Aluminium | Wood |
|---|---|---|---|
| Casement | £1,600 - £8,520 | £2,080 - £11,100 | £2,400 - £12,800 |
| Tilt & turn | £2,000 - £10,680 | £2,600 - £14,000 | £3,000 - £15,960 |
| Sash | £2,400 - £12,780 | £3,200 - £16,680 | £2,600 - £19,200 |
Estimates are based on 900 x 1200mm sizes for 8 to 12 single window units.
What influences the cost of double glazing 4-bed house
Several factors can affect how much you'll pay for double glazing in a 4-bedroom home:
- Number of windows: A 4-bed house typically has 8 to 16 windows, which significantly increases overall costs.
- Window size: Larger or custom-sized windows will cost more than standard-sized units.
- Type of window: Casement, tilt & turn, and sash windows costs all differ, with sash windows tending to cost the most across the field of standard options.
- Material choice: uPVC is usually the cheapest, while timber and aluminium are more premium options.
- Window design: Decorative elements like glazing bars, coloured frames, or special finishes can add to the price.
- Installation complexity: If you're replacing windows with a different size or style, or modifying wall space, installation becomes more labour-intensive.
- Access and location: Homes with difficult access, or properties in higher-cost regions, can see increased installation charges.
- Installer rates: Costs can vary depending on the company you hire for the job.
Double glazing 4-bed house installation cost
Installation costs typically start at around £350 to £600 for two windows, but with a 4-bedroom house needing significantly more windows, the total will be higher.
Fortunately, many installers offer bulk discounts for larger jobs. However, final prices still depend on labour time and the complexity of the work.
Here’s a general overview of installation costs based on window count:
| Number of windows | Installation cost |
|---|---|
| 8 | £2,000 to £3,000 |
| 10 | £2,500 to £3,600 |
| 12+ | £3,000+ |
These figures are based on standard-sized windows (around 900 x 1200mm) and assume a relatively straightforward fitting process.
If your home requires structural alterations, like widening window spaces or modifying load-bearing walls, you can expect labour costs to rise accordingly. Similarly, properties with limited access (e.g., upper floors without scaffolding) may incur additional setup fees.
In some cases, double glazing grants are available to help cover these expenses. Schemes like ECO4, aimed at improving energy efficiency in homes, may offer partial or full funding for double glazing installations, particularly in older homes or low-income households. However, these grants typically won't apply to secondary glazing or triple glazing window costs, so be sure to check the eligibility criteria before applying.
Should you get double glazing for your 4-bed house
If you live in a 4-bedroom home, double glazing is a smart long-term investment. With more rooms and more windows, your property likely loses a significant amount of heat through single-glazed panes.
Not only that, but well-insulated windows mean your heating system works less, saving you money year-round, up to £150 per year according to the Energy Savings Trust. Double glazing is also ideal if you live near a road, school, or noisy neighbourhood.
And with grants like ECO4 available to help cover costs, there's even more reason to switch sooner rather than later.
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