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Cost of Double Glazing a 3-Bedroom House in the UK (2025)
- The average cost of double glazing a 3 bed house in the UK is between £4,000 and £7,000.
- Installing windows in a 3 bedroom house requires between £2,000 to £7,000 depending on the extent of the installation.
- Grants like the ECO4 scheme and Affordable Warmth Scheme can potentially help pay for double glazing.
The average cost to replace windows in a 3-bed house in the UK is between £4,000 and £7,000, but there’s a lot of variability based on types of windows, installer rates, and materials. Let’s look at the various types of 3 bedroom houses and what options are available for them.
It’s important to note that our guide contains estimates. The best way to get exact prices is through an installer. Finding a reliable professional is difficult, which is why we also provide a service filled with the best installers. No more hours of researching companies and comparing their prices. Fill out one simple, 30-second form and we’ll do the rest.
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How much to double glaze a 3-bedroom house?
Double glazing a 3-bedroom house can cost anywhere between £1,600 to £22,400, with an average cost of £4,000 and £7,000. In comparison, the average cost of double glazing a 2 bed house is roughly £2,500 to £4,000, for a total of 4 to 8 windows.
| Window type | uPVC | Aluminium | Wood |
|---|---|---|---|
| Casement | £1,600 - £9,940 | £2,080 - £12,950 | £2,400 - £14,900 |
| Tilt & turn | £2,000 - £12,460 | £2,600 - £16,170 | £3,000 - £18,600 |
| Sash | £2,400 - £14,910 | £3,120 - £20,000 | £3,600 - £22,400 |
Cost of double glazing a 3-bedroom terraced house
Terraced houses with 3 bedrooms have between 8 to 10 windows. These can cost between £1,600 and £16,000 to replace.
| Window type | uPVC | Aluminium | Wood |
|---|---|---|---|
| Casement | £1,600 - £7,100 | £2,080 - £9,250 | £2,400 - £10,600 |
| Tilt & turn | £2,000 - £9,000 | £2,600 - £11,550 | £3,000 - £13,500 |
| Sash | £2,400 - £10,600 | £3,120 - £14,000 | £3,600 - £16,000 |
Cost of double glazing a 3-bedroom semi-detached house
The double glazing cost for a 3 bed semi will be roughly between £1,600 to £19,200, replacing roughly 8 to 12 windows. How much new windows cost for a 3 bed semi can vary a lot since, they can have a wider number of windows.
| Window type | uPVC | Aluminium | Wood |
|---|---|---|---|
| Casement | £1,600 - £8,500 | £2,080 - £11,100 | £2,400 - £12,800 |
| Tilt & turn | £2,000 - £10,700 | £2,600 - £13,900 | £3,000 - £16,000 |
| Sash | £2,400 - £12,800 | £3,120 - £16,660 | £3,600 - £19,200 |
Cost of double glazing a 3-bed detached house
A 3-bed detached house tends to have between 10 to 14 windows, which can cost between £2,000 - £22,400 to double glaze.
| Window type | uPVC | Aluminium | Wood |
|---|---|---|---|
| Casement | £2,000 - £9,940 | £2,600 - £12,950 | £3,000 - £14,900 |
| Tilt & turn | £2,500 - £12,460 | £3,250 - £16,170 | £3,750 - £18,600 |
| Sash | £3,000 - 14,910 | £3,900 - £20,000 | £4,500 - £22,400 |
The prices shown here are only estimates. For exact information that takes your home’s exact needs into account, it’s best to contact an installer. Instead of spending hours laboriously searching for companies and calling them up, we can help you find the best ones. We have a whole network of reliable installers we’ve personally vetted.
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What influences the cost of double glazing 3-bedroom house
- Number of windows: 3-bedroom houses have 8 to 14 windows, but some might have more or less, depending on how the home is laid out.
- Window size: While this page covers 900 x 1200mm, larger windows are more expensive.
- Frame material: As the tables above show, uPVC is one of the cheaper materials on the market, while wood or timber cost a lot more.
- Window design: Casement windows and picture windows tend to be the cheapest, often having few components. Alternatively, sash windows and tilt and turn windows are more expensive and harder to install.
- Type of glazing: Various types of glazing are available, with the most common being double and triple glazing. Triple glazed windows cost 30% to 50% more than standard double glazed windows. Alternatively, secondary glazing can cost a lot less.
- Installer rates: Every installer provides different rates based on local rates, what services they provide, and the amount of labour required. To decrease the installation cost you can also apply for double glazing grants like the ECO4 scheme.
Double glazing 3-bedroom house installation cost
Installing 8 to 14 windows will incur £2,000 to £7,000 in labour costs. The final price depends on the complexity of the installation, the number of windows, and the type of glazing it is.
| Number of windows | Installation cost |
|---|---|
| 8 | £2,000 to £4,000 |
| 10 | £2,500 to £5,000 |
| 12 | £3,000 to £6,000 |
| 14 | £3,500 to £7,000 |
Installation can take 2 to 3 days, depending on how complex the window designs are. Many installers offer bulk discounts for a large number of which can help decrease the end total.
Should you get double glazing for your 3-bedroom house?
Double glazing helps save the average UK home £140 to £150 in heating every year. They allow for sound reduction, better ventilation, and improve the resale value of the average home. There are also numerous grants that can upgrade your single glazing to double glazing, saving you a significant amount (based on an assessment of your home).
Getting double glazing can also improve security, as windows with better glazing are generally more sturdy. These windows increase home comfort and provide savings, allowing homeowners to earn back their glazing costs in terms of energy savings. Installing double glazing can cost a bit more than secondary glazing, but it can be worth it.
One of the contributing factors to the cost of double glazing is what an installer charges. With a reliable installer, you’ll get a well-installed window at a great price, but finding one requires hours of strenuous research if done alone. That’s why you should let us take the wheel. Fill out one 30-second questionnaire, and we’ll find you up to 4 free, non-binding quotes.
We’ve personally vetted all the companies in our network to ensure optimal quality. Click the button below to get started.
- Quotes from local installers
- Payment by finance available
- Save up to £150 per year
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