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Last updated: 15 August 2024
How much do soundproof windows cost?
If you're looking to reduce outside noise at home, soundproof windows could be a good option. Find out how much soundproof windows cost in this handy guide...
Fast Facts
The average cost of soundproof windows can range from £4,760 to£4,760 per window
Soundproof sash windows are typically more expensive than casement windows
On average, window installers charge in the region of £300 per day
To help you plan your budget to install soundproof windows, we've put together this guide looking at the average cost of installing soundproof windows in the UK. Keep reading to find out more...
How much do soundproof windows cost?
| Cost provided item | Unit | Average cost |
|---|---|---|
| Soundproof sash windows | 900mm x 500mm | £1,365 |
| 1,800mm x 1,250mm | £2,230 | |
| 1,225mm x 2,480mm | £4,760 | |
| Soundproof casement windows | 1,100mm x 900mm | £895 |
| 1,350mm x 1,200mm | £1,600 | |
| 1,400mm x 2,100mm | £1,860 | |
| Secondary glazing | Per window | £400 |
| Window fitters (team of two) | Per day | £300 |
| Last updated: July 2024 Our costs are ballpark averages - get a local tradesperson to quote now | ||
For soundproof casement windows, you can expect to pay anything from £895 to £1,860.
Soundproof sash windows can be much more expensive, at around £1,365 to £400 per window.
Generally speaking, good quality noise reduction windows cost quite a lot of money. But you can consider it an investment in your property.
Installing soundproof windows can help increase the value of your home and make it more appealing to potential buyers when you come to sell.
There are several ways to soundproof your windows, some more expensive than others. And the exact price of your soundproof windows will depend on the type, size and number of windows.
As well as comparing prices, you should also pay attention to the sound transmission class (STC) rating.
The higher the STC rating, the better the windows are at blocking unwanted noise. This is also likely to increase the price.
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Cost of secondary glazing to soundproof your windows
The cheapest and least disruptive is to install secondary glazing. You won't need to install new windows or frames, just replace the glass.
On average, installing secondary glazing will cost around £400 per window.
However, if you have old frames or secondary glazing isn't possible, you'll need to get new soundproof windows.
Types of soundproof windows
Below are some of the most common soundproof windows available in the UK...
Double glazing soundproofing
If the levels of ambient noise outside your home are currently below 65 dB, double glazing should help reduce unwanted sound entering the property.
Triple glazing soundproofing
For homes where ambient noise levels are higher, triple glazing could be a good solution. On average, they offer an additional 4-decibel reduction compared to double glazing.
Secondary glazing
Secondary glazing is where another layer of glass of a different thickness is installed on the window.
It also has an insulated air gap, which helps to cushion and block unwanted noise.
Compared to the cost of installing new soundproof windows, secondary glazing can be much more affordable.
Laminated glass
This is glass which is specially coated to block the transfer of sound. The glass is laminated with a PVB plastic coating, which adds another layer to the sound barrier.
Laminated glass can potentially reduce noise levels by up to 35 dB, provided there is a 100mm sound gap and it is used as secondary glazing on an existing single-pane window.
Key takeaways
Speak to local window specialists about your noise problems to get their professional advice and guidance on the best soundproofing solution
Secondary glazing is usually the most affordable option but isn't suitable for all properties
Soundproofing your windows can be costly but it can improve your experience at home and add value to your property
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