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Double Glazing Prices:

Adding double glazed windows to your property will help to reduce your monthly energy bills whilst also assisting in keeping your home safer and more secure. It’s difficult to find good advice on double glazing prices, so our cost guide should give an indication of typical prices for double glazed windows.


Every home is different, so there may be some extra costs to factor in in certain cases, but the double glazing prices displayed below show average prices for standard white uPVC frames with B-rated double glazed glass. All prices include materials, labour, removal and disposal of existing windows, VAT and any incidentals. For UPVC doors prices click here.

Double Glazing Costs

Casement uPVC Windows Prices (each)

Size (mm) Cost (£)
600 x 900 260 - 330
600 x 1200 280 - 360
1200 x 1200 350 - 420
1200 x 1800 500 - 590

Casement uPVC Windows Prices (set) 

House Type Cost (£)
Small terraced house (6 windows) 2,100 - 2,480
Semi-detatched house (8 windows) 3,100 - 3,540
Large detached house (12 windows) 4,930 - 5,600 

Sash uPVC Windows Prices (each) 

Size (mm) Cost (£)
600 x 900 490 - 710
1200 x 1200 570 - 900
1100 x 1300 610 - 910
1000 x 1500 710 - 960 

Sash uPVC Windows Prices (set) 

House Type Cost (£)
Small terraced house (6 windows) 3,500 - 5,080
Semi-detatched house (10 windows) 4,760 - 7,250
Large detached house (17 windows) 7,550 - 11,970  

Double Glazing Extras Cost

Although we have listed the most common variations of double glazed windows above, there are many extra components that you may need to factor in. Some of the most common double glazing extras are:

Wood effect uPVC frames: 15-20% more than white uPVC frames

Aluminium frames: 30-50% more than plain white frames

Upgrade to A-rated glass: 10% extra compared to B-rated glass

2nd floor windows: Some installers may charge more – check with your supplier 

When choosing to install double glazed windows in your home, it’s important to review and compare your local suppliers to get the best deal for your size and type of property.

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