Double glazing prices
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Find out the typical price of different double glazed windows and doors, and see our tips to cut costs so you won’t pay over the odds.
More than 40% of Which? members* say it’s difficult to find good advice on double glazing, and a quarter had no idea initially how much double glazing should cost, so we’ve produced a price guide to help you separate the good-value quotes from the bad.
We’ve worked with the Royal Institution of Chartered Surveyors (RICS) to uncover what the average price for different types and sizes of double glazed windows and doors are.
There are plenty of variables that affect prices and every house is different, but these prices – which include replacing windows and doors on the ground level and also higher up - should give you an idea of what to expect to pay.
We’ve also spoken to experts to find out what you can do to keep costs for double glazed windows down, and what elements can cost extra, so you can save where possible.
The tables below show how much you should expect to pay for various double glazing jobs, including varying sizes of sash and casement windows and different materials, from uPVC to hardwood. Under that you'll see the prices for different types of hardwood double glazed doors and Georgian PVC doors.
Double glazed windows
Double glazed doors
The tables show prices for a range of different doors, from simple, wooden double glazed doors, to more ornate ones, such as Carolina doors, which have curved panels of glass just at the top.
You can also see prices for different grades of new ironmongery, and the cost if you use old fittings. In the bottom table, we show prices for plain uPVC doors, where a new frame and door are being added.
Cost of extras and tips from installers
We've spoken to independent double glazing installers around the UK to get the inside scoop on how to find the best company and ensure things run smoothly during and after the installation of the windows.
To arrive at these average prices, RICS uses cost data from its Building Cost Information Service (BCIS) database, where costs are collated from a variety of sources and analysed.
Material costs are based on the best trade prices from a range of suppliers across the UK, which are then benchmarked to reveal the best national average. Labour rates are based on the current Building and Allied Trades Joint Industrial Council wage agreement. It then uses this data in a standardised model of the average double glazed window and door types and sizes.
*In July 2014, we asked 2,872 Which? members questions about their experience of double glazing installation and companies.