Double glazed windows provide proper heat protection for the home, by keeping the inside temperature in, through the use of gas in between window panes (see article: www.mylocalprices.co.uk/buying-upvc-windows-or-secondary-double-glazing).
So it seems, by fitting new double glazed windows the consumer will instantly save a good chunk on their energy bills, not to mention a range of other benefits as well! You can see more here: www.doubleglazingpriceguide.org.uk/double-glazing-windows/fully-fitted-upvc-windows-prices.
Strong, beautiful to look at and extremely energy efficient, bifold patio doors can be found in aluminium, timber or upvc.
Each will have its own range of prices and features. you can visit www.cheapupvcbifolddoors.co.uk/cost-of-folding-doors to learn more about all the different options and prices for bifold patio doors.