There will always be genuine special offers out there so perhaps set aside a month or so beforehand to keep a close eye on these, www.localglazingprices.co.uk/how-much-are-upvc-bifold-windows, before making your final decision.
Online Conservatory Cost Examples
find the most competitive prices for double glazed conservatories and in order to save money you need to make sure that you are purchasing from the right supplier.
I have a few recommendations for the cost of your new home extension online at this website: guide
Local Double Glazing Prices
search online for double glazed windows prices and given the vast network of websites & window installers just in the UK, this could take a lot of time & effort to find a reputable company with good average prices.