Double Glazing Cost
Replacing the windows in your home will not only improve its aesthetic appeal, but also its security, its energy efficiency – cutting fuel bills by anything up to 25% – and its saleability.

Double Glazing costs can vary massively. Always get 3 quotes before committing.
Replacement windows do, however, need to be chosen with a degree of sensitivity. If you have an older – possibly Georgian or Victorian – home, for example, you may find that modern uPVC, or aluminium, double glazed windows are incongruous with the remainder of the architecture. It is worth looking at the effects of different types of replacement windows on similar properties in your neighbourhood, if possible, before committing to one type over another.
Double Glazing Considerations
Asking “How much will double glazing cost?” is rather like asking “How long is a piece of string?” Replacement windows range from economical uPVC to costly, finely crafted wood, and in quality of construction, and there can be dramatic differences in price as a result. Generally speaking, however, you can typically expect to pay between £300 and £800 per window, subject to any discounts, or special offers that may be available.
Double-glazed, or triple-glazed, replacement windows – and especially those filled with inert argon, or krypton, gas for extra insulation – are, unsurprisingly, more expensive. Making good of dry rot, or other damage, around existing window frames may add to the cost of replacement windows, as may window sizes that are non-standard. In the case of the latter, custom built windows or the enlargement of the existing window opening to accommodate a window of standard size are possibilities, but may, in turn, increase the cost by up to 100% per window.
It is obviously important to obtain a number of no obligation quotes for a double glazing project, but, moreover, to look beyond the bottom line figure, at the company behind the quote, materials, etc.. uPVC, for example, is generally considered to be a “cheap and cheerful” solution for double glazed windows, but some uPVC windows are cheaper in construction than others.
Mechanically fixed – that is, partially screwed together – uPVC windows, for example, may have a shorter lifespan than those that are fully welded. Inferior quality uPVC can also lead to distortion, leaking and discolouration in a relatively short time, so the cheapest solution is not, necessarily, the best.
One method of saving money on double glazed windows is to purchase the windows, themselves, from a home improvement outlet and have them installed by a local handyman, or builder, or do the job yourself.
This can, however, be a risky business, because you need to ensure that you, or your handyman, are sufficiently competent – and aware of the requirements with regard to moisture, weatherproofing, etc. – to complete the task to a satisfactory level. Many established replacement window companies, on the other hand, offer a comprehensive, 10-year guarantee on their products, and this is the preferred route for many homeowners.
