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Double Glazing Knowledge

Product Accreditations

Good companies are happy to have their products tested to destruction, and to have independent third parties come and visit their factories to check the processes designed to make good quality windows, are being adhered to.

All products must be fit for purpose, but when you are selecting between suppliers it is vital that you understand what things mean, and just how important (or not) they are to you.

For instance, if you live in a block of flats, security is probably less of an issue than if you have a bungalow, so SBD the enhanced security like the preferred standard the police recommend (secured by design) may not be worth the additional cost, however it may be excellent for the front door of the flat.

If you intend to live in your home for a number of years then you may be reassured that the BBA, the British Board of Agreement tests products for “whole of life”, they simulate 20 years of wear, opening and closing products 20,000 times before certifying they are robust. Good news if you want quality products but not if you intend to move next year, you may not have the budget to invest in this quality.

Like WER’s window energy ratings. Over recent years the government has asked the industry to improve the thermal efficiency of the products it makes. Once double glazing had a u value of 2.8, but since October 2010 it must be 1.6, or C rated or better. You may prefer to invest in A rated products that are designed to save more energy so WER’s could be very important.

There are many product accreditations listed, each has a description of what they stand for so you can decide their importance to you. As with everything lots of companies claim to have accreditations they don’t have , so CHECK their claims and be satisfied the windows you buy include the ones you expect.