Our Double Glazing consultants have 40 years’ experience in the glass and upvc window trade and are happy to provide this service without charge or obligation to you. The real concern at the moment is heat loss through windows and doors this can range from 40 watts kelvin on an average square meter of glass to as little as 12 watts. You will be pleased to know that all our windows are ‘A’ rated. This equates to 20% more energy efficiency than conventional double glazing. All our units contain inert argon gas. This acts as an insulator and barrier to keep warmth from escaping from your home. You can rest assured when it comes to security, because our windows are subjected to vigorous and repeated testing to show just how resistant our products are to forced entry.