In contrast to other providers, we do not promote new windows or new double-glazed sash inserts; we reuse your aged sashes and healthy new double-glazing units into the existing frames. So, your sash windows work and glance a similar but are considerably more energy-effective. In case you are picking windows https://cruzglvgp.targetblogs.com/26951594/how-much-you-need-to-expect-you-ll-pay-for-a-good-slimline-secondary-glazing-covent-garden