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Reduce draughts and unwanted noises and keep your home warmer without replacing your existing windows by fitting NextlevelWindow’s secondary glazing. We’ve manufactured secondary glazing for more than 55 years, and can match it to your existing windows to unobtrusively add comfort to your home. It’s also perfect for listed buildings, as it won’t detract from your home’s traditional charm.
Benefits of Secondary Glazing
By providing an additional layer of sound insulation between your home and the outside world, this will help to see a reduction in noise pollution – whether it be troublesome neighbours, street noise or early morning wildlife.
Secondary glazing is a much less disruptive solution than replacing your windows, and our slim frames need little upkeep, requiring only minimal lubrication and the occasional clean.
Secondary glazing provides an additional protective barrier against intruders. Helping to keep your home safe all year round.
With a faster installation process and fewer materials involved, opting for secondary glazing is considerably more affordable than replacing all the windows in your house completely with double glazing.
Secondary glazing is an excellent way to increase the heat retention of your home, by reducing incoming draughts and preventing warm air from escaping through your existing window.
Secondary Glazing Products
Most Popular Secondary Glazing Products
Horizontal Sliding Secondary Glazing
Designed to match your existing windows, horizontal frames slide smoothly open and closed on aluminium runners, helping keep heat in, and draughts out.
Hinged Secondary Glazing
This option is ideal for traditional casement windows, as the secondary glazing swings open on a small hinge, in line with the mechanism of the window behind it.
Vertical Sliding Secondary Glazing
Perfect for box sash windows, the panels in these vertical sliding frames move easily up, down and can tilt inwards to provide easy cleaning access to the original window.
Why Choose Next Level Window?
Made in Britain
Secondary glazing is one of the first products we started selling when NextlevelWindow began over 55 years ago. It’s manufactured right here in the UK, and fitted by our expert craftspeople.
Guarantees
All our secondary glazing is covered by the NextlevelWindow 10-year guarantee. This guarantee is insured, so even if NextlevelWindow stops trading, your products will be covered.
Pricing
Our secondary glazing is made to measure for your home. That means our prices are bespoke to each customer. We’ll either end out one of our team to see you and your home to arrange a remote quotation.
We design every window with our values in mind
Security
Your security is of paramount importance, so at NextlevelWindow we manufacture windows to reflect this. Each window is made with robust multi-chambered uPVC with welded joints for added strength against forced entry.
Energy Efficiency
All our windows achieve a high energy rating, with triple glazing guaranteeing maximum performance. With recent advancements in glass technology, our windows are more energy efficient than ever, saving you money on heating bills and helping to cut carbon emissions.