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To improve performance of existing sash windows, secondary glazing can be installed discreetly to the inside of frames, providing an extra layer of insulation that keeps your home warmer in winter and cooler in summer.
In Grade I and Grade II Listed buildings and conservation areas where changes and upgrades to windows are not possible, our bespoke secondary glazing (including slim double glazed units) can reduce heat loss by up to 65% and noise levels by up to 80%. Adding additional windows also slashes a building’s CO2 emissions and enhances security by providing a barrier against unwelcome guests. All whilst preserving the character and charm of your property.
Our secondary glazing units are custom manufactured to your specifications for easy installation and available in the following styles:
All units are designed for easy cleaning and come finished in your choice of over 200 RAL colours.
From the first visit right through to the final fitting we felt confident in the expertise of the company which had been endorsed by the finished installation of a lovely window.
Mr & Mrs W, County Durham
Workmen cleaned up any mess as they went along and left no mess what so ever at the end. They were diligent and I would certainly recommend this company and I intend on using ERW again.
Mr & Mrs H, Newcastle Upon Tyne
ERW has been a major contributor in improving the physical appearance and energy conservation in our property which sits in the middle of Stokesley’s conservation area. In four phases of design and installation since early 2018 you have helped transform our property with complete distinction.
From assistance given to lodging planning applications with Hambleton District Council through advice on window design and final installation, I can give no higher praise than commending ERW on every aspect of installation.
I first visited your showroom and workshop in the Autumn of 2017 and was impressed with the factory tour afforded me by Kirsty Semark (Customer Service Supervisor). I was convinced that ERW could provide the solution to upgrading our ageing timber windows and appreciate the help and courtesy extended from you and all your staff – many of whom I have met during our four phases of installation.
The very recent installation of a new ‘Eton’ front door enhances the front elevation with perfection.
Please convey our sincere thanks to everyone involved with the workmanship, installation and administration.
Mr U, Stokesley
First class service from sales through to completion. A top quality product, fitted by a highly professional team in an efficient, timely and very tidy process. We would have no hesitation in recommending ERW to friends and family
Mr & Mrs R, Linthorpe
Tasteful, timeless, transcendent. For kerb appeal combined with performance, Casement windows are in a class of their own. Inspired by classic Tudor and Georgian window designs, our casement windows are manufactured to deliver the charm and character of period windows whilst meeting the demands of 21st-century living. Available in a range of styles to complement […]Find out More
The Californian Lifestyle veranda, is a fresh rounded option that has been designed with simplicity in mind. This sleek structure is subtle and complements any surrounding, its stylish appeal lends itself well to any property. Request our outdoor living brochure.Find out More
To improve performance of existing sash windows, secondary glazing can be installed discreetly to the inside of frames, providing an extra layer of insulation that keeps your home warmer in winter and cooler in summer. In Grade I and Grade II Listed buildings and conservation areas where changes and upgrades to windows are not possible, […]Find out More
The charm and character that original sash windows bring to period buildings are qualities that can’t be replaced. But they can be restored. Request a copy of our Renovation Brochure here With a long history of sash window restoration on period properties, listed buildings and within conservation areas, ERW offers both the specialist experience and […]Find out More
Request our Brochure
We're not able to carry out installations in your postcode area, however, we can still design and create your door, and you can liaise with a local fitter in your area to install it.