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.
We just wanted to drop you a note to let you know that we are very happy with both our secondary glazing and the new double glazing that has very recently been fitted by ERW Joinery Ltd in our home. Despite having some reservations about the aesthetics and impact it would have on the ‘period’ of the house, we both think the windows look great. In addition to this we have already noticed that the house feels much warmer and also retains the heat for longer. I thought that the advice you gave us was excellent & the attention to detail from yourself and your workforce was so important in helping us decide about the best products. Could you also please pass on our thanks to the workforce who were professional, hardworking and above all craftsmen. We will certainly be happy to recommend your company to any of our friends who may be considering similar work.
Ms R, Darlington
I just wanted to send you our thanks for yet another superb installation yesterday by Dan and crew……(our ‘phase 3’). The face-lift to our property this year has been a true transformation and your installers are always so courteous and helpful. Five star service
Mr U, Stokesley
We are absolutely delighted with the new windows which you have installed, which have perfectly retained the elegance of the original design. Installers were a pleasure to have in the house.
Ms D, Jesmond, Newcastle Upon Tyne
I remember visiting your showroom and saying that I wish my windows could be as good as the ones on your display and they are! I am absolutely delighted with them. They have transformed the front of my house. All installation staff involved were extremely polite and professional in their approach. They treated my home with respect and ensured that they cleaned thoroughly after. Please pass on my thanks to them for the quality of work they have done. It has been much admired by so many people, so I will not hesitate to recommend your firm in the future.
Mrs R, Stokesley
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
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
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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.