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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%. This makes a significant impact on your lowering your heating bills, whilst retaining the beauty of your property.
Another benefit of secondary glazing is that it reduces 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.
Request our secondary glazing brochure.
We are trusted by homeowners for creating beautiful, bespoke timber windows, doors and outdoor living products.
Just a quick note to say how fantastic the men were that came to install the windows, they were very polite and friendly and have done a great job. The windows look brilliant and I am very pleased with them.
Ms E, Redcar
A superb job! We’re really delighted with all our new windows. We’d like to thank ERW very much.
The installation team of Craig, Aarron and Joe were very professional, worked well together and got on with the job efficiently to complete everything ahead of time. They were very polite and communicated well with us about the job in hand and the time scale, and we were impressed that they cleared up so well each day before leaving. We would like to thank them for all their workmanship, advice, help and good humour.
The quality of the items made off-site was very high. The 7 windows look really good, they operate well and the finish is excellent. Hopefully, next winter’s gas and electricity bills will show the benefit.
From our initial contact with Stuart and our visit to the showroom, through the technical survey by Andy and the co-ordination by Sophie and Jeff, to the final installation, we’re more than happy with the whole process. We’re so pleased that we chose ERW for our continuing efforts at improving our 115-year-old home. We will certainly come back for the final stage of work on our windows in due course.
Mr and Mrs C, Darlington
My wife and I are delighted with the work you carried out on the windows. You completed the work most efficiently, to our agreed time scale. Your dealings with us from initial enquiry to completion, were first class. I would most certainly have no hesitation in recommending your firm to others, and will be in touch in late spring to initiate further work – on our upstairs front windows.
Mr C, Middlesbrough
We have had windows from you since 2007 and been very please with the service given, from first response to final completion. All staff are extremely pleasant and efficient. Very good attention given to the finish of each installation.
Mr & Mrs G, Hutton Rudby
Tasteful, timeless, transcendent. For kerb appeal combined with performance, wooden casement windows are in a class of their own. Inspired by classic Tudor and Georgian window designs, our timber 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 […]
Find out MoreTo 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 MoreThe 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 Often the most cost effective option, restoring your sash windows not only increase your home’s aesthetics, but reduces your energy bills. With a long […]
Find out MoreDouble glazed timber sashes, including high-performance slim double glazing units, can be installed discreetly to the inside of your existing sash windows, minimising disturbance and preserving character while reducing heat loss by up to 65% and noise levels by up to 80%.
Find out MoreYou can reach a member of the team by calling 01642 456167 or emailing info@erwltd.co.uk and we will get back in touch.
Alternatively, you may wish to browse our range of brochures and guides.
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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.
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