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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.
I just wanted to say a big thank you for a job really well done. All your staff are helpful and the team carried out the installation were tidy and caused minimal disruption. Thank you!
Mr & Mrs N, Eppleby
All staff I met were very professional from office to the 4 installers not forgetting the man who did the survey. I have had lots of compliments from friends and family. Thank you for the attention to detail and the efficiency of the work carried out.
Mrs B, Norton, Stockton on Tees
Many thanks to ERW Joinery Ltd, our home has been transformed. The quality and installation has exceeded our expectations. The work of your installers has been exemplary, nothing has been a problem and their care and attention to detail is first class. We would recommend you to anyone.
Dr & Mrs M, Ponteland
Whilst not the cheapest quote, the presentation and professional approach persuaded me to use ERW. Standard of work and communication to let us know when the works will be conducted were excellent. Stain glass windows are perfect match and look excellent.
Mrs W, Jesmond
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.
Contact Us Request our Brochure
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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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