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We specialise in the repair, restoration, and replacement of traditional timber sash windows across Chiswick. Our master joiners blend traditional craftsmanship with modern techniques to preserve your home's character and improve thermal efficiency.
No obligation · Free site survey · Reply within hours
Golden Ratio Windows provides expert Sash Window Replacement across Chiswick and the surrounding London Boroughs.
Upgrade the look and performance of your property in Chiswick with our professional sash window replacement services. We understand the unique architectural styles of homes in this area, and we offer tailored solutions to enhance their beauty and energy efficiency.
Our skilled team provides expert installation of high-quality replacement sash windows, ensuring a perfect fit and long-lasting performance. We craft our timber sash window replacements to match original features, ensuring your new windows are period-correct and FENSA certified.
Whether you require replacements for your property near Chiswick House, Turnham Green and Chiswick High Road or need to meet strict local conservation rules for your leafy Victorian and Edwardian family residences in the Chiswick Conservation Area, our master joiners have the expertise to design and install beautiful, double-glazed wooden sash windows that enhance your property's value while keeping out the chill.
Our team is dedicated to providing the highest quality sash window replacements in London. From Chiswick to surrounding boroughs, we ensure FENSA-registered installation.
We have helped hundreds of London homeowners upgrade their inefficient single-glazed windows.
Finsbury Park
"Saved our original Victorian windows when others said replace. Beautiful workmanship — our sash windows look brand new."
Stoke Newington
"Draughts completely gone. Warm house for the first time in years. Fair price and they clearly know period properties inside out."
Central London
"They completely replaced two windows in our Edwardian home. Friendly, communicative and done quickly — in just 2 days."
North London
"The detailing is very well done and accentuates the property nicely. The whole front of the house looks much better as a result."
Yes. We regularly carry out sash window repair and restoration services in Chiswick and all surrounding boroughs. We offer free site surveys for all local residents.
Yes, absolutely. We specialise in retrofitting slimline double-glazed units into original timber sash windows. This means you don't have to rip out the entire window box, saving money and preserving the historical character of your property.
Costs vary depending on the extent of the damage (e.g., rotten sills vs simple broken cords). However, repairing is almost always significantly cheaper than a full replacement. We provide completely transparent, itemised quotes after a free survey.
Stop the draughts and start saving on energy bills. We offer a free, no-obligation survey and quote for all window upgrades across London.
218 Hornsey Road, London, N7 7LL
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