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We specialise in the repair, restoration, and replacement of traditional timber sash windows across Highbury. 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 Restoration across Highbury and the surrounding London Boroughs.
From repairs to full overhauls, our expert sash window restoration improves both appearance and performance.
Highbury is characterized by beautiful Georgian and Victorian terraces. Restoration maintains architectural authenticity and adds significant home value. Our process includes timber restoration, draught-proofing, and professional painting.
Contact Golden Ratio Windows today for a free consultation. Explore our gallery to view examples of our successful projects.
Our team is dedicated to the heritage restoration of sash windows in London. From Highbury to Islington, we preserve the original charm of your period property.
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 Highbury 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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