City of Westminster
Timber Sash Windows Mayfair
Heritage and conservation specialists serving Mayfair, Grosvenor Square, Berkeley Square and the wider Westminster estates
Mayfair is one of the most heritage-dense districts in the country: a Georgian estate layout of squares and townhouse terraces within the City of Westminster, with large numbers of listed buildings and near-continuous conservation area coverage. Window replacement here is almost always a Listed Building Consent matter, and much of the area is also governed by estate management schemes that set their own expectations for external detailing.
The prevailing window type is the Georgian box sash, six-over-six on principal floors with slender solid glazing bars, putty-fronted glazing and painted joinery. Our Heritage profile is built for exactly this brief, with slimlight or vacuum glazing where insulation is needed without altering the sightline or the reflection of the facade.
Sash window specifications for Mayfair properties
Conservation areas we cover in Mayfair
- Mayfair
- Grosvenor Square
- Berkeley Square
- Mount Street
- South Audley Street
- Shepherd Market
- Park Lane
- Hanover Square
Why Mayfair requires a specialist
On listed Georgian townhouses the assessment turns on fine detail: glazing bar section and thickness, sash proportion and horn detail, putty line, and whether the glazing unit reads as single glazing from the street. Applications supported by generic product literature rather than scaled drawings are commonly refused, and estate management schemes can add requirements beyond the council's.
We produce Listed Building Consent drawings and specification statements to the standard Westminster's conservation officers expect, and we coordinate with the relevant estate where a management scheme applies. The survey and planning assessment are free of charge.
Nearby areas we cover
More timber windows for Mayfair homes
Request a Free Survey & Quote
Book a free measured survey for sash windows in Mayfair. We respond within one working day.