Nationwide supply for UK architects & developers
Timber Sash Windows for UK Architects & Developers
Specification-grade timber sash windows supplied and installed for architectural practices, heritage consultants and developers across England, Wales and Scotland.
Sash window profiles for UK architects
Heritage Sash Windows
Solid timber box sash with framed glazing bars and slimlight double glazing accepted by heritage officers. Available in softwood and hardwood.
Vacuum Glazed Sash Windows
8.3mm vacuum glazing fits the original single-glazing rebate, thermally equivalent to 28mm double glazing and visually indistinguishable from single glazing.
Triple Glazed Sash Windows
Maximum thermal and acoustic performance in a traditional sash format for noise-sensitive locations and high EPC targets.
Specification deliverables
- Measured survey and window schedule
- CAD drawings in DWG, PDF and Revit (.rfa) format
- Listed Building Consent drawing package
- NBS specification clause on request
- Thermal and acoustic performance data
- Named point of contact throughout the project
Frequently asked questions
Do you supply timber sash windows outside London?
Yes. We supply bespoke timber sash windows for projects across the UK, including supply-only contracts for projects outside our London installation area.
Can you provide LBC drawings for listed building applications?
Yes. Listed Building Consent drawings are supplied as standard on all heritage projects, in DWG and PDF format with elevations, sections and glazing bar details.
Do you work directly with architects and heritage consultants?
Yes. We work with architectural practices, heritage consultants and developers at specification stage, supplying NBS clauses, U-value calculations, glazing samples and technical data.
Do you offer supply-only contracts?
Yes. For projects outside our London installation area, we offer supply-only contracts with windows delivered to site or to your preferred installer.
Do you provide Revit families for BIM projects?
Yes. Revit families (.rfa) are available for our standard sash window profiles, and we can produce bespoke families for non-standard sizes.
Request a Free Survey & Quote
Book a free measured survey for timber sash windows for UK projects. We respond within one working day.