Original sash and case windows are an important part of many listed buildings and conservation-area properties in Edinburgh. Repairing sound historic fabric is often preferable to unnecessary replacement, but the correct approach depends on the building, the window and the proposed work.
Planning-sensitive sash window enquiry? Request a free initial assessment or email hello@sashandcaserepairsedinburgh.co.uk.
Check the property before planning work
Use the City of Edinburgh Council’s listed-building and conservation-area resources to check the property’s status. Listing and conservation-area controls are related but not identical, and the position can also differ between repair, alteration and replacement.
When might consent be needed?
Current Edinburgh guidance says that repairs matching the original materials and methods, where the character of the building is not affected, do not usually require listed-building consent or planning permission. Alterations that affect a listed building’s character can require listed-building consent. Replacement windows, double glazing and changes to glazing patterns, materials or opening methods require particular care.
If there is uncertainty, contact the planning authority before work begins. The Council explains the process on its listed-building consent page. This page provides general repair guidance and is not a determination that consent is or is not required for a particular property.
Repair-first questions to ask
- Which parts of the original window remain sound?
- Is the fault mechanical, such as a failed cord, pulley or weight?
- Is timber decay localised to a sill, rail, joint or glazing bar?
- Can historic glass, mouldings, ironmongery and other sound fabric be retained?
- Will the proposed materials and details match the existing window?
- Could the work alter the external appearance or historic character?
Common repair options
Depending on condition, the scope may include cord and weight replacement, easing painted or sticking sashes, bead repairs, reinstating putty, localised timber splicing and carefully considered draught proofing. Historic Environment Scotland also recommends keeping traditional windows in good repair and considering appropriate draught reduction before unnecessary replacement.
What to include in a listed-building enquiry
Provide the property address or postcode, listing category if known, photographs of the elevation and affected windows, the number of windows involved, and a clear description of the proposed repair or alteration. Mention any known consent history and whether original glass or distinctive detailing remains.
Costs and quotations
Listed status does not create a single fixed surcharge. Cost depends on access, condition, documentation, materials, finishing and the repair scope. Use the Edinburgh sash window repair cost guide for preliminary ranges, followed by a property-specific assessment.