Replacement and restoration of timber sashes in Grade I, II* and II listed buildings. We handle Listed Building Consent end-to-end — survey, drawings, application, follow-up.
Mandatory for any external alteration. We submit, track, follow up.
Direct relationship across 32 London boroughs.
Replication of profile, glazing, ironmongery, paint.
Every change documented — future owners thank you.
Sapele or English oak only — no Accoya on Grade I.
CITB-trained removal, HEPA-vacuumed, licensed disposal.
Existing windows photographed, measured, profiles recorded.
Plan, elevation, section drawings to 1:5 and 1:1 detail.
Written justification — what, why, impact.
Submitted via Planning Portal, fee paid by us.
We attend with the conservation officer, every time.
Determination within 8 weeks of validation.
Specifically designed to replicate the subtle distortions and visual character of traditional hand-made glass found in historic windows.
Engineered timber, draught-proofing and slim-line double glazing for modern performance without losing the period profile.
Yes, on any listed property. Even a like-for-like timber sash replacement requires consent. The penalty for unauthorised work can include a court order to reverse it.
Sometimes — on Grade I properties especially. We can install secondary glazing internally to provide thermal performance while preserving the historic glass.
We have direct working relationships across all 32 London boroughs. If a refusal looks likely we will tell you before you spend money on a hopeless application.
Custom-size windows are quoted after a free survey.
Tell us about the property and we will come back within one working day with a window count, indicative price and the next available survey slot.