Sash Window Restoration Services in London
Hartwell Sash provides professional sash window restoration across London. We restore original timber windows with care and replace only what is necessary.
Sash Cord Replacement
Worn or snapped sash cords prevent smooth and safe window operation. We replace damaged cords using durable materials to restore proper balance and function.
Glass Replacement
We replace cracked, misted or broken glass while preserving original timber frames wherever possible.
Professional Draught Proofing
Our draught proofing solutions reduce cold air infiltration and improve comfort without altering the character of your sash windows.
Timber Repairs & Repainting
Careful preparation, timber repairs and professional repainting provide long-lasting protection against London weather conditions.
Ironmongery Replacement
Traditional locks, lifts and fittings replaced or upgraded to suit your existing sash windows.