NJS Sash Window Repairs provides specialist sash window repairs, sash window restoration, timber window repairs, resin wood repairs and sash window draught proofing across Peterborough, Stamford, Cambridgeshire and surrounding areas. Established in 2005 by Nick Smith, the business works on wooden sash windows, single glazed window repairs, rotten timber window repairs, period property windows and listed building sash windows. NJS helps homeowners restore original timber windows while preserving the traditional character and British heritage of older properties.