A1SOS - Providing Computer Repairs & Computer Maintenance in Chingford and throughout London. A1 Specialised Office Services specialise in the computer repairs and computer maintenance of all computers, peripherals and accessories, in Chingford and the London area. Our service includes repairs of most office equipment. So if your office is based in London or the Home Counties A1SOS can repair any of you faulty equipment on site. A1SOS - Office Equipment Maintenance and Repair. A1 Speciallised Office Services offer a full service to almost all makes and models of office equipment including, Dictaphones, Photocopiers, Printers, Fax Machines, PC`s and Audio Visual technology. All major manufacturers are covered please contact us for a competative quotation. A1SOS - Annual Maintenance Scheme Keep the equipment, that keeps the office running. A1SOS offer an Annual Maintenance Scheme that offers competative, bespoke maintenance plans to suit your needs and your budget. As with all of our services the Annual Maintenance Scheme covers almost any piece of office equipment from most major manufacturers.