Musical Instrument Repairs Walthamstow, Waltham Forest - Welcome to the Walthamstow Musical Instrument Repairs Directory listing recommended instrument repair shops in Walthamstow. It lists those who offer instrument repair service and musical instrument repairs in Walthamstow, Waltham Forest. Do you have a Walthamstow musical instrument repair business? If so, why not advertise it on the Walthamstow Business Directory - IT'S FREE.