WILLIAMS ELECTRICAL SW LTD Company number 14721355 · Monitor this company Active Overview People 1 Financial Control Documents Analysis Location Related Registered office Address60 St Teilo Street, Pontarddulais, Swansea, Wales, SA4 8SY PostcodeSA4 8SY Companies at this postcode 35 Average house price in SA4 8SY £179,000 (10 sales) Map