© 2008 CJ DESIGNS
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Silverthorn Installation Services Ltd (SiS) was formed in 1976, originally as a combined electrical installation and motor rewind business. The company has remained competitive within this industry, and has grown and evolved with a new directive and approach, in order to meet our customer’s more specific and complex requirements.
SiS is now exclusively devoted to Commercial and Industrial installations, with comprehensive knowledge and experience in all aspects of electrical contracting, maintenance and testing & verification. SiS offer a broad range of services within these fields, including fast resolution, a quick response to emergency call outs, free quotations and operate within Central London and all surrounding counties.
