Electrical & Buildings Services Ltd - North London We are an independent Electrical & Building Services contracting company based in Enfield, North London. The company was founded in 2002 by owner and managing director Barry Tohill, who has overseen its steady growth each year. We are a fully registered approved NICEIC Domestic installer, with £10 million public liability insurance, CIS6 Certification & VAT registered. Offering a wide range of electrical services, including domestic, commercial, and industrial works. We have completed full rewires of schools and factories, as well as thousands of full domestic house rewires. If you require any more information, please feel free to contact our friendly office staff to discuss how CBT can help you or your business.