Electrical and Data Contractors With over 25 years' experience in all aspects of electrical work Mclean Electrical provide free quotations and a professional, efficient service based in Grantham. We listen and care about our clients and will design an economical, safe, reliable electrical system to suit your requirements. Electrical Services Mclean Electrical are Fully approved NICEIC Electrical Contractors, Part P registered. We have a team of qualified experienced electricians based in Grantham that will take the project from design to installation in whatever is the best way for you. We understand your businesses is important and must not stop working, out of hours work is normal and is not an extra charge it is part of the service Data & Network Services Mclean Electrical can provide Data systems in cat5e, cat6 & cat6a installed and certified to industries highest standards by qualified network engineers with the Fluke Network Analyser DTX1800. Honeywell approved trained installers of heating controls, evohome zoning system