My advice - ditch this company as soon as you can! Arranged a date for smart meter installation, but no show. Second time they issued a safety notice saying the meter was not housed safely and did not install, despite a neighbour having a similar housing that was OK! Changing required a £1500 meter move, although SGN deemed the original adequate if not ideal. Made the decision not to allow SP"s contractor back as they were clearly not competent. Since then dozens of calls from SP being told not to call, text or email. Three calls in less than 24hrs last week so changed supplier and SPnow calling to get me to change my mind. No chance!