I live in a 1970`s built detached house on a typical estate,my stop cock in the house is leaking slightly and needs changing,the only problem is i can`t see a stop cock outside in the pavement ?,the houses either side of me and across the road all have one in the pavement outside there house,but there is not or i can`t find one outside of mine. I s this severn trent my water companies responsibility ? can anyone advise me as to where its gone or why there is not one there and will severn trent sort it out.