There are a lot of companies that mess you around watch out!! I have recently had a bad experience, I will not say what company. However I can recomend to really good ones
Security 3 services 08081556985
ATB 01582658258
These companies will not muk you around but if you are unfortunate to go with a company who are messing you about get out immediately and keep your opinions to yourself. Never talk about a company that you work for badly no matter how unproffesional they are! Youn never know who will grass and back stab you.