The counties covered by SERV at present are:

• Surrey and parts of London
• Sussex
• Kent & Essex
• Herts & Beds
• Oxfordshire, Buckinghamshire and Northamptonshire
• HampshireSERV tries to respond to every request from other counties as quickly as resources permit

With each new county the cost of setting up has to be met by the charity's own funds, without adversely affecting the present service.