The Hertfordshire Local Offer website has a comprehensive guide to Speech, language and communication needs and how these are supported in Hertfordshire.
An advice line run by the speech, language and communication team is available on Tuesdays and Wednesdays between 1.30 and 4pm. The contact number is 01442 453920
Speech and Language UKThis charity supports families of children with speech and language needs. There is a range of helpful information and resources to be found.