Advance OnWords Speech and Language Services is a private practice, located in Guelph, Ontario, that offers a variety of personalized speech and language services to meet the needs of children and adults with communication difficulties. To better serve our clients, assessment and treatment services may be provided at the clinic or within the comfort of the client's home in any of the following communities: Guelph, Cambridge, Fergus, Elora, Rockwood, Aberfoyle. more... See more text