It was announced by the charity that States funding for their home care service, which costs around £1.9 million a year to run, was going to be pulled.
Staff are due to be offered revised contracts, which are likely to include a reduction in pay and benefits and a revised pension.
Around 200 customers, which include the elderly and vulnerable, also face big increases in the cost of home care.
All 118 staff affected are being called to attend a meeting next Friday, during which they will discuss possible industrial action with union representatives from Unite.
Keep in touch with local news wherever you are in the world with JEP Extra
