The cost of basic companion care can range from $20 to $35 per hour or more. For full-day care on weekdays from 8am to 5pm, the cost can be between $200 and $500 for a 12-hour shift, whether it’s during the day or at night. If you require full-time live-in companion care, you can expect to pay around $4,000 to $8,000 per month.