I have not used this service, so cannot comment on their work, but they have a promotion on at the moment:
Summer promotion:
Starting Monday May 2nd - Vaughan, Markham, Richmond Hill, Woodbridge, Concord, North York and surrounding areas are charged on the flat rate of $17/hour taxes included.
Other areas in GTA are $18/hr taxes included.
A minimum charge of 3 hours applies to all orders.