The actual cost of the inspection should be one of your least concerns as the benefits realized from a professional inspection will far outweigh it's cost, several times over. While home inspectors in Canada remain an unregulated body, there are several associations that offer certification to their qualified members. They have several years of experience in inspections, engineering, architecture or the building industry. Their Code of Ethics and a Standard of Practice enable quality of service to be provided to the public on a consistent basis. Keep in mind that anyone may choose to become a member of a Home Inspection Association.
Many associations have various levels of membership.
Being an association member does not necessarily mean that they have successfully completed the certification process and carry the CHI designation.