Filing application for immigration to Canada is simple and you can do it yourself.
You can check for your eligibility as skilled category worker for free by clicking following link

http://www.canadaupdates.com/content/canadian-immigration-assessment-for...

You can also check the points you get by clicking here
http://www.canadaupdates.com/content/canadian-immigration-points-calculator

If still you face any problem you can ask any question here...Happy to help