There have been recent changes to the ecoEnergy Retrofit Program as of March 31, 2010, that you should be aware of. The Government of Canada is no longer accepting bookings for pre-retrofit evaluations. This program will continue to be administered until March 31, 2011, with homeowners who have already booked appointments or have completed an evaluation or applied for re-entry to the program still being eligible for a grant. Check the Natural Resources Canada website for complete details:  
http://oee.nrcan-rncan.gc.ca/residential/personal/grants.cfm?attr=0

Ontario homeowners may still qualify for grants up to $5,000 for energy retrofits through the provincial program.

Details found at: http://www.mei.gov.on.ca/en/energy/conservation/homeenergyon/?page=homeenergy-retrofit