How much should roofing cost.? To tear down wood shingles and install metal roofing on a...

To tear down wood shingles and install metal roofing on a two story beside a 45 degree roof, in the region of 3,000 square feet (with two valley and a dormer) located in the mountains surrounded by Southern California. Any help is appreciated.
GE refigrator not that cold anymore?
Answers:    roofing is charged by the square. it can come and go a good agreement between contractors. get at tiniest three estimates, and the middle est. should be in the bubble park. that is a technically hard roofing employment, don't be price shocked.
How do I intall--fix ? 1. wood burner...
I would say between $7,000 and $9,500 depending on flashings, subsheating, and other things such as access to edging of roof to throw wood shingles on trucks, landfill fees.
It's and educated guess but still a guess.