When I had my roof replaced on my 1,600 square foot home I was quoted from $8,000.00 to $9,000.00 for the tear off and replacement cost of the roofing shingles.
I went with the $8,000.00 quote and that's what it cost me to have my roof replaced on the 1,600 square foot home and they did a great job.
You should expect to pay from $8,000.00 to $9,000.00 but get reviews and quotes from a few different roofing companies but don't always go for the cheapest price but go with the best roofer who will do a great job.