Normal Roof Cost? Creative ways to save? (north of Denver)

[Bill Coleman]

Buying a place that needs the roof replaced.

Estimates from 2 contractors are around $4500 to $5500. Agent says it's high.

Specs: 1,512 sq ft area (36'x42'); two layers to be removed; no leaks or water damage; cover with 15 year architectural shingles; easy roof pitch (no harnessing or safety needed)

Just want to know if those who have done roofs think this is a fair quote or high? Also, does anyone use any creative ways to get roofs done for less?

I used to do roofing in college and I know what's involved and a cost of $5k for such a small easy job seems about double what it should be. But I know roofers get a lot for jobs but I am not sure why.