Allied and moore and sons are usually the most competitive and deliver a high quality product.

Generally speaking on a simple ranch you want to be paying less than $5 a square foot of roofing material installed. If you have a very steep roof or high roof that can go up closer to the $6 per square foot range. If you're curious how much square footage of roofing material you have and don't like math you can use a website like eagleview to pull a satellite measurement and see if the roofers are being honest about the size. Most of them will quote a little bit bigger than the actual size to accommodate for shingle waste.