Well reviewed Roofing contractor 40% wants prepayment

[Jack B.]

A well reviewed roofing contractor wants a 40% prepayment on an 8K roof job. They have great reviews online. I dealt with a plumbing company for a plumbing retrofit once and they had a similar request, which I obliged since they had fantastic reviews all over the web. In that case they had the best price of anyone and it wasn't that much money so I went ahead and paid it since they had great reviews.

I figured I'd check on the roofing situation though, this seems pretty typical to me. 

[Jeff Richardson]

I think 40% is acceptable, if you're concerned, you can always ask to pay for materials instead.