A few things could explain a difference in price between two projects — and almost none of them are arbitrary. Roofing is highly variable by home. Pitch, story height, accessibility, the condition of the existing decking, the ventilation requirements, and the products selected all affect the final number. Two houses on the same street can price out very differently.
We also price every job based on what it actually takes to do it right — not what it takes to win the bid.
For the full breakdown of what drives roofing costs and why quotes vary, we wrote a whole piece on this — it’s worth a read before your next estimate.