Roofing Cost Estimator
Estimate total material and labor cost for a re-roof based on roofing squares.
Once you know how many roofing squares a job covers, total cost is a matter of multiplying by regional material and labor rates per square — but those rates vary enormously by market, shingle grade, and roof complexity, so this calculator is meant as a starting-point estimate rather than a quote. Waste factor is applied to material cost only, since labor is generally billed per square of finished roof rather than per square of raw material purchased.
Frequently Asked Questions
What is the average cost per square to roof a house?
Total installed cost (material + labor) typically runs $350-$600 per square for asphalt shingles, though this varies widely by region, roof pitch, and how much of the old roof needs tear-off.
Does a steep roof cost more to install?
Yes — steep-slope roofs usually carry a labor surcharge because they're slower and riskier to work on, often adding 10-20% or more to labor costs above roughly a 7/12 or 8/12 pitch.