Cost of Asphalt Shingle Roof Installation in Washington$217.05 per 100 sq.ft. (standard quality, overlay existing roof) (Range: $165.37 - $268.73) Free Estimates from Local ProsCost of Tile Roof Installation in Washington$1,007.75 per 100 sq.ft. (standard quality, no tear off of existing) (Range: $775.19 - $1,240.30) Free Estimates from Local ProsCost of Wood Shake Roof Installation in Washington$627.90 per 100 sq.ft. (standard quality, no tear off of existing) (Range: $542.63 - $713.17) Free Estimates from Local ProsCost of Metal Roof Installation in Washington$888.88 per 100 sq.ft (standing seam, no tear off of existing roof) (Range: $770.02 - $1,007.74) Free Estimates from Local ProsCost of Slate Roof Installation in Washington$1,304.90 per 100 sq.ft. (not including roof tear off) (Range: $749.35 - $1,860.45) Free Estimates from Local ProsCost of Flat Roof Installation in Washington$178.30 per 100 sq.ft. (asphalt roll, no existing roof tear off) (Range: $134.37 - $222.22) Free Estimates from Local ProsCost of Roof Inspection in Washington$245.48 per visit (two story home with typical roofline) (Range: $180.88 - $310.08) Free Estimates from Local Pros |