# Roofing Cost Calculator Issaquah WA | Roofing Issaquah

> Free roofing cost calculator built on pricing reconciled for the Issaquah/Eastside King County area.

URL: https://roofingissaquah.com/tools/roofing-cost-calculator/

## Material pricing (per roofing square, 100 sq ft, installed)

- Asphalt / composition shingle: $500-$1000
- Flat / low-slope (TPO, EPDM): $1250-$2700
- Standing seam / metal: $1550-$3400

## What moves the price

- Tear off and dispose of the existing roof, per square: $40-$100 per square
- Replace damaged roof deck sheathing, per sheet (if needed — not every job): $75-$150 per sheet

This is a budgeting estimate, not a quote. It reconciles multiple published data sets for the Issaquah/Eastside King County market — Angi's Issaquah-specific aggregator range, Angi's WA-wide per-square-foot data, and two contractor-published total-job ranges, one Eastside-specific and one WA-wide — which don't fully agree with each other, so treat this as the middle of a real range, not a precise number. Your actual price depends on your roof's specific size, pitch, number of penetrations, material, moss/algae-driven deck damage, and access. A binding number comes from a free on-site inspection.