Basic
$217 – $606 each
Natural flagstone tread about 2-3 in. thick on a compacted gravel base with a stacked stone riser, dry-set, leveled and pitched to drain

Photo: Peg Syverson · CC BY 2.0 · Source
Build one outdoor flagstone step (stone tread and riser on a compacted or mortared base), per step.
Install Flagstone Step in Philadelphia, Pennsylvania typically costs $255 to $713 each as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Prices in Philadelphia are 4.0% higher than the national average for install flagstone step.
National average: $250 – $700 each
$217 – $606 each
Natural flagstone tread about 2-3 in. thick on a compacted gravel base with a stacked stone riser, dry-set, leveled and pitched to drain
$255 – $713 each
Flagstone tread about 2-3 in. thick on compacted gravel, fitted stone riser, tread pitched slightly forward to drain
$319 – $892 each
Select flagstone tread about 2-3 in. thick with a chiseled front edge, mortared onto a stone riser base, pitched to drain
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $109 – $306 | each |
| Labor | labor | $98 – $272 | each |
| Supplies & Other | supplies | $29 – $81 | each |
| Equipment & Disposal | equipment | $19 – $54 | each |
Labor costs in Philadelphia run proportionally higher than materials, which may favor material-heavy solutions.
Connect with local install flagstone step contractors in Philadelphia for personalized quotes based on your specific project.