As an Amazon Associate I earn from qualifying purchases.
Architectural shingles run about $428 to $618 per square installed in Saint Louis, which puts a typical 25-square roof at roughly $10,688 to $15,438. That is 5% below the Missouri baseline. 2026 planning estimates, not quotes.
Roof replacement in Saint Louis, Missouri runs roughly -5% below the Missouri state baseline in 2026, driven by local labor rates, permit fees, and code requirements. A typical 25-square asphalt shingle roof here comes to about $10,700–$15,400 installed. Severe hail; Class 4 shingles. Use this guide to size a per-square budget for asphalt shingles, standing-seam metal, or concrete/clay tile on a typical Saint Louis home, then refine your estimate with our project estimator.
A roof replacement in Saint Louis, MO costs about $10,688 – $15,438 for a typical 25-square asphalt shingle roof — $428 – $618 per square installed with tear-off. Standing-seam metal runs $855 – $1,330 per square. These are 2026 planning figures: the Missouri baseline scaled by Saint Louis's local factor of 0.95.
Saint Louis runs about 5% below the Missouri state baseline, so the state figures are scaled by 0.95 to give the local ranges below.
| Material | Per square installed | 20 squares | 25 squares | 30 squares |
|---|---|---|---|---|
| Architectural asphalt shingles | $428 – $618 | $8,550 – $12,350 | $10,688 – $15,438 | $12,825 – $18,525 |
| Standing-seam metal | $855 – $1,330 | $17,100 – $26,600 | $21,375 – $33,250 | $25,650 – $39,900 |
| Concrete or clay tile | $1,140 – $1,720 | $22,800 – $34,390 | $28,500 – $42,988 | $34,200 – $51,585 |
Figures are per square — 100 square feet of finished roof — for installed work including tear-off, and are 2026 planning estimates rather than quoted prices. Squares shown allow for a typical 6/12 pitch and 10% waste. Always get three written quotes before committing.
| Roof size | Squares | Asphalt shingle range |
|---|---|---|
| 1,200 sq ft footprint | 15 | $6,413 – $9,263 |
| 1,500 sq ft footprint | 18 | $7,695 – $11,115 |
| 2,000 sq ft footprint | 25 | $10,688 – $15,438 |
| 2,500 sq ft footprint | 31 | $13,253 – $19,143 |
| 3,000 sq ft footprint | 37 | $15,818 – $22,848 |
The Missouri state permit average is around $175; large metros frequently sit above that and may add inspection or scaffolding requirements of their own.
| House size | One storey | Two storeys |
|---|---|---|
| 1,000 sq ft house | 12 sq · $5,130 – $7,410 | 6 sq · $2,565 – $3,705 |
| 1,300 sq ft house | 16 sq · $6,840 – $9,880 | 8 sq · $3,420 – $4,940 |
| 1,500 sq ft house | 18 sq · $7,695 – $11,115 | 9 sq · $3,848 – $5,558 |
| 1,800 sq ft house | 22 sq · $9,405 – $13,585 | 11 sq · $4,703 – $6,793 |
| 2,000 sq ft house | 25 sq · $10,688 – $15,438 | 12 sq · $5,130 – $7,410 |
| 2,500 sq ft house | 31 sq · $13,253 – $19,143 | 15 sq · $6,413 – $9,263 |
| 3,000 sq ft house | 37 sq · $15,818 – $22,848 | 18 sq · $7,695 – $11,115 |
Flat and low-slope roofs are priced differently from shingles: they use membranes (TPO, EPDM, modified bitumen) or spray foam with a protective coating, and are usually quoted per square foot of roof area. If your Saint Louis home has a flat roof, size it with the flat roof calculator and ask roofers to quote the membrane or foam system, its thickness and the coating warranty separately.
Getting quotes from crews that also work the next metro over? The same 25-square shingle roof is estimated at Kansas City, MO (about $10,688 – $15,438 for 25 squares), Des Moines, IA (about $9,430 – $13,800 for 25 squares), Chicago, IL (about $15,045 – $21,830 for 25 squares), Lexington, KY (about $9,430 – $13,800 for 25 squares), Memphis, TN (about $9,000 – $13,050 for 25 squares). Each figure is that city's own multiplier on its state baseline.
A typical 25-square asphalt shingle roof in Saint Louis works out at roughly $10,688 – $15,438 installed. That is the Missouri baseline scaled by the local factor of 0.95.
A one-storey 1,500 sq ft house has about 18 squares of roof at a 6/12 pitch with 10% waste, so roughly $7,695 – $11,115 for architectural shingles in Saint Louis. A two-storey house of the same floor area has about half the roof.
Severe hail; Class 4 shingles. Metro labour rates, permit and inspection requirements, and disposal fees all differ from the state average, which is what the 0.95 multiplier represents.
Measure your roof in squares, then get three written, itemised quotes from licensed and insured local roofers on the same scope. Compare the per-square price and check each quote covers tear-off, decking, underlayment, flashing, ventilation, disposal and the permit.
In almost every jurisdiction yes, and a licensed contractor will pull it as part of the job. Replacing a roof without one can cause problems at resale and can give an insurer grounds to dispute a later claim.
Three, from licensed and insured local contractors, each written against the same scope. Ask specifically whether flashing, drip edge, underlayment, ridge vent and decking replacement are included, because that is where quotes usually differ.