1,800 Sq Ft Slate Roof Cost (2026)
A 1,800 sq ft slate roof runs about $27,000 to $54,000 installed in Florida (2026), or $10,800 to $27,000 for materials only.
- Range
- $27,000 to $54,000
- Per square
- $1,500 to $3,000
Low to high: $342 to $684 / mo
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These slate figures are an industry-reference estimate. Florida-specific pricing for this material is being sourced and will replace the placeholder ranges.
What a 1,800 sq ft slate roof costs.
$1,500 to $3,000 per roofing square. Industry-reference estimate (Homewyse and RoofingCalc typical); Florida-specific pricing pending.
Where the money goes.
| Line item | Range | What it covers |
|---|---|---|
| Materials | $10,800 to $27,000 | Slate and accessories for about 18 squares. |
| Labor | $10,040 to $16,740 | Crew, install, and staging. The largest share of most jobs. |
| Tear-off and disposal | $4,210 to $7,020 | Stripping the old roof and hauling it off. Rises with extra layers. |
| Permit and inspection | $1,940 to $3,240 | Florida re-roof permit and final inspection. An approximate derived share. |
| Total installed | $27,000 to $54,000 | Typical $40,500. Low, typical, and high across a normal range of roofs. |
Scaled from real Florida per-square pricing off a 30-square baseline; the permit share is an approximate derived figure. How we estimate
What affects the cost of a 1,800 sq ft roof.
An 1,800 sq ft roof is about 18 squares, a common size for a three- or four-bedroom Florida home. By this point the fixed costs of the job are fully absorbed into the per-square price, so the estimate scales predictably: material and labor rise roughly in step with the square count, and the total sits comfortably inside the linear model. Small pricing differences between contractors at this size usually come down to crew rates and material grade rather than the size of the roof itself.
Geometry is still the main reason two 1,800 sq ft roofs cost different amounts. A simple gable installs quickly; a hip roof with multiple valleys, a chimney, and skylights uses more flashing and takes longer. Story count and pitch add labor, and tear-off condition matters, since a roof carrying two layers of old shingle roughly doubles the disposal weight and the dump fees compared with a single-layer strip.
Florida code requirements, the permit, the final inspection, a rated underlayment, and secondary water protection in the wind zone, are included in these ranges. The estimate is scaled linearly from a 30-square baseline, and 1,800 sq ft is close enough to that baseline for the figure to be a solid planning number. Treat it as a starting point and confirm with a contractor who has measured the roof before committing a budget.
A 1,800 sq ft roof by material.
Other sizes · Slate
Slate roof questions.
A 1,800 sq ft slate roof costs about $27,000 to $54,000 installed in Florida in 2026, with a typical price near $40,500, or roughly $1,500 to $3,000 per roofing square. Slate is the most expensive common roofing material and its weight often requires added structural support. These figures are an industry-reference estimate; Florida-specific slate pricing is being finalized.
A 1,800 sq ft roof is about 18 roofing squares. Roof area is larger than a home's floor area because it follows the pitch and overhangs, so a 1,800 sq ft roof does not mean a 1,800 sq ft house. Slate is priced by the square, so the roof's square footage drives the estimate.
A natural slate roof can last 75 to 100 years, longer than any other common roofing material on the same 1,800 sq ft home. Slate is rare in Florida because of its cost and weight, and a home usually needs a reinforced roof structure to carry it, but where it is installed it rarely needs replacing.
Florida homeowners insurance covers roof replacement when the damage is from a covered peril such as a hurricane, not from age and wear. A 1,800 sq ft slate roof runs about $27,000 to $54,000, and because slate is costly to repair or match, some carriers treat it differently from shingle, so it is worth confirming coverage details with your insurer.
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