Cost to Install a Slate Roof

Updated: June 2016

Slate Roofing Installation Cost CalculatorZip Code
Square Feet*
ItemQuantityLow  High  
Slate Roof Cost
Non-discounted retail pricing for: S1 grade, hand split quarry slate. 18"x12" blend 1/4" thick. Quantity includes typical waste overage, material for repair and local delivery.
129 square feet$891.50$1,271.93
Slate Roof Labor - Basic
Basic labor estimate to install slate roof. Install drip edge/extended eave trim, and valley flashing. Install roofing paper. Layout, fabricate, overlap and secure slate per manufacturer instructions. Includes planning, equipment and material acquisition, area preparation and protection, setup and cleanup.
6.0 hours$373.02$516.07
Slate Roof Materials and Supplies
Cost of related materials and supplies typically required to install slate roof including: fasteners, underlayment, drip edges and basic flashing.
120 Square Feet$38.56$43.86
Slate Roof Equipment Allowance
Job related costs of specialty equipment used for job quality and efficiency, including: roof jacks, pneumatic roofing nailer, shingle cutting tools.

Totals - Cost to Install Slate Roof - 120 Square Feet $1,355.58$1,918.11
Average Cost Per Square Foot  $11.30$15.98

Get an INSTANT, detailed estimate of the cost to Install a Slate Roof! Our free calculator uses up-to-date, trusted data to estimate typical subcontractor costs for a Slate Roofing Installation project. For a basic 120 square feet project in zip code 47474, the benchmark cost to Install a Slate Roof ranges between $11.30 - $15.98 per square foot* .

To estimate costs for your project:

1. Set Project Zip Code Enter the Zip Code for the location where labor is hired and materials purchased.

2. Specify Project Size Enter the number of "square feet" required for the project.

3. Re-calculate Click the "Update" button.

NOTE: *Input the total of the finished surface area AND the area of any openings enclosed by the finished area.


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Cost to Install a Slate Roof - Notes and General Information

These estimates are for BASIC work performed in serviceable conditions by qualified trade professionals using MID GRADE materials. Work not mentioned on this page and/or work using master craftsman, premium materials and project supervision will result in HIGHER COSTS! Explore the full range of slate roofing tile new installation labor options and material prices here.

These estimates are NOT substitutes for written quotes from trade professionals. Homewyse strongly recommends that you contact reputable professionals for accurate assessments of work required and costs for your project - before making any decisions or commitments.

The cost estimate includes:

  • Costs for local material / equipment delivery to and service provider transportation to and from the job site.
  • Costs to prepare the worksite for Slate Roofing Installation, including costs to protect existing structure(s), finishes, materials and components.
  • Costs for job cleanup and debris removal at project completion.
  • Labor setup time, mobilization time and minimum hourly charges that are commonly included for small Slate Roofing Installation jobs.

The cost estimate does NOT include:

  • Costs for removing, relocating, repairing, or modifying existing framing, surfacing, HVAC, electrical, and plumbing systems - or bringing those systems into compliance with current building codes.
  • Costs for testing and remediation of hazardous materials (asbestos, lead, etc).
  • General contractor overhead and markup for organizing and supervising the Slate Roofing Installation. Add 15% to 23% to the total cost above if a general contractor will supervise this project.
  • Sales tax on materials and supplies.
  • Permit or inspection fees (or portion thereof) required by your local building department for your overall project.

Cost to Install a Slate Roof - References

Slate Roofing Installation - Average Cost Per Square Foot

Expect to pay in the higher end of the price range for a licensed, insured and reputable pro - and for complex or rush projects.

To lower Slate Roofing Installation costs: combine related projects, minimize options/extras and be flexible about project scheduling.

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