Cost to Install a Slate Roof

September 2024

Slate Roofing Installation CalculatorZip Code
Square Feet*
Item detailsQtyLow  High
Slate Roof Cost 
Non-discounted retail pricing for popular: S1 grade, hand split quarry slate. 18"x12" blend 1/4" thick. Calculated purchase quantity includes overage for typical waste and small future repairs.
129 square feet$1,510.64$2,155.27
Slate Roofing Installation Labor, Basic 
Basic labor to install slate roof with favorable site conditions. 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.
129 square feet$1,510.64$2,155.27
Slate Roofing Installation Job Supplies 
Cost of related materials and supplies typically required to install slate roof including: fasteners, underlayment, drip edges, sealant and basic flashing.
129 square feet$1,510.64$2,155.27
Slate Roofing Installation Equipment Allowance
Job related costs of specialty equipment used for job quality and efficiency, including: Roof jacks, pneumatic roofing nailer, shingle cutting tools. Daily rental. Consumables extra.
129 square feet$1,510.64$2,155.27
Option: Tear Off Roof
Remove existing roofing material, roof paper, vent jacks and flashing, and gutters if needed. Sweep area clean of all nails / staples.
129 square feet$1,510.64$2,155.27
Slate Roof Debris Disposal
Costs to load, haul away and dispose of old materials, installation waste and associated debris.
 0.51738750.5885625
 Unused Minimum Labor
Balance of 2 hr(s) minimum labor charge that can be applied to other tasks.
   
Totals - Cost To Install Slate Roof   
Average Cost per Square Foot  
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In September 2024 the estimated cost to Install a Slate Roof starts at $18.36 - $25.11 per square foot*. Use our Cost Calculator for cost estimate examples customized to the location, size and options of your project.

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 and Options 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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Unit Costs = Successful Projects

Homewyse uses the Unit Cost Method for up-to-date example estimates and custom estimates created with Homewyse Lists. The Unit Cost Method promotes clear communication, sets realistic expectations between the customer and service professional - and results in mutual trust, fair pricing and high customer satisfaction.


Cost to Install a Slate Roof - Notes and General Information

This example estimate is for BASIC work performed in readily serviceable conditions by qualified professionals, using popular, IN STOCK products, materials and supplies available at home improvement retailers. Your actual costs will vary due to the unique conditions, requirements, labor options and material choices of your project. Work not mentioned on this page, work with schedule difficulty, work during periods of local labor shortages, and work using master craftsman, premium materials, custom built products, project supervision may result in HIGHER COSTS!

This example estimate is for educational and illustrative purposes - it is NOT a substitute for written quotes from trade professionals. Homewyse strongly recommends that you contact reputable professionals for itemized assessments of work required and costs for your project - before making any decisions or commitments.

The example 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.
  • Labor setup time and mobilization time typical of local, small Slate Roofing Installation jobs.

The example estimate does NOT include:

  • Costs for any work or materials not specifically mentioned on this page.
  • Costs for removing, relocating, repairing, or modifying existing framing, surface finishes (including molding) and fixtures, HVAC, electrical, and plumbing systems - or bringing any systems into compliance with current building codes.
  • Costs for testing and remediation of hazardous materials (asbestos, lead, radon, etc.).
  • General contractor overhead and markup for organizing and supervising the Slate Roofing Installation. Add 13% to 22% 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.

References - Slate Roofing Installation

Slate Roofing Installation Budget Management

Slate Roofing Installation Cost Infographic - critical areas of budget risk and savings

This infographic highlights some of the decisions and job specific issues that could impact the actual cost of Slate Roofing Installation - if applicable to your job.


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