Cost to Install an Electrical Sub-Panel

Updated: March 2018

Electrical Sub-Panel Installation CalculatorZip Code
Item detailsQtyLow  High
Electrical Sub-Panel Cost 
Non-discounted retail pricing for: 20 space 100 A main breaker load center. BR type circuit breakers. Indoor, flush mounted. 10 yr warranty.
1 sub-panel$375.36$461.40
Electrical Sub-Panel Labor, Basic 
Basic labor to install electrical sub-panel with favorable site conditions. Turn off power. Layout location and secure sup-panel. Add wiring from existing main panel and sub-panel circuits (up to 5 circuits). Repower and verify proper operation. Includes planning, equipment and material acquisition, area preparation and protection, setup and cleanup.
1 sub-panel$375.36$461.40
Electrical Sub-Panel Job Supplies 
Cost of related materials and supplies typically required to install electrical sub-panel including: connectors, fittings, junction boxes and fasteners.
1 sub-panel$375.36$461.40
 Unused Minimum Labor
Balance of 2 hr(s) minimum labor charge that can be applied to other tasks.
Totals - Cost To Install Electrical Sub-Panel   
Average Cost per Sub-Panel  
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For a basic project in zip code 47474 with 1 sub-panel, the cost to Install an Electrical Sub-Panel starts at $1,189 - $1,446 per sub-panel. Actual costs will depend on job size, conditions, size options.

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 "items" required for the project.

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


Unit Costs: How Pros Price

Unlike sites which blend pricing from dissimilar jobs, homewyse estimates are based on the Unit Cost method. This method uses job specific detail for superior pricing accuracy and transparency - and has become an industry standard through publications and guidance of leading trade associations, including: PHCCA, the NKBA, the NECA, the AIA, and the ASPE.

Cost to Install an Electrical Sub-Panel - 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!

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 Electrical Sub-Panel Installation, including costs to protect existing structure(s), finishes, materials and components.
  • Labor setup time, mobilization time and minimum hourly charges that are commonly included for small Electrical Sub-Panel 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 Electrical Sub-Panel 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.

Cost to Install an Electrical Sub-Panel - Unit Price References

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