Electrical Estimating Guide
Electrical wiring, panel upgrades, and installation estimating for residential and commercial projects.
Overview
Electrical estimating covers a wide range of work from simple outlet additions to complete commercial electrical systems. Bids typically account for wire runs, device counts, panel capacity, and code-required components like AFCI and GFCI protection. Labor represents the largest portion of most electrical bids, often 60-70% of total cost.
Common Projects
- →Electrical panel upgrade (100A to 200A)
- →Whole-house rewire
- →New construction rough-in and trim
- →EV charger installation
- →Recessed lighting layout and installation
- →Commercial tenant improvement electrical
Pricing Factors
- ✓Number of circuits, outlets, and switches
- ✓Panel amperage and number of spaces needed
- ✓Wire gauge and run lengths
- ✓Local code requirements (AFCI, GFCI, tamper-resistant)
- ✓Conduit requirements (EMT, rigid, flexible)
- ✓Height and accessibility of work areas
Materials List
- •Romex (NM-B) or THHN wire
- •Electrical panels and breakers
- •Outlets, switches, and cover plates
- •Junction boxes and mud rings
- •Conduit and fittings (EMT, PVC, flex)
- •Wire nuts, connectors, and staples
- •Recessed light housings and LED trims
- •Ground rods and grounding wire
Estimating Tips
- ★Count every device (outlet, switch, light) and price per device for residential work — $150-$250 per device is a common range.
- ★Always verify panel capacity before bidding — an unexpected panel upgrade can add $2,000-$4,000 to a project.
- ★Include wire waste factor of 10-15% on every run to account for routing around obstacles.
- ★Factor in permit fees, inspection trips, and code-required testing in your overhead.
- ★Track your actual hours per device type to build accurate production rates over time.
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Common questions about electrical estimating
Most residential electricians estimate by counting devices (outlets, switches, lights) and pricing per device. A typical per-device price of $150-$250 covers labor, wire, box, device, and plate. Panel work, dedicated circuits, and specialty items are priced separately.
Journeyman electrician labor rates for estimating purposes typically range from $65-$120 per hour depending on region, with the fully burdened rate (including benefits, insurance, and overhead) often reaching $85-$150 per hour. Always use your actual burdened rate rather than industry averages.
A 200-amp panel upgrade typically costs $2,000-$4,500 installed, depending on whether the utility requires a new meter base and whether the existing wiring needs to be reworked. Include permit fees, utility coordination time, and a temporary power disconnect in your estimate. If the panel is in a finished space, add drywall repair and painting to your scope or exclude it clearly in writing.