Electrical business guide
How to estimate electrical jobs
For electrical work, a reliable process should measure scope, quantities, uncertainty and approval before work starts. Record panel, circuit, test result, permit and material, and itemize each service call, labor hour, device and circuit that affects the price.
An electrical estimate should identify circuits, devices, access, labor, materials, testing and any separately priced permit or inspection. Use measured quantities and a defined scope, then explain which conditions could require a revised estimate before extra work begins.
Measure devices and labor separately
List the number and specification of outlets, fixtures, circuits or panels included. Cable runs, wall construction, working height, access and shutdown requirements can affect time even when the device count is unchanged. Record these assumptions rather than pricing only from the number of fittings.
Use person-hours for labor. Two electricians on site for four hours represent eight person-hours. Separate installation time from testing, travel and administration according to the business’s costing method so that costs are included once.
Worked electrical estimate
This hypothetical estimate illustrates arithmetic only. It does not specify an electrical design, code requirement or recommended trade rate. Confirm material specifications and required procedures for the actual location and work.
| Cost item | Example |
|---|---|
| 8 person-hours × $40 loaded labor | $320 |
| Devices and cable | $240 |
| Access equipment | $60 |
| 8 hours × $15 allocated overhead | $120 |
| Total allocated cost | $740 |
| Price at a 20% margin on allocated cost | $740 ÷ 0.80 = $925 |
Document exclusions and acceptance
State whether patching, painting, specialist access, permits and third-party inspection are included. Identify any assumptions about existing wiring and the procedure for reporting a condition that changes the scope. Do not treat an estimate as confirmation that an installation meets local requirements.
The customer should receive the proposed work, validity period, schedule, payment terms and a clear approval method. Keep the accepted estimate with work records, material purchases and any approved change; the final invoice should identify the completed scope rather than repeat an unexplained lump sum.
Frequently asked questions
How do I calculate electrical labor for a crew?
Add each worker’s planned hours and multiply them by the relevant loaded labor cost. Two workers for four hours equal eight person-hours.
Should permits and inspections be included in an electrical estimate?
State explicitly whether they are included, separately priced or the customer’s responsibility. Confirm the actual requirements with the responsible local authority.