An electrical business needs a reliable van with shelving, hand and power tools, meters and testers (multimeter, clamp meter, insulation tester as you grow), ladders, an opening stock of wire, breakers and devices, licensing and bond fees, insurance, and software for estimates and invoicing. Materials for large jobs are bought per project. Price jobs from materials, labor hours, permit fees and drive time, then add overhead and profit.
Worked example: panel upgrade estimate
| Line | Notes |
|---|---|
| Panel and breakers | Supply house quote |
| Wire, connectors, grounding | Per job |
| Permit and inspection | Local fee |
| Labor | Electrician hours plus helper |
| Utility coordination | Time for disconnect and reconnect |
| Overhead and profit | Your margin |
List every line, because utility scheduling and inspection visits add time that is easy to forget.
Testing equipment priorities
- Non-contact voltage tester and quality multimeter
- Clamp meter for load checks
- Circuit tracer for service calls
- Insulation resistance tester for larger work
- Personal protective equipment rated for the work
Cash flow on larger jobs
Commercial and new construction jobs often pay on progress billing with retainage held until completion. Budget for materials you buy weeks before you are paid, and keep a line of credit or reserve so payroll never depends on a slow general contractor.
Itemized budget
| Line | What it covers | How to get the number |
|---|---|---|
| Van and upfit | Shelving, ladder rack | Dealer and upfitter |
| Testers and meters | Voltage testers, multimeter, clamp meter | Supplier quotes |
| Power tools | Drills, saws, hole saws | Supplier quotes |
| Fish tapes and rods | Pulling wire | Supplier quotes |
| Opening stock | Breakers, devices, wire | Supply house list |
| License and bond | State fees | Board schedule |
| Insurance | Liability, workers' comp | Agent quotes |
| Software | Estimates, dispatch | Monthly plans |
| Website | Services, license, form | From $399 plus $30/month Website Care |
Costs owners forget
- Permit and inspection fees
- Return trips for failed inspections
- Utility coordination time
- Continuing education for license renewal
One-time costs
| Item | Your quote |
|---|---|
| Van and tools | $ ______ |
| Licensing | $ ______ |
| Inventory | $ ______ |
| Website build and domain | $ ______ |
Monthly costs
| Item | Your quote |
|---|---|
| Insurance | $ ______ / month |
| Fuel | $ ______ / month |
| Materials | $ ______ / month |
| Software | $ ______ / month |
| Website care | $ ______ / month |
Free tools
Common questions
What is the biggest startup cost?
Usually the van, tools and testing equipment, followed by insurance.
Should I stock materials?
Stock common devices and breakers; order specialty materials per job.
What is retainage?
A percentage of each payment held until the project is complete, common in commercial work.
How do I price service calls?
Many use a trip or diagnostic fee plus flat-rate repairs.
Should I take deposits?
For large jobs with expensive materials, many contractors take deposits; follow state rules.
Sources
Sources checked October 6, 2026. Rules, fees and forms change; confirm details with the agency or provider before you act. This guide is general information, not legal, tax or insurance advice.
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