Service upgrade estimating
Electrical service upgrade costs can change significantly from one property to another. The estimate should account for the existing service, meter location, service entrance equipment, panel condition, grounding and bonding needs, utility coordination, access, permits, inspections, and any related repairs or exclusions.
Common service upgrade factors
- Existing service size, requested service size, and load calculation requirements.
- Meter base, service mast, riser, weatherhead, service entrance conductors, and main disconnect scope.
- Panel replacement, feeder work, breaker changes, labeling, surge protection, and grounding/bonding review.
- Utility scheduling, temporary power considerations, inspection timing, and AHJ permit requirements.
- Access constraints, working clearances, exterior restoration, wall repair, trenching, or overhead service changes.
What to make clear in the proposal
A service upgrade proposal should separate included electrical work from work that is excluded or conditional. Clearly state assumptions about utility readiness, site access, permit handling, inspection timing, customer responsibilities, and unknown existing conditions.
Panel upgrade estimating
Panel upgrade estimates should clearly distinguish a panel replacement from a broader service upgrade. The contractor should confirm the panel location, existing equipment, circuit count, service capacity, grounding and bonding needs, available working space, permit process, and utility coordination before finalizing a proposal.
Panel details to review
- Existing panel condition, amperage, breaker count, labeling, spare capacity, and circuit identification.
- New panel type, main breaker or main lug configuration, required breakers, surge protection, grounding and bonding scope, and feeder changes.
- Access constraints, wall or trim repair, working clearance, outdoor equipment exposure, and customer scheduling needs.
- Permit requirements, inspection scheduling, local AHJ requirements, and utility disconnect/reconnect needs.
- Excluded work such as drywall repair, painting, circuit troubleshooting, service upgrades, or utility delays unless included.
Panel estimate sections
| Section | Example review items |
|---|---|
| Labor | Setup, removal, installation, terminations, labeling, testing, cleanup, and inspection support. |
| Materials | Panel, breakers, connectors, grounding components, labels, fasteners, conduit, fittings, and miscellaneous supplies. |
| Assumptions | Accessible equipment, compatible feeder conditions, available utility scheduling, and no hidden damage unless otherwise noted. |
| Exclusions | Wall repair, painting, branch circuit repairs, service upgrade scope, utility fees, or engineering unless included. |
Estimate review checklist
- Confirm the scope with the utility, AHJ, project documents, and site conditions.
- Review all labor tasks, material quantities, equipment availability, taxes, fees, and markup.
- Document exclusions for drywall, siding, trench repair, painting, utility delays, or customer-supplied equipment when applicable.
- Use a reviewed estimate before creating the customer-facing proposal PDF.
PhaseBid helps contractors organize the estimate and proposal workflow. For related context, review the electrical bid software page and the electrical proposal software page.
Review PhaseBid features, compare pricing, or Start Free when you are ready to test the workflow.
Contractor disclaimer: This resource is general estimating workflow information, not electrical, legal, pricing, or code advice. Always verify pricing, labor, material quantities, site conditions, scope, permits, and local code requirements before submitting a bid or purchasing materials.
