How Long Should an Electrical Estimate Take? (And How to Cut It in Half)

Realistic Benchmarks by Project Type

There's no single correct answer to how long an estimate should take — it depends heavily on project complexity, the quality of documents received, and the estimator's familiarity with the product type. That said, here are reasonable benchmarks for panelboard and switchgear estimation:

Single Board — Simple Configuration

A single panelboard with a clear schedule, no complex specifications, and standard breaker types: 2–4 hours. This includes reading the schedule, building the BOM, pricing, and producing a quote document. Experienced estimators working from good templates can be faster.

Multi-Board Commercial Package

A commercial building package with 5–15 panelboards, a detailed Division 26 specification, and a mixture of MDBs, distribution boards, and sub-boards: 8–20 hours. The specification review alone can account for 2–4 hours. BOM assembly for each board, cross-checking against the single-line, and producing a comprehensive quote adds the rest.

Complex Switchboard — Hospital or Data Centre

Critical facilities projects with stringent specifications, form of separation requirements, complex protection relay schedules, and multiple switchboards: 20–40+ hours for a complete tender package. These projects often also require clarification RFIs and may have multiple addenda to track.

Where the Time Actually Goes

If you've ever tracked your time through an estimate in detail, the breakdown is usually surprising. In a typical panelboard estimation workflow:

• Reading and interpreting spec documents: 20–35% of total time. Spec documents are long, dense, and require careful attention to extract relevant requirements.
• Manual data entry from schedules: 15–25%. Transcribing breaker types and ratings from PDF schedules into a spreadsheet or BOM is tedious and error-prone.
• BOM building and pricing: 20–30%. Assembling the material list, looking up pricing, and applying your cost model.
• Quote document preparation: 10–20%. Reformatting BOM data into a client-facing document.
• Review and correction: 10–15%. Checking your own work, correcting errors, and confirming totals.

The two largest time consumers — spec reading and manual data entry — are also the two areas where digital tools have the most impact.

How to Cut Estimation Time Without Cutting Accuracy

AI-Powered Specification Reading

Rather than reading a 200-page specification cover to cover, AI spec analysis tools allow you to ask specific questions: "What form of separation is required?", "Is busbar required to be copper?", "Which manufacturers are approved for circuit breakers?" The tool queries the document and returns the relevant clauses in seconds.

This doesn't replace reading the spec entirely — you still need to understand the requirements — but it eliminates the time spent locating relevant clauses across a large document. That alone can save 1–2 hours per complex tender.

Structured BOM Templates

Most panelboard estimators are quoting variations of a relatively small number of panel configurations. An MDB for a commercial building has similar structural elements whether it's in a $2M or $20M development — the ratings change, the circuit count changes, but the basic BOM structure is the same.

Templates that pre-populate your BOM structure and prompt you for the variables — rather than building from a blank sheet each time — eliminate a significant amount of setup time. The estimator's cognitive effort goes into the variables that matter, not the repetitive structure.

Integrated Workflow: Schedule to BOM to Quote

A major source of wasted time in traditional workflows is the multiple re-entry of the same information. You read the schedule, enter data into a spreadsheet, manually price each item, then copy the results into a Word document for the quote. Each transfer is both a time cost and an error opportunity.

Platforms like Electronate are built around eliminating these transfers — connecting schedule data directly to a structured BOM, applying pricing automatically, and generating the quote output from the same dataset. The result is that you enter information once and it flows through the entire workflow.

The Competitive Argument for Speed

In panelboard and switchgear manufacturing, the ability to respond quickly to tender invitations is a genuine competitive advantage. Head contractors working to tight construction programmes often appreciate suppliers who can provide accurate quotes quickly — and will direct repeat business to those suppliers.

If your current estimation process means you can respond to 4 tenders per month while a competitor with better tooling can respond to 7, that gap compounds over time into a significant revenue difference. The investment in process improvement and better tools pays for itself quickly when measured against the opportunity cost of the tenders you couldn't respond to.

Conclusion

Cutting your estimation time in half isn't about working faster — it's about eliminating activities that don't add value: re-entering data already captured elsewhere, manually searching spec documents, building BOM structures from scratch on every job. The time saved goes directly into either better quality on the bids you do submit, or the capacity to submit more bids per period.

Start by tracking where your time currently goes on a few representative bids. The categories where you're spending the most time are your highest-value improvement targets.