To bid electrical work, define the scope, count the materials, estimate person-hours, add job costs and overhead, then calculate the selling price. Give the customer a clear description of what that price includes, what it excludes, and how changes will be approved.
For residential jobs, a short walkthrough and a clear scope can matter more than a complicated estimating system. A new circuit through an accessible basement is a different job from the same circuit through finished rooms.
Start with our free electrical estimate template. The example below shows the pricing method; it is hypothetical, in USD, and is not a wiring design or a local rate survey.
1. Settle the scope before counting materials
| Confirm on the walkthrough | What it changes in the bid |
|---|---|
| Exact fixtures, devices, and locations | Equipment cost, quantities, and installation work |
| Existing panel and proposed loads | Whether the job needs additional review or a separately priced upgrade |
| Cable route and ceiling/wall access | Labor, protection, access openings, and restoration |
| Customer-supplied equipment | Who orders it, checks compatibility, and handles missing parts |
| Permit, inspection, and utility coordination | Fees, visits, timing, and responsibility |
| Drywall, paint, and cleanup | What the electrician completes and what another trade completes |
Use the latest plans and note revisions. If you cannot inspect a route, state the assumption and the process for pricing a different condition. Independent Electrical Contractors recommends reviewing drawings and addenda, clarifying scope, and using similar completed jobs to inform costs. IEC bidding guide
Don't promise a panel upgrade merely because the customer asks for a bigger breaker. Resolve the actual design and local requirements before fixing the equipment scope. The estimate records that decision; it doesn't perform the electrical design.
2. Build the cost of one defined job
Consider a dedicated appliance circuit and four device replacements, with the route and equipment already confirmed. This exercise assumes accessible work, no panel replacement, and no drywall or painting. The amounts below are sample inputs you should replace.
| Cost input | Calculation | Cost |
|---|---|---|
| Specified materials and devices | Supplier allowance | $320 |
| Loaded labor | 8 person-hours × $50 | $400 |
| Permit/inspection fee | Example local allowance | $100 |
| Equipment and consumables | Job allowance | $60 |
| Direct cost | Sum | $880 |
| Allocated overhead | 8 person-hours × $30 | $240 |
| Cost including allocated overhead | $880 + $240 | $1,120 |
| Selling price before sales tax | $1,120 ÷ (1 − 20%) | $1,400 |
The eight person-hours include procurement, travel, protection, installation, testing, and cleanup for this fictional job. They are not a published labor unit. If two people each work four hours, that's also eight person-hours.
The $50 loaded labor cost includes wage-related costs; it does not include the separately allocated $30 overhead. Avoid charging overhead twice if your labor rate already recovers it. Materials should include nonrecoverable purchasing taxes and delivery costs where applicable, separately from sales tax charged to the customer.
At $1,400, this example leaves $280 after the listed costs and overhead allocation, or 20% of the selling price. It does not establish the business's annual net profit. Multiplying $1,120 by 1.20 instead would produce $1,344 and a 16.7% margin on those costs. See markup vs margin.
3. Test the assumption most likely to change
Suppose the route requires four more person-hours. At $50 loaded labor plus $30 overhead per hour, the cost rises by $320. At the same 20% target, the price rises by $400, from $1,400 to $1,800, before any additional materials or restoration.
That is why a vague “electrical work: $1,400” line is weak. A customer needs to know the route and access assumptions behind it.
| Condition | How to handle it |
|---|---|
| Known extra work | Include it in the base scope or price it as a separate option |
| A selection still undecided | Name an allowance and explain how the final selection adjusts the price |
| Hidden condition you cannot verify | State the assumption and require approval of additional scope |
| A revision after acceptance | Document the change and price before proceeding |
Use our change-order pricing guide when additional work changes both cost and schedule. Don't apply a blanket contingency and then charge for the same known work again.
4. Turn the calculation into a readable proposal
Your internal calculation and customer proposal serve different purposes. Keep costs and margin in the estimating worksheet. Give the customer the agreed work, selling prices, options, and terms.
Supply and install the dedicated circuit shown on [approved scope/plan], following the surveyed route through [accessible area]. Replace four devices at [locations] with [specified products]. Include [permit/inspection scope], testing, labeling, and cleanup. Exclude panel replacement, drywall patching, painting, and repairs outside the stated scope. Additional work requires written price and schedule approval. Price valid until [date]. Payment schedule: [agreed terms].
Fill in the equipment details and replace every bracket before sending. Include your business identity, required license information, customer and job address, estimate number, and acceptance details. Confirm local contract and deposit requirements rather than copying a universal percentage.
Offer a surge protector, upgraded dimmer, or extra circuit separately when it is genuinely optional. The customer should be able to accept the base work without accidentally accepting every upgrade.
5. Compare the bid with the completed job
Record actual person-hours, supplier costs, extra trips, and approved changes. Compare the same scope: if the customer added work, don't blame the original estimate for all of the extra hours.
For the next similar bid, update the specific assumption that was wrong. Was access harder? Did a supplier delivery require another visit? Was testing missing from your allowance? Those observations improve a price book more than simply raising every price by 10%.
Dave's electrical estimating and invoicing workflow keeps supplied quantities, saved prices, options, approvals, and invoices together. If your bottleneck is measuring plan sets, compare dedicated takeoff and estimating tools first.
Common questions
Should I bid residential electrical work per square foot?
It can be a rough cross-check for closely comparable projects, but it hides device counts, equipment, access, and specification differences. Build the actual scope first. A small kitchen remodel can involve more work than a much larger open room.
Should troubleshooting have a fixed price?
Define what the diagnostic charge covers and what happens when that limit is reached. You can quote a known repair after diagnosis. An undefined fault and a surveyed installation need different pricing assumptions.
Can I use the same price on every similar job?
Reuse the task structure, then check quantities, supplier costs, travel, access, and local requirements. Our electrical pricing guide includes a price-book worksheet for that process.