The customer reports a dead socket. Your electrician arrives, tests the socket and finds the fault sits somewhere else on the circuit. Poor electrician call out pricing turns that unknown fault into an unlimited promise.
Sell the visit as a defined diagnostic job. State what attendance covers, what the electrician will test and where work stops for approval.
Record the reported fault before you dispatch
A reported symptom is not a diagnosis. Write down what the customer can see, hear or smell without adopting their guess about the cause.
Ask:
- What has stopped working?
- When did the problem start?
- Is it constant or intermittent?
- What still has power?
- Has anyone recently worked near the affected circuit?
- Is there heat, smoke, water, visible damage or an unusual smell?
- Where are the consumer unit and affected rooms?
Book fault-finding for the reported symptom. Do not promise to replace a socket, light fitting or protective device until testing supports that repair.
Screen danger reports separately from routine bookings. Collect enough detail to choose the attendance priority, but do not diagnose the fault over the phone. Tell the customer what the urgent attendance covers and what the electrician will decide after inspecting the property.
Confirm access and authority
Ask who will meet the electrician and who can approve more work. Record keys, tenants, pets, parking restrictions, occupied rooms, ceiling access and equipment shutdowns.
The consumer unit or electrical cupboard may be locked when the electrician arrives. A missing keyholder does not remove your travel, labour or van cost. State what happens if access prevents the agreed tests.
Record the service address and postcode before dispatch. The address determines travel, parking and which approval route may apply to later work.
Define what the electrician diagnostic fee buys
An electrician diagnostic fee pays for attendance and a stated investigation. It does not automatically buy a completed repair.
Make the diagnostic visit produce a useful record. Include:
- Booking and dispatch within the stated service area.
- Travel to the named property.
- An initial site and safety assessment.
- Testing of accessible components linked to the reported fault.
- A clear limit on included diagnostic time or work.
- Notes covering tests, findings and access limits.
- A recommended repair or next diagnostic step.
The visit can be complete without a repair. If the electrician performs the agreed tests and records the findings, you have delivered the diagnostic scope.
State what the fee does not include. Common exclusions include concealed wiring, opening finished surfaces, lifting flooring, specialist access equipment, replacement parts, parking charges, extended tracing and a return visit with ordered parts.
Parts inspected are not parts supplied. Keep those descriptions separate on the job record and invoice.
Choose the charging method before booking the visit
Pick one charging method that matches the uncertainty. Do this before giving the customer a price.
Fixed diagnostic visit
Use a fixed price when the service area, access, attendance and included testing have firm boundaries. State the diagnostic deliverable and the stop point.
This method fails when the wording merely says fault repair. The actual fault may sit behind a finished surface or beyond the included testing.
Call-out charge plus diagnostic time
Use a separate call-out charge when you want attendance to cover booking, dispatch, travel and arrival. Charge diagnostic time under the terms accepted at booking.
Say when diagnostic time starts, how it is measured and what happens when the included allowance is used. The electrician must stop and ask for approval rather than letting the job drift.
Time and materials with an approval cap
Use time and materials when tracing is genuinely open-ended. Set a written approval cap based on time, work completed or another clear boundary from your own process.
At that boundary, explain what has been tested and what remains uncertain. Get approval before more testing, access work or repair begins.
Urgent and out-of-hours attendance
Keep standard appointments separate from urgent or out-of-hours work. The two services can carry different dispatch, travel and labour costs.
Write a separate scope for each. Tell the customer what the urgent attendance includes, when payment is due and where diagnosis stops. Do not hide the difference in an invoice sent after the visit.
Start electrician call out pricing with your own cost base
A reasonable price is the selling price produced by your actual cost base, service boundary and markup policy. It is not a copied market average.
Follow the whole call-out from the first phone call to the closed job:
- Customer intake and booking.
- Dispatch and route planning.
- Travel to the property.
- Site setup and initial checks.
- Testing and fault tracing.
- Customer explanation and approval.
- Test notes, photographs and reporting.
- Payment handling and job close-out.
Count labour across that path. The electrician's wage is only one input. Use the employment costs carried by your business and the office time spent booking and closing the job.
Add van use, test-equipment costs, consumables, payment costs and an allocated share of overhead. Include parking when your terms say it sits in the quoted price. Exclude it clearly when it will be charged separately.
Use this framework:
Diagnostic call-out cost base = booking and dispatch labour + travel labour + diagnostic labour allowance + reporting and close-out labour + van and equipment costs + consumables + included minor materials + allocated overhead Selling price = diagnostic call-out cost base + markup
Your electrician call out pricing should recover every cost caused by the visit. If travel is covered by a separate attendance charge, do not recover the same travel cost again through the diagnostic time rate.
Use the practical guide to pricing a job to turn your labour, overhead and markup policy into a repeatable selling price.
Keep markup and margin separate
Markup is what you add to cost to reach the selling price. Margin is the profit left after cost, shown as a share of the selling price.
Do not use a target margin as though it were the same percentage markup. Work from one method and document it. The markup and margin explainer gives you the formulas without turning them into a borrowed rate card.
Set the booking terms before the customer accepts
Give the customer the terms before dispatch. Plain wording prevents an attendance charge from looking like a surprise later.
State:
- Whether the price includes travel.
- What diagnostic work is included.
- The charging unit after included work ends.
- Whether materials are included.
- How parking and restricted access are handled.
- Whether the displayed amount includes or excludes VAT.
- When payment becomes due.
- Who can approve further work.
- What happens when the customer cancels or access is unavailable.
Make the VAT treatment visible on the quote and invoice. Check your business's tax position with HM Revenue & Customs (opens in a new tab) rather than copying another firm's wording or assumptions.
Get active acceptance. Record the customer's name, the accepted terms, the date and the acceptance method.
Do not make a broad claim that every call-out charge is legal or illegal. The contract, booking method and customer circumstances matter. Clear pre-booking terms and recorded acceptance are operational safeguards, not a legal ruling. For contracts agreed online or at a distance, check the UK Government guidance on online and distance selling (opens in a new tab) and take qualified advice on the particular contract when needed.
Write the electrical service call quote
An electrical service call quote should identify the property, reported symptom and accessible testing. It should also state the time boundary, exclusions, approval point, VAT treatment and payment terms.
Use customer language for the symptom, then use trade language for the scope. Write investigate reported loss of power to the kitchen sockets. Do not write repair kitchen circuit unless repair is actually included.
Keep electrician labour and materials for any resulting repair outside the diagnostic scope. Price them after testing identifies the work and access conditions.
Use this copy-ready template:
Electrical diagnostic call-out Customer: [name] Service address and postcode: [address] Reported symptom: [customer's description] Attendance type: [standard / urgent / out-of-hours] Attendance window: [agreed window] Included attendance: [booking, travel and arrival terms] Included diagnostic work: [accessible inspection and testing] Diagnostic boundary: [included time or defined work] Deliverable: [test notes, findings and recommended next step] Exclusions: [concealed wiring, opening surfaces, parts, parking, specialist access, extended tracing and return visits] Charging after the boundary: [unit and approval method] Materials treatment: [included minor items or charged separately] VAT treatment: [state clearly] Payment point: [when payment is due] Stop point: No additional testing, access work or repair will begin without approval from [authorised person]. Customer acceptance: [name, date and method]
A reusable quote template for trade jobs can hold the accepted scope, exclusions and approval details in one document.
Stop when diagnosis turns into more work
The customer reports a dead socket, but the visible socket is not the source. The included diagnostic work is nearly used. Stop.
Tell the customer what the electrician tested, what was found and what remains uncertain. Describe the next step without presenting it as a confirmed repair if more tracing is still required.
Further work may involve lifting flooring, opening a finished surface, isolating equipment or arranging access to a locked area. Those tasks change the cost and risk. Price them separately.
Use a new repair quote when diagnosis has produced a separate piece of work. Use a variation when the customer adds work to a scope already accepted and underway. Record the extra scope, price and approval before continuing. The electrician variation process for refurbishment jobs shows how to keep that decision out of the final-invoice argument.
Worked example: Oak Street
This is a sample electrical job, not a call-out rate card. All amounts are sample currency units.
Quote Q-1847 for R. Chen at 14 Oak Street totalled 1,105. It covered a 150mm bathroom exhaust fan ducted through the roof and four LED downlights. The ceiling was lined, and the quote excluded chasing.
Extra cable and chasing became necessary on site. The customer approved a 160 variation before work continued. Invoice INV-1847 therefore totalled 1,265.
The exclusion created the stop point. The variation recorded the extra work and approval. The invoice then matched what had been authorised.
Price the repair from the site findings
Build the repair scope from the diagnosis, not the first phone call. Record the affected circuit, readings, components tested, observed damage, access limits and temporary actions.
Write down what remains uncertain. If the electrician could not isolate equipment, say which tests were not completed. If tracing requires opening a wall or ceiling, state who will open it and who will make good afterward.
List electrician labour and materials only when the findings support them. Separate parts, installation labour, access work, parking, specialist equipment and return visits. A specialist part that must be ordered belongs in the repair quote, not inside an undefined diagnostic promise.
Route the approval check by UK nation and work type
Record the property nation and proposed repair before checking the approval route. Do not guess the route from the customer's original symptom.
For self-certification of notifiable domestic electrical work under Part P in England and Wales, ask a competent person scheme (opens in a new tab) whether the proposed work sits within the registration and self-certification route you plan to use. Write the answer against the job.
For a building regulations approval question in England or Wales, check the proposed work with building control (opens in a new tab). Record what the job address and scope require before promising the customer an approval path.
For the equivalent approval question in Scotland, check building standards (opens in a new tab). Keep that check tied to the proposed repair and property location.
These checks come after diagnosis because the confirmed work controls the question. A report of flickering lights does not tell you whether the resulting repair needs notification, approval or neither.
Job-cost the completed call-out
Close the loop after the invoice. Compare the original allowance with the actual cost of booking, dispatch, travel, testing, reporting and payment handling.
Record materials used during diagnosis. Add van, consumable and equipment costs on the same basis used in your price. Keep repair costs separate if the repair became another quote or approved variation.
Cost tracking should expose repeated misses. If electricians regularly spend longer finding parking, collecting keys or writing test notes than the allowance covers, change the next price or tighten the service boundary.
Review job profitability against the accepted selling price for that scope. Do not judge the call-out by the invoice total alone when the invoice also contains repair work or a variation. Use the finished-job cost review process to compare estimated and actual costs without mixing separate scopes.
For the Oak Street quote, the original job cost was 850 against the original quote of 1,105. Profit was 255 because 1,105 minus 850 equals 255. Margin was about 23%, and markup was 30%.
Do not calculate profit from invoice INV-1847 using that cost. The cost of the 160 variation is not supplied, so combining the 1,265 invoice with the 850 original job cost would give a false result.
Put the scope into the next booking
Turn the finished-job review into one change on the booking form. Add the missing access question, alter the diagnostic boundary or correct the cost allowance that caused the miss.
That is how electrician call out pricing improves. One completed job gives you a better intake record, a cleaner stop point and a price built from current business costs.
Yes Foreman can keep the quote and job record together for an electrical trade business, but the document still needs your scope and your figures. Open the next call-out template now and add the diagnostic deliverable, exclusions and approval contact before another booking comes in.