What is a work order worth when it has no access instructions, no clear scope and no record of what the customer approved? The crew reaches the property, and the office starts answering questions that should have been settled before dispatch.
What is a work order? It is the job record that turns approved work into clear instructions for a worker or crew. It identifies the job, site, scope, timing, responsibility and evidence that must come back from the field.
A good work order does more than get someone to the address. It protects the approved scope, gives the crew a stop point and creates the record needed to invoice and cost the job.
What is a work order?
The short answer for a trade business
A work request reports a problem. A quote or contract settles what you have offered. Customer approval gives permission to start. The work order then directs a person or crew to perform and record that approved job.
The unit is the job. Give it one number from approval to closure. Put the same customer, site, scope and document references against the labour, materials, site notes and invoice.
A work order can be paper or digital. The format matters less than the control. The crew must know which record is current, what it allows and what must be returned before the job is closed.
What authority it gives the crew
A work order tells the assigned worker to carry out the stated scope. It can also show the customer's permission when it references an accepted quote, contract instruction or customer purchase order.
That authority has an edge. If the order says inspect an air-conditioning unit, it does not automatically authorise a replacement. If it says replace a bathroom exhaust fan but excludes ceiling chasing, the crew stops when chasing becomes necessary.
Write that edge down. Do not leave the technician to negotiate price and scope while standing under an open ceiling.
What it does not prove or replace
A work order does not create a trade licence, permit or inspection approval. It does not replace the accepted quote, contract or customer purchase order unless the actual terms say it does.
It also does not prove that every amount is payable. Field notes can prove that work occurred. The accepted quote, contract and approved site changes establish what you can bill.
Treat customer approval, crew instructions and regulatory permission as separate checks. Record each one before assigning the job.
Put the work order in the document chain
Documents go wrong when one is expected to do every job. Keep each document in its lane and link them with reference numbers.
| Document | What it does | What it does not do |
|---|---|---|
| Work request | Reports a fault, need or requested visit | Approve chargeable work |
| Estimate | Gives a likely price or range where the scope is not settled | Direct the crew to start |
| Quote | Defines proposed scope, exclusions and price | Record field completion |
| Purchase order | Records a buyer's permission to purchase stated goods or services | Give complete site instructions |
| Work order | Directs and records the approved job | Replace licences, permits or the accepted quote or contract |
| Site change | Approves work outside the original scope | Erase the original scope |
| Completion record | Shows what happened on site | Request payment by itself |
| Invoice | Requests payment for billable work | Direct the field work |
Start with the request. Review the site facts. Inspect where needed. Then prepare the estimate or quote. If you need help defining scope and exclusions, use the guide to writing a trade quote before creating the work order.
Wait for the required approval. That might be acceptance of your quote, an instruction under a service agreement or a customer purchase order. Read the actual document. A purchase order number on its own is not a scope.
Create the work order from the accepted quote, contract or instruction. Reference that document rather than copying disconnected fragments into a new description. After the visit, add the field record, approved site changes and cost entries. Review those records before issuing the invoice.
The chain should remain readable after the job closes:
- The customer reported a need.
- You reviewed and defined the work.
- The right person approved it.
- You issued instructions to the crew.
- The crew recorded what happened.
- Any extra work received separate approval.
- The office checked the record and invoiced the billable amount.
- The job costs stayed attached to the same job.
Settle the job before creating the order
Choose the work before assigning labour and materials. A rushed dispatch built from a vague customer message only moves the argument to the site.
Identify the customer, payer, site and asset
Record the customer requesting the work and the person or organisation expected to pay. They may not be the same.
Add the full service address, site contact, access route and the exact asset or work area. A property with several switchboards, pumps or rooftop units needs more than an address.
If access is limited to an approved arrival window, write it on the order. The crew should not discover a locked gate after travelling to the property.
Name the accepted job document
Reference the accepted quote, contract instruction, customer purchase order or maintenance schedule. Record who approved the work and when that approval was received.
Do not write approved when the customer has only asked for a visit. Decide whether the visit is an inspection, a chargeable diagnostic call or permission to complete a defined repair.
Separate inclusions from exclusions
Write the included work in observable terms. Name the item, location, task and expected result.
Then state the limits. Exclusions might cover concealed damage, making good, specialist access, hazardous material, excavation or work outside a named asset. Use the exclusions already accepted by the customer. Do not add new commercial terms at dispatch.
Turn important exclusions into stop points. Tell the technician what condition requires a call to the office before continuing.
Define completion
Finished must mean more than leaving the property. Write the result the crew must achieve and the evidence it must return.
That may include a test result, reading, photograph, commissioning record, serial number, customer acknowledgement or note explaining why the work could not be completed. Match the evidence to the actual trade and job.
Name the people who can approve changes
Record who may approve changes to scope, price and timing. Give the crew a contact route if site conditions differ from the order.
The person who opens the door may not have authority to spend money. The technician needs to know who can say yes before extra chargeable work starts.
Check permission before assigning the job
The work order is not a regulatory permission slip. Check trade authority, permits, inspections, worker cover and site safety through the body responsible for that question in the job's location.
United States
Ask your state contractor licensing board which contractor license class covers the job. Ask your state or city electrical, plumbing or mechanical licensing office which trade license the assigned worker needs.
Ask the local building department whether the work needs a permit or inspection. Keep the answer and permit status with the job rather than treating dispatch as approval.
For workplace safety duties, check OSHA (opens in a new tab). Do not use OSHA as the source for contractor licensing or local permits; those questions belong with the state, city or local body responsible for them.
United Kingdom
For gas work, check the engineer and business through the Gas Safe Register (opens in a new tab). For water fittings work in England and Wales, check the current Water Supply (Water Fittings) Regulations (opens in a new tab) and ask the local water undertaker about compliance.
For self-certifying notifiable electrical work under Part P in England and Wales, check the government's competent person scheme guidance (opens in a new tab). Ask building control, or building standards in Scotland, about building regulations approval for the job.
Take workplace health and safety questions for jobs in Great Britain to the Health and Safety Executive (opens in a new tab). For Northern Irish jobs, use the Health and Safety Executive for Northern Ireland (opens in a new tab). Record any required licence, approval or inspection reference before assigning the work.
Canada
Ask your provincial or territorial trade licensing and safety authority which trade licence and trade permit cover the job. For example, regulated technical work in British Columbia belongs with Technical Safety BC (opens in a new tab).
Ask the municipality about the business licence and building permit for that address. Use the Government of Canada permits and licences service (opens in a new tab) to find the public body responsible for the question.
Ask your provincial or territorial workers' compensation board what worker coverage the business needs. For workplace safety and worker coverage in British Columbia, use WorkSafeBC (opens in a new tab). Keep each answer against its own question. A municipal permit does not settle trade licensing or worker coverage.
Use change order for an approved site change. Do not call it a variation in the Canadian job record.
Australia
Ask your state or territory licensing regulator which trade licence, contractor licence and home building contract rules cover the work. For example, electrical licensing questions in Victoria go to Energy Safe Victoria (opens in a new tab).
Ask your state or territory WHS regulator about workplace safety duties. For example, New South Wales workplace safety questions go to SafeWork NSW (opens in a new tab).
Ask your state's workers' compensation insurer or regulator about cover for workers. For example, New South Wales worker cover questions go to the State Insurance Regulatory Authority (opens in a new tab).
Use variation for an approved site change. Record it without deleting the original scope or exclusions.
Choose a work order type that matches the job
A category helps the office set the right approval, priority and closeout record. Keep the categories plain.
Reactive repair or service call
Use this when a fault needs attention. State whether the authority covers diagnosis only, repair up to an approved limit or a fully defined repair.
Do not turn the customer's fault description into a technical conclusion. Record reported symptoms separately from the technician's findings.
Planned or recurring maintenance
Reference the asset and maintenance schedule. List the visit-specific tasks, readings and consumables to record.
For recurring work, create a distinct visit record under the ongoing agreement. One permanent order that is repeatedly overwritten will lose labour, material and fault history.
Inspection, testing or compliance visit
State what is being inspected or tested and what record must come back. Do not promise a pass result before the inspection occurs.
If remedial work needs separate approval, put that boundary on the order. The inspection result can then support a new quote or authorised instruction.
Callback, defect or warranty visit
Link the callback to the original job. Record the reported issue without deciding the cause before inspection.
Keep callback labour and materials visible even when the customer will not be invoiced. The business still needs the cost when reviewing the original job.
Multi-visit work
Keep one job number, then record each visit separately. Show the worker, date, time, materials, progress and reason another visit is needed.
Do not mark the whole order complete because one visit ended. Use a paused or return-required status until the defined completion test has been met.
Write an order the crew can follow
A usable order answers the questions the worker will ask at the gate, at the asset and before leaving. Use this blank structure on paper or in your job system.
WORK ORDER Job identity: [job reference] Customer: [customer name] Payer: [payer name if different] Service address: [full address] Site contact: [name and contact details] Access and arrival window: [instructions] Accepted job document: [quote, contract instruction or purchase order reference] Approval received from: [name or role] Approval date: [date] Work order type: [repair, maintenance, inspection, callback or multi-visit] Priority and reason: [priority based on job facts] Assigned worker or crew: [name] Required trade authority: [licence or authorisation to check] Asset or work area: [exact item and location] Approved scope: [tasks and required result] Inclusions: [included labour, materials and access] Exclusions: [work not included] Stop points: [conditions requiring office approval] Planned materials, plant and access equipment: [items] Permit or inspection status: [status and reference] Job-specific hazards and controls: [details] Site-change approver: [name or role] Approval route: [phone, written approval or other agreed route] FIELD RETURN Arrival and departure: [times] Labour by worker: [hours or time entries] Materials installed or used: [items and quantities] Materials returned or wasted: [items and quantities] Work completed: [plain description] Tests, readings and results: [records] Photos or attachments: [references] Unfinished work or defects: [details] Parts or return visit required: [details] Customer acknowledgement: [name, date and note] Worker completion note: [name and date] Office closeout status: [reviewed, invoiced or held]
Keep the scope readable on a phone screen or printed page. Attach drawings, schedules and permits where needed, but do not bury the main task in an attachment the crew cannot open.
Add planned labour and materials only after scope and access are settled. Planning cannot rescue an undefined job.
For job costing, give every worker and purchaser the same job reference. Record labour, installed materials, waste, equipment and subcontractor charges against it.
Build the Oak Street work order from the approved quote
Oak Street is the house electrical example. R. Chen's quote Q-1847 covered a 150mm bathroom exhaust fan ducted through the roof and four LED downlights. The quoted total was 1,105.
Estimate E-1847 had shown a range of 900–1,400. It was not the final crew instruction. The work order should reference approved quote Q-1847 and carry its exact scope and exclusions.
The ceiling was lined. The quote excluded chasing. Put both facts where the worker can see them:
- Approved work: install the 150mm bathroom exhaust fan ducted through the roof and four LED downlights.
- Site condition: lined ceiling.
- Exclusion: chasing.
- Stop point: contact the office before extra cable or chasing outside the quote.
On site, extra cable and chasing became necessary. The crew stopped at the exclusion. The 160 change was approved on site before the extra work continued.
In the United States and Canada, record that as a change order. In the United Kingdom and Australia, record it as a variation. Keep the original 1,105 quote intact and attach the approved 160 site change to the same job.
After completion, invoice INV-1847 totalled 1,265. The work order supports that invoice by showing the original work, the site condition, the stop, the separate approval and the completed work. It does not replace the quote, site-change record or invoice.
Dispatch and track the current order
Set the priority
Base priority on the job facts. Consider immediate danger, loss of an essential service, risk of further property damage, promised response terms and the order in which other approved jobs were received.
Write the reason beside the priority. That stops every caller's urgent request from becoming the same priority.
Schedule and assign responsibility
Name the worker or crew responsible for the next action. Record the appointment window, travel constraints and site contact.
Give the field one current version. If the office updates access details or scope instructions, record the change and tell the assigned worker.
Yes Foreman can keep job details available to the office and field through its mobile tools for field crews.
Use statuses consistently
Define each status in plain language. Requested means not yet approved. Scheduled means an appointment exists. Dispatched means the current order has been sent to the assigned worker. On site means the visit has started.
Paused means the crew has stopped for approval, access, parts or another named reason. Completed means the required field evidence has been returned. Closed means the office has reviewed costs, billable work and unresolved items.
Control extra work on site
The customer points to another fault. The ceiling is different from the quote. The technician finds damaged work behind a panel. None of those facts silently expands the approved scope.
Stop. Make the site safe if immediate action is needed. Record the condition with notes and photographs. Then describe the proposed extra work, price effect and time effect before continuing.
United States and Canada: use a change order
If you need to know how to write a change order, start by linking it to the original job. State the discovered condition, the added or removed work, the price effect, the schedule effect and the person approving it.
A usable change order form keeps the original scope visible. It does not rewrite history. For a detailed US process and field list, use How to Write a Change Order Before Extra Work Starts.
In the United States, use license and labor in local records. In Canada, use licence and labour. Both markets use change order for this document.
United Kingdom and Australia: use a variation
Describe the original scope first. Then record the site condition, changed work, price effect, timing effect and approval.
Follow the accepted quote or contract and ask the local licensing regulator about any contract requirement you need to settle. Do not assume a technician's note or a conversation with an unauthorised site contact is enough.
Preserve both records
Attach the approved change to the work order. Update the crew's current instructions, but do not delete the original exclusion or replace the accepted quote.
If approval is refused, record what remains incomplete and leave the excluded work out. If approval is pending, pause the order with a named owner for the next action.
Complete the work order at the site
A technician leaving the site is not a completed record. Capture the facts while the work, packaging and test instruments are still in front of the crew.
Record labour by worker and visit
Enter arrival, departure and labour time for each worker. Separate travel, site work and return visits if that distinction matters to your own costing method.
For multi-visit work, keep each visit under the same job number. Do not reconstruct the week from memory when payroll or invoicing is due.
Record material movement
List what was installed or consumed. Record items returned to stock and material wasted because those costs should not disappear.
Match supplier purchases and subcontractor charges to the same job reference. A receipt in a vehicle or an invoice in an email inbox is not yet a job cost.
Return the required evidence
Attach the readings, test results, photographs, asset details and completion notes named on the order. Record serial numbers where they matter to the actual job.
Note any defect, unfinished work or part still required. Name the person responsible for booking the return visit.
Separate acknowledgement from payment approval
A customer acknowledgement can record attendance, access, work observed or site handover. It is not automatically acceptance of an invoice amount.
Use the accepted quote, contract, purchase order and approved site changes when deciding what to bill. Keep proof of the visit and proof of the debt connected, but do not treat them as the same thing.
Review the record before invoicing
Match the completed field notes to the original approved scope. Then match each extra task to its approved site-change record.
Resolve missing labour, materials and subcontractor costs before closure. Ask the worker while the details are fresh. Do not fill gaps with guesses.
Keep unapproved extras off the invoice until the payment issue is resolved. A technician's useful work can still fall outside the customer's permission to spend.
Send only the supported amount into the invoice. The invoice should identify the completed job and approved changes without becoming a second work order. For a closer document comparison, use the invoice and quote guide.
Use the closed order for job costing
Job costing starts with records from the job, not a monthly total divided by a guess. Put direct labour, materials, subcontractors and other direct job costs under the same job number.
Compare those costs with the right approved price. Do not treat cash received, tax collected or the invoice total as profit.
On the original Oak Street quote, the approved price was 1,105. The supplied job cost was 850. Measured against that original quote, profit was 255 because 1,105 − 850 = 255.
Margin was 255 ÷ 1,105, or about 23%. Markup was 255 ÷ 850, or 30%. Markup is added to cost to reach a price. Margin is profit as a share of the price.
Invoice INV-1847 was 1,265 after the approved 160 site change. The costs of that change are not supplied. You cannot combine the 1,265 invoice with the 850 original job cost to claim a profit figure.
Use the profit margin calculator with your own completed job figures. Keep the approved price and its matching costs on the same basis.
Common questions
What is an example of a work order?
The Oak Street record is an example: it references quote Q-1847, names R. Chen and 14 Oak Street, directs installation of the 150mm bathroom exhaust fan ducted through the roof and four LED downlights, shows the lined ceiling and keeps chasing excluded. It also tells the crew to stop for approval if chasing or extra cable is needed.
Is a work order the same as an invoice?
No. A work order directs and records the job, while an invoice requests payment for supported charges. Connect them with the same job and document references, but do not use one in place of the other.
What is the difference between a PO and a work order?
A purchase order records a buyer's permission to purchase specified goods or services. A work order tells the assigned worker what approved job to perform, where to perform it and what field record to return.
Who sends a work order?
A customer may issue one under an existing service arrangement, or the trade business may create an internal order after receiving approval. In either case, the office sends the current job instructions to the assigned worker or crew.
Does a customer need to sign every work order?
Not necessarily. The required approval depends on the accepted quote or contract, local requirements and the type of work. Record the actual approval route instead of assuming a signature is always required or never required.
If a new worker asks, “What is a work order for this job?”, hand over the record with the accepted quote, scope, stop point and return fields already filled in. Do that before dispatch.