Work Order Software That Connects the Office, Technician and Customer
Opsler is work order software for field-service contractors. Create the work order, assign it, let the technician execute it with or without a signal, close it with photographic proof and a signature, and turn it into an invoice — on one record nobody has to retype.
Free forever on Budding — 2 seats (1 admin and 1 technician), 50 jobs a month. Pro is $25 per seat per month, no seat minimum, with a 14-day trial and no card.
Work order
One record, start to finish
- Customer and site
- Address, phone, past visits
- Service
- Pricebook item, price, tax
- Checklist
- Required and optional steps
- Parts used
- Van stock, cost, location
- Labor
- WORK and PAUSE intervals
- Proof
- Before photos, after photos, signature
- Money
- Draft invoice, discount, warranty lines
Completion is blocked until a before photo, a customer signature and an after photo are all on the record.
What Is Field-Service Work Order Software?
Field-service work order software carries a customer’s service request from arrival to payment: the scope of work, the site, the technician, the schedule, the parts and labor consumed, the evidence it was done, and the invoice that follows.
Search results for work order management software mix two products that share a phrase and little else. One maintains your own equipment inside your own building. The other handles work that travels to somebody else’s address and ends in a bill. Opsler is the second kind: HVAC, plumbing, electrical, pest control, appliance repair, cleaning and similar trades.
A field-service work order
Raised by a customer. Travels to their address. Carries a price they agreed to, proof the work happened, and an invoice at the end.
An internal maintenance work order
Raised inside your own operation against your own asset. Never leaves the building, never gets invoiced, driven by a maintenance schedule rather than a customer.
Still working out which category you are shopping in? Start with what field service management software is.
Work Request, Estimate, Job and Work Order: What Changes?
The trade uses these four words loosely, and vendors use them differently again. Here is what each record is in Opsler, and what happens at each handover.
Work request
Demand, not commitment
A call, a self-booking from your website, or a lead you chased. It creates the customer and captures what they say is wrong. Nothing priced, nothing scheduled.
Estimate
A priced proposal
One price, or three tiers as Good, Better and Best. Approved with a six-digit code emailed to the customer plus a typed or drawn signature.
Job
The schedulable unit
What sits on the dispatch board with a date, a time slot or flexible window, a priority and its technicians. Converting an estimate carries the chosen tier across — pick Better and you get the Good and Better items, not the Best ones.
Work order
The record of the visit
Everything attached to that job: checklist, notes, before and after photos, WORK and PAUSE intervals, parts off the van, signature, warranty and invoice.
The handover that costs contractors most is estimate to job, where agreed prices get retyped and quietly changed. See how an approved estimate becomes a scheduled job.
The Complete Work Order Lifecycle
Most work order software owns part of this and hands the rest to a second product. The whole work order lifecycle runs on one record in Opsler, which is why the address, the part number and the agreed price are only ever entered once.
- Step 1
Request or estimate
A call, an online booking, or an approved estimate.
- Step 2
Create
Customer, site, service, checklist and priority on one record.
- Step 3
Schedule
A fixed time slot or a flexible all-day window.
- Step 4
Dispatch
Assigned on the board, pushed to the technician's device.
- Step 5
Field execution
On My Way, Arrived, In Progress — signal or not.
- Step 6
Proof
Before photo, checklist, parts, labor, after photo, signature.
- Step 7
Invoice
Sent from the field, or held for office approval first.
- Step 8
History
Filterable record with warranty and reschedule reasons.
Steps three and four happen on the live dispatch board, where every technician has a lane and unassigned work sits in a queue beside them.
Create Consistent Work Orders Faster
Two technicians hand back two different-looking jobs because the office wrote the work order two different ways. Opsler fixes that at the source: give a pricebook service a default checklist once, and every work order raised against it arrives with the same steps, each marked required or optional.
- Pick the customer — site address, phone and past visits come with them
- Choose the pricebook service; its price, tax rate and default checklist copy across
- Set a fixed start time, or a flexible window for anytime that day
- Set priority, estimated duration and the technicians assigned
- Add billable extras, custom parts, a discount and a parts or labor warranty
- Decide there and then whether this invoice needs office approval before sending
Statuses and service types are yours: each organization defines its own status list — name, color, order, which status opens a job, which close it, which transitions are allowed. When you create work orders from an approved estimate or an online booking, the customer is locked to the source record, so the job cannot drift onto the wrong account.
Start free and create your first work orderNew work order
Customer
Marisol Reyes — 214 Oak Ridge Dr
Service
AC diagnostic and repair
Scheduled
Fixed · 09:00 – 11:00
Priority
High
Technician
D. Okafor
Invoice approval
Required before sending
Checklist copied from the service
- Photograph the unit before starting
- Check refrigerant charge
- Record model and serial in job notes
- Photograph the completed repair
Schedule and Assign the Right Technician
Work order scheduling software earns its place the moment two jobs want the same hour. Opsler puts every technician in a lane, every unassigned job in a queue beside them, and tells you what you are about to break before you commit.
- Drag a job into a technician's lane, or Quick Assign for a one-click send
- Day, Week and Map views — chronological lanes, the whole week, or sites on a map
- Conflict detection at assignment, grouped by technician and naming the clashing job
- Exact-time collisions, overlapping windows and same-day clashes told apart, with assign-anyway when the emergency outranks the booking
- Team scoping, so a dispatcher only sees the technicians they manage
- Assignments and reschedules reach the technician's device immediately
- Route optimization on Pro through the Google Directions API, run deliberately
Assignment stays dispatcher-driven — Opsler does not guess a technician from a skill matrix or a GPS position and quietly book them. A named person decides, and the board shows what that decision costs. See how you schedule and dispatch work orders in detail.
Let Technicians Complete Work Offline
Plant rooms, crawl spaces, rural properties, the third basement of a commercial block. Most mobile work order software degrades to a read-only screen down there, and the paperwork gets rewritten in the van from memory.
Before you lose signal: Sync for Offline
One tap caches seven things onto the device.
With no connection at all, a technician can still:
- Open today's work with the full work-order detail and customer history
- Move the job through On My Way, Arrived, In Progress, Paused and Resumed
- Update the ETA and tick off checklist items
- Capture before and after photos
- Build the draft invoice, pulling parts from van stock
- Create a simple or Good/Better/Best estimate on the spot
- Complete the job and take payment on site
Every offline action queues and replays in order when signal returns — no export step, nothing to re-enter. Payments are protected, so a retrying sync cannot charge twice, and photos are compressed to 1280 by 1280 at 70 percent quality, keeping a full day of evidence inside the device’s budget.
The app installs from a supported browser on Android, iPhone, laptop or desktop — no App Store or Google Play download, so a new technician is working on their own phone the morning they are hired.
See how technicians complete work orders offlineCapture Labor, Parts and Proof of Work
Work order tracking software is only as good as what reaches the record. Opsler makes closeout the same screen the technician is already on, and refuses the completion if the evidence is missing.
Labor, as intervals
Time is recorded as WORK and PAUSE intervals rather than one total, and a pause carries its reason — parts run, lunch break, waiting for the customer. Billable minutes and dead time are separated on the record, not estimated afterwards.
Parts, from the van
Each part records the SKU, quantity, unit cost, total cost, the location it came from, who added it and when. Putting it on the invoice and consuming it from stock are one action.
Before and after photos
Stored as two separate sets, not one undifferentiated pile, so the condition found and the work delivered can each be shown on their own.
Signature and checklist
The customer signs on the technician's device, typed or drawn, stored with who signed and when. Checklist items record who completed them and at what time.
The closeout Opsler will not let a technician skip
- A before photo — checked against the offline queue too, so no signal is neither an excuse nor a blocker
- A customer signature, typed or drawn
- An after photo of the completed work
Miss one and the job will not submit — which is why a disputed job stops being an argument about what happened.
See how Opsler records labor time on every job and how it can track parts used on jobs across warehouses, trucks and vans.
Keep Customers Updated Without a Login
A customer work order portal that asks people to create an account gets used once. Opsler gives each job a private link instead.
- Live job status and the technician's ETA as it is updated from the field
- Pending estimates, approved with a six-digit code sent to their email
- The completed job detail once the visit is closed
- Invoice list and downloadable invoice PDFs
- Warranty coverage with the days remaining
- Chat with the technician while the job is live
The chat closes to read-only once the job is completed, so the thread stays on record without becoming a support channel your office has to staff. Customer contact runs on email and the portal link; text messaging is planned as a bring-your-own-provider option and is not live today.
See how the customer portal works
Turn Completed Work Into an Invoice
Work order invoicing goes wrong in the gap between the technician finishing and the office billing. Opsler closes it by building the invoice during the visit — the pricebook service, the parts pulled from the van, the extras added on site and the labor recorded are on it before the technician taps complete.
Technician sends it directly
The technician reviews the invoice on the completion screen and sends it. The customer has it before the van leaves the drive.
Office approves it first
The invoice lands in the Pending Approval queue instead, where an admin edits and releases it — catching the zero-dollar invoice, the wrong discount and the charge nobody added. Set per job, so the trainee is reviewed and the veteran is not.
Opsler charges no platform fee and is not a payment processor — money goes to your own processor account. On Pro you can export a QuickBooks- or Xero-formatted CSV file for manual import into your accounting package.
See how Opsler can turn completed work into an invoiceRecurring Work, Equipment and Warranty History
The second visit to a property should not start from nothing. Opsler keeps the agreement, the coverage and the history against the customer.
Recurring work orders (Pro)
Set the series once — daily, weekly, monthly or yearly, with an interval and the weekdays or day of the month it lands on, ending never, after a set number of visits, or on a date. Visits generate on the board on schedule, and the series is edited as a whole or one occurrence at a time.
Recurring maintenance contractsWarranty history (Pro)
Attach parts, labor or full coverage for 30 days, 90 days, 6 months, a year or a custom period. Raise a return visit as a warranty claim against the original job and the covered lines show as $0 with the original price struck through — the customer sees the value of the cover, you still see the real cost.
Warranty managementEquipment detail lives on the work order
Opsler records equipment where the technician needs it: in the job description and notes, on the checklist step that asks for a model and serial, in the before and after photos, and in the warranty attached to the job that replaced the part. It does not keep a separate serial-numbered asset register with its own depreciation and maintenance plan — that belongs to a facilities CMMS.
Search, history and the audit trail
Every work order stays searchable. Filter by status, date range, technician, customer, team, priority or service type, or narrow to jobs that have photos, have notes, have customer feedback, are missing an ETA, or have nobody assigned. One-tap presets cover today, this week, overdue and unassigned.
- Reschedule history with a reason code — parts needed, customer unavailable, access issue, weather — plus who moved it and from what date
- Parts and custom charges stamped with who added them and when, and custom parts carry a written reason
- Checklist items stamped with who completed each one and at what time
- GPS snapshots at en route, arrived, start and completion on Pro
- Time corrections recorded with a reason, a person and a timestamp, never silently overwriting the original
HVAC Work Order Example
HVAC work order software has to survive the no-cool call in August. Here is that call end to end, and what the work order carries at each step.
- 1
The call comes in
The dispatcher creates the customer, records the fault — upstairs unit running but not cooling — and books a same-day slot at High priority. Picking the AC diagnostic service copies its default checklist onto the work order: photograph the unit, check the refrigerant charge, record model and serial in the notes, photograph the finished repair.
- 2
It reaches the technician
The job appears in the technician's lane and on their device with the address, the fault, the checklist and the customer's previous visits. Before driving out they tap Sync for Offline.
- 3
On site
On My Way with an ETA updates the customer's portal link, then Arrived and Start Job. The before photo goes on the record. The diagnosis: a failed capacitor and a compressor near the end of its life.
- 4
The customer chooses
The technician builds a Good/Better/Best estimate on the spot — capacitor, capacitor with a longer parts warranty, or a new condensing unit — and sends it. The customer approves the middle option with the six-digit code emailed to them, and only the Good and Better line items carry into the job.
- 5
The repair
The capacitor comes off the van once: onto the invoice and out of van stock in the same action, at its real cost. The trip to the supply house is logged as a PAUSE with the reason parts run, so it is not billed as labor.
- 6
Closeout
The after photo goes on, the customer signs on the technician's phone, and a one-year parts warranty is attached. Opsler will not accept the completion until the before photo, the signature and the after photo are all present.
- 7
The money
This account requires office approval, so the invoice lands in the Pending Approval queue. The office checks the discount and releases it, and the customer opens it from the same link they have been watching all afternoon.
- 8
The next visit
A yearly maintenance series is set up on Pro. When the compressor fails inside the warranty period, the return visit is raised as a warranty claim against this job and the covered part shows $0 with its original price struck through.
Field-Service Work Orders vs CMMS
The work order software vs CMMS question decides whether the tool you buy fits at all, and the test is short: does the work order travel to a customer, or stay inside your own building? Opsler is built for the first. It is not an industrial or facilities CMMS, and it does not do predictive maintenance, IoT sensor triggers, meter-based scheduling or asset depreciation.
| Field-service work orders (Opsler) | A maintenance CMMS | |
|---|---|---|
| What it covers | A customer's equipment at the customer's address | Your own assets inside your own facility |
| Who raises it | A customer call, an online booking, or an approved estimate | An internal request, a meter reading or a preventive schedule |
| Billing | Priced, approved, invoiced and paid by the customer | Charged to an internal cost center, usually not invoiced |
| Dispatch | Traveling technicians, ETAs, routes and van stock | On-site staff moving between rooms |
| Preventive work | Recurring visits sold as a maintenance agreement | Condition-based and meter-triggered maintenance plans |
A small service business almost always wants the left-hand column: customer jobs priced, dispatched, evidenced and billed. If the work order never leaves your building and no customer ever sees it, buy a CMMS instead. Compare plans on the pricing page or ask us whether Opsler fits your trade.
Work Order Software FAQs
What contractors ask most often before committing to a work order system.
Pick the customer — site address and past visits load with them — choose a pricebook service, then set the date, a fixed start time or a flexible all-day window, a priority, a duration and the technicians. If that service carries a default checklist, its steps copy onto the work order automatically.
Yes. The Field Agent app installs from a supported browser on Android, iPhone, laptop or desktop — no App Store or Google Play download. Technicians move the job through On My Way, Arrived, In Progress, Paused and Completed, tick the checklist, capture photos and a signature, log van parts and build the invoice on one screen.
Yes. Sync for Offline caches today's jobs, the parts and service catalogs, tax settings, the van location, stock levels and customer history. With no connection a technician can still start, pause, resume and complete a job, update an ETA, tick checklist items, take before and after photos, build a draft invoice, create estimates and record a payment. Actions queue and replay on reconnection, and payments are protected so a retry cannot double-charge.
Yes, on Pro. Repeat daily, weekly, monthly or yearly with an interval — every two weeks, every third month — on chosen weekdays or a day of the month, ending never, after a set number of visits, or on a date. Visits generate on the dispatch board on schedule.
Opsler will not accept a completion without a before photo, a customer signature and an after photo. The before-photo check also reads the device's offline photo queue, so a technician in a basement is not blocked by their own signal. Photos are compressed to 1280 by 1280 pixels at 70 percent quality before upload.
Yes. Parts come off the technician's van stock, and each entry records the SKU, quantity, unit cost, total cost, the inventory location, who added it and when. Putting the part on the invoice and consuming it from stock are one action, so nothing is deducted twice.
The draft invoice is built during the visit from the pricebook service, the parts used, any extras and the labor time. It then takes one of two paths, set per job: the technician sends it from the field, or it enters the office queue as Pending Approval for an admin to edit and release.
Yes. Each job produces a private link showing job status, the technician and their ETA, pending estimates to approve with a six-digit emailed code, invoice PDFs, warranty coverage and a chat with the technician while the visit is live.
Budding is free forever — 2 seats (1 admin and 1 technician), 50 jobs a month, unlimited customers.
Related Features
Smart Dispatch Board
Lanes, conflicts and Quick Assign
Offline Technician App
A full workday without signal
Multi-Location Inventory
Parts across warehouses, trucks and vans
Automated Invoicing
Office approval before sending
Customer Portal
No-login job updates
Estimate to Job
Approved estimate to scheduled job
Recurring Maintenance
Visits that generate themselves
Warranty Management
Zero-priced covered repairs
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