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Contractor glossary

Callback

Updated

Definition

A callback is a return visit to fix a problem with work you already finished, usually at no charge because something about the original job didn't hold up. Each one costs labor, drive time and often parts, plus the paying job that time slot could have held.

Also called: Go-back, Warranty call

What counts as a callback

A callback is an unplanned trip back to finished work: a fitting that starts to drip, a new circuit that keeps tripping, a leak at fresh flashing, streaks a house wash left behind. (Here it means a trip, not a returned phone call.)

Three kinds of return visits aren't callbacks:

  • Planned return trips, for a part on order or a second phase, are part of the original job and belong in its price.
  • Punch list items you agreed to before final completion are still the original job. Walk the punch list with the customer before you leave so they don't turn into callbacks.
  • New, unrelated problems, such as a different failure or damage the customer caused, are a new service call. Show what you found and get approval before you bill; your terms should already say whether a trip charge applies.

Your workmanship warranty puts the line in writing: what you fix for free, and for how long. Some manufacturer warranties cover a failed part but not the labor to replace it, so your terms should also say who pays for that trip.

What a callback really costs

The visit is the small part: tech time, drive time, fuel and parts. The bigger costs are the paying job that slot could have held, a customer who trusts you a little less, and the margin on the original job.

Example: A repair sells for $600 and costs $360 in parts and labor, a $240 gross profit and a 40% margin. Two weeks later a fitting leaks. The callback takes 1.5 hours on site plus 30 minutes of driving: 2 hours at a loaded labor cost of $50 an hour is $100, plus a $40 part and $20 for the truck, so $160. The job's gross profit drops to $80, about 13%. If that slot could have held a $300 paid call, the real cost is higher still. The numbers are made up for illustration.

How to track callbacks

  1. Log each one as its own job, linked to the original and invoiced at zero, so the cost stays visible instead of vanishing into overhead.
  2. Record the cause from a short, fixed list: workmanship, missed diagnosis, part failure, customer use, or unrelated (billable).
  3. Note the original tech, the job type and the days since completion.
  4. Work out a callback rate: callbacks divided by jobs completed in the same period, for the shop, each tech and each job type.
  5. Review it monthly and fix whatever repeats.

Example: A shop completes 200 jobs in a quarter and logs 10 callbacks, a 5% rate. Seven trace back to one task, so the fix is a checklist step, a better part or a new procedure for that task, not a lecture to the whole crew. The numbers are made up.

Common mistakes

  • Calling them free because the tech is paid anyway. Those hours could have been billed. How to set your labor rate prices this nonbillable time in.
  • Burying them in overhead. Job costs look better than they are, and you can't see which task, tech or product keeps coming back.
  • Arguing over your own mistake. Go back fast, fix it and keep the record.
  • Giving away unrelated work. Explain the difference before you start, not on the invoice.
  • Blaming the tech by default. Rushed schedules, missing parts and no checklist cause callbacks too.

How it connects

Callbacks pull down gross margin without getting their own line on the profit and loss statement, which is why the P&L guide suggests tracking them as a separate job type, and job costing shows each job's margin after its return trips. A task that keeps coming back may be underpriced or under-diagnosed; how to price plumbing jobs covers fixing the price book.

Go deeper

GuideHow to Read a Profit and Loss Statement for ContractorsRead a contractor P&L line by line: revenue, job costs, gross margin, overhead and net profit, plus cash vs accrual and a 30-minute monthly review.GuideHow to Set Your Labor RateBuild your labor rate from real costs: billable hours, payroll burden, overhead and profit, with worked examples from HVAC, roofing, plumbing and other trades.HVAC guideHow to Invoice HVAC JobsWhat to put on HVAC service and replacement invoices, plus warranty registration, permits, deposits, financing payouts, maintenance plans and refrigerant records.Plumbing guideHow to Price Plumbing JobsA practical way to price plumbing work: flat-rate books vs hourly, service-call and after-hours fees, parts markup, water heaters and drains.
Workmanship warrantyA workmanship warranty is your promise to fix, at no charge for a set period, problems caused by how you installed or did the work. It stands behind your labor; defects in the equipment or materials themselves fall under the manufacturer's warranty.Job costingJob costing is recording what each job actually cost (materials, labor at its full hourly cost, subcontractors, permits, disposal and return trips) and comparing it with the estimate and the price, so you can see which jobs made money, which didn't and why.Punch listA punch list is the written list of small items still to finish or fix at the end of a job, such as touch-ups, missing trim or adjustments, that the contractor completes before the customer signs off on the work and pays the final balance.Gross marginGross margin is gross profit as a percentage of revenue: what's left of each sales dollar after direct job costs (materials, field labor, subcontractors, permits), before overhead. A $10,000 job that costs $6,000 to deliver has a 40% gross margin.Trip chargeA trip charge is a flat fee a contractor charges for traveling to a job, separate from the price of the work itself. It covers drive time, vehicle cost and dispatch, and it's owed whether or not the customer approves a repair, so it must be disclosed before the visit.OverheadOverhead is the cost of running your business that isn't tied to a specific job: office and dispatch wages, rent, insurance, marketing, software, phones, accounting and similar costs you pay whether or not today's jobs happen. Your prices have to recover it.

See every term in the glossary