Locksmith
Lock Repair Cost Calculator
Prices a lock repair, which is often adjustment rather than parts.
Result
A planning estimate, not a quote. Access, the age of the equipment, what is found once it is opened up and local labour rates all move the real figure, sometimes a long way.
Get a Free Business AuditHow the calculation works
Time, small parts and the call-out. Many lock faults are not component failures at all: a door that has settled, a loose hinge, a strike slightly out of position, or a cylinder that has never been lubricated all produce symptoms people read as a broken lock. Those are adjustment jobs with minimal parts, and the labour is diagnosis followed by a short fix. Genuine component failures, a sheared spindle, a broken spring, a worn cylinder, need the part and are still usually cheaper than replacement if the hardware is otherwise good.
What moves the number
- Whether the fault is alignment, lubrication or an actual broken component.
- Parts availability, since older or unusual hardware may not have spares.
- Whether the hardware is worth repairing, as low grade hardware often is not.
- Whether other doors have the same problem, which suggests a building movement cause.
Where this one goes wrong
Check the door before the lock. A latch not engaging, a key that is hard to turn with the door open but easy with it closed, or a bolt that binds are alignment symptoms, and adjusting the strike or the hinges fixes them for almost nothing. Replacing hardware on an alignment fault leaves the customer with the same problem and a new lock. Be honest about when repair is not worth it too: spares for cheap hardware often cost most of a new lock and the rest of it is worn anyway, so a repair that will fail again shortly is not a favour. Where several doors in a building show the same fault, the cause is movement rather than hardware.
Before you quote
- Test the lock with the door open and closed to isolate alignment faults.
- Check hinge screws and strike position before ordering parts.
- Say plainly when repairing low grade hardware is not worth it.
Questions
About this calculator
Is my lock broken or is it the door?
A good test is operating the lock with the door open. If the bolt or latch moves freely open but binds when closed, the problem is alignment between door, frame and strike rather than the lock. That is an adjustment, not a replacement, and costs a fraction as much.
Is a lock worth repairing?
Good quality hardware usually is, since a spring or a spindle is cheap against a new lockset and the rest of the lock is sound. Low grade hardware often is not, because the spare costs most of a replacement and the remaining components are worn too. Saying so is more useful than selling the repair.
Several doors in my building are sticking. Why?
When it is more than one door, the cause is usually the building rather than the hardware: seasonal movement, settlement or humidity changing timber dimensions. Adjusting strikes and hinges addresses it, and it may recur seasonally, which is worth explaining rather than replacing hardware repeatedly.
The formula
total = hours x people x rate + parts + call-out, then sales tax
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How to use this calculator
- Hours on site (h). Enter your own figure; the page starts at 0.8 h.
- People needed. Enter your own figure; the page starts at 1.
- Labour rate charged ($). Enter your own figure; the page starts at $120.
- Parts and materials ($). Enter your own figure; the page starts at $35.
- Call-out or diagnostic fee ($). Enter your own figure; the page starts at $95.
- Sales tax (%). Leave at zero if you are quoting before tax.
The result updates as you type, so you can try a figure, see what it does to estimated total, and change it back. Nothing you enter is sent anywhere or saved.
A worked example
These are the figures the calculator opens with. Every number in the results column below is produced by the same calculation the page runs, so you can follow it through before putting your own figures in.
What goes in
| Input | Value |
|---|---|
| Hours on site | 0.8 h |
| People needed | 1 |
| Labour rate charged | $120 |
| Parts and materials | $35 |
| Call-out or diagnostic fee | $95 |
| Sales tax | 0% |
What comes out
| Result | Value |
|---|---|
| Estimated total main result | $226 |
| Labour | $96 |
| Before tax | $226 |
| Sales tax | $0 |
About $226: $96 of labour, $35 of parts and a $95 call-out.
How sensitive the answer is
Holding everything else steady and changing only labour rate charged, this is what happens to estimated total. It is worth knowing which of your inputs the answer actually hinges on, and which barely move it.
| Labour rate charged ($) | Estimated total |
|---|---|
| $60 | $178 |
| $90 | $202 |
| $120 example above | $226 |
| $180 | $274 |
| $240 | $322 |
Every other input is held at the example value while this one changes, which is not how a real job behaves. Treat it as a guide to which number matters most, not as five separate quotes.
What each figure means
- Hours on site (h)
- Measured in h, between 0 and 400, starting at 0.8 h.
- People needed
- A number, between 0 and 40, starting at 1.
- Labour rate charged ($)
- A money amount, starting at $120.
- Parts and materials ($)
- A money amount, starting at $35.
- Call-out or diagnostic fee ($)
- A money amount, starting at $95.
- Sales tax (%)
- Leave at zero if you are quoting before tax.
What the results tell you
| Result | What it is |
|---|---|
| Estimated total | The headline result. A money figure. |
| Labour | A money figure. |
| Before tax | A money figure. |
| Sales tax | A money figure. |
Estimating is the easy part
The jobs you never hear about cost more than the ones you mis-measure. BDEVY builds the marketing, systems and automation that bring them in.