Locksmithing runs on urgency more than most trades. A good share of the work is someone standing outside their own front door, and pricing that reflects that reality from day one avoids awkward conversations at the worst possible moment.
Decide your call-out and after-hours rates before your first emergency job
Working these out on the phone with a stressed customer waiting leads to either underselling difficult, unsociable-hours work or looking like you are improvising a number on the spot. A fixed call-out fee plus a clear out-of-hours premium, decided in advance, removes that pressure entirely.
Show the emergency fee as its own line, always
It is the first number a stressed customer is going to look at. Show it transparently instead of folding it into one lump total, and it builds trust in the moment and protects you if the total is ever questioned afterward.
Explain destructive vs non-destructive entry on the invoice
A lock that had to be drilled instead of picked is a different, more expensive job than a straightforward non-destructive entry, and the invoice should say which one happened. Listing the method alongside the replacement lock explains exactly why the total is higher than a simple pick-and-open would have been.
Name the security rating on any lock you fit. BS 3621 is the common UK reference. Many home insurance policies require a specific standard to be valid, and a documented rating is exactly what a customer needs if their insurer ever asks.
Record the property address, not just the customer
For landlords and letting agents managing several properties especially, noting the specific address on the invoice turns a generic document into a proper record they can match against the right tenancy. It is the detail most often requested after the fact if a dispute over which property was serviced comes up.
Build a relationship with local letting agents
Letting agents need a reliable locksmith regularly for end-of-tenancy changeovers, lockouts, and periodic security upgrades, and a single good relationship with an agent managing dozens of properties can outweigh a lot of one-off retail callouts. Prompt, well-documented invoicing is often what wins that account over a competitor who is only marginally cheaper.
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