Start with a business you can identify
A locksmith works on the hardware that controls access to your home, car or business. Before arranging a visit, establish who is sending the technician and whether that company actually operates in the Las Vegas valley.
Ask for the business name, its local business address and whether it provides mobile service. A mobile locksmith does not need a storefront open to walk-in customers. It should still have an identifiable business behind the phone number.
Ask whether the company is licensed and insured. Clark County requires locksmiths to be permitted, and individual technicians need police work cards issued through the Las Vegas Metropolitan Police Department. These are separate things worth checking.
Cairn is general liability insured. A certificate of insurance is sent to commercial clients on request, giving property managers documentation to review before authorizing work. Insurance and a work card serve different purposes, so one does not replace the other.
Ask who will actually do the work
The person who answers the phone may not be the person who arrives. Ask whether the technician is a W-2 employee of the company or someone dispatched through a separate business.
That distinction tells you who is responsible for the visit, the invoice and any workmanship issue afterward. If another company will perform the work, find out its name before agreeing to dispatch.
Every Cairn Lock & Key technician is a W-2 employee of the company. No subcontractors are sent to homes. Technicians arrive in marked white vans, wear uniforms and carry photo identification and current work cards.
At the door, compare the company identification with the name given during your call. You can ask to see the technician’s work card before allowing access to the property.
Get the dispatch charges on the phone
A service call fee and the cost of opening or repairing a lock are not necessarily the same charge. Ask what is due for the visit itself, whether that fee applies if you decline the repair and what additional charges apply outside regular hours.
Before agreeing to dispatch, establish these details:
- The service call fee and what it includes.
- The likely price range for the described work.
- Any after-hours or travel charges.
- Whether the final price requires inspection.
- How payment and invoicing are handled.
A dispatcher can give a price range, but the condition and type of lock may change the work required. A price range is not the same as an approved final price.
For Cairn, the service call fee is $39 inside its standard service area. Additional charges, where applicable, are explained before dispatch. The technician examines the hardware before preparing the written price.
Read the written price before work starts
Once the technician has inspected the lock, ask for the full price in writing. It should account for the service call, labor and any replacement parts needed. You should be able to review and approve that amount before work begins.
Drilling, cutting or replacing hardware should not become an assumed part of the job. If inspection shows that one of those steps is necessary, the technician should explain the reason and obtain separate approval.
If the scope changes during the repair, the technician should stop and present a revised price. Do not rely on a verbal description of charges that will appear only after the work is finished.
Check the work and keep the invoice
Before the technician leaves, operate the lock together. Try the keys, close the door and confirm that its latch and deadbolt engage correctly. A working cylinder is of little use if the door no longer closes properly.
Request an itemized invoice identifying labor, parts and the service call. Keep it with any warranty information. If a repaired or installed lock develops a problem later, that record identifies the work performed and the company responsible for it.
A locksmith you can identify and hold accountable has more than a business name. Look for an identifiable technician, clear dispatch terms and your approval before the work begins.

