High-security locks, fitted for you
Keep control of who can make another key. Cairn installs and services high-security locks for homes across the Las Vegas valley.
- Keys cannot be copied at hardware stores or kiosks
- Grade 1 hardware with hardened parts
- Medeco, Mul-T-Lock and Schlage Primus serviced
Answered day and night
A Cairn dispatcher answers every day of the year.
Licensed and insured
Employee technicians carry photo ID and a police work card.
Your price comes first
Approve the written price on a tablet before work begins.
When tighter key control matters
A high-security cylinder is worth considering when you need to limit who can obtain another working key, or when ordinary hardware no longer suits the door.
Too many keys in circulation
You have handed out keys over time and want a new system where additional copies require authorization.
A change of occupants
When someone moves out, a restricted key system gives you a controlled starting point for issuing keys.
Keys shared with contractors
If several people need occasional access, recorded key issuance helps you keep track of the copies.
Basic lock hardware
A Grade 3 residential lock can be replaced with higher-grade hardware when you want a heavier-duty cylinder.
A failing high-security lock
A stiff, damaged or seized cylinder needs inspection before anyone decides whether repair or replacement is appropriate.
Several people need keys
Cairn services existing Medeco, Mul-T-Lock and Schlage Primus cylinders when a lock needs attention.
What goes into the installation
The cylinder, key system and door hardware need to work together. We inspect what is already fitted before recommending a change.
Grade 1 lock hardware
We fit high-security hardware selected for the door, including cylinders with hardened components.
Restricted key control
The keyway is patented, and blanks go only to the contracted locksmith. No hardware store or kiosk copies keys. Each key is stamped and logged.
Existing lock inspection
We check the cylinder, latch and door alignment before deciding which hardware needs attention.
Installation and testing
The fitted lock is tested with its keys, including checking that the door closes, latches and locks correctly.
What determines the written price
The $39 service call fee is separate from labor and parts. After inspection, you receive the full written price to approve before work begins.
Cylinder and hardware grade
The selected high-security cylinder and Grade 1 hardware affect the parts cost.
Number of locks
Fitting one entry door involves different labor and parts from replacing cylinders on several doors.
Door and frame condition
A door that drags, binds or has a poorly aligned strike may need adjustment before the lock works correctly.
Failed cylinder removal
A seized cylinder may require drilling. We explain the replacement cost and obtain separate approval first.
Time of service
A $45 after-hours fee applies from 9 PM to 7 AM, on Sundays and on major holidays.
From the first call to the final key
We establish what you need, confirm permission to work on the property and check the hardware before making changes.
Tell us about the lock
Give the dispatcher your address, lock type and reason for calling. You'll hear the service call fee and an initial price range.
Confirm access and authority
The technician arrives with photo ID and a work card, then checks your identification and connection to the property.
Inspect and approve
We examine the existing cylinder and door, explain the proposed work and give you a written price before starting.
Fit, test and document
We complete the approved work, test the keys and door with you, then provide an itemized invoice showing labor, parts and the service call.
Questions about restricted keys
The main difference from an ordinary lock is control over additional keys. These details matter before choosing a system.
Call (702) 000-0000All questionsCan someone make a copy of my high-security key at a hardware store?
Not with the restricted systems described here. The patented blanks are distributed through the contracted locksmith, so a standard hardware store or kiosk cannot make another copy.
Do you work on Medeco locks that are already installed?
Yes, Cairn services Medeco high-security hardware, along with Mul-T-Lock and Schlage Primus. The technician inspects the existing hardware to determine what work is possible.
What happens if my high-security lock seizes?
We inspect the lock before selecting an entry or repair method. If drilling is necessary, we explain it and provide the replacement price for your approval before proceeding.
Is a Grade 1 lock different from a regular residential lock?
Grade 1 is the highest ANSI/BHMA hardware grade and is used in commercial and heavy residential applications. Grade 2 covers residential and light commercial use, while Grade 3 is basic residential hardware.
Can I get additional restricted keys later?
Yes. Cairn cuts additional keys as the contracted locksmith. Every key is stamped and logged, and released only to authorized contacts named on the account after a signed request.
Other ways to manage your locks
Restricted key systems
Keep additional key copies under authorized control with a restricted key system.
Deadbolt installation
Fit a deadbolt and check that its bolt seats fully in the reinforced strike.
Medeco locks and hardware
Learn about the Medeco cylinders and hardware Cairn services.
Lock installation and replacement
Replace worn locks or change the hardware grade on an existing door.
Put your keys under better control
Cairn serves the Las Vegas valley. Call about a failed lock that needs urgent attention, or use the request form to discuss a planned installation.