Las Vegas home locks that work
From a new set of house keys to a door that will not lock, Cairn handles residential lock and hardware work throughout the Las Vegas valley.
- Rekeying, repairs and new lock installation
- Licensed and insured mobile locksmiths
- Written price approved before work begins
The lock work your home needs
We work on the locks you use every day, from the front deadbolt to the gate latch. The technician checks what is already there before recommending a repair or replacement.
Rekeying and keys
Rekey existing locks so lost, stolen or old keys stop working. Key several locks alike when they share a compatible keyway.
Learn moreNew and replacement locks
Repair sticking cylinders, replace worn hardware or fit a deadbolt where better locking hardware is needed.
Learn moreSmart and keypad locks
Install keypad, Bluetooth or Wi-Fi locks and set up access on your phone, including hardware you purchased yourself.
Learn moreGates, mailboxes and more
Service private mailbox locks, gates, sliding-door locks, broken keys and door hardware that no longer works correctly.
Learn more
Eight reasons homeowners call us
Some calls start with a key that no longer turns. Others start with a move, a change in who has access or a plan for new hardware.
Moving into a home
Have the existing cylinders checked and rekeyed so keys held by previous occupants no longer operate them.
Lost or stolen keys
Change the working key without replacing a serviceable lock, where the cylinder permits rekeying.
Keys held by former occupants
Update access after a roommate or tenant moves out, with the property owner's authorization where required.
A sticking lock
A stiff key or seized cylinder needs inspection to determine whether adjustment, repair or replacement makes sense.
A door that will not latch
A shifted strike, dragging door or misaligned latch can prevent a working lock from securing the door.
A hardware upgrade
Move to a higher-grade deadbolt, change the finish or add a different type of lock to suit the door.
After an attempted entry
Replace damaged locking hardware and inspect the strike and surrounding fittings before the door returns to use.
A new smart lock
Replace a compatible deadbolt with a keypad or phone-controlled model and have the setup checked at the door.
New home rekeying
Start your new home with new keys
Moving into a house does not tell you how many keys already exist. Builders, agents, previous owners and other people may have received copies. Rekeying changes the working keys while keeping suitable hardware on the door. It is a practical first job after taking possession.
Cairn checks each cylinder and lock before rekeying. Compatible locks can share one house key. Get $20 off when four or more locks are rekeyed within 60 days of closing or move-in. Offer expires December 31, 2026. Mention it when booking.
- Prior key copies may still be in circulation
- Serviceable locks can keep their existing hardware
- Compatible cylinders can share one house key
- Every lock is checked for wear and operation
Keep the lock or replace the hardware
Changing who has a key and changing the strength or condition of a lock are different jobs. The right choice depends on the existing cylinder, hardware and what you want changed.
Rekeying
Rekeying changes the pins inside a compatible cylinder. The old keys stop operating it, but the installed lock stays in place.
- Suited to hardware in good working condition
- Changes which keys operate the cylinder
- Keeps the existing lock and finish
- Does not strengthen worn or low-grade hardware
Replacement
Replacement puts a different lock on the door. It is appropriate when the existing unit is damaged, unsuitable or no longer meets your needs.
- An option for worn or corroded cylinders
- Allows a change of style or finish
- Makes higher-security hardware possible
- Can introduce keypad or connected access
The technician inspects the lock, door and compatibility before recommending either option. Some cylinders cannot be rekeyed, and certain damaged locks cannot be repaired.
Choosing hardware for each door
Lock types serve different purposes. ANSI/BHMA grades distinguish Grade 1 for heavier use, Grade 2 for residential and light commercial use, and Grade 3 for basic residential use.
Standard deadbolts
A conventional keyed deadbolt suits an exterior entry door where a separate locking bolt is wanted.
High-security locks
Higher-security cylinders suit exterior doors where stronger hardware or more controlled key duplication is a priority.
Keypad locks
A keypad deadbolt lets household members enter a code instead of using a physical key for routine entry.
Smart locks
An app-connected lock suits a home where access is managed through a phone or compatible home system.
Lever and knob sets
Handles and levers suit passage and entry doors, with latch operation and door alignment checked during fitting.
Gate and mailbox locks
Gate locks face outdoor heat and windblown dust. Mailbox locks serve your own box. Only the Postal Service handles USPS cluster units.
Smart locks
Smart locks fitted to your door
A smart lock has to fit the door and move its bolt without resistance. Before installation, we measure the door, check the existing openings and confirm the latch lines up. For Wi-Fi models, the signal at the door also matters. Cairn installs both supplied hardware and customer-purchased locks.
Installation includes adjustment, phone pairing, user-code setup and a demonstration of the backup key and battery changes. You retain the administrator account and all access credentials. On sun-facing Las Vegas doors, heat can shorten battery life and fade keypads, so battery checks and free-moving hardware matter.
- Door thickness, backset and openings checked
- Customer-supplied locks carry the labor warranty only
- Codes demonstrated, none retained by Cairn
- Sun exposure and battery care explained
Securing your door after a break-in
A damaged lock or strike needs attention before the door is put back into service. Cairn can replace and reinforce locking hardware, then provide an itemized invoice for your records or insurer.
Lock replacement
Remove damaged locking hardware and fit a suitable replacement, with the new lock tested at the door.
Strike and reinforcement
Inspect the strike area and fit reinforcement hardware where the existing door and frame permit it.
Door hardware repair
Repair or adjust latches, strikes, hinges and alignment. Door and glass replacement are outside Cairn's work.
Rekeying after damage
Change the operating keys on unaffected, compatible cylinders when access needs to be reset.
What happens during a home locksmith visit
Every residential visit follows a clear sequence. You know who is coming, what work is proposed and what it will cost before you authorize it.
Call or send a service request
Call for urgent work or send a request for a planned visit. Dispatch asks about the address, lock and problem, then confirms availability and the service call fee.
Meet your technician
A text identifies the assigned technician before arrival. At the property, the technician shows identification and checks your authority to request the work.
Review the written price
The lock and door are inspected, and you approve the full written price before work starts. Drilling or replacement requires separate approval.
Check the finished work
The technician tests each key, latch and lock with you. Your itemized invoice lists the service call, labor and each part.
Who comes to work on your home
Cairn sends its own employed technicians to residential calls, not subcontractors. Identification, authorization and careful inspection are part of the visit.
Licensed and insured
Cairn operates as a licensed locksmith business and carries general liability insurance.
Identification at the door
Technicians arrive in uniform with photo ID and a current Las Vegas Metropolitan Police Department locksmith work card.
Careful entry methods
For home lockouts, the technician chooses a method after inspection and favors non-destructive entry when the lock permits it.
Workmanship warranty
Our 12-month workmanship warranty means that if a lock Cairn installed, rekeyed or repaired stops working correctly because of our work, a technician returns to fix it at no charge.
A practical home lock checklist
Walk through the doors and access points you use. These eight checks help identify hardware that needs attention or access that should be updated.
Exterior door locks
Turn each key from the outside and operate each lock from inside. Note any stiffness or loose hardware.
Deadbolts and strikes
Check for a full 1 inch bolt throw and a reinforced strike fixed with 3 inch screws reaching the wall stud.
Sliding glass doors
Confirm the sliding-door lock engages correctly and any secondary locking hardware operates as intended.
Outdoor gates
Operate gate locks and latches, especially where heat, frame movement or windblown dust affects their movement.
Mailboxes
Check your private mailbox lock. USPS-owned cluster mailbox units must be serviced through the Postal Service.
Spare house keys
Review who holds copies and whether those people still need access.
Previous occupants
Consider whether keys issued to a former owner, tenant or roommate still operate the property.
Smart-lock accounts
Review active user codes, app users and who controls the administrator account.
“We had the locks rekeyed after moving into our house in Summerlin. The technician checked the cylinders first and explained which doors could share a key. We approved the written price before he started, and he had us test every new key before leaving. The whole process was straightforward.”
Daniel R.
Questions about your home's locks
A few details about the existing hardware can change the work required. These are the questions homeowners commonly ask before scheduling a visit.
Call (702) 000-0000All questionsShould I rekey my locks or replace them?
If the hardware is in good condition and you only need different keys, rekeying may be enough. Replacement is more appropriate for damaged, worn or unsuitable locks, or when you want a different grade or type. The technician checks the hardware before recommending either.
Can you make all my house locks use one key?
Often, yes, when the cylinders use a compatible keyway. Locks from different brands or with different cylinder designs cannot always be keyed alike. We check compatibility before proposing a one-key setup.
Can you install a smart lock I already bought?
Yes, provided the lock fits your door and operates correctly. Installation can include phone pairing, code setup and adjustment of the strike. For customer-supplied hardware, Cairn’s warranty applies to the labor, not the lock itself.
Will you have to drill my lock if I'm locked out?
Most standard residential locks can be opened without damage, but the technician must inspect the lock first. Drilling is reserved for situations where other appropriate methods will not work. You approve any drilling and the replacement price before it happens.
Can I have the locks changed if I'm renting?
Rental lock changes require approval from the landlord or property manager. You will also need identification and a lease or other confirmation of your connection to the property. Cairn checks authorization before changing the hardware.
Can you fix a door that won't latch properly?
Yes, Cairn repairs and adjusts latches, strikes, hinges and related door hardware. The technician checks whether the trouble is in the lock or the way the door meets the frame. Full door, frame and glass replacement are not included.
Do you come to Henderson and Boulder City?
Yes, Cairn provides mobile residential service throughout the Las Vegas valley, including Henderson, Summerlin and Boulder City. Boulder City visits carry an additional $25 travel charge, and overnight emergency availability there depends on a van being available. Call to confirm service near the edge of the area.
What affects the price of residential lock work?
The lock type and grade, number of cylinders, selected parts, door condition and whether repair or replacement is required all affect the total. A $39 service call fee applies separately inside the service area, with applicable after-hours charges. The technician provides the full written price after inspection.
Get your home locks working properly
For a home lockout or failed lock, call Cairn. For planned rekeying or installation across the Las Vegas valley, send a service request.