What Is Lock Rekeying and How Does It Work
Rekeying changes the internal pin configuration inside your existing lock cylinder so the old key no longer works. A locksmith removes the cylinder, replaces the pins with a new set, and reinstalls everything so only the new key will operate the lock. The hardware stays in place, which is why rekeying costs less than a full replacement. This works well when your locks are in good condition but you need to change who has key access.
At Key N Go, lock rekeying is one of our most common residential requests. We can also rekey multiple locks to a single key so you are not carrying a separate key for the front door, back door, and garage entry.
What Is Lock Replacement and When Does It Make Sense
Lock replacement means removing the existing hardware and installing a new lock in its place. This is the right move when a lock is worn, damaged, or functioning poorly. If a deadbolt sticks, a knob is loose, or a cylinder has visible wear, rekeying only keeps a compromised mechanism in service. Replacing the lock gives you fresh, reliable hardware and a new key at the same time.
Replacement also makes sense when you want to upgrade your home’s security. Older locks may offer limited resistance to picking or bumping, while newer Grade 1 deadbolts or reinforced cylinders provide stronger protection. If you are installing a smart lock with app-based access or a keypad entry, full replacement is required since smart lock hardware cannot reuse the old cylinder.
Rekey vs Replace: A Side-by-Side Comparison
The core question is whether the lock hardware is worth keeping. If your locks are solid and operating smoothly, rekeying restores access control without the added expense of new hardware. If the locks are worn, outdated, or you are upgrading to a new lock type, replacement is the better investment.
- Rekey: lock hardware is functional and access control is the only concern
- Rekey: you just moved into a new home and want to reset who holds a working key
- Replace: lock is damaged, worn, or no longer operates reliably
- Replace: lock was tampered with or damaged during a break-in attempt
Common Situations That Call for Rekeying
Moving into a new home is one of the most common reasons homeowners call us for a rekey. Even in a freshly sold home, previous owners may have given keys to contractors, neighbors, or property managers. Rekeying every exterior lock on move-in day closes that access gap immediately. Our post on lock rekeying after a move in Boynton Beach covers exactly why this step matters and how the process works from start to finish.
Other situations that point toward rekeying include:
- A lost or stolen house key
- A roommate or caretaker who no longer needs access
- Wanting all exterior doors to operate on one key
When a Break-In Attempt Changes the Equation
If your lock was damaged during a forced entry attempt, rekeying alone is not enough. Forced entry can bend the bolt, stress the cylinder, or damage the strike plate in ways that are not always visible. A lock that was compromised may appear to work normally but offer far less resistance going forward. In this situation, full replacement of the lock hardware and any damaged door hardware is the right call.
We provide lock installation and repair for residential doors throughout Palm Beach County, including situations where a door frame or strike plate also needs attention. A mobile technician will assess the door, recommend the right hardware, and complete the installation on-site.
What to Expect From Mobile Residential Locksmith Service
Key N Go is a 100% mobile locksmith service. A technician comes to your home rather than asking you to visit a shop. Before any work begins, we verify photo ID and proof of residency to protect your home and confirm we are serving the right person. The technician will examine the lock, explain whether rekeying or replacement is the better option, and confirm the price before any work starts.
Our residential locksmith service covers the full range of home lock needs. All work comes with a 30-day warranty on parts and labor under normal use, and the technician tests everything before leaving. Service is available Monday through Saturday from 7:00 AM to 7:00 PM. Hablamos Español.
Making the Right Call for Your Home
The decision between rekeying and replacing a residential door lock comes down to the condition of the existing hardware and the reason access control needs to change. Functional locks that just need a key change are ideal candidates for rekeying. Worn, damaged, or outdated hardware calls for replacement, especially if you are moving to a higher-security option or a smart lock system.
If you are weighing rekey vs replace residential door locks at your home in Boynton Beach or anywhere across Palm Beach County, Key N Go Mobile Locksmith can help. Contact us to schedule mobile service. We will come to your location, assess your locks, and give you a clear recommendation with upfront pricing before any work begins.