The most common locksmith question we get is some version of: "I just moved in / lost a key / had someone leave who had a key — do I need new locks?" The answer is almost always no — but most people assume replacement is the only option. Understanding rekeying helps you make the right (and usually much cheaper) call.
What Rekeying Actually Is
A lock cylinder contains a series of spring-loaded pins of varying heights. A key works because its cuts align these pins exactly, allowing the cylinder to rotate. Rekeying means removing the cylinder, replacing the pin set with a different combination of heights, and cutting a new key to match the new combination. The lock hardware stays exactly the same — only the internal pin configuration changes.
The result: every key that previously worked on that lock no longer works. The security level is identical to having a new lock — the cylinder simply recognizes a different key now.
Rekeying Cost vs. Replacement Cost
In Tampa Bay in 2026:
- Rekeying: $25–$35 per cylinder (service call + labor)
- Lock replacement (standard deadbolt): $150–$300 per lock installed (hardware + labor)
For a typical 3-exterior-door Tampa home, a full rekey runs $120–$150. Full lock replacement on the same home with quality hardware runs $450–$900. For the most common use cases (moving in, lost key, tenant change), rekeying delivers identical security at a fraction of the cost.
When to Rekey
✅ Rekey in These Situations
- Moving into a new home (previous owners' keys won't work after rekeying)
- Lost or stolen key with no evidence of break-in
- Tenant, roommate, contractor, or housekeeper departure
- You want all exterior locks to use the same key (keyed alike service)
- Security concern without any evidence of compromise
When to Replace
🔄 Replace the Lock in These Situations
- The lock is old, worn, or hard to operate — rekeying doesn't fix mechanical issues
- You want to upgrade security grade (e.g., Grade 3 builder lock → Grade 1 Schlage B60N)
- Visible damage from an attempted break-in (bent bolt, damaged cylinder)
- You're upgrading to a smart lock (key + app combination access)
- The lock brand can't be rekeyed to match your preferred key (limited keyway compatibility)
If you're not sure which situation you're in, call us. We'll tell you honestly over the phone whether rekeying or replacement makes more sense — and why.