--- title: Rekey or Replace? How to Decide Without Overspending description: Not sure whether to rekey or replace your locks? [main_name] breaks down the real cost difference and when each option actually makes sense in [sa_city]. url: https://sundiallocksmith.com/rekey-or-replace-how-to-decide-without-overspending date_modified: 2026-08-30 author: language: en_US --- I’m Josh, and after a decade as a locksmith across Maricopa County, the question I hear most often isn’t “can you get here fast?” — it’s “do I actually need new locks, or can you just rekey them?” That’s a smart question. The answer saves most people real money, and getting it wrong costs more than it should. If you’re in — maybe near Mill Avenue, south of the ASU campus, or out by Baseline Road — here’s exactly how to think through it with in mind. ## What Rekeying Actually Does Rekeying doesn’t touch your hardware. A technician disassembles the lock cylinder, swaps out the internal pins, and cuts you a new key. The old key stops working — permanently. Your deadbolt, your handle set, everything stays exactly where it is. The job typically runs **$20–$50 per lock** in labor, and it’s genuinely the right call the majority of the time. It’s the right move when: - A tenant moved out and you’re not 100% sure how many key copies exist - A relationship ended and someone still has access — if that’s your situation, read our deeper guide on [rekeying after a divorce or separation](https://sundiallocksmith.com/rekeying-after-a-divorce-or-separation-why-its-one-of-the-first-things-you-should-do/) - You moved into a home and have no idea who had keys before you - Your locks are in solid shape — no rust, smooth operation, good brand - You want all your locks on one key (yes, we can do that — see [rekeying to match a key you already carry](https://sundiallocksmith.com/can-you-rekey-a-lock-to-match-an-existing-key-you-already-carry/)) > Rekeying is like a reset button for access — same lock, completely new control. Most homeowners don’t need more than that. ## When a Full Lock Replacement Service Is Worth It ![A hand holding a BMW smart key fob next to a Sundial Locksmith business card in front of a white BMW SUV.](https://sundiallocksmith.com/wp-content/uploads/2026/06/Sundial-Locksmith0020-1024x683.jpg "Rekey or Replace? How to Decide Without Overspending") Sometimes the hardware itself is the problem. A full makes sense when the lock is worn, damaged, or simply not up to the job anymore. Budget **$100–$300+ per lock** depending on the grade and brand — that includes the hardware and labor. Replace the lock when: - The lock is visibly damaged — forced entry attempt, storm wear, or years of Arizona heat warping the frame - You’re upgrading to a smart or keypad lock (if you’re curious about that direction, our guide on [keyless door locks](https://sundiallocksmith.com/the-evolution-of-security-embracing-keyless-door-locks/) is worth a read) - The hardware is a cheap builder-grade lock that a determined person could compromise - The lock brand is discontinued and replacement parts aren’t available - You want a higher security grade — Grade 1 ANSI vs. the Grade 3 that ships in most new construction If your steel entry door has worn hardware, we also cover what actually holds up in our post on [the best locks for a steel entry door](https://sundiallocksmith.com/best-locks-for-a-steel-entry-door-what-actually-holds-up/) — useful reading before you invest in new hardware. ## Rekey vs Replace Locks: The Honest Cost Breakdown ![A hand holding a modern smart car key fob next to a Sundial Locksmith business card in front of a parked vehicle.](https://sundiallocksmith.com/wp-content/uploads/2026/06/Sundial-Locksmith0011-768x1024.jpeg "Rekey or Replace? How to Decide Without Overspending") Here’s the practical split most homeowners land on after we talk it through: - **Rekeying 3 locks:** roughly $80–$150 total, done in under an hour - **Replacing 3 mid-grade locks:** roughly $350–$700+ depending on hardware chosen - **Replacing to premium Grade 1 hardware:** $600–$1,000+ — but you’re getting a genuinely different level of protection The difference is real. If your locks are solid — Schlage, Kwikset, Medeco — rekeying almost always wins on value. If they’re the flimsy brass things that came with a 2005 tract home near Kyrene Road, a replacement conversation is worth having. ## Why Who Does the Work Matters as Much as What Gets Done This is where I get direct: a rekeyed lock is only as good as the technician who rekeyed it. Pins set incorrectly, cylinders not fully seated, mismatched keyways — these are real failure points that show up when a solo operator rushes the job or works without the right tools. has operated since 2009, runs a real storefront, and dispatches trained technicians with proper equipment — not a guy with a Google Voice number who learned rekeying from a YouTube video. If you’re in or anywhere across and , our team covers the full Maricopa County area. You can reach our [Scottsdale location](https://sundiallocksmith.com/service-area/scottsdale-az/) or our [Gilbert service area](https://sundiallocksmith.com/service-area/gilbert-az/) — same team, same standards either way. The short version: rekey when your hardware is good and access control is the issue. Replace when the hardware itself is the weak point. And if you’re not sure — that’s exactly what we’re here to figure out with you, at no pressure. [Call at — Get a Straight Answer Today](tel:(480) 525-7778)