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Should You Rekey or Replace Your Locks After Moving In?

Moving into a new home on Cliff Road, near Wellesley Square, or anywhere else in town comes with a long to-do list — and buried near the bottom of most people's lists is a question that really should be near the top: who else has a key to your front door? Previous owners, former tenants, real estate agents, contractors, and neighbors with a spare all represent unknown access points. The good news is that securing your home does not have to mean tearing out every lock. Understanding the difference between rekeying and replacing — and knowing which one fits your situation — can save you time, keep your home genuinely secure, and help you make a confident decision on day one.

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Jemmy Locksmith Service Team

Local locksmith team

May 11, 2026 3 min read

Should You Rekey or Replace Your Locks After Moving In? — Jemmy Locksmith

Moving into a new home on Cliff Road, near Wellesley Square, or anywhere else in town comes with a long to-do list — and buried near the bottom of most people's lists is a question that really should be near the top: who else has a key to your front door? Previous owners, former tenants, real estate agents, contractors, and neighbors with a spare all represent unknown access points. The good news is that securing your home does not have to mean tearing out every lock. Understanding the difference between rekeying and replacing — and knowing which one fits your situation — can save you time, keep your home genuinely secure, and help you make a confident decision on day one.

This guide is written specifically for new Wellesley homeowners who want straight answers, not a sales pitch. We will walk through how rekeying works, when full lock replacement makes more sense, what to expect with modern mortise locks and smart locks, and how to spot the situations where a professional needs to step in. Jemmy Locksmith operates 24/7 across the Wellesley area, so whether you are moving in on a Sunday evening or have a last-minute concern during closing week, our team is ready to help.

Frequently asked questions

How do you rekey a lock, and how long does it take?+

Rekeying a lock involves removing the cylinder from the lock body, extracting the existing pins, and installing a new set of pins matched to a new key. The old key becomes permanently useless. For a standard deadbolt or door knob lock in good condition, a trained locksmith can complete the process in well under thirty minutes per cylinder. A mortise lock cylinder takes a bit longer due to its more involved disassembly but is still a straightforward job for an experienced technician.

Can you rekey a smart lock without the original key?+

In many cases, yes. If the smart lock includes a conventional pin-tumbler cylinder as a backup entry method, a skilled locksmith can often remove and rekey that cylinder using professional tools even without the original key. The specific approach depends on the lock model — some cylinders are more accessible than others without the original key present. For Yale smart locks and similar brands common in Wellesley homes, we assess the model on-site and recommend the least invasive solution before doing any work.

What determines the call-out fee for a locksmith visit?+

There is no single standard call-out fee across the industry. At Jemmy Locksmith, the factors that shape your quote include the type of lock being serviced (a single door knob lock versus a complex mortise lock or multi-point system), the time of day and whether it is an emergency call or a scheduled appointment, travel distance within the Wellesley area, and the specific parts needed. We confirm the exact price before any work begins — there are no adjustments at the door after we arrive.

Should I rekey or fully replace the locks in my new Wellesley home?+

Rekeying is the right choice when the existing locks are in solid mechanical condition and the only concern is previous keyholders. It is faster, involves less hardware, and addresses the security gap directly. Full replacement makes more sense when the locks are worn, low-grade, or damaged — or when you want to upgrade to higher-security hardware like a Grade 1 deadbolt or a new mortise lock. If your home has older mortise lock hardware that is functioning well, rekeying is almost always the smarter path. When in doubt, a quick on-site assessment from our team will give you a clear answer before you spend anything.

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