Rekeying Locks in a New Home: What to Do First

Start With Key Control

The keys supplied with a newly bought or leased Central Valley home may not be the only copies in circulation. Former occupants, relatives, cleaners, contractors, or property staff could still have one.

This guide explains why rekeying locks in a new home should happen before you unpack, when replacement makes more sense, which entrances people overlook, and how to verify the finished work. Rekeying restores key control without automatically replacing sound hardware.

Why Rekeying Should Precede Unpacking

Before a box crosses the threshold, establish which keys can operate the property. The keys handed over at closing or lease signing may have been duplicated, and temporary copies issued to contractors or service providers may never have been returned.

At Sisco’s Locksmith Inc., we recommend treating exterior rekeying as an early move-in task. We adjust the existing cylinders to operate with a new key, so the previous key pattern no longer works in the rekeyed doors.

An alarm or door chain may support a wider security plan, but neither cancels a working mechanical key. Complete the rekey before moving valuable belongings into the home or giving movers and other providers access.

Rekeying Locks in a New Home vs. Replacement

A working lock does not always need to be discarded. If its cylinder, latch, deadbolt, and exterior trim are sound, rekeying changes the internal key combination while retaining the hardware. As the American Locksets rekeying guide shows, the exterior trim, latch, strike plate, and lock chassis can remain in place during a standard rekey.

We position rekeying as the most cost-effective way to prevent former owners or tenants from retaining access. It avoids buying complete locksets when the existing ones work correctly. Where the keyways are compatible, several locks may also be set to use the same new key.

Replacement is the better choice when a lock is worn, corroded, damaged, unreliable, or misaligned beyond adjustment. It may also be necessary when different brands have incompatible keyways or you want a keypad or connected access. Our guide to signs that home locks need an upgrade can help you assess the hardware already installed.

When replacement is warranted, Sisco’s installs Grade 3 commercial-strength hardware for durable resistance against forced entry. We assess each opening instead of assuming every lock needs the same treatment, then provide transparent pricing before technical work begins, with no hidden fees or surprise costs.

Overlooked Perimeter Points to Secure

The front door is only one part of the perimeter. Walk around the property and list every opening that leads into the home or protects stored tools and equipment. Check whether each lock has a key, operates smoothly, and matches any other keys you received.

• Back and side doors, including keyed knobs and separate deadbolts
• The pedestrian door between an attached garage and the living area
• Exterior garage service doors and detached garage doors
• Pedestrian and driveway gates, breezeways, sheds, workshops, and pool houses
• Sliding doors and other entrances with damaged or missing secondary security

An attached garage deserves special attention. Rekey the mechanical lock on the connecting door where appropriate without altering its fire-rated function. Following the opener manufacturer’s instructions, clear its stored remote connections, reprogram the remotes you are keeping, reset the exterior keypad, and remove former in-vehicle systems.

Detached structures may contain ladders or tools that could assist entry into the main home. Their cylinders can often be rekeyed when the hardware is sound. Loose hasps, exposed padlocks, weak strike plates, and damaged gate latches may require repair or replacement instead.

Move-In Verification: What to Have Ready

California locksmith work orders must document who requested the service. Under California Business and Professions Code § 6980.55, published by Justia, the required details include the customer’s legal name, address, date of birth, telephone number, and driver’s license or state identification number.

If you purchased the home, have your valid photo identification and a document connecting you to the property ready. Suitable records include a signed closing disclosure, settlement statement, stamped or recorded deed, or title insurance commitment showing your name and the property address.

If you are leasing, prepare your photo identification, current lease showing your name, address, and occupancy dates, and written authorization from the owner or property manager. Confirm the required paperwork when scheduling so a missing document does not delay the work.

Count all keyed openings before the appointment. Note locks that stick, doors that must be pushed or lifted to latch, and keys that work in more than one location. If you want selected doors keyed alike, raise that request during the assessment so compatibility can be checked.

Final Verification: Test Every New Key

Test freshly cut keys before considering the job complete. Begin with each door open: insert the new key, turn it in both directions, operate the latch or deadbolt, and withdraw the key. The movement should be smooth without forcing the key.

Then close and lock the door. The deadbolt should extend fully without requiring you to push, pull, or lift the door. Resistance that appears only when the door is closed may indicate strike alignment rather than a cylinder problem, so identify it while the technician is present.

Test a previous key against each rekeyed cylinder to confirm that it no longer turns. This Old House includes this old-key test as the final confirmation that the former key pattern has been disabled.

Sisco’s mandatory final verification puts the new keys in your hands. Before we depart, you personally test every newly cut key in all locks included in the work, confirming which key serves each opening and allowing any concern to be addressed immediately.

Schedule Mobile Rekeying Before Move-In

Sisco’s Locksmith Inc. brings licensed mobile residential locksmith service backed by 3+ years of Central Valley experience to customers across Tulare and Kings County. Review our residential locksmith services, then schedule mobile rekeying, call (559) 909-8286, or email siscoslocksmith@gmail.com before moving your belongings into the home.