How Long Does Rekeying Take? A Clear Timeline

You have just moved into a home, had keys go missing, or changed staff at your business. The immediate question is practical: how long does rekeying take, and how soon can you know that old keys will no longer open your door? For most standard locks, rekeying is a relatively quick on-site service. The actual timing depends on the number and condition of the locks, the type of hardware involved, and whether the locksmith needs to address repairs at the same visit.

How Long Does Rekeying Take for Most Locks?

A single standard residential lock can often be rekeyed in about 15 to 30 minutes. This includes removing the lock cylinder, changing the internal pins so it works with a new key, reassembling the lock, and testing the new key from both sides of the door.

For a typical home with several exterior doors, plan on roughly one to two hours. A locksmith may be able to complete the work faster when the locks are in good condition and are the same brand or keyway. The job can take longer when there are separate deadbolts and knobs on every door, a detached garage, mailbox locks, shed locks, or different lock brands that cannot be placed on one matching key.

The service time is separate from travel time. During a scheduled appointment, a locksmith can provide an arrival window. In an urgent situation, 24/7 service is intended to get help to you as quickly as possible, but traffic, distance, weather, and the current call volume can affect arrival time.

What Can Make Rekeying Faster or Slower?

Rekeying is precise work, not simply cutting a different key. The locksmith must make sure the lock operates smoothly, the new key is properly cut, and every old key is rendered useless for that cylinder. A few common factors determine how long the visit will take.

The number of locks and keys

The more cylinders that need rekeying, the more time the job requires. A front-door deadbolt is straightforward. A home with front, rear, side, garage, basement, and gate locks requires more work, particularly if you want all of them to operate with one new key.

Businesses often have a larger scope. An office, retail store, medical facility, or industrial site may have exterior doors, employee entrances, storage rooms, cabinets, file rooms, and restricted areas. If the goal is to create a new key hierarchy or update a master key system, the planning and key cutting can take longer than a simple residential rekey.

The condition of the lock

A properly working lock is usually quick to rekey. A lock that is sticking, loose, corroded, damaged, or poorly aligned with the strike plate may need attention before it can be reliably returned to service. Rekeying a worn lock without correcting the underlying problem can leave you with a new key but the same frustrating operation.

In some cases, repair is the sensible choice. In others, replacement provides better value and stronger security. A qualified locksmith should explain the difference before proceeding, especially if the existing hardware is no longer dependable.

The lock type and brand

Many standard pin-tumbler deadbolts and door knobs are designed to be rekeyed. High-security cylinders, restricted key systems, commercial lever locks, and certain electronic or smart locks may require more time, specialized parts, or manufacturer-specific procedures.

Not every lock can be rekeyed. Some low-cost hardware uses cylinders that are not serviceable, while others may be too damaged or obsolete to justify working on. If a lock cannot be rekeyed, a replacement lock may be the faster and more secure solution.

Matching several locks to one key

Keying all exterior doors alike is convenient, but it is only possible when the locks are compatible. Different brands can use different keyways and cylinder designs. A locksmith may be able to install compatible cylinders or recommend replacement hardware so you can reduce the number of keys you carry.

That extra work adds time, but it can make everyday access easier and reduce confusion for family members, tenants, employees, or maintenance teams.

What Happens During a Rekeying Visit?

The process starts with identifying the locks you want secured and confirming who is authorized to make the change. For residential work, this may mean discussing every exterior entry point. For commercial properties, it can mean reviewing which doors should remain on separate keys and who should have access.

The locksmith removes the cylinder from each lock and changes the internal pin configuration to match a new key. The original key combination no longer operates the lock. New keys are cut, the hardware is reinstalled, and each lock is tested for smooth operation, proper latching, and correct key function.

A careful technician also looks for issues that affect security. A deadbolt that does not extend fully, a loose door handle, a weak strike plate, or a door that has shifted out of alignment can all reduce the protection you expect from a newly rekeyed lock. Addressing these concerns during the visit can prevent a return call later.

Rekeying Timelines by Situation

For a homeowner who has lost a key but still has access to the house, rekeying one or two exterior locks is often a short appointment. If every exterior lock needs to be changed after a move, allow more time so the locksmith can inspect and test each opening properly.

After a break-in or attempted break-in, the time can vary more. The immediate priority is securing the property. If the locks are intact, rekeying may be completed promptly. If a door frame, strike plate, deadbolt, or lock body has been damaged, repairs or replacement hardware may be needed before the opening is secure.

For landlords and property managers, turnover rekeying can be quick when the unit has standard hardware and the scope is clear. It becomes more involved when the property has common-area doors, mailbox keys, storage rooms, or master-keyed systems. Planning key control before a tenant change is often the best way to avoid delays.

For commercial properties, a simple employee key change may be handled during one service visit. Reworking a master key system, adding restricted keys, or changing access across multiple suites can require a more detailed assessment. The additional time protects against a poorly organized system that gives people more access than they need.

How to Help the Rekeying Service Go Smoothly

Before the locksmith arrives, decide which doors, locks, and areas need to be included. If possible, gather any keys you still have, including keys that operate side doors, garages, sheds, cabinets, or mailboxes. This helps identify which locks are currently keyed alike and which ones are separate.

Make sure the locksmith can access each door and that someone authorized to approve the work is available. At a business, it is useful to identify the person responsible for access decisions. If you want one key for several doors, mention that at the beginning so compatibility can be assessed before work starts.

If the reason for rekeying is a security concern, be direct about it. A lost key, former employee, tenant turnover, domestic situation, or suspected unauthorized copy may call for more than changing one lock. The right scope is the one that closes the actual access gap.

When Replacement Is Better Than Rekeying

Rekeying is an efficient way to change who has access without replacing functional locks. It is often the right choice after moving, losing keys, changing tenants, or ending an employee's access. However, it does not upgrade weak hardware or repair a failing lock.

Replacement may be the better option when locks are damaged, outdated, visibly worn, or not compatible with your desired key system. It is also worth considering when you want a higher-security cylinder, a reinforced deadbolt, restricted key control, or an access control solution for a commercial facility.

For homes and businesses throughout Durham Region, Durham Regional Locksmiths can assess the existing hardware, explain the practical options, and complete the work with security and reliability in mind. The fastest answer is not always the best answer if it leaves vulnerable hardware in place.

When access has changed, act before an old key becomes a problem. Rekeying is usually a manageable job, and a clear assessment of your locks can turn a stressful security concern into a controlled, properly secured property.