A previous tenant hands back a key. A contractor finishes a renovation. An employee leaves with no clear record of which keys were copied. In each case, lock rekeying can restore control over who has access without requiring you to replace every lock on the door.

For homeowners, property managers, and business owners across Vancouver and the Lower Mainland, rekeying is often a practical security decision after a change in occupancy, staffing, or key control. It is also one of the fastest ways to deal with uncertainty about existing keys when the lock hardware is still in good working condition.

What lock rekeying actually changes

A keyed lock contains a cylinder with small internal pins set to match the cuts on a particular key. During rekeying, a locksmith changes those pins so the old key no longer operates the lock. The door hardware stays in place, but a new key is issued.

That distinction matters. Rekeying is not the same as changing locks. Changing a lock means removing existing hardware and installing a new lock or lockset. Rekeying keeps the current lock body, handles, deadbolt, and door preparation where appropriate, while changing the key combination inside the cylinder.

If your lock is reliable, properly aligned, and suited to the level of security you need, rekeying can be the efficient option. If the lock is worn, damaged, outdated, or does not provide adequate protection, replacement may be the better long-term choice.

When should you rekey a lock?

The right time is usually when keys may be unaccounted for, not only when one has been visibly lost. A key can be copied without your knowledge, passed between occupants, or left in the hands of a former worker. Waiting for a problem can turn a straightforward service call into an urgent break-in or lockout situation.

After moving into a new home

New homeowners should strongly consider rekeying exterior doors soon after possession. Even if the seller provides every key they have, you cannot know whether neighbours, tradespeople, relatives, cleaners, or past occupants have copies. Rekeying lets you start with a fresh set of keys while keeping compatible existing hardware.

For renters, the responsibility can depend on the tenancy agreement and the landlord's procedures. Property owners should maintain clear key control between tenancies and ensure any rekeying work complies with applicable BC tenancy requirements. Tenants should not alter locks without permission where approval is required.

Between tenants or after a key turnover

For landlords and property managers, lock rekeying between tenants is a sensible part of turnover planning. It helps protect the incoming resident, reduces confusion over old keys, and creates a cleaner key record for the building.

Multi-unit properties can benefit from a planned approach rather than handling every suite differently. A locksmith can assess whether cylinders can be keyed alike, keyed differently, or arranged under a controlled master-key system. The best setup depends on who needs access and how much separation is needed between units, storage rooms, offices, and common areas.

When employees, contractors, or caregivers leave

Businesses regularly issue keys to staff, cleaners, delivery teams, maintenance providers, and contractors. When responsibilities change or a staff member leaves, rekeying exterior doors, stock rooms, offices, and restricted areas can close an avoidable security gap.

This is especially relevant for retail stores, clinics, offices, warehouses, and strata-managed spaces where keys may have changed hands over years. If no one can confidently say how many copies exist, it is time to review the locks and access process.

At home, the same principle applies after a caregiver, housekeeper, roommate, renovation crew, or service provider no longer needs access. Rekeying is not an accusation against anyone. It is basic key management.

After keys are lost or stolen

A lost house key does not always mean an immediate emergency, particularly if it cannot be connected to your address. But if keys were lost with identification, a garage remote, an access fob, or anything that identifies the property, act quickly. Rekeying the affected locks removes the risk that someone who finds the key can enter.

If you are locked out, a 24/7 locksmith can assess the situation and help restore entry. Once inside, you can decide whether rekeying, repair, or replacement is necessary based on the condition of the hardware and the circumstances of the lost key.

Rekeying versus replacing locks

Cost is one reason people choose to rekey, but it should not be the only one. A quality deadbolt that works smoothly and meets your security needs may be worth retaining. Replacing it simply because a key is missing can create unnecessary expense.

Replacement makes more sense when the lock is sticking, corroded, loose, damaged after a break-in, or difficult to operate. It may also be appropriate if you want to upgrade from basic hardware to a higher-security deadbolt, a restricted-key system, electronic access control, or a smart lock.

Door condition also matters. A lock can be perfectly functional but still provide weak security if the strike plate is loose, the frame is damaged, or the deadbolt does not extend fully into the jamb. A proper locksmith assessment looks beyond the key cylinder. Good security depends on the lock, door, frame, hinges, and installation working together.

Can all locks be rekeyed?

Many standard residential and commercial keyed locks can be rekeyed, but not every lock can. Some low-cost locks are not designed for servicing. Others may be too worn or internally damaged to justify rekeying. High-security cylinders, mailbox locks, specialty cabinet locks, and electronic locks each have their own requirements.

The keyway is another consideration. If you want one key to operate several doors, the locks generally need to be compatible or fitted with compatible cylinders. A locksmith can tell you whether your front door, back door, garage entry, gate, and office doors can be keyed alike.

One-key convenience is useful, but it has a trade-off. If that single key is lost, every lock on that key ring may need attention. For some properties, separate keys for sensitive rooms or secondary entrances provide better control.

What to expect from a professional rekeying service

A professional locksmith will first confirm that you are authorized to make changes to the property. They will inspect the lock condition, identify compatible cylinders, and discuss how you want the doors keyed.

For a typical rekey, the locksmith removes the cylinder, resets the internal pins, tests the new key, and checks that the door locks and unlocks properly. They should also look for alignment issues that can cause a deadbolt or latch to bind. A key that works only when the door is pulled or pushed is not a small inconvenience - it is a sign the door or strike may need adjustment.

Before the appointment, count the doors, gates, mailboxes, storage areas, and interior rooms involved. Gather any existing keys and note who needs access. For businesses, consider whether managers, staff, vendors, and emergency contacts require different levels of access. This helps avoid repeat visits and makes it easier to create a clear key plan.

Keep control after the locks are rekeyed

Rekeying works best when it is paired with better key habits. Keep a simple record of who receives keys, retrieve keys when a tenant or employee leaves, and avoid unlabelled spare keys hidden outside. If you use a lockbox, make sure its code is changed when access changes.

For commercial properties, consider a restricted key system or a master-key arrangement where appropriate. These systems can make key duplication more controlled and allow different access levels, but they require careful planning. A master key can be convenient for management while creating greater risk if it is lost, so it should be issued sparingly.

If your Vancouver-area property needs new keys after a move, staff change, lost key, or tenant turnover, NOW LOCKSMITH can assess the hardware and provide 24/7 locksmith support. The goal is simple: the right people can get in, and old keys cannot.