Last updated: August 3, 2026

The short answerLearn when rekeying or lock replacement may make sense for your home or business.
By Etobicoke Locksmith Team
Published April 24, 2026 · Updated August 4, 2026
The Question: “What’s the actual difference between rekeying and lock replacement – and which one do I actually need?”

Rekeying vs lock replacement in Etobicoke comes down to one core decision: do you keep the lock hardware and change the internal pins, or replace the lock hardware? The appropriate option depends on the condition of the lock and your access needs.

Understanding the Difference Between Rekeying and Lock Replacement in Etobicoke

Key Takeaways
Rekeying changes the internal pins of an existing lock and may suit sound hardware when keys are lost or access needs to change. Lock replacement may be appropriate when hardware is damaged, worn, or being upgraded. Rekeying does not repair a broken mechanism. A professional locksmith can assess the lock and discuss available options.

Table of Contents

The Short Answer

Rekeying and lock replacement in Etobicoke serve different problems. Rekeying may suit a lock that is functioning properly when you need new keys or want to change access. Replacement may be appropriate for locks that are physically damaged, worn, or outdated.

The confusion happens because both solve access-control problems, but they don’t solve the same problem. A homeowner in Long Branch with a lost key doesn’t need a new lock – a rekey fixes it. A property manager at a Mississauga commercial space after staff turnover might need both: rekey the main office lock for the incoming team, but replace the back-door cylinder because it’s been picking up rust from salt air and the core is sticking.

“The condition of the lock mechanism helps guide the decision. If the mechanism is damaged or does not operate properly, consider replacement. If the hardware is sound, rekeying may be an option.”Etobicoke Locksmith

The Full Answer: When to Rekey and When to Replace

Rekeying: What It Actually Does

Rekeying removes the cylinder from your existing lock body and alters the internal pins so that your old keys no longer work – and a new key pattern works instead. The lock itself stays in the door. The hardware, the strike plate, the deadbolt mechanism – all of it stays. You’re just changing which key opens it.

This works brilliantly in three scenarios. First: you’ve lost your keys or a key was stolen, and you want to be sure no one else has a copy. Second: a tenant moved out or an employee was fired, and they still have a key – rekey cuts them off immediately. Third: you want to consolidate keys across multiple properties, so one master key opens several doors.

Rekeying is priced per job. The work involves changing the lock so new keys can be used.

Why This Matters
Rekeying only works on a sound lock. If the cylinder is stuck, the core rattles, or the key binds in the keyway, the lock needs replacing. You cannot repin a broken mechanism.

Lock Replacement: When Hardware Is the Problem

Lock replacement involves changing existing lock hardware. This may be considered when existing hardware is damaged, worn, or no longer meets your needs.

Clients in Lakeshore and Mimico, especially those in waterfront-adjacent buildings, see corrosion from salt air. A lock that was fine two winters ago gets stiff, the cylinder won’t turn smoothly, or the bolt doesn’t seat properly anymore. That lock is a replacement candidate.

Lock replacement and smart lock installation are priced per job. You get the exact price before any work starts.

Lock hardware options can vary. A professional locksmith can help you choose hardware that suits your door and security needs.

The Scenario: Condo Turnover in Islington Village

A resident in an Islington Village condo unit lost both keys to the front door. The building has a mandatory restricted-key system, meaning you can’t just cut a new key at a hardware store – the cylinder is keyed differently, and only a registered locksmith can generate new keys. The lock itself was fine: no damage, no wear, no corrosion. The mechanism turned smoothly. The bolt seated cleanly. The only problem was the lost keys.

Rekeying may be the appropriate option when existing lock hardware is functioning properly and access needs to change.

The Scenario: Restaurant Turnover in Lakeshore

A restaurant on Lakeshore Avenue near New Toronto had a closing shift with staff turnover. The new management team needed to revoke access for departing employees and set up a new key control system. The existing locks were original to the building – about 15 years old. Six cylinder locks needed work: the main office door, the walk-in cooler, the back entrance, the stockroom, the safe, and the manager’s office.

Commercial locksmith services are priced per job. You get the exact price before any work starts.

Two of those six locks showed corrosion and stiffness – likely from humidity in the walk-in area and the back entrance. Those two cylinders were replaced (not rekeyed) because the mechanism was unreliable. The other four, despite their age, operated smoothly and were rekeyed into the new master-key pattern.

Rekeying vs. Replacement Cost: A Pricing Breakdown

Service Cost Range (Etobicoke) Typical Duration
Standard rekey Priced per job Timing confirmed before work starts
Lock replacement Priced per job Timing confirmed before work starts
Lock hardware options Priced per job Timing confirmed before work starts
Smart lock installation Priced per job Timing confirmed before work starts
Commercial locksmith services Priced per job Timing confirmed before work starts

Whether to rekey or replace a lock depends on the condition of the hardware and your access needs. A professional locksmith can assess the lock before work begins.

The Field Mistake: Moving Into a New Place Without Rekeying

Here’s a pattern we see constantly: a new tenant or owner moves into a Mississauga condo, a Mimico apartment, or a house in The Queensway, and they never rekey the locks. The previous tenant’s keys still work. The landlord’s master key still works. The property manager’s key still works. And the same cylinder rotates with every turnover – meaning dozens of old keys are floating around town, each one opening that front door.

Changing access to a lock can be an important security consideration. Rekeying is priced per job.

The rekeying-vs-replacement decision shifts in a few specific situations. Here’s where the simple rule breaks down.

High-Security Upgrades: When Replacement Is the Only Option

If your Etobicoke home or Lakeshore business currently has a standard Kwikset or Master Lock cylinder, and you want to upgrade to a high-security lock like Mul-T-Lock or Medeco, you cannot simply rekey the old lock. Those brands require their own specialized cylinders and keyways. You’re replacing the hardware, not just the pins.

Lock hardware upgrades are priced per job. A professional locksmith can discuss options for your doors and security needs.

Smart Lock Installation: Replacement, Not Rekeying

Smart locks like Schlage Encode, Yale Assure, or August are entirely different hardware. They cannot be installed by rekeying – the old mechanical lock must come out completely and the new smart lock must be installed in its place. If you want to add keyless entry, app-based access, or temporary guest codes to your Islington Village unit or Mississauga condo, you’re replacing the lock, not rekeying it.

Smart lock installation is priced per job. You get the exact price before any work starts.

The Corrosion Problem: Salt Air in Waterfront Areas

Waterfront neighborhoods like Lakeshore and Long Branch are beautiful, but salt air accelerates lock corrosion. A lock that works fine inland can develop pitting, stiffness, and internal rust damage within a few years near the lake. Rekeying a corroded lock is a waste of time – the mechanism is compromised, and the new pins will bind just like the old ones.

If you live near the water and your lock is getting stiff or the key is binding, replacement is the right call. Your locksmith will recommend it during the on-site assessment. This is one of the honest moments that costs more upfront but prevents a worse problem (a lock that simply won’t open) down the line.

The Dealership vs. Mobile Locksmith Trap (Car Keys)

For lost car keys, a mobile locksmith can help with replacement car key services.

A mobile locksmith can provide car key services at your location. You get the exact price before any work starts.

Common Mistake: Calling a dealership for a car key replacement typically costs 2-3× more than a mobile locksmith for the exact same key. The dealership does not have a security advantage here – they’re simply more expensive.

Frequently Asked Questions

Can I rekey a lock that’s stuck or stiff?

No. A stuck or stiff lock indicates internal corrosion, wear, or misalignment. Rekeying only changes the pins – it does not fix a broken mechanism. If the cylinder is damaged, you need lock replacement, not rekeying. Rekeying a bad lock is money wasted.

How long does a rekey take, and can it be done the same day?

A standard single-cylinder rekey takes 30 to 45 minutes on site. Yes, it can be done the same day. Call before 2 p.m. in Etobicoke, Lakeshore, or Mississauga, and most jobs can be completed by evening. Master-key systems or multiple cylinders take longer – 2 to 4 hours – depending on how many locks you need rekeyed.

Is it cheaper to rekey all locks or replace just the broken ones?

It depends on your situation. If you are changing access control, rekeying similar locks can help maintain consistency. If locks are broken, replacement may be appropriate. A professional locksmith can help determine whether rekeying or replacement fits your needs.

What’s the difference between Schlage and Mul-T-Lock for home security?

Lock options can be discussed with a professional locksmith. You get the exact price before any work starts.

Need Help Deciding Between Rekeying and Replacement?

We’ll assess your locks on site and recommend the right solution – rekey, replace, or upgrade. Available 24/7 across Etobicoke, Lakeshore, and Mississauga.

Get Your Free Lock Assessment →

Sources

  1. Etobicoke Locksmith real pricing data and field service records (rekeying and lock replacement costs, standard & high-security cylinders)
  2. ASSA Abloy (parent company of Schlage) – lock manufacturing and security standards
  3. Mul-T-Lock – high-security cylinder design and pick-resistance specifications
  4. Etobicoke Locksmith case studies: Islington Village condo rekey (45 minutes), Lakeshore restaurant master-key system, Mimico vehicle key programming (40 minutes)