Home Lock Rekeying
When you move into a new home in Mississauga — whether it's a detached house near Port Credit, a townhouse in Erin Mills, or a condo unit along Hurontario Street — you rarely know how many copies of your door keys are floating around. Previous owners, contractors, real estate agents, and property managers may all have had access. Home lock rekeying is the fastest, most cost-effective way to take back full control of who can walk through your front door, without replacing every lock cylinder on the property.
Open 24 hours, 7 days a week · Licensed, bonded & insured

At Quantum Guard Mississauga Security, our trained and insured technicians arrive at your door in a fully equipped mobile unit, ready to rekey every exterior lock on your home to a single new key — right there on your driveway or doorstep. No shop visit needed, no waiting days for an appointment. We operate 24/7, so whether you need service on a Tuesday afternoon or a Saturday at midnight, a real technician is ready to roll.
What we do
Available 24/7
Day, night, weekends and holidays — a real local locksmith answers and rolls a fully-stocked van.
Fast local response
Based in Mississauga, we reach the Mississauga area in well under an hour.
Insured & background-checked
Vetted technicians, up-front pricing, and no surprise add-ons when we arrive.
Damage-free entry
We pick and bypass locks the right way, so most lockouts are solved without drilling anything.
What Home Lock Rekeying Actually Involves
Rekeying a lock means a technician disassembles the cylinder and replaces the internal pin tumblers — the small spring-loaded pins that determine which key operates the lock. The existing hardware stays exactly where it is on your door; only the internal configuration changes. The result is that every old key is permanently rendered useless, and a brand-new key pattern is created. Because the lock body, deadbolt, and strike plate remain in place, the job is fast and completely damage-free to your door frame and finish.
For most Mississauga homes, the exterior lock inventory includes a front deadbolt, a door knob lock or lever set on the same door, a rear patio or sliding door lock, and sometimes a side entrance or garage entry door. Our technicians rekey all of these to a single key in one visit — so you're not juggling four different keys for four different doors. We work with all common residential lock brands including Schlage and Kwikset, as well as higher-security cylinders. If your home has a mortise lock — a rectangular lock body set into a pocket in the door, common in older Mississauga homes and heritage properties in areas like Lakeview or the mature neighbourhoods around Cooksville — our team handles mortise lock rekeying just as routinely as standard cylindrical locks.
Home Lock Rekeying vs. Full Lock Replacement: Which Do You Need?
A full home lock change is the right call when hardware is visibly damaged, worn, or outdated — for example, if your deadbolt has a loose cylinder, your door knob lock spins freely, or you're upgrading to a higher-security grade. But in the majority of situations — a recent home purchase, a tenant move-out, a lost key, or a relationship change — the existing locks are perfectly functional and structurally sound. In those cases, rekeying delivers the same security outcome as replacement at a fraction of the time and material cost, because no new hardware is being installed.
If you're unsure which service your home actually needs, our technicians will assess every exterior lock during the visit and give you an honest recommendation. We will never recommend a full lock change when rekeying is sufficient. Before any work begins, we confirm an exact up-front price — the final quote reflects factors like the number and type of locks on your property, the lock brand and keyway, the time of day, travel distance to your Mississauga address, and whether any parts such as new pins or specialty keyways are required. There are no hidden fees added after the job.
Emergency Locksmith Response and Home Lockout Situations
Sometimes a rekeying call starts as a home lockout. You've returned home from Square One Shopping Centre or a late shift on the QEW corridor, and your key simply won't turn — or you've discovered your key is missing entirely. Our emergency locksmith team responds around the clock to home lockout situations across Mississauga. We do not use destructive entry methods when they can be avoided; our trained technicians work damage-free wherever the lock condition and door setup allow. Once we have you back inside, we can immediately assess whether a rekey or a full lock change is the right next step, and complete that service in the same visit.
Ownership verification is a standard part of every home lockout service call — our technicians will ask you to confirm your identity and your right to access the property before any work is performed. This is not a bureaucratic hurdle; it is a security practice that protects every homeowner in the communities we serve. If you have a secondary entrance, a spare key held by a neighbour, or a property manager who can confirm access, those are always worth checking first. When those options aren't available, call (289) 206-5983 — we answer 24/7 and can typically have a technician en route to your Mississauga address within the hour.
Our Full Range of Residential and Commercial Lock Services
Quantum Guard Mississauga Security is a mobile locksmith operation, meaning our skilled technicians come to you — no need to remove hardware and transport it anywhere. Beyond home lock rekeying, our service list covers the full spectrum of residential and commercial locksmith needs across Mississauga and the surrounding area. Below is a representative list of the specific services our team provides on a regular basis: 1. Residential deadbolt rekeying (single or whole-home) 2. Door knob lock rekeying and replacement 3. Mortise lock rekeying, repair, and full replacement 4. Lever-handle lock rekeying for residential doors 5. Master key system design and setup for multi-unit residential properties 6. High-security cylinder upgrades (Schlage B-series, Kwikset SmartKey) 7. Smart lock installation and programming (keypad, Bluetooth, Z-Wave) 8. Garage entry door lock rekeying 9. Sliding patio door lock repair and replacement 10. Window lock installation and repair 11. Home lockout service — damage-free entry 12. Lock re-pinning after key loss or tenant change 13. Door frame and strike plate reinforcement 14. Commercial locksmith services — office and retail rekeying 15. Commercial mortise lock installation and repair 16. Panic bar and exit device installation 17. Access control system installation for small businesses 18. Mailbox lock replacement 19. Storage unit and padlock rekeying 20. Cabinet and interior door lock installation 21. Safe lock service — combination changes and lockouts 22. Lock replacement after break-in damage 23. Security consultation and on-site lock audit 24. Duplicate key cutting on-site 25. Broken key extraction (door, deadbolt, and ignition) 26. Multi-point locking system service for steel and fibreglass exterior doors 27. Restricted keyway systems to prevent unauthorized key duplication For commercial locksmith clients — property managers, small business owners, strata corporations — we also handle scheduled rekeying programs after staff turnover, ensuring access control stays current without disrupting operations.
Why Mississauga Homeowners Choose Quantum Guard for Lock Rekeying
Mississauga is one of the most densely populated cities in Canada, and the diversity of its housing stock reflects that — from pre-war brick bungalows in Port Credit with original mortise lock hardware to brand-new builds in Churchill Meadows with Schlage keypad deadbolts. Our technicians are experienced across this full range of hardware, which means the tech who arrives at your door isn't guessing at your lock type. Every mobile unit carries a comprehensive pin kit, a broad keyway inventory, and the tools to complete the job in a single visit.
Being insured matters in this industry. If anything goes wrong during a service call — a door finish is scuffed, a part is damaged during disassembly — you are protected. Our technicians are trained professionals who work carefully and methodically, but backing that up with insurance is something we consider a baseline obligation to our customers, not an optional extra. When you call (289) 206-5983, you're not reaching an answering service — you're talking to someone who can dispatch a qualified technician to your Mississauga address at any hour, any day of the year.
Frequently asked questions
Answers to what our customers ask most. Still unsure? Just call.
How long does it take to rekey all the exterior locks on a typical Mississauga home?+
For a standard single-family home with three to five exterior locks — a front deadbolt, a door knob lock on the same door, a rear entry, and a garage door — the full rekeying job typically takes between 45 minutes and 90 minutes. Homes with a mortise lock, multiple entry points, or higher-security cylinders may take a little longer. Our technician will give you a realistic time estimate when they assess the doors.
Does rekeying actually make my home more secure, or is it just a key change?+
It is genuinely a security upgrade in the right circumstances. After rekeying, every previously cut key — including copies you didn't know existed — is permanently useless. No one with an old key can enter. If you've recently purchased a home, ended a tenancy, or experienced a key loss, rekeying eliminates an access risk that a simple lock replacement does not address any more effectively. If your hardware is also old or low-grade, our technician can advise on whether a cylinder upgrade or full lock change would provide additional benefit.
What's the difference between a mortise lock and a standard deadbolt, and does it cost more to rekey?+
A mortise lock is a self-contained lock body — including a latch, deadbolt, and sometimes a lever — set into a rectangular pocket cut into the door edge. They are common on older homes and commercial doors in Mississauga. A standard deadbolt is a single-function cylinder mounted through a hole in the door face. Mortise lock rekeying requires disassembling a more complex unit, so it does take more time. Pricing factors include the lock type, the specific cylinder keyway, and parts required — your technician will confirm the exact price before starting.
I'm locked out right now. Can you rekey the locks the same night after letting me in?+
Yes. Our home lockout service and rekeying are frequently completed in the same visit. Once our emergency locksmith verifies your identity and gains access to the property using damage-free methods where possible, you can ask for an on-the-spot rekeying of any or all exterior locks. This is especially practical if you suspect the key loss or lockout is linked to a security concern. Call (289) 206-5983 and we will dispatch a technician to your Mississauga location right away — we answer 24/7.
Can you key all my exterior locks to one key, including mismatched brands?+
In most cases, yes. Our technicians carry an extensive range of pin kits and keyway blanks. Locks from different brands — for example, a Schlage deadbolt on the front door and a Kwikset knob set on the rear — can often be rekeyed to operate on a single key by standardizing the keyway and pin configuration across all cylinders. There are situations where the keyways are physically incompatible and a cylinder swap is needed, but we will explain that clearly and confirm the approach and price before proceeding.
What factors affect the price of a home rekeying job?+
The final quote depends on several variables: the number of locks being rekeyed, the lock types (standard deadbolt, door knob lock, mortise lock, high-security cylinder), whether any parts like specialty pins or new keyway cylinders are needed, the time of day (evening and overnight calls reflect after-hours dispatch), and travel distance to your Mississauga address. We always confirm a firm, all-inclusive price before any work begins — there are no surprise charges added after the job is complete.