Locks · 9 min read

Rekey vs Replace: Mississauga Home Security

You just bought a house in Streetsville. The previous owners gave you a single set of keys. You don't know who else has copies. Maybe the old neighbour, maybe the cleaning lady, maybe the ex-spouse. That key works. But it's a liability. You need to secure your new home. This is where you decide between rekeying your existing locks or replacing them entirely. It's not a complicated choice, but it needs to be the right one.

Rekeying: The Practical Option

Rekeying means we change the internal pins of your existing lock cylinders. Your old keys won't work anymore. We cut new keys that fit the rekeyed cylinders. The lock hardware itself stays on the door. This is a common service call for Intrust. Most standard residential locks from brands like Schlage, Yale, or Kwikset can be rekeyed. It's quicker and cheaper than replacing everything. We do this daily in neighbourhoods like Port Credit, Erindale, and Cooksville.

The process is straightforward. We remove the lock cylinder, take it apart, swap out the pin tumblers, and put it back together. It usually takes about 10-15 minutes per lock, depending on the lock type and its condition. If you have five locks on your house, including front door, back door, and garage access, that's roughly an hour to an hour and a half of work. We bring all necessary tools and pin kits with us. You get a fresh set of keys that only you control.

You should rekey your locks when you move into a new place, lose a key, or fire an employee who had access. It’s also good practice if you’ve lent keys to contractors or house sitters and want peace of mind afterwards. Rekeying secures your property without the expense of new hardware. It's about control over who has access, not about upgrading security hardware itself. We typically recommend rekeying if your existing locks are in good working order and are of decent quality.

There are limits to rekeying. If your lock is damaged, worn out, or a very old, obscure model, rekeying might not be an option. Some extremely cheap, no-name locks found on basic apartment doors or sheds might not be designed for rekeying. If a cylinder is seized, rusted through, or has been tampered with, rekeying won't fix the underlying mechanical issue. In these cases, replacement is the only sensible choice. We'll tell you upfront if a lock isn't worth rekeying.

Replacing: When to Upgrade

Replacing a lock means we take the old hardware off your door and install a brand new lock assembly. This includes the cylinder, the mechanism, the handles, and the trim. You get new keys, obviously. Replacement is necessary if your current locks are broken, heavily worn, or offer inadequate security. It's also the time to upgrade to higher security locks, smart locks, or if you want a different style or finish for your door hardware. We do full replacements regularly in Lorne Park, Clarkson, and East Credit.

When you replace a lock, you're not just getting new keys; you're getting a whole new piece of hardware. This can improve the physical security of your door if you choose a better lock. For example, upgrading from a standard Kwikset knob to a Medeco deadbolt is a significant security improvement. You also get a fresh warranty on the new hardware. If your current locks feel loose, sticky, or are visibly damaged, replacement is the way to go.

A common scenario for lock replacement is when a homeowner wants to standardize their keys. Maybe you have a mix of Schlage and Yale locks, each with different keys. We can replace them all with one brand, like Schlage, and key them alike. This means one key opens all your exterior doors. This simplifies your key management and is convenient. It also ensures consistent security across all entry points. This is a common request in new builds or after renovations in areas like Churchill Meadows.

Replacement also comes into play with smart home integration. If you want to install a smart lock like a Schlage Encode or a Yale Assure, you're replacing the existing deadbolt entirely. These smart locks offer features like keyless entry, remote access, and activity logs. They require specific door preparations and can be a significant upgrade in convenience and security. We install these regularly, ensuring they integrate correctly with your door.

Cost Breakdown: Rekey vs. Replace

Let's talk money. Rekeying is almost always cheaper than replacing. For a standard residential lock, rekeying costs typically range from $35 to $65 per cylinder, plus the service call fee. If you have multiple locks, the per-lock price often drops slightly. For instance, rekeying three cylinders might be $120-$180 total, plus the service call. This makes it a cost-effective solution for securing a new property or after a key loss.

Replacing a lock is more expensive because you're paying for new hardware. A basic, decent quality deadbolt from Schlage or Yale can cost $70-$150 just for the lock itself. Installation labour for a single deadbolt is typically $60-$90, plus the service call. If you're replacing multiple locks, the hardware cost adds up quickly. A full replacement of two deadbolts and a knob set could easily run $300-$500 or more, not including the service call, depending on the quality of the new hardware.

Here's a rough breakdown for a typical Mississauga home with two deadbolts and one doorknob that can be rekeyed:

* Rekeying 3 locks: * Service call: $29 * Rekeying labour: $35-$65 per lock x 3 = $105-$195 * New keys: Included, usually 2-3 per lock * Total estimated: $134-$224

* Replacing 3 locks (basic Schlage/Yale hardware): * Service call: $29 * Hardware cost: $70-$150 per lock x 3 = $210-$450 * Installation labour: $60-$90 per lock x 3 = $180-$270 * New keys: Included with new locks * Total estimated: $419-$749

These are estimates. The final price depends on the specific locks, their condition, and any additional work required. Our service call is always $29 for Mississauga, Toronto, and Vaughan. We provide a firm quote before starting any work.

Security Levels: Standard vs. High Security

When we talk about security, rekeying only changes who can open the lock with a key. It doesn't change how resistant the lock is to physical attack, picking, or bumping. If you have a cheap, standard lock, rekeying it won't make it a high-security lock. It will still be vulnerable to common break-in methods. For true security upgrades, you need to replace the lock with a better one.

High-security locks, like those from Medeco or Mul-T-Lock, are designed to resist a range of attacks. They have patented keyways, hardened steel components, and advanced pinning systems that make them extremely difficult to pick, drill, or bump. You can't just rekey a standard lock to make it high-security. You have to install a high-security lock. These locks are often identified by their heavier construction and unique key designs.

Consider your neighbourhood and personal risk assessment. If you live in a quiet part of Meadowvale or Streetsville and your current standard locks are in good shape, rekeying might be sufficient. If you're in an area with higher crime rates, or you store valuable items, upgrading to high-security locks through replacement is a sensible investment. We can advise on the best options for your specific situation and budget.

It's not just about the lock itself. The door, frame, and strike plate all play a role in security. A high-security deadbolt on a flimsy hollow-core door or a weak door frame won't offer maximum protection. We can also assess these elements during a service call. Sometimes, reinforcing the door frame with a heavy-duty strike plate is as important as the lock itself.

Specific Lock Types and Scenarios

* Front Door Deadbolt: This is your primary security. If it's a standard Schlage B-series or Yale G-series, and it's working well, rekeying is fine. If it's old, loose, or you want better security, replace it with a Medeco Maxum or a Mul-T-Lock Interactive+. * Back Door/Side Door: Often overlooked. These doors need the same level of security as your front door. If they have only a knob lock, add a deadbolt, which means a replacement and new installation. * Garage Access Door: Crucial. This door often leads directly into your house. Many homes have only a basic knob lock here. Upgrade to a deadbolt. Rekey it if it's already a good deadbolt. * Patio Door: Sliding patio doors often have weak locks. Rekeying isn't usually an option for these internal mechanisms. Consider adding a secondary security bar or a specialized patio door lock. * Shed Locks: Usually padlocks or simple keyed entry sets. Rekeying is rarely cost-effective or even possible. Replace with a weather-resistant padlock or a new keyed entry set. * Interior Doors (e.g., home office): Usually privacy knobs, not for security. If you need security for an interior door, install a keyed knob or deadbolt. This is a replacement. * Mailbox Locks: Often small, wafer-tumbler locks. Rekeying is possible but often cheaper to replace the entire cam lock.

For any of these scenarios, we will assess the existing hardware. If it's a basic Kwikset deadbolt that's 20 years old and sticking, we'll recommend replacement. If it's a solid Schlage B60 that just needs new keys, we'll rekey it. Our goal is to provide the best solution for your security and budget.

High-Security Lock Comparison

When you decide to replace and upgrade, especially for high-security, you'll encounter a few top-tier brands. These aren't your average hardware store locks. They offer superior protection against picking, drilling, bumping, and forced entry.

* Medeco Maxum Deadbolt: * Pros: Patented key control (keys can only be duplicated by authorized dealers with proper ID), extreme pick and bump resistance, hardened steel inserts to resist drilling, UL 437 listed for high security. Very robust construction. Available in various finishes. * Cons: Higher cost (typically $250-$400 per deadbolt for hardware alone, plus installation), keys are more expensive to duplicate. Not as widely available as standard locks. * Best for: Main entry doors, commercial applications, anyone prioritizing maximum security and key control.

* Mul-T-Lock Interactive+ Deadbolt: * Pros: Similar to Medeco, offers patented key control, high pick, drill, and bump resistance. Unique telescopic pin technology. Good for master key systems. Also UL 437 listed. Often available in a "key-alike" option where one key operates multiple Mul-T-Lock cylinders. * Cons: High cost (similar to Medeco, $250-$400 per deadbolt for hardware), specific key duplication procedures. Can feel slightly different in operation than standard locks. * Best for: High-security residential and commercial use, integrated master key systems, properties needing robust protection.

* ASSA ABLOY Twin 6000 Deadbolt: * Pros: Another top-tier option with patented key control, excellent resistance to picking, drilling, and bumping. Solid construction and reliability. Keys are difficult to duplicate without authorization. * Cons: Similar high price point as Medeco and Mul-T-Lock ($250-$400+ for hardware), less common in residential settings compared to Medeco or Mul-T-Lock, which might mean slightly longer lead times for specific finishes. * Best for: High-end residential, commercial, and industrial applications where proprietary key control and maximum security are non-negotiable.

These locks are installed by trained professionals because they require precise installation to function correctly and provide their intended level of security. We carry and install all these brands.

When to Call a Locksmith

Don't wait until you're locked out or after a break-in. Proactive security is always better. Call us if:

* You just moved into a new property in Mississauga, Vaughan, or Toronto. * You've lost your keys and are concerned about who might find them. * You've had a roommate, tenant, or employee move out. * Your locks are old, worn, or difficult to operate. * You want to upgrade your home's security. * You want all your exterior doors to open with a single key. * You've experienced a break-in attempt or actual break-in. * You need advice on the best security solutions for your specific property.

We're on the road. We cover the entire GTA. Our arrival times are typically 15-30 minutes for emergency calls in Mississauga, from Port Credit to Malton. For scheduled appointments, we book you in at your convenience.

Our Service Area and Response Time

Intrust operates throughout the Greater Toronto Area. This includes all of Mississauga, from the waterfront properties in Port Credit up to the industrial zones near Pearson Airport. We also cover all of Toronto, from Etobicoke to Scarborough, and Vaughan, including Woodbridge and Maple. Our service call fee is $29 within these core areas. If you're slightly outside, say in Brampton or Oakville, the service call might be slightly higher, but we'll always quote it upfront.

When you call us, you're talking to a locksmith, not a call centre. We dispatch quickly. For emergencies, we aim for a 15-30 minute arrival. For non-urgent appointments, we schedule at your convenience. We keep our vans stocked with common residential and commercial lock hardware, rekeying kits, and tools to handle most jobs on the first visit. This means less waiting for you and faster resolution of your security needs.

We stand by our work. All labour and parts are warrantied. If a lock we installed or rekeyed fails due to our workmanship or a defect in the part, we'll fix it. We are licensed and insured, which means you're protected. We operate under proper legal and professional standards. This isn't a fly-by-night operation. We've been doing this for over a decade.

FAQs

Q: Can all locks be rekeyed? A: Most standard residential deadbolts and doorknobs from major brands like Schlage, Yale, and Kwikset can be rekeyed. However, some very old, damaged, or cheap, non-standard locks might not be rekeyable. We will assess this on site.

Q: How long does rekeying take? A: Rekeying a single lock cylinder usually takes about 10-15 minutes. For a typical home with 3-4 locks, the entire rekeying process, including cutting new keys, can be completed within 45 minutes to an hour and a half.

Q: Do I get new keys when I rekey? A: Yes, absolutely. The entire point of rekeying is to make your old keys obsolete. We will cut brand new keys that fit the rekeyed cylinders. We typically provide 2-3 new keys per rekeyed lock.

Q: What's the difference between rekeying and master keying? A: Rekeying changes the lock so only one specific key works it. Master keying sets up a system where each lock has its own unique key, but there's also a single "master" key that can open all of them. Master keying is more complex and usually for commercial or multi-unit residential properties.

Q: Will rekeying make my lock stronger? A: No. Rekeying only changes which key operates the lock. It does not alter the physical strength or resistance of the lock to forced entry, picking, or drilling. For stronger security, you need to replace the lock with a higher-security model.

Q: Can I rekey my own locks? A: While DIY rekey kits exist, it's a precise job. If done incorrectly, the lock can malfunction, leaving you locked out or with a compromised lock. It's best left to a professional locksmith to ensure proper function and security.

The Final Word

For homeowners in Mississauga, whether you choose to rekey or replace your locks depends on your current hardware's condition, your budget, and your security priorities. If your existing locks are in good shape and provide adequate security, rekeying is a fast, cost-effective way to regain control of your keys. If your locks are old, broken, or you need a significant security upgrade, then replacement is the only sensible choice. Either way, get it done right. Call us.

Related guides

← All posts
Call now