Commercial Lock Replacement in Toronto & the GTA

When a commercial lock fails, the whole business feels it. A seized mortise lock on a busy storefront, a worn panic bar that won't latch, a deadbolt that no longer throws cleanly after 15 years of daily use — these aren't cosmetic problems. They're security gaps and liability exposure. Ontario Door Repair replaces commercial-grade locking hardware across Toronto and the GTA, from single-cylinder upgrades to full master-key conversions across a multi-tenant property.

We've been doing commercial door and lock work for over 20 years, we're licensed and insured, and we back every job with a warranty. We're available 24/7 for same-day and emergency replacements — because a business can't stay open, or stay secure, behind a lock that no longer works. Call 647-951-3510 for a free quote.

When to Replace a Commercial Lock (Not Just Repair It)

Repairing a lock makes sense when the mechanism is sound and one part has worn. Replacement is the right call when the hardware is past its service life, out of spec for the door's traffic, or compromised. We help Toronto property managers, retail operators, and facility teams make that call honestly — sometimes the fix is a $0 recommendation to keep what you have.

Replace the lock when you see:

• The cylinder turns rough, sticks, or the key catches. Internal wear on a high-cycle door doesn't get better; it fails at the worst time.
• The latch or deadbolt no longer throws fully into the strike. A bolt that only partly engages is a security theatre — it looks locked and isn't.
• The lever sags, spins, or has play. Common on cylindrical locksets that were builder-grade to begin with.
• You've had staff turnover or lost keys. Anyone with an old key is a live risk. This is a rekey or replacement decision, not a "hope for the best" one.
• After a break-in or attempted forced entry. Even if the lock still turns, the internals and strike are often damaged. See our break-in repairs in Toronto.
• Insurance or a lease requires a specific grade. Many commercial leases and insurers now specify ANSI/BHMA Grade 1 hardware on exterior and demising doors.
• You're upgrading to access control. Replacing mechanical locks in tandem with an electric strike or magnetic lock is far cleaner done as one planned job.

Commercial Locks We Replace

Commercial hardware is a different world from residential. The grades, the mounting, and the code requirements all matter. Here's what we handle.

Mortise locks

The workhorse of storefront and institutional doors. A mortise lock body is pocketed into the door edge and carries the latch, deadbolt, and lever function in one heavy assembly. When the body wears or the door has been out of alignment for years, we replace the full mortise case and re-fit the trim. Mortise replacement is precise work — the pocket, faceplate, and strike all have to line up, which is why we recommend it be done by a commercial specialist rather than swapped like a residential knob.

Cylindrical levers

Bored (cylindrical) locksets are the most common lever hardware on interior and light-commercial doors. We replace failed units with ANSI Grade 1 or Grade 2 cylindrical locks matched to the door's traffic. High-traffic entries should be Grade 1; back-of-house and office interiors can often run Grade 2 economically.

Exit devices and panic bars

Any door in an exit path — fire exits, rear egress, assembly-occupancy storefronts — needs a compliant, working exit device. We replace worn rim, mortise, and vertical-rod devices, including Von Duprin and equivalent panic hardware. A panic bar that doesn't latch or dogs open on its own is both a security hole and a code violation. Pair this with our fire exit door service when the door itself needs attention.

Deadbolts

Commercial deadbolts should throw a full 1-inch bolt into a reinforced strike. We replace weak or worn deadbolts with Grade 1 units and, where needed, upgrade the strike and reinforce the frame so the bolt actually has something solid to bite into.

Master-key and rekey systems

For multi-unit buildings, offices, and retail chains, a master-key system lets one key open designated doors while sub-keys stay restricted. We design, replace, and re-pin master-key systems so a property manager holds a master, a tenant holds their door, and access is controlled by design rather than by a drawer full of unlabeled keys. After turnover, we rekey affected cylinders rather than replacing whole locks where the hardware is still good — the cheaper, faster path. For Toronto-specific lock change and rekey work, see our related commercial locks change in Toronto page.

Electrified hardware tie-in

Modern commercial security is rarely just mechanical. When you're replacing locks, it's the right moment to integrate electric strikes and maglocks with buzzer entry, fobs, or an access-control panel. We coordinate the mechanical replacement with electric strike installation and magnetic lock installation so the door works as one system — fail-safe or fail-secure, matched to your egress requirements.

Hardware Grades & Brands We Work With

Not all commercial locks are equal, and "commercial" on a box at a big-box store often means Grade 2 at best. We spec to ANSI/BHMA standards:

• Grade 1 — Highest commercial rating. Built for high-cycle exterior entries, storefronts, and heavy institutional traffic. This is what we recommend for any main entrance or high-use door.
• Grade 2 — Solid light-commercial rating for offices, interior, and lower-traffic doors where Grade 1 is overkill.
• Grade 3 — Residential/light-duty. We generally don't install this on commercial entries.

We routinely replace and install Schlage, Sargent, and Von Duprin exit devices, along with commercial mortise and cylindrical locksets from comparable manufacturers. If your building is standardized on a particular brand or keyway, we match it so your existing key system stays intact.

Our Replacement Process

1. Free on-site assessment. We inspect the door, frame, existing hardware, and how the door is actually used. We confirm whether replacement is warranted or a repair will do.
2. Spec and quote. You get a clear recommendation — grade, brand, function (storeroom, classroom, passage, exit device, deadbolt), and a transparent written quote. No surprises.
3. Order or pull from stock. Common commercial hardware we carry; specialized or brand-matched units we source quickly.
4. Removal and prep. We remove the old hardware, check the door prep and frame, and correct alignment or reinforcement issues that would otherwise shorten the new lock's life. A frame that's out of square kills hardware — if needed we bring in door frame repair.
5. Install and adjust. New hardware fitted to spec, strike aligned, bolt throw and latch verified, closer and door swing checked so everything works together.
6. Key, test, and hand off. We cut and label keys, set up or update the master system, test every function with you, and confirm the door latches and secures every time.
7. Warranty. Every replacement is backed by our workmanship warranty.

Post-Break-In & Turnover Security

Two situations drive most urgent replacement calls, and we handle both around the clock.

After a break-in or attempted entry, the priority is getting the door secure tonight and restoring proper security fast. Even when a lock still turns, forced-entry stress damages cylinders, latches, and strikes. We assess and replace what's compromised and reinforce the frame and strike so the same weak point isn't exploited again. This often runs alongside our break-in repair work in Toronto and emergency door repair.

After employee turnover, lost keys, or a lease change, every old key in circulation is a liability. We rekey or replace affected cylinders, reset master-key hierarchies, and — where you want to remove keys from the equation entirely — move you toward electrified access control. For offices and retail with rotating staff, a restricted keyway plus a documented key policy prevents the slow security drift that ends in an unexplained loss.

Why Choose Ontario Door Repair

• 20+ years of commercial door and lock experience across Toronto and the GTA
• Licensed and insured — important for commercial and multi-tenant work
• 24/7, same-day and emergency replacement
• Warranty on every job and free quotes
• We work the whole door, not just the lock — frames, closers, strikes, and hardware as one system

We also handle full commercial door repair and storefront entry doors, so if the lock problem is really a door problem, you have one crew for all of it.

Typical GTA Cost Ranges (2026)

Every job is quoted after we see the door — hardware grade, brand, door prep, and quantity all move the number. These are typical GTA ranges to help you budget; your free quote is the real figure.

• Cylindrical lever replacement (Grade 2): roughly $180–$350 per door, installed
• ANSI Grade 1 cylindrical or storeroom lockset: roughly $300–$550 per door, installed
• Mortise lock replacement: roughly $450–$900+ depending on body, trim, and door prep
• Commercial deadbolt (Grade 1) + strike reinforcement: roughly $250–$500
• Exit device / panic bar replacement: roughly $600–$1,400+ per device by type (rim vs. vertical-rod) and brand
• Rekey existing cylinders: roughly $25–$60 per cylinder plus a service call
• Master-key system design/replacement: quoted per building — depends on door count and hierarchy

Emergency and after-hours service is priced transparently up front. Volume and multi-location work is quoted at a rate that reflects the scope.

Service Area

We replace commercial locks across Toronto, Scarborough, North York, Etobicoke, East York, Mississauga, Vaughan, Markham, Richmond Hill, and Brampton, plus Hamilton, Burlington, Oakville, Ajax, Pickering, Whitby, Aurora, Newmarket, Thornhill, and Maple. For citywide commercial coverage see our Toronto commercial door repair page.