Astral PASS LOCK & KEY
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Locksmith Service

Door Knob Lock Installation

Whether you're upgrading an aging knob lock on a century-old semi-detached in The Annex, replacing a broken door knob with lock and key on a Scarborough rental unit, or adding a fresh entry set to a new build in North York, the right installation makes all the difference between a door that feels secure and one that simply looks it. A poorly fitted knob lock — even a quality one — can bind, fail to latch cleanly, or leave a gap that undermines the whole point of having it. Astral Pass Lock & Key handles these jobs properly, from the first measurement to the final test turn.

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Open 24 hours, 7 days a week · Licensed, bonded & insured

We're a 24/7 mobile locksmith team serving Toronto and the surrounding area. That means we come to you — no shop drop-off, no waiting for a technician to become available between 9 and 5. Whether you need a straightforward door knob lock installation on an interior bedroom door or a full entry-set replacement with a mortise lock upgrade on a commercial storefront along Yonge Street, our trained and insured technicians carry the hardware and tools to complete the job on-site, damage-free where the situation allows. Call (647) 492-0903 any time — day or night.

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 Toronto, we reach the Toronto 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.

01

What Goes Into a Proper Door Knob Lock Installation

A door knob lock installation is more involved than most people expect. The process starts with assessing the door's thickness, the existing bore-hole diameter, the backset measurement (the distance from the door edge to the center of the hole), and whether the strike plate and jamb are aligned correctly. Standard residential doors in Toronto's older housing stock — think pre-war doubles in Roncesvalles or post-war brick homes in Etobicoke — often have non-standard dimensions or layers of paint-over paint that affect how a new lock fits. Getting these measurements right before any hardware goes in is what separates a clean installation from one that sticks, rattles, or fails to latch under normal use.

Our technicians carry a range of knob lock grades on the van. Grade 3 knob locks suit interior privacy doors — bathrooms, bedrooms — where security isn't the primary concern. Grade 2 sets are appropriate for light exterior use. For a true entry door, though, we frequently recommend pairing a knob lock with a deadbolt, or stepping up to a mortise lock body, which integrates the latch, deadbolt, and sometimes a security bolt into a single reinforced pocket routed into the door edge. Mortise lock installation is a specialty of ours: it requires precise chiseling and routing, and the result is a door that feels genuinely solid — the standard you'd expect on a well-maintained commercial or multi-unit residential property.

key maker professional — Astral Pass Lock & Key
02

Interior vs. Entry Door Knob Lock Replacement — Key Differences

Replacing an interior knob lock is generally the simpler of the two jobs. Interior passage knobs have no keying, and privacy knobs use a small push-button or turn-piece. The main concerns are correct backset (2-3/8" is most common in Canadian residential construction, but 2-3/4" appears frequently in older Toronto homes), smooth latch operation, and a strike plate that catches cleanly without forcing the door. We also check that the spindle length matches the door thickness — a mismatch here causes the knob to feel loose or wobble within a year.

Entry door knob lock replacement involves additional considerations: keying, security grade, weatherstripping clearance, and compatibility with any existing deadbolt above it. A door knob with lock and key needs to be keyed alike with your deadbolt if you want a single key to operate everything — our technicians can rekey on-site so you're not carrying two keys for the same door. For clients managing multi-unit buildings along Danforth Avenue or on St. Clair West, we also offer master-key system configuration so landlords carry one key while tenants have individual access. If you're weighing a smart lock installation for keypad or app-based entry, we can walk you through compatible options that fit the existing prep on your door — no new boring required in most cases.

home security lock door — Astral Pass Lock & Key
03

Mortise Lock and Commercial Door Knob Lock Services in Toronto

Commercial properties have demands that standard residential knob locks simply aren't built to meet. High-traffic doors on retail units, offices, and multi-residential lobbies need hardware rated for heavy daily use, and the lock mechanism itself has to hold up to repeated cycling without loosening. This is where a mortise lock body genuinely outperforms a cylindrical knob lock: the mechanism is housed in a steel case set into the door stave, not just surface-mounted, and the latch and bolt are controlled by a single integrated unit. As a commercial locksmith serving businesses across downtown Toronto, Midtown, and the inner suburbs, Astral Pass regularly installs, services, and replaces mortise lock sets on commercial doors where the volume of use would wear out a standard knob lock in months.

We also handle lock installation on aluminum-frame commercial doors, hollow-metal frames, and fire-rated door assemblies — each of which has specific hardware requirements that affect which lock body is appropriate and how the strike plate must be reinforced. If you manage a property and need an assessment of your current door hardware, our technicians can inspect, advise, and carry out the work in a single visit. Call (647) 492-0903 to arrange a same-day or scheduled appointment — we're available around the clock, including weekends and holidays.

home security lock door — Astral Pass Lock & Key
04

Locked Out? What to Do Before You Call an Emergency Locksmith

Getting locked out because a door knob lock has failed, seized, or been accidentally locked from inside is one of the most common calls we receive — particularly in the winter months when Toronto temperatures drop and older lock mechanisms contract or ice up. Before calling an emergency locksmith, it's worth doing a quick check: is there a spare key with a trusted neighbor, family member, or building superintendent? Is there a secondary entrance — a rear door, side gate, or garage access — that may still be open? These steps cost nothing and sometimes resolve the situation immediately.

If none of those options are available, do not attempt to pick a door knob lock or force entry yourself. Improvised entry attempts frequently damage the lock cylinder, the door frame, or the door itself — damage that can turn a straightforward service call into a full lock-and-frame replacement job. Our emergency locksmith technicians are trained to open locks using professional, non-destructive methods, and we carry the verification process seriously: we'll ask for proof of address or ownership before any work begins. We're mobile, insured, and available 24/7 across Toronto — from Liberty Village to Scarborough Town Centre — so help is typically closer than you'd expect.

home security lock door — Astral Pass Lock & Key
05

How Pricing Works for Door Knob Lock Installation

We don't publish flat-rate tables online, because the actual cost of a door knob lock installation or replacement depends on several real variables: the type and grade of hardware required, whether the existing bore-hole needs to be modified, the time of day the call comes in (overnight and holiday calls carry a different rate than standard daytime work), travel distance to your location within the Toronto area, and whether rekeying or a new cylinder is needed alongside the physical installation. A straightforward interior knob replacement on a standard-prep door is a very different scope from a full mortise lock installation on a commercial entry door with a non-standard frame.

What we commit to in every case is transparency: before any technician begins work, you receive a clear, confirmed price for the full job. No surprises after the fact, no add-ons you weren't told about. If the scope changes once the door is open and we find something unexpected — a damaged sub-frame, a non-standard backset — we stop, explain what we've found, and get your approval before continuing. That process applies whether you're a homeowner in Leslieville, a property manager in Mississauga, or a business owner on King Street West.

home security lock door — Astral Pass Lock & Key

Frequently asked questions

What is the difference between a knob lock and a mortise lock, and which do I need?

A knob lock uses a cylindrical mechanism that sits in a bored hole through the door face. It's common on residential interior and light-duty entry doors. A mortise lock uses a rectangular steel case set into a pocket routed into the door edge, integrating the latch and deadbolt into one unit. Mortise locks are significantly more robust and are the standard choice for commercial doors, high-traffic residential entries, and any situation where long-term security and durability matter. Our technicians will assess your door and use case and recommend the appropriate hardware — we install both types across Toronto.

Can I get my new door knob with lock and key matched to my existing deadbolt so I only need one key?

Yes — this is one of the most practical things we do during an installation. The process is called keying alike. Our technicians rekey the new knob lock cylinder so it operates on the same key cut as your existing deadbolt. We can do this on-site during the same visit as the installation, and it works across most major hardware brands including Schlage and Kwikset. If you're managing multiple units and want a master-key configuration, we handle that as well.

How long does a door knob lock installation typically take?

A standard residential installation — removing the old hardware, fitting the new knob lock set, adjusting the strike plate, and testing operation — typically takes between 30 and 60 minutes on a door with a standard prep. A mortise lock installation takes longer because it involves routing a precise pocket into the door edge and fitting the lock case, which can run 1.5 to 2.5 hours depending on door material and existing conditions. We'll give you a realistic time estimate when you call, and our technician will confirm it when they assess the door in person.

I've seen searches for how to pick a door knob lock — can I do that to get back into my own home?

We understand the impulse when you're locked out, but we strongly advise against attempting to pick a lock yourself. The tools and techniques involved require significant training to use without causing damage, and improvised attempts with household objects frequently damage the cylinder pins, the cam, or the face of the lock — turning a simple lockout call into a full replacement job. The safest path is to check for a spare key, try other entrances, and then call our emergency locksmith line at (647) 492-0903. We're available 24/7, we'll ask for proof of ownership or residence, and we're trained to open your door without unnecessary damage.

What factors affect the price of a door lock installation?

Several variables determine the final quote. The type of lock matters most — a basic interior passage knob is a different scope from a full mortise lock installation on a heavy commercial door. Door condition and prep also factor in: if the bore hole needs to be enlarged, the frame reinforced, or a new strike plate mortised in, that adds to the work. Time of day plays a role, since overnight and holiday calls have different rates. Travel distance to your location within the Toronto area is a factor too, as is whether you need rekeying or additional hardware. We confirm the exact price before any work begins — no surprises.

Do you offer smart lock installation alongside standard door knob lock services?

Yes. Smart lock installation is a growing part of what we do, particularly for condo owners, short-term rental hosts, and small businesses that want keypad or app-controlled access without carrying physical keys. Many smart lock models are designed to fit into the same bore hole as a standard cylindrical knob lock, which keeps installation straightforward. Where a door prep isn't compatible, we assess whether a simple modification is appropriate or whether a different product better fits the door. We'll discuss your specific situation when you call and recommend options based on your door, your use case, and your preference for how you want to manage access.

Locked out or need a lock fixed? We are on the way.

(647) 492-0903Get a fast quote