Residential Locksmith Services in Markham & the Markham area
When you're standing on your porch in Unionville or Cornell realizing the door has clicked shut behind you, a fast, careful response matters more than anything. Markham Locksmiths is a 24/7 mobile residential locksmith serving homes across Markham, from the heritage streets around Main Street Unionville to the newer subdivisions near Cornell Community Centre and the townhome pockets off Highway 7. Our trained, insured technicians come to you in a stocked van, ready to handle everything from a simple lock rekeying to a full deadbolt upgrade or a modern mortise smart lock.
Open 24 hours, 7 days a week · Licensed, bonded & insured

Homeowners call us for all kinds of reasons: getting locked out of the house late at night, changing the locks after a move, replacing a worn door knob lock, or hardening entry points after a break-in scare. Whatever brought you here, we focus on damage-free entry wherever possible, honest advice about what your door actually needs, and an exact up-front price confirmed before any work begins. Whether you're near Markville Mall, Milliken Mills, Berczy Village, or Angus Glen, help is usually a short drive away.
What we do
Mortise Lock Installation & Repair
We fit, adjust, and repair mortise locks on solid wood and heritage doors common in older Markham neighbourhoods.
Door Knob & Deadbolt Service
Replace worn door knob locks and add grade-rated deadbolts for stronger entry-door security.
Home Rekeying
Rekey all your locks to a single key after a move or lost-key situation without swapping the hardware.
Smart Lock Setup
Install and configure keypad and Wi-Fi smart locks so you can ditch keys and grant access remotely.
Locked Out of the House? Here's How Our Damage-Free Entry Works
Being locked out of your house is stressful, especially at night or when there's a child, a pet, or a stove left on inside. Before you do anything, take a breath and run through the safe basics: check every door and ground-floor window, look for a spare key with a trusted neighbour or in a lockbox, and confirm no one else in the household is on their way home. If you're locked out of the house with no key and none of those work, that's exactly when to call a professional rather than risk damaging the door or hurting yourself.
When our technician arrives for a home lockout service, the first step is always ownership verification — we'll ask for ID or another reasonable proof that you belong at the address. This protects you and your household. From there, we assess the lock type, whether it's a standard door knob lock, a deadbolt, or a mortise lock, and choose the least invasive method to get you back inside. In the large majority of residential lockouts, we can open the door using specialized tools without drilling or breaking anything.
If a lock is damaged, seized, or a key has snapped off inside, we'll explain your options clearly before touching the hardware — sometimes the cylinder can be saved, and sometimes a lock change is the smarter long-term fix. What determines your final price is the lock type, the time of day, how far we travel to reach you, and whether any parts are needed. You'll hear an exact figure before we start. Call (289) 276-8431 — we answer 24/7 and our emergency locksmith team is mobile across Markham.

Lock Rekeying vs. Lock Change: Which One You Actually Need
A lot of homeowners searching for how to rekey a lock aren't sure whether they need rekeying at all or a full replacement. Here's the honest difference. Rekeying keeps your existing hardware but changes the internal pins so your old keys stop working and a new key takes over. It's ideal when the locks are in good shape and you simply want to control who has access — a common request after a move, a breakup, or when you've handed keys to too many contractors, cleaners, or tenants over the years.
A lock change (full replacement) makes sense when the hardware itself is failing, outdated, or not secure enough. If a deadbolt is loose, a knob is grinding, finishes are corroded, or you want to step up to a higher grade or a smart lock, replacing is the right call. People often ask us to rekey a lock on the front and back doors so a single key opens both — that's a quick win we can do on-site, and it's a good example of when lock rekeying beats buying all-new hardware.
When customers look up rekey locks near me or rekey a lock, we walk them through both paths on the spot and recommend whichever genuinely serves them, not whichever costs more. Rekeying is usually faster and keeps quality hardware in service, while replacement is worth it when parts are worn or you want new features. Either way, the price depends on the number of locks, the hardware involved, and travel — and we confirm it before starting.

Deadbolt, Mortise Lock and High-Security Installation for Stronger Doors
Your front door is only as strong as its weakest component, and on many older Markham homes that weak point is a tired knob-and-deadbolt combination with a short strike screw. We install and upgrade Grade 1 and Grade 2 deadbolts, reinforced strike plates with long screws that bite into the wall framing, and heavy-duty mortise locks that sit inside a pocket cut into the door edge for serious durability. A mortise lock is a favourite for solid wood and character doors around Unionville because it combines strength with a clean, classic look.
Mortise hardware is a genuine locksmith specialty — it isn't a quick swap like a standard cylindrical knob. It involves fitting the lock body, aligning the handle and thumbturn, and setting the cylinder precisely so the door closes smoothly for years. Our technicians are experienced with both traditional keyed mortise sets and modern mortise smart lock conversions, so you can keep the substantial feel of a mortise door while adding keyless convenience.
Beyond the front entry, we harden patio doors, side and garage-to-house doors, and basement entrances — often the points intruders test first. If you're weighing security upgrades after a scare or a break-in nearby, we'll do a walkthrough and point out practical fixes rather than overselling. The final quote reflects the grade of hardware you choose, how many doors are involved, and any adjustments the doors need to fit the new locks properly.

Smart Locks and Keyless Entry: What Actually Works at Home
Smart lock installation is one of our fastest-growing residential requests, and for good reason: keypad and app-controlled locks mean no more hiding spare keys under the mat, plus you can grant temporary codes to family, dog walkers, or Airbnb guests and delete them anytime. We install keypad deadbolts, fingerprint locks, Wi-Fi and Bluetooth models, and full keyless entry systems from trusted hardware brands like Schlage and Kwikset, and we make sure they're fitted and aligned so the motor isn't fighting a misaligned door.
Not every smart lock suits every door. Handing over your door dimensions, backset, and existing prep helps us recommend a model that fits without butchering the door. For heavier or older entries, a mortise smart lock retains the strength of a mortise body while adding a keypad or app control — a smart pairing for solid Markham doors that deserve better than a cheap retrofit. We'll also set up auto-lock, low-battery alerts, and backup key access so a dead battery never leaves you stranded.
During installation we handle the mechanical fit, program your first codes, connect the app, and walk you through daily use before we leave. If you're moving to keyless, we can rekey or remove the old cylinders too, so no forgotten spare key floats around. Ready to modernize your entry? Call (289) 276-8431 and our mobile team will bring the tools and know-how to your door.

Just Moved In? A New-Home Security Checklist for Markham Homeowners
Buying a home in Berczy Village, Wismer Commons, or Greensborough is exciting — but you rarely know how many copies of the old keys are floating around with previous owners, agents, cleaners, and past contractors. Rekeying every exterior lock on move-in day is the single most cost-effective security step you can take. We can rekey your existing locks so one fresh key works everywhere, or change out any hardware that's damaged, mismatched, or below the security level you want.
A proper move-in walkthrough goes beyond the front door. We check the back and side doors, the interior garage door (a commonly overlooked entry point), patio and sliding doors, mailbox locks, and any padlocks on sheds or gates. We'll flag doors with weak strike plates, gaps that make deadbolts easy to force, and locks that are simply worn out. For families, we can add child-safety considerations and interior privacy locks where they make sense.
This is also the perfect moment to think about whether keyless entry fits your routine, or whether a matched set of quality deadbolts is the better investment. We give you the trade-offs plainly and quote the whole package up front — number of doors, chosen hardware, and travel included. No surprises, no pressure to add anything you don't need.

Beyond the House: Eviction Lockouts, Window Gates and Multi-Family Buildings
Markham has a growing mix of townhomes, condos, and rental properties, and residential needs don't stop at single-family houses. For landlords and property managers, we handle lawful eviction lockouts and tenant-turnover rekeying — with proper documentation and process — so a unit is secure and ready for the next occupant. We can also set up master-key systems for multi-family buildings so managers hold one key while each unit keeps its own, a big convenience for anyone overseeing several doors.
We install and repair window security gates and door gates for ground-floor units and basement apartments, along with mailbox and common-area locks. Where a building blends home and light business use — a home office, a live-work townhouse, or a small shared entry — our commercial locksmith experience means we can address heavier-duty hardware, panic exit devices, and access control alongside your residential locks in one visit.
For any of these jobs, pricing depends on the number of units and locks, the hardware grade, travel distance, and time of day for after-hours calls. We confirm the full scope and an exact figure before we begin, and everything is handled by trained, insured technicians. Whether it's a single stuck deadbolt in Milliken Mills or a full turnover across several units, call (289) 276-8431 — we answer 24/7.

Brands We Service
We install, repair and rekey all major lock brands — from everyday deadbolts to high-security cylinders.
Don’t see your brand? We service virtually every make — just call.
Before you call — what to expect
What Customers Usually Ask Before Booking a Markham Locksmith
Will you be able to handle my specific lock type, including mortise locks? Yes — our technicians work with the full range of residential and commercial hardware, including mortise lock sets, door knob locks, deadbolts, and high-security cylinders. When you call, just describe the lock and door type so we can confirm on the spot.
How is the price determined? Your quote is shaped by a few honest factors: the type of lock or vehicle involved (a mortise lock service differs in labour from a simple door knob lock rekey), whether the call is during regular hours or overnight, your location within Markham relative to our technician, and any parts or cylinders needed. We confirm an exact up-front price before a single tool is touched — no surprises on the invoice.
How do I prove I own the property or vehicle? This is a question we genuinely welcome. We ask for a piece of government-issued photo ID and, where practical, supporting ownership documents such as a lease agreement, title, or utility bill. This step protects you as much as it protects us, and we apply it consistently on every call. If you are locked out right now and need guidance while you wait, call us at (289) 276-8431 — we answer around the clock.
Can you actually come out right now, day or night? We operate 24/7 across Markham, including holidays and late nights. Our mobile service covers neighbourhoods from Unionville and Milliken Mills to Cornell and Greensborough, so a technician is generally already on the road somewhere nearby. Call (289) 276-8431 and we will tell you where our closest available technician is at that moment.
How Our Quote Process Works — Transparent Pricing for Every Locksmith Markham Job
Step 1 — Tell us exactly what you need. When you call (289) 276-8431, a real person picks up and asks a few focused questions: your address, the type of lock or vehicle (mortise lock, door knob lock, car make and model, commercial door hardware, etc.), and a brief description of the situation. The more specific you are, the more accurate the quote we can offer.
Step 2 — We factor in everything that affects your cost. Over the phone we consider the service type, the hardware involved, time of day, and how far our nearest technician is from your location in Markham. There are no hidden call-out fees added later — all relevant factors are accounted for in this step.
Step 3 — You receive a confirmed price before we start. Once the technician arrives and verifies the lock or situation in person, they state the exact price out loud and wait for your go-ahead. For straightforward jobs the phone estimate and the on-site price match. If something unexpected is found — say, a damaged mortise lock housing that needs a replacement part — the technician explains it and gives you an updated figure before proceeding.
Step 4 — Work begins only on your approval. You are never obligated to continue if the confirmed price does not suit you. If you give the green light, the technician gets to work. Payment is collected after the job is complete and you are satisfied with the result.
What to Expect from a Markham Locksmiths Technician On-Site
A realistic arrival window, communicated clearly. When you book, we give you an estimated arrival window based on where our technician is at that moment relative to your Markham address — whether that is a home near Highway 7 and Woodbine, a commercial property along Kennedy Road, or a parking lot in the Cornell Centre area. If traffic or a delay shifts that window, we call you proactively rather than leaving you wondering.
A marked van and verifiable identification. Our technician arrives in a marked Markham Locksmiths vehicle and carries photo identification. Before any work begins, you are welcome to ask to see it. This matters especially for after-hours emergency locksmith calls when you are letting someone into your home or business at 2 a.m.
A plain-language walkthrough before and during the work. The technician will explain exactly what needs to be done — whether that is rekeying a mortise lock, replacing a worn door knob lock cylinder, programming a transponder key, or servicing commercial door hardware — and will answer any questions you have along the way. You will not be handed a completed invoice with no explanation of what changed.
A tidy, tested finish. Before leaving, the technician tests the lock or key several times in front of you to confirm it functions correctly. Any packaging, worn hardware, or debris from the job is removed from your property. If a new lock was installed — a Schlage or Kwikset deadbolt, a replacement mortise lock set, or a commercial locksmith-grade cylinder — you receive all keys cut and confirmed working before the technician closes the van door.
Service area
Areas we cover around Markham
Based in Markham, we reach the Markham area fast — 24/7. Don’t see your street? Call us, we very likely cover it.
(289) 276-8431Frequently asked questions
What should I do if I'm locked out of my house with no key?
First check every other door and any accessible ground-floor window, and see if a trusted neighbour or family member has a spare. If nothing works, avoid forcing the door or a window, since that usually causes damage that costs far more than the lockout itself. Call our 24/7 team and we'll come to you, verify you belong at the address, and use damage-free entry wherever possible.
How does rekeying a lock work, and is it as secure as a new lock?
Rekeying changes the internal pins inside your existing lock so old keys no longer function and a new key takes over, all without replacing the hardware. When the lock is in good mechanical condition, it's just as secure as it was originally and stops anyone with an old copy from getting in. If the hardware is worn or you want more strength, a full lock change is the better route, and we'll tell you honestly which one your door needs.
Can you get me back inside without damaging my door or lock?
In the large majority of residential lockouts, yes — our technicians use specialized tools to open standard knobs, deadbolts, and many mortise locks without drilling or breaking anything. Some situations, like a seized lock or a key snapped off in the cylinder, may require replacing a component, but we always explain that clearly before doing any work. Preserving your door and hardware is our default approach.
Should I rekey or replace the locks when I move into a new home?
For most move-ins, rekeying every exterior lock is the smart first step because you don't know how many copies of the old keys still exist. If any locks are damaged, mismatched, outdated, or below the security level you want, replacing those specific ones makes more sense. We can rekey the good hardware and replace only what needs it, then set it all to a single key for convenience.
Do you install smart locks and keyless entry systems?
Yes — we install keypad deadbolts, fingerprint and app-controlled locks, and full keyless systems, including mortise smart lock setups for heavier or older doors. We help you choose a model that fits your door's dimensions and prep, program your first codes, connect the app, and set up backup key access so a dead battery never locks you out. We work with trusted hardware brands and make sure the lock aligns properly so it lasts.
How much will a home locksmith visit cost?
There's no single number because the final price depends on the lock or hardware involved, the time of day, how far we travel to reach you, and whether any parts are needed. What we can promise is a clear, exact up-front quote before any work starts, so you always agree to the figure first. To verify who you're hiring, ask about insurance and confirm the technician's details when they arrive — we're happy to answer.
Do you handle eviction lockouts and rental turnovers for landlords?
Yes. We assist landlords and property managers with lawful eviction lockouts, tenant-turnover rekeying, and master-key systems for multi-family buildings, all handled with proper process and documentation. We can secure a unit and get it ready for the next occupant quickly, and we're available across Markham 24/7 for these jobs.
Are you available at night and on weekends in Markham?
Yes, our mobile team operates 24/7, including nights, weekends, and holidays, across Markham and surrounding areas from Unionville and Cornell to Milliken Mills and Berczy Village. After-hours calls are priced with the time of day factored in, and we confirm the full cost before we begin. Call (289) 276-8431 any time and a real person will help.