Locksmith in Thornhill, ON
Thornhill's leafy streets and active neighbourhoods — from the trails winding through Pomona Mills Park to the busy parking lots around Promenade Shopping Centre — mean life moves fast, and lockouts or lost keys can happen to anyone at any time. That's why Markham Locksmiths keeps a trained technician on the road around the clock, ready to come directly to your door, your car, or wherever you're stuck, 24 hours a day, seven days a week.
Open 24 hours, 7 days a week · Licensed, bonded & insured

Whether you've come home from a jog to find your house keys missing or you simply need a spare set cut before the week gets away from you, our local tech arrives fully equipped to rekey locks, cut new keys, or get you back inside on the spot — no waiting, no runaround. Every job comes with a clear, upfront quote before we touch a single lock, so there are no surprises when the work is done.
Why neighbors call us first
Available 24/7
Day, night, weekends and holidays — a real local locksmith answers and rolls a fully-stocked van.
Fast local response
Based in Markham, we reach the Markham 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.
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.
Thornhill, ON L3T 3N1 · Get directions →
Frequently asked questions
How fast can you get to me?
From our Markham base we reach the Markham area in 20–40 minutes. When you call, we give you a realistic ETA before we dispatch.
Do you charge extra at night or on weekends?
We quote a clear price before any work begins. There are no hidden after-hours surprises — you approve the number first, then we get to work.
Will you damage my lock or door?
Almost never. The large majority of lockouts are solved with non-destructive picking and bypass tools. If a lock truly must be drilled, we tell you first and can replace it on the spot.