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Open Mon–Thu 8:30 AM–9 PM, Fri 8:30 AM–4 PM, Sun 9:30 AM–9 PM
Looking for a locksmith in Markham? GTA Lockman Mobile Locksmith Services is based in Markham, ON L3T 5K2, and works on homes, vehicles and businesses across the city, from Unionville and Cornell to Downtown Markham. We handle house and car lockouts, rekeying, lock changes, lock repair and commercial door hardware, and we bring the tools and common parts to the address so most jobs can be assessed and completed on site.
Markham combines established neighbourhoods, newer subdivisions and one of the region’s larger business districts, and each brings its own lock and door work. Older homes in Markham Village and Unionville often have original wood doors and mixed hardware added over the years, while newer houses in Cornell, Berczy Village, Cathedraltown, Wismer and Box Grove more often use handlesets, keypad deadbolts and multipoint doors. Condominium buildings around Downtown Markham, Highway 7 and Warden Avenue add building rules, fire-rated suite doors and master-key systems to the picture.
On the business side, offices, clinics, warehouses and plazas along Highway 7, Woodbine Avenue, Allstate Parkway and the Highway 404 corridor rely on storefront locks, mortise locks, exit devices and door closers that take heavy daily use. Retail units in Markville, Pacific Mall and the plazas along Kennedy Road and Steeles Avenue often have landlord rules about who may change a lock.
Our technicians travel to addresses across Markham, Thornhill, Milliken, Angus Glen and Greensborough using Highway 407, Highway 7 and the 404. Tell us the neighbourhood, the type of building and the door when you call, and we can explain what the visit would involve.

EXCELLENT
Based on 464 reviews
Posted on Google![]()
Courtney AncestryTrustindex verifies that the original source of the review is Google.
Would definitely recommend. Service was incredibly fast, and the staff were very kind. I had a new programmed key within an hour of calling. Prices are very reasonable too.Posted on Google![]()
Laura GeorgieffTrustindex verifies that the original source of the review is Google.
Sol was fantastic. He got a broken key out of a back sliding door lock that had broken off. Highly recommended.Posted on Google![]()
Leeann LuTrustindex verifies that the original source of the review is Google.
I had a weird situation with my front door where the outside handle worked but the inside handle did not so I would be locked inside my unit if the door closed all the way. Sol was very friendly and professional with his services and was able to fix it for me! He was accommodating and is fully prepared to handle all sorts of issues. Highly recommend his services! :)Posted on Google![]()
Deedee MoscoeTrustindex verifies that the original source of the review is Google.
Sol was great. Needed one door totally fixed and another lock was also not working well. He fixed both. Friendly and efficient. Highly recommend.Posted on Google![]()
Melissa PetridisTrustindex verifies that the original source of the review is Google.
The service was quick and professional. We have used them for both residential and commercial work. Would highly recommend!Posted on Google![]()
KatyaTrustindex verifies that the original source of the review is Google.
Sol was quick and efficient, showed up same day, figured out the issue and resolved it. A pleasure to deal with.Posted on Google![]()
Hao ZengTrustindex verifies that the original source of the review is Google.
I had an excellent experience with Sol from GTA Lockman. He was professional, knowledgeable, and provided excellent advice and service from start to finish. Sol rekeyed all of the existing locks in my home and installed a new smart lock as well. Everything was done efficiently and carefully, and he made sure all the locks were working properly before leaving. I really appreciate his attention to detail and expertise, especially with the smart lock installation. I would definitely recommend Sol and GTA Lockman to anyone looking for a reliable and professional locksmith!Posted on Google![]()
Kate GrayTrustindex verifies that the original source of the review is Google.
Great service from Sol. He helped problem solve and offered multiple options to change out my locks. Sol was very mindful of the expense and worked with me on cost effective options. Great work and service!Posted on Google![]()
Lucas ZabanahTrustindex verifies that the original source of the review is Google.
Awesome service, Sol is the man, would highly recommend!Posted on Google![]()
Gordon BrownTrustindex verifies that the original source of the review is Google.
Sole was very professionnel and very experienced and changed the locks on two doors and made sure we were complety happy and were comfortable with the new process of how to use the new lock system. If ever l need a locksmith. Sole is the one l recommand. Thanks again.
We are a mobile locksmith based in Markham. There is no counter to visit: a technician comes to your home, business or vehicle with the tools and parts in the van.






Tell us what you need and where in Markham. We reply during business hours and confirm the price before booking.
Call (647) 955-3277 Mon–Thu 8:30 AM–9:00 PM · Fri 8:30 AM–4:00 PM · Sun 9:30 AM–9:00 PM · Closed SaturdayWe are a mobile locksmith, so we come to your home, business or vehicle anywhere in the City of Markham. These are the neighbourhoods we are most often called to. If yours is not listed, call and ask.
The age and style of a building usually tells us what hardware to expect before we arrive. These are the building types we work on most in Markham.
Houses from the 1970s and 1980s often have original wood or steel doors, a knob lock with a separate deadbolt, and hardware from different brands added over the years. Rekeying them to one key, or replacing a worn deadbolt and strike, are the usual jobs.
Builder-grade handlesets, keypad deadbolts and fibreglass doors with multipoint locks are common. Townhouse complexes run by a condo corporation may have rules about visible hardware, so check before changing a front-door lock.
Suite doors are usually fire-rated and on a building key system. We work within building rules, and management may need to approve or arrange a cylinder change. Mailbox and storage locker locks are often handled by the building too.
Parts of Unionville, Markham Village, Thornhill and Buttonville are heritage conservation districts. If you plan to replace a front door or change visible hardware there, check with the City of Markham first; rekeying and interior lock work are not usually affected.
Storefront aluminum doors with narrow-stile deadlocks, rear steel doors and roll-up gates. Landlords often control the master key, so tenants should confirm what they may change before booking.
Mortise locks, exit devices, door closers and outward-opening rear doors with exposed latches. Typical visits cover a closer that no longer latches the door, rekeying after staff changes, and latch guards on rear doors.
Giving us a nearby landmark or major intersection helps us plan the route and find parking. These are places Markham callers often mention.
These are real requests we have received from Markham homes and businesses through our contact form. Names and street addresses have been removed.
The most common Markham request: rekeying every door after buying a house, often so the front and back doors use one key. Requests have come from Markham Village, the Kennedy Road and 16th Avenue area and the Highway 48 corridor.
Original deadbolts that are 30 to 45 years old, including Schlage and older Assa Abloy hardware, where the key no longer turns smoothly or only works in one of two locks.
Doors with multipoint locking systems that no longer latch or lock cleanly, which need the gearbox and door alignment checked together.
Spare fobs for drivers who only have one key, and fobs that stopped starting the car after a battery change.
Wi-Fi and keypad deadbolts installed and set up on existing front doors.
A master key for several office doors, a jammed panic bar on a warehouse door, desk locks with missing keys at a car dealership, and new lever handles for a sports facility's offices.
Source: enquiries from Markham addresses sent to GTA Lockman Mobile Locksmith Services through this website.
We are based in Markham (postal code L3T) and work across the city. These are the main routes we use to reach each part of the city.
Not sure what your door or lock needs? Call us with your Markham address.
Call (647) 955-3277Request a free quote
Many Markham homes were built with builder-grade locks that work but offer modest resistance to forcing. Upgrading usually starts with the door rather than the lock: a reinforced strike fixed with long screws into the wall framing, hinges that hold the door square, and a deadbolt that throws fully into the frame without the door being pushed or lifted. Where a new lock is justified, we fit hardware that suits the door’s thickness and preparation and explain the options before any work begins. Our high-security lock upgrades page explains cylinder compatibility and controlled key duplication.
For businesses, the same principle applies to storefront and rear doors: the closer has to pull the door fully shut, the latch has to catch every time, and exit devices have to release freely from inside. We quote the work after seeing the door, and we tell you when an adjustment will solve the problem without new hardware. The commercial locksmith page covers business hardware in more detail.
Price Before Work
We explain the work and confirm the price before anything starts.
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Ask for a quote by phone or through our form before you book.
Licensed & Insured
A family-owned locksmith business, established in 2010.
Based in Markham
Locally based and serving all of Markham.
Yes. We work across Markham, including Unionville, Markham Village, Cornell, Berczy Village, Cathedraltown, Angus Glen, Milliken, Thornhill and the business areas along Highway 7, Woodbine Avenue and the Highway 404 corridor. Arrival times depend on traffic and existing appointments, so we do not promise a fixed time; when you call, we tell you what scheduling is available for your address.
Yes, when the cylinders are compatible and in good condition. Rekeying replaces the internal pins so old keys stop working while the lock bodies and trim stay on the door. If your plaza or building uses a master-key system, the landlord may need to approve the change or have the system supplier do it, so check your lease first.
Yes. We install and set up keypad deadbolts, keypad levers and standalone access locks from established manufacturers, and we include the mechanical key override in the key plan. For doors on exit routes, the hardware must still let people leave freely from inside, and we will explain which options suit each door.
Yes. We confirm that you own the vehicle, then open it using methods suited to that make and model. If the key is lost or broken rather than locked inside, we can cut and program replacement keys and fobs for many vehicles on site; the car locksmith Markham page lists what that involves.
Identification that connects you to the address, a lease, or confirmation from the owner. If your documents are inside, the technician explains how verification is completed once the door is open. In condo buildings, management may hold a suite key and may have rules about lock changes, so it is worth contacting them as well.
It is a sensible step. Previous owners, contractors, cleaners and neighbours may all have held keys. Rekeying makes those keys stop working while keeping your existing hardware, and compatible locks can be set to one key for the front, side and garage doors. Remember to reset garage remotes and keypad codes as well.
Yes. Rekeying, lock repair and most interior hardware work can go ahead normally. If you plan to replace the front door itself or change visible exterior hardware on a property in a heritage conservation district such as Unionville, Markham Village, Thornhill or Buttonville, check with the City of Markham first. We can work with the hardware style you choose.
Usually you can rekey or replace the lock on your own unit door, but some Markham townhouse corporations set rules for exterior hardware or need a key on file. Check your declaration or ask property management. We can rekey the existing lock so the outside appearance does not change.
Give us the lot and the nearest entrance or row marker, for example the Unionville GO lot or a CF Markville entrance, plus the make, model and year of the car. Bring identification that matches the vehicle registration. We confirm ownership before opening the car.
Not always. Cold, moisture and a door that shifts with the seasons can make a deadbolt bind against the strike. Do not force the key. Check whether the bolt turns freely with the door open; if it does, the strike or door alignment is the likely cause, and that is usually an adjustment rather than a new lock.
Your address in Markham, what needs doing and the lock, door or vehicle involved. For car keys, give the make, model and year. Photos of the lock or the edge of the door help us bring the right parts.
We supply, set up and install door hardware for Markham homes, condos, plazas and business parks.
Deadbolts that throw fully into a reinforced strike, fitted to suit the door’s thickness and existing preparation.
New pins in existing cylinders so old keys stop working, including one key for compatible doors. Rekeying in Markham.
Replacement keys and fob programming for many makes, handled on our Markham car locksmith page.
Closer, latch and strike adjustments for plaza and office doors that no longer close and lock on their own.
Exit devices on Markham offices, clinics and plaza units must release freely from inside while locking securely from outside. We adjust rods and latch bolts, replace worn parts and correct doors that no longer latch after heavy use, without ever chaining or disabling an exit route.
A closer that slams, leaks oil or no longer pulls the door shut leaves business entrances unlatched at night and strains hinges and frames. We adjust closing speed and latch force or replace the closer, then test that the door closes and locks on its own from fully open.
On outward-opening rear doors common in Markham industrial units, the latch sits exposed in the gap at the frame. A steel latch guard covers that gap, and security studs stop the door being lifted off its hinges, without changing how staff use the door.
Restricted keyways control who can copy your keys, which helps businesses with frequent staff changes and homeowners who have lost track of copies. We explain which of your existing locks can accept a new cylinder and which need replacement before recommending an upgrade.
GTA Lockman Mobile Locksmith Services helps with home, business and vehicle locks in Markham. Tell us whether you need a lockout service, rekeying, lock repair or replacement, and we will confirm the work and scheduling.
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Free quote over the phone. We come to your home, business or car anywhere in the GTA.
Call (647) 955-3277