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GTA Lockman Mobile Locksmith Services · Newmarket
Locks for older Newmarket homes, newer subdivisions and Main Street businesses, from rekeying to full replacement.
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Authorized entry to your home, followed by a look at why the lockout happened and whether the lock needs attention.
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Learn more
GTA Lockman Mobile Locksmith Services works on Newmarket homes, townhouse communities, Main Street businesses and vehicles. The technician comes to you with the parts and tools to rekey, repair, replace and install locks at the door, and to cut and program car keys at the vehicle.
Newmarket mixes a historic downtown with established neighbourhoods and newer subdivisions, and the lock work differs between them.
The heritage buildings along Main Street combine storefronts at street level with offices or apartments above, and many have rear entrances off laneways or parking areas. That layout creates a few recurring jobs:
Heritage storefronts sometimes carry original hardware worth keeping. Where an old lock cannot be repaired, a replacement can usually be chosen to fit the existing door preparation.
Older Newmarket homes often have original or early replacement doors, side entrances and detached garages. Typical requests are deadbolts added to doors that only have knob locks, repairs to doors that have sagged, and rekeying after a purchase. A lock that works with the door open but binds when it is shut is an alignment problem, covered on deadbolt repair.

In the newer neighbourhoods, including those on the east and west edges of town, homes generally have builder hardware, attached garages and sometimes a keypad on the front door. New owners usually ask for:
In townhouse condominiums, the unit door is usually the owner's, while gates, mailboxes, common doors and garage entries belong to the corporation. Before changing a lock on a door you share with the community, check with the management office. For a suite or unit lockout, see apartment and condo lockouts.
Newmarket's winters bring the usual lock complaints: keys that will not turn in a frozen cylinder, deadbolts that stick as doors shrink and swell, and storm doors that stop latching. Do not pour hot water into a lock or use oil-based sprays; both make the problem worse later. See frozen or stiff door locks in winter.

Offices and retail units along Yonge Street, Davis Drive and the plazas near Upper Canada Mall, and industrial units elsewhere in town, use commercial hardware: narrow-stile storefront locks, steel doors, exit devices and master-keyed systems. Common work includes rekeying after staff turnover, key control for growing teams and access changes when a lease ends. See working with a commercial locksmith.
Car key replacement, fob programming and lockouts are done at the vehicle. Have the VIN, ownership documents and identification ready. See car key replacement and car lockout service.
Tell us the address, the door or vehicle involved, what is wrong, and whether you have a working key. For a lockout, have identification and proof of address available. We confirm timing when you call; our working hours are listed below.
We also work in Aurora, East Gwillimbury and Richmond Hill. See all service locations.
Keep reading
Yes. A small keyed-alike or master-keyed arrangement lets the business and the upstairs tenant each hold keys for the doors they need.
Yes. A small keyed-alike or master-keyed arrangement lets the business and the upstairs tenant each hold keys for the doors they need.
Often. Old locks can usually be repaired. Where one cannot be, a replacement is chosen to fit the existing door preparation.
Yes. Rekeying makes builder, trade and previous-owner keys stop working and gives you a known number of keys.
Usually, if the cylinders share a keyway. Locks on a different keyway may need a new cylinder.
The condominium corporation. The unit door is usually the owner's, but gates, mailboxes and common doors belong to the corporation.
Avoid hot water and oil-based sprays. Warm the key, try gently, and use a lock de-icer. If it keeps happening, the lock needs servicing.
Yes, including storefront locks, steel doors, exit devices and master-keyed systems.
The VIN, ownership documents and identification, plus any working key you still have.
★★★★★ 4.9 out of 5 from 463 Google reviews (September 2026)
GTA Lockman Mobile Locksmith Services is a mobile locksmith working on homes, businesses and vehicles across Toronto and the GTA, with more than 14 years in the trade. Every review is written by a customer on Google, where you can read them in full.
Areas served: Toronto, North York, Scarborough, Etobicoke, Vaughan, Richmond Hill, Markham, Stouffville, Newmarket, Mississauga, Brampton, Oakville, Milton, Halton Hills, Pickering, Ajax, Whitby, Oshawa, Uxbridge.

Describe the door, hardware and service address. Contact GTA Lockman Mobile Locksmith Services to confirm the scope and scheduling for your location.