Home Rekeying in Markham
We carry out home rekeying & lock changes for homes across Markham, from Unionville, Milliken and Cornell through to Greensborough. New home, lost key or a tenancy change — existing locks re-pinned to a new key at a fraction of replacement cost.
Planned subdivisions from the 1990s onward across Berczy and Cornell, the heritage main street at Unionville, and dense mid-rise around Downtown Markham. Knowing the housing stock matters: the right hardware for a 1960s side entrance in Unionville is not the right hardware for a post-2010 build, and fitting the wrong one wastes your money.
Corporate Markham is the most access-control-heavy submarket in the GTA. The requirement here is rarely a lock at all: it is credential management, server-room door position monitoring, and clean integration with an existing platform so that a departing employee loses building access the same hour their account is disabled. We work to the existing system rather than pushing a rip-and-replace. Unionville's heritage main street sits at the opposite extreme, where the constraint is preserving period-appropriate visible hardware.
We quote before dispatching to Markham, not after arriving. The figure you are given on the phone is the figure on the invoice, barring something we could not have known about.
Typical range: $35–$120 CAD per cylinder, plus service call. Ranges are typical for the GTA and depend on the door, the hardware and the time of day. We confirm the price before dispatching.
Where we work in Markham
We cover the whole municipality for home rekeying & lock changes, including Unionville, Milliken, Cornell, Cathedraltown, Berczy Village, Angus Glen, Thornhill (east), Box Grove and Greensborough — across the L3P, L3R, L3S, L3T, L6B and L6C postal areas. The main corridors we work are Highway 7, Woodbine Avenue, Warden Avenue, Kennedy Road, Markham Road, 16th Avenue and Steeles Avenue East.
Rekey on possession, always
This is the one piece of advice we give unprompted. Whatever assurances came with the sale, keys accumulate over years and nobody tracks them. The cost of rekeying is small and the certainty is complete.
It matters more on newer builds than people expect. Builders routinely key an entire phase to a small number of profiles so trades can move between houses, and that construction keying is frequently still in place at closing. In fast-built areas like Milton, Mount Pleasant and Vellore Village this is common.
Getting to one key
Most homes accumulate different keys for the front door, the back door, the side door, the garage and the shed. There is no reason for that.
Where the locks share a keyway, keying them alike is straightforward and inexpensive. Where they do not, swapping cylinders to a common keyway achieves the same result without replacing the locksets.
When replacement is better
- The lock is worn enough that the key drags or has to be jiggled
- It is a builder-grade lockset on an exterior door, where the grade is genuinely inadequate
- The finish is damaged or the lockset is loose in the door
- You want smart lock functionality, which rekeying obviously cannot provide
- You are rekeying because keys were copied without your knowledge, in which case the open keyway is the actual problem and a restricted cylinder is the fix
This page covers home rekeying & lock changes specifically in Markham. For the full technical detail — every option, every fault mode and the complete FAQ — see our main home rekeying & lock changes page.
Home Rekeying in Markham — questions
Do you cover all of Markham?
Yes — the whole municipality, including Unionville, Milliken, Cornell, Cathedraltown and Berczy Village, across the L3P, L3R, L3S and L3T postal areas and the rest. We also cover the surrounding York Region area and the neighbouring municipalities, so a job that sits on a boundary is not a problem.
How quickly can you get to Markham?
It depends on the time of day, where in Markham you are, and what is already in progress. We give you a realistic window when you call rather than an optimistic one, and we would rather tell you ninety minutes and arrive in seventy. For non-urgent work we will usually offer you a scheduled slot, which is cheaper than an emergency callout.
How much does it cost to rekey a house?
It is charged per cylinder plus the service call, so a typical home with three to five exterior locks is modest. Keying them all alike so you carry one key is normally included rather than extra. We quote the total on the phone once you tell us how many doors.
How long does rekeying take?
Roughly ten to fifteen minutes per cylinder, so a typical house is done well within an hour including testing every door with the new key.
Can all my house locks use the same key?
Yes in almost every case. If the locks share a keyway it is straightforward. If they are different brands, cylinders can usually be swapped to a common keyway at modest cost, which is still far cheaper than replacing the locksets. Front, back, side, garage and shed on one key is a normal request.