Replacing the main door lock on your home or rental property isn’t something most people think about—until they absolutely have to. Whether you’re locked out, moved into a new place, or your lock is just worn down, the cost of replacement can vary depending on a few key factors.

The Average Cost of Replacing a Main Door Lock in Ontario

In Ontario, replacing a main door lock can range anywhere from $125 to $500 or more. The final price depends on several factors:

  • Lock Type:
    Basic doorknob locks cost less, while deadbolts, mortise locks, and smart locks are more expensive due to their added features and security.
  • Lock Grade:
    Locks are rated by grade (Grade 1 to 3) based on security and durability. Higher grades offer better protection but are pricier.
  • Brand:
    Well-known lock brands may cost more but can offer better reliability and compatibility with existing hardware.
  • Installation Complexity:
    Some door locks are easier to replace than others. If the locksmith has to drill or modify the door, labor costs go up.
  • Additional Features:
    Smart locks, remote access, and keypad features all increase the price.
  • Emergency or After-Hours Service:
    Calling a locksmith on weekends or after hours often means extra fees for urgent service.

Avoiding the Cost: Backups Matter

While it’s good to know what a replacement costs, preventing lockouts or key issues in the first place is even better—and cheaper.

One of the best ways to avoid needing a full lock replacement is by having a backup key. If your only key is lost, broken, or worn out, you could end up locked out or damaging the lock trying to force it. That’s when replacement or rekeying becomes unavoidable—and expensive.

At MiniFob, we offer quick and affordable key duplication services for main door keys, apartment keys, and even key fob copies. Having a working spare key on hand is a simple step that can save you a lot of time, stress, and money down the road.

Plus, keep in mind: if your current key is starting to bend or wear out, don’t wait. A damaged key can break off inside the lock and make the situation worse (and more expensive). Always make a copy while the key is still in good condition.

Looking for a Backup Key?

Whether you need extra keys for roommates, family members, or as an emergency spare, we’ve got you covered. Just drop by your local FobToronto or MiniFob location to get fast, reliable copies made on the spot.