Changing Locks When Moving Into a New Home

Why You Should Change Locks on Move-In Day

Previous owners, old tenants, real estate agents, contractors, and cleaning crews may all have copies of your new home's keys. A 2024 Canadian home security survey found that 40% of homebuyers do not change their locks after purchase — leaving a significant security gap. Changing locks is one of the simplest and most effective things you can do on day one.

For Montreal renters, the situation is slightly different. Quebec's Civil Code requires landlords to provide working locks, but you can request a lock change at your own expense. Always get written permission from your landlord first, and offer them a copy of the new key — they are legally entitled to access for emergencies and maintenance.

Lock Change Costs: DIY vs. Montreal Locksmith

Replacing a deadbolt yourself costs $30–$80 per lock at stores like Rona, Home Depot, or Canadian Tire. Standard residential deadbolts from Schlage or Weiser take about 15 minutes to install with a screwdriver. For a typical Montreal home with a front door and a back door, budget $60–$160 for DIY.

Hiring a Montreal locksmith costs $100–$200 per lock including parts and labor. If your home has older or non-standard lock hardware — common in century-old Plateau and Outremont homes — a locksmith can match or adapt the new lock to the existing door prep without damage. Mobile locksmiths like Serrurier Montréal or Pop-A-Lock offer same-day service.

Smart Locks: A Modern Alternative for Montreal Homes

Smart locks eliminate the key-copy problem entirely. Models from August, Yale, and Schlage let you issue digital access codes that can be revoked instantly. This is particularly useful if you have dog walkers, cleaners, or contractors coming in and out after your move.

For Montreal condos, check with your syndicat (condo board) before installing a smart lock — some buildings require uniform lock hardware on unit doors. If you are renting, a smart lock that fits over the existing deadbolt (like the August WiFi Smart Lock) lets you upgrade without altering the door, keeping your landlord happy.