Electric Strike Repair Toronto: Apartment Buzzer Won't Unlock the Door? (2026)

We get this call every week from small walk-up buildings, condo lobbies and offices across Toronto. The story is almost always the same. The buzzer used to work, then it started working "sometimes", and now nobody can get in unless someone comes down to open the door by hand. Couriers leave, visitors call from the sidewalk, and eventually a tenant wedges the door with a folded flyer. That last part is the real problem: a propped entry door is a security gap for the whole building.

The good news is that most buzz-in failures are not a sign that the entire intercom system has to be replaced. In our experience the most common causes are a strike that has worn out, a keeper that is binding because the door has sagged, a tired power supply, or a loose connection in the wiring. Those are repairs, not renovations. A trained technician with a multimeter can usually tell within the first visit which part has failed and whether it makes sense to fix or replace it.

This guide walks through how the system works, the eight problems we find most often, what a property manager or owner can safely check before calling, and when it is time for a professional. If you would rather skip the reading, call 647-951-3510 and describe what you hear when someone presses the buzzer. That one detail tells us a lot.

Inside the building, egress should never depend on the strike. The strike only controls entry from the outside. Anyone inside must be able to leave with a single motion on the lever or panic bar, with no key and no button. If your door has been set up so people need to press something to get out, call us so we can review it, because that is a safety problem, not just an inconvenience.

Related Problems That Look Like a Strike Failure

Sometimes the strike is fine and the real issue is the door. A heavy lobby door with a worn closer slams and pushes the latch hard into the keeper. A damaged frame can shift the keeper out of line. Worn pivots or hinges let the door drop at the latch side. On glass entrances, a failing floor pivot does the same. We look at the whole door, because a new strike on a door that is out of alignment will fail again.

If your building uses magnetic locks instead of a strike, the symptoms and fixes are different. Our maglock and electric strike troubleshooting guide compares the two. For buildings planning a bigger change, see our notes on condo door replacement rules in Toronto and barrier-free door requirements, which often come up when an entrance gets a push-button opener at the same time.

For houses and small multiplexes with a single front door, a front door security upgrade or a smart lock is often simpler than a full buzz-in system. And if the whole entrance is tired, a repair vs replacement assessment can save money in the long run.