5 Most Common Commercial Door Problems in Toronto (And How to Fix Them)

Your commercial entry door is the first thing customers interact with when visiting your business. When it functions perfectly, it goes unnoticed. But when a door starts slamming, dragging, or failing to lock, it immediately becomes a safety hazard, an energy drain, and a security risk.

At DoorWin Services, we respond to hundreds of service calls across Toronto and the GTA. Based on our experience, here are the top 5 most common commercial door problems and what it takes to fix them.

1. The Door Slams Shut or Closes Too Slowly

If your door slams hard against the frame or takes forever to close, the culprit is almost always the door closer. This hydraulic device controls the speed and force of the door.

• The Cause: Leaking hydraulic fluid, worn-out O-rings, or extreme temperature changes (very common in Canadian winters).
• The Fix: Sometimes, the closer just needs a simple adjustment using its control valves. However, if you see oil leaking from the device, it cannot be repaired—the door closer must be replaced to ensure safe operation.

2. The Door is Dragging on the Threshold

A door that scrapes against the floor or threshold not only damages your flooring but makes it difficult for customers (especially those with accessibility needs) to enter.

• The Cause: Worn-out pivots, sagging hinges, or a shifting building foundation. Commercial aluminum glass doors are heavy, and over time, the bottom pivots bear the brunt of the weight.
• The Fix: We lift the door, inspect the continuous hinges or pivot sets, and replace the worn bearings. In some cases, adjusting the top pivot or installing a new threshold is required.

3. Locks and Panic Bars Are Sticking

Security is paramount. If your key is getting stuck, or if the interior crash bar (panic hardware) is jammed, you are dealing with a severe fire safety and security issue.

• The Cause: Misaligned strikes, worn cylinder pins, or general mechanical failure within the panic bar mechanism due to high traffic.
• The Fix: Our locksmith services can realign the locking mechanism, lubricate or replace the lock cylinder, or install brand-new, code-compliant panic hardware to ensure smooth, safe exits.

4. Drafts and High Energy Bills

Are your employees complaining about cold drafts near the entrance? Is your heating bill unusually high?

• The Cause: Flattened, torn, or missing weatherstripping and door sweeps. Over time, the rubber and brush seals degrade.
• The Fix: Installing heavy-duty commercial weatherstripping and a new bottom door sweep. This inexpensive maintenance step drastically improves energy efficiency and keeps debris and pests outside.

5. Cracked or Fogged Door Glass

Storefront glass takes a beating from weather, accidental impacts, and unfortunately, vandalism.

• The Cause: Failed seals (which cause foggy, hazy glass) or direct impact breaking the safety glass.
• The Fix: We provide quick glass replacement services. If the glass is shattered, we offer 24/7 emergency board-up services to secure your business until the new custom-cut tempered or laminated safety glass arrives.

Don't Wait for a Complete Failure

Ignoring a minor door issue usually leads to more expensive repairs. A slamming door can shatter the glass; a dragging door can break the locking mechanism. Regular planned maintenance is the best way to extend the lifespan of your commercial doors and hardware. Need an immediate fix? Contact us today for a fast estimate.