Many business owners focus their security efforts on the obvious places. We tend to look at main entrances, front windows, and the reception area. But there are other entry points that often go unnoticed until something goes wrong. These areas may seem small or harmless, yet they can provide the easiest way for someone to gain access without permission. Securing a commercial space means looking at every angle. We need to inspect less-visible parts of the property just as closely as the ones out front.
Side and Rear Service Doors
Most buildings in Calgary include side or rear service entrances for deliveries, garbage disposal, or staff access. These doors don’t face the street, so they rarely get the same level of attention. However, this lack of visibility makes them perfect for unauthorized entry. We often find these doors propped open during loading times or fitted with old locks that are no longer reliable.
To reduce the risk, use a reinforced frame and an internal locking bar. Keep the door closed when not in use. Surveillance facing these access points adds another layer of deterrence. In many cases, our commercial locksmith services in Calgary include replacing vulnerable door hardware with tamper-proof solutions. That simple update can prevent damage and loss before it happens.
Rooftop Access and Maintenance Ladders
Sometimes, entry doesn’t come from ground level at all. Buildings with accessible rooftops and maintenance ladders need special attention. HVAC crews, telecom technicians, and roofers often use these routes. Yet once a person is on the roof, they may find an unsecured hatch, skylight, or ventilation shaft that leads inside.
Always restrict roof access with locking cage systems or ladder enclosures. Secure all rooftop hatches with commercial-grade locks that can’t be opened from the outside. Place clear signage stating restricted access. Some business owners overlook this step because they assume no one would climb that high. However, it’s often exactly why someone would attempt it.
Shared Walls with Neighboring Units
In commercial strips or malls, it’s common to share walls with other businesses. While these walls seem secure, we’ve seen cases where storage rooms, crawlspaces, or hidden wall panels connect units. One poorly secured door between tenants can pose a risk to multiple businesses.
Before moving in, inspect these shared barriers. In buildings with drop ceilings, ensure there are no gaps above the wall between units. If access exists for maintenance purposes, ask that it be locked and monitored. Our team often recommends adding interior door alarms or security contacts in areas with shared boundaries. This proactive step is especially useful in mixed-use buildings where tenant turnover is high.
Internal Stairwells and Utility Rooms
Some buildings include locked stairwells or utility rooms that connect to more than one floor or space. These aren’t usually staffed or watched closely. In older buildings, locks on these doors can be outdated, or even broken. That means someone who gets into one area may gain access to several others without much effort.
Each door in a stairwell or utility path should have its own lock. We suggest using restricted key systems that prevent duplication without approval. Furthermore, access should be limited to specific staff only. Placing security plates over latch bolts also prevents tampering. In secure environments, even a janitor’s closet can lead to bigger problems if not properly handled.
Unused Loading Docks and Bays
Loading docks are busy during peak business hours but often sit idle overnight or for long periods in non-retail businesses. Many facilities no longer use their docks regularly but keep the bay doors accessible. We’ve come across cases where loading dock doors are left slightly open for ventilation or have broken latches that were never repaired.
We recommend inspecting dock entries at least once per week. Replace standard latches with heavy-duty deadbolts or bar locks. If the bay door isn’t in use, consider sealing it or blocking interior access. As an added measure, schedule routine checks by your building manager or assigned staff. Entry through an unused dock often happens without damage, making it hard to spot right away.
Connected Underground Parkades
Underground parking facilities connect to dozens of buildings throughout Calgary. That includes retail, office, and residential spaces. Many have multiple entry points, including elevators, stairwells, and service hallways. These routes often bypass front desk security entirely.
Ensure every access point from the parkade to your business is locked with commercial-grade hardware. If your unit includes a back entrance from the parkade, treat it like a front door. We provide commercial locksmith services near you that help upgrade these overlooked locks to secure electronic access or high-security keys.
Vents, Crawlspaces, and Underfloor Access
Older buildings and industrial spaces often include crawlspaces, floor hatches, and oversized ventilation ducts. Though not traditional entry points, these spaces sometimes lead directly to sensitive areas. Unfortunately, they’re usually ignored during regular security checks.
Any crawlspace or underfloor hatch should be secured with locking hardware. In some cases, sensors can be installed to detect when these access points are moved. Keep them covered, locked, and labeled. We’ve seen theft cases where someone entered through a utility shaft because it was unguarded and wide enough to squeeze through. Don’t assume the size of the space will prevent someone from trying.
Tenant Storage Rooms or Shared Basement Spaces
Commercial buildings sometimes have basement rooms used by multiple tenants for seasonal storage or mechanical access. These rooms may be behind the main store, beneath an office, or off a common hallway. Often, they’re filled with items that rarely move, making them an easy target for quiet entry.
Use assigned keys and tracked access when sharing a space. Keep all storage room entries locked at all times. If the building provides general access, install your own internal lock on your assigned space. More importantly, check the walls and ceilings. Some businesses find that the true vulnerability isn’t the door, but the wall panels or ceiling tiles connecting spaces.
Exterior Utility Boxes and Lockers
Power panels, telecom boxes, and irrigation lockers sit outside many buildings. These can contain switches or wiring connected to cameras, internet, or security panels. Once tampered with, the entire system becomes less effective. Surprisingly, many of these lockers still use basic padlocks or wafer locks that can be opened easily.
Switch to lock systems that use restricted keys or tamper-proof shields. Paint utility boxes the same color as the wall to draw less attention. We also suggest placing motion lights above any outdoor panel. Even small details like replacing rusted locks can make a big difference. When exposed boxes are overlooked, it can undo the hard work done elsewhere.
Bonus Tip: Review All Entry Points After Renovations
Construction, remodeling, or new tenant changes can shift the entire layout of a business. Walls get moved, new doors appear, or access routes change. After these updates, it’s important to walk through every part of the space again. What used to be a blank wall might now hide a panel or unmarked door.
Schedule a post-renovation walk-through. In many cases, we help with these reviews to check for areas that need upgraded locks or signage. The best way to prevent surprises is by creating a fresh access plan that reflects how the space functions now. If something feels off or too easy to access, trust that instinct and secure it properly.
For help reviewing any of these entry points, reach out through our Contact Us page to schedule a walk-through with JL Security. We’re here to help you find the weak spots before someone else does.
FAQs
What’s the easiest entry point to overlook in a commercial building?
Side doors and rooftop hatches are often ignored but can be used to gain access if left unsecured or unlocked.
How can I secure rooftop hatches on my business property?
Use a heavy-duty lock that can’t be accessed from the outside, and restrict ladder use with lockable cages or security panels.
Do parkade access doors need the same locks as front entrances?
Yes, because they can bypass visible security. These doors should have commercial-grade hardware and controlled access systems.
What should I do about unused loading bays?
Secure them with internal locks or sealing methods. Make sure the doors can’t be opened from outside, even slightly.
How often should I inspect these less-visible areas?
Inspect high-risk spots weekly, especially after holidays, tenant changes, or periods of low activity. Regular checks prevent long-term issues.