A lot of GTA homes have the same front entrance: a solid door, a good deadbolt, and a tall pane of decorative glass on one or both sides. Sidelights let light into the front hall and make the entrance look finished. They also sit about a hand’s width from the lock.
That distance is the problem. If someone can break the sidelight and reach the thumb turn, the quality of the deadbolt stops mattering.
Quick Answer: Are Door Sidelights a Security Risk?
Yes. Standard sidelight glass can be broken quickly, which lets an intruder reach through and unlock the door from the inside. The most effective fix is to make the glass itself resistant to breaking, so the lock and door can do their job. Frosted film, curtains or decorative inserts do not stop this method.
How the Reach-In Break-In Works
The method is simple, which is why it is common:
- The intruder breaks the sidelight, a glass panel in the door, or a transom low enough to reach.
- They reach through the opening to the deadbolt thumb turn or door handle.
- They unlock the door and walk in through the front entrance.
It takes seconds, and from the street it can look like someone letting themselves into their own home. A homeowner who spent money on a Grade 1 deadbolt and a reinforced strike plate is no better protected, because the door was never forced.
Glass in and Around Doors: Where to Look
- Sidelights on one or both sides of the front door
- Glass panels in the door itself, including half-lite and full-lite doors
- Transom windows above the door, especially on lower entrances
- Side and garage entry doors with glass panes
- French doors and patio doors, where the lock is often next to a large pane
Any glass within roughly an arm’s reach of a lock or handle creates the same risk.
Common Fixes and Their Limits
Double cylinder deadbolts
A double cylinder deadbolt needs a key on both sides, so reaching through does not help. The trade-off is fire safety. If the key is not in the lock or nearby, that door is not a quick way out in an emergency. Ontario’s Office of the Fire Marshal advises that everyone in a home should be able to get out quickly using a home fire escape plan, and a keyed interior lock on the main exit works against that.
Privacy film and decorative glass
Frosted or textured glass hides what is inside. It does nothing to stop the glass from breaking.
Replacing sidelights with solid panels
This removes the risk and the light. Most homeowners chose sidelights for a reason and do not want a dark front hall.
Securing the glass
Making the glass itself hard to break keeps the light, keeps a normal single cylinder deadbolt for easy exit, and removes the reach-in method. Toronto police have included strengthening the glass on windows and doors in their published prevention tips.
Securing Sidelights With Strikeglass
Strikeglass residential security glazing is built to resist repeated strikes from hammers, crowbars and similar tools. On a sidelight or door panel, that means an intruder cannot create the opening they need to reach the lock.
- It is bonded onto the existing glass, so the entrance looks the same.
- Decorative and frosted sidelights can be protected without changing the design.
- You can keep a standard single cylinder deadbolt, which keeps the front door a fast exit in a fire.
Because the front entrance is the first thing people see, appearance matters.
A Complete Front Entrance Checklist
- Grade 1 deadbolt with a reinforced strike plate and long screws into the framing
- Secure the sidelights, door glass and any transom within reach of the lock
- Video doorbell or camera covering the entrance
- Exterior lighting on a timer or motion sensor
- Contact sensor on the door and glass break detection in the front hall
- Keys and key fobs stored away from the entrance, in a Faraday pouch for car fobs
Frequently Asked Questions
Can a burglar break a sidelight and unlock the door?
Yes. This is one of the most common reasons door sidelights are considered a security weakness. Breaking the glass gives access to the deadbolt thumb turn from inside.
Should I use a double cylinder deadbolt with sidelights?
It stops reach-in entry, but it can slow your exit in a fire if the key is not immediately available. Securing the glass lets you keep a standard deadbolt that opens without a key from inside.
Does frosted glass make sidelights more secure?
No. Frosted or decorative glass adds privacy but breaks as easily as clear glass.
Can Strikeglass be added to decorative sidelights?
Yes. It is installed with the existing sidelight, so decorative, leaded and frosted designs keep their look.
Are glass front doors safe?
A glass front door is only as secure as its glass. With impact-resistant glazing and a proper lock, a glass door can be as secure as a solid one.