Are Your uPVC Windows Really Secure? Common Weak Points to Watch For
When it comes to home security, most of us focus on doors, alarms, and cameras—but what about your windows? Specifically, uPVC windows, which are widely used in homes across Surrey, Hampshire and Berkshire due to their affordability and energy efficiency.
However, even modern uPVC windows can become security risks if they’re poorly installed, aging, or damaged. In this guide, we’ll help you identify the most common weak spots in your uPVC windows—so you can take action before something goes wrong.
Why upvc window security matters
Windows are one of the most common entry points for burglars. A weak lock, warped frame, or cracked glazing can make it much easier for an intruder to force their way in. Even if you’ve locked up, outdated or damaged components can compromise your home’s overall security—and potentially impact your insurance coverage.
Common weak points in uPVC windows
Worn or faulty window locks
Many older uPVC windows are fitted with basic or outdated locking mechanisms that no longer provide a high level of security. If your window lock is:
- Stiff or jammed
- Loose or wobbly
- Difficult to turn
…it may no longer be functioning properly. Multi-point locking systems are now the standard for secure windows. If yours doesn’t have one, it’s worth upgrading.
Rocks Locks can service or upgrade faulty uPVC window locks to keep your home secure and insurance-compliant.
Misaligned or warped frames
uPVC frames can warp over time, especially if exposed to extreme temperatures or UV damage. A misaligned frame can:
- Prevent the lock from engaging properly
- Create small gaps that can be pried open
- Compromise energy efficiency
If you notice difficulty closing or locking your window fully, it’s time to get it checked.
Cracked or broken glazing
Even a small crack in a window pane weakens the entire structure and presents an easy access point for thieves. Damaged glazing also affects insulation and can allow moisture into your home.
Good news! You don’t need to replace the whole window.
Rocks Locks offers single-unit uPVC glazing repairs, saving you time and money. We replace only the cracked unit, restoring both your security and your view.
Loose or missing beading
Beading holds the glass securely within the uPVC frame. On some older models, it’s externally fitted—meaning it can be popped out from the outside, allowing the glass to be removed.
If your window has external beading, speak to a locksmith about upgrading to an internally beaded unit or securing the current setup with tamper-proof fittings.
Lack of window restrictors
While not always considered a security measure, window restrictors can stop opportunistic intruders from climbing in through an open window—especially on ground floors. They also provide peace of mind for families with young children.
How Rocks Locks can help
At Rocks Locks, we specialise in repairing and securing uPVC windows for homeowners and tenants in Camberley and across Surrey, Hampshire and Berkshire.
Here’s what we offer:
- Window lock upgrades
- Realignment of warped frames
- Single-unit glazing repairs for cracked panes
- Installation of security hardware like restrictors and sash jammers
- Free security surveys to assess your home’s vulnerabilities
Don’t wait for a break-in to fix your windows
Being proactive with your window security can help protect your family, belongings, and peace of mind. Whether you’ve noticed a cracked window, a stiff lock, or just want a professional opinion, Rocks Locks is here to help.
Call Stuart today on 07900 335525 to book your free window security check, or to learn more about our uPVC window repair and upgrade services.