Window Locks and Security Features Every Home Should Have

When it comes to home security, most people think about front doors, alarms, or CCTV. But windows are often the easiest target for break-ins—especially if they’re left unlocked or use outdated locks.

At Windows and Doors Newcastle, we’ve seen first-hand how proper window security can deter burglars and give homeowners real peace of mind.

In this guide, we’ll break down the most effective types of window locks and security features, explain how they work, and help you choose the right ones for your home.

Whether you live in a ground-floor flat in Jesmond or a detached house in Gosforth, securing your windows is essential.

Why Window Security Matters

• Most break-ins happen through windows, not doors
• Older windows often have weak or broken locks
• Insurance companies may require specific types of locks
• A secure home helps protect not just property—but your peace of mind

Even the best double glazing isn’t enough if your locks are weak or missing.

Key Types of Window Locks

Espagnolette Locks

Commonly found on modern uPVC and aluminium windows. Operated with a handle, these locks engage multiple points when turned, securing the window along its edge.

Best for:

• Casement and tilt-and-turn windows
• Modern homes and new builds

They’re reliable, discreet, and provide excellent security when combined with internal glazing beads.

Sash Window Locks

Sash stops or fasteners are designed for traditional sliding sash windows. They prevent the window from being opened past a certain point.

Best for:

• Period properties or Victorian homes
• Timber sash windows in conservation areas

Look for key-operated versions to meet insurance standards.

Lockable Window Handles

These handles come with built-in locks and keys, adding a layer of security even if the window is left partially open.

Best for:

• Bedrooms and bathrooms
• Upstairs rooms for child safety

Many insurance companies require these on accessible windows.

Screw Locks or Pin Locks

These are surface-mounted and manually operated, often used as an extra measure. They physically restrict movement and are commonly fitted to older timber windows.

Best for:

• Timber frames or older casements
• Secondary backup on vulnerable windows

Sliding Window Locks

Sliding windows need specific locks that prevent panels from being forced open. These are usually rail-based or track-based locks.

Best for:

• Modern extensions with sliding windows
• Balcony or garden-facing rooms

Check compatibility with aluminium frames or large glass units.

Other Window Security Features to Consider

Multi-Point Locking Systems

Found on many new uPVC and aluminium windows, these systems lock at multiple points with a single turn of the handle. The more points of contact, the harder it is to force open.

Best for:

• Ground-floor or street-facing windows
• Homes with security or insurance concerns

Internal Glazing Beads

Beading refers to how the glass is held in the frame. Older windows often have external beads, which burglars can remove. Internal beading prevents this.

Most modern windows fitted by Windows and Doors Newcastle use internal beads as standard.

Laminated or Toughened Glass

Even with great locks, weak glass is a risk. Laminated glass has a protective layer that holds it together if broken. Toughened glass is stronger and shatters into small, less dangerous pieces.

Best for:

• Lower-floor or side windows
• Homes in high-crime or exposed areas

Window Sensors and Alarms

These attach to the window and trigger an alarm if opened unexpectedly. Some connect to smart home systems.

Best for:

• Secondary protection
• Homes left empty for long periods

Window Restrictors

These limit how far a window can open, reducing the chance of intruders squeezing through—or children falling out.

Best for:

• Family homes with young children
• First-floor windows or shared access areas

How to Check If Your Windows Are Secure

• Handles lock with a key
• Frame shows no warping or gaps
• Glass is fitted internally
• You have visible locks on ground-floor windows
• Locks meet British Standard (BS 7950 or PAS 24)

If your windows are older than 15 years, it might be time to upgrade.

Tips for Improving Window Security

• Install locks that are visible from the outside—burglars often avoid obvious barriers
• Keep hedges and fences trimmed to avoid giving cover
• Close and lock all windows when leaving the house, even briefly
• Consider upgrading to windows with built-in multi-point locking

At Windows and Doors Newcastle, we always supply and fit windows that meet the latest security standards. We can also retrofit locks and advise on the most secure options for your home layout.

Final Thoughts

Window security is about more than just locking up at night. It’s about protecting your home, your family, and your belongings with smart, reliable solutions.

From sash locks to multi-point systems, there are effective options for every type of window and every type of home.

Need help assessing your home’s window security? Get in touch with Windows and Doors Newcastle for a free consultation. We’ll walk you through the best upgrades for your property—no pressure, just honest advice.

A secure home starts with secure windows. Let’s make yours safer today.