Window Security Bolts

Discreet Security for Casement and Sash Windows

Window security bolts offer a reliable, unobtrusive solution for securing wooden casement and sash windows. Designed to be fitted into the frame or sash, they provide an additional locking point, ideal for ground-floor or vulnerable windows.

These bolts are operated via a key or thumbturn escutcheon, making them perfect for residential security without compromising on aesthetics. Available in a range of finishes and sizes, they're an ideal upgrade or retrofit for older wooden windows.

✅ Key Features:

• Suitable for timber casement or sash windows

• Installed flush into the window frame or sash

• Operated by key or thumbturn escutcheon (sold separately)

• Finishes include brass, chrome, satin chrome, and white

• Enhances security without visible bulk

• Ideal for heritage, traditional, and modern homes

• Comes with strike plate and fixings

📘 FAQs – Window Security Bolts

❓ What is a window security bolt?

A window security bolt is a concealed locking bolt that fits into the window frame or sash and is operated by a key or thumbturn, providing discreet security.

❓ Are they suitable for sash or casement windows?

Yes, security bolts can be used on both sash and casement windows, particularly wooden ones, to secure them shut and prevent forced entry.

❓ Do these bolts come with keys?

The bolts themselves do not include a key or thumbturn. These need to be purchased separately as escutcheons, depending on your preferred operation.

❓ Are they visible when installed?

No – they are morticed into the window, so only the escutcheon (the keyhole or thumbturn) is visible, making them ideal for period properties or clean aesthetics.

❓ Can I install these on uPVC or metal windows?

Security bolts are best suited for timber windows. For uPVC or aluminium frames, consider using dedicated window locks or restrictors.

❓ How many bolts should I use per window?

For optimal security, one bolt per sash or opening leaf is recommended. On larger windows, you may opt for two – one at the top and one at the bottom.

❓ Are they easy to fit?

They require precise drilling and morticing, so DIYers with experience can install them, but professional fitting ensures the cleanest result.