Best Door & Window Security UK (2026) — Page 2
Door chains, window locks and security bars.

#7 Pick
Amazon Basics Black, 69.8 cm Adjustable Security Bar for Sliding and Hinged DoorsRated 4.5 out of 5 stars (3,144)
- Steel
£19.94
Pros
- Adjustable length suits both sliding and hinged doors
- Rubber tips protect flooring and door frames
- Sturdy steel bar resists forced entry
Cons
- Bulkier to store than a slim door chain

#8 Pick
2 x UPVC Window Cable Restrictor Lock with Screws — Child & Baby Safety Security Wire, Tested to British Standards, WhiteRated 4.6 out of 5 stars (2,829)
- uPVC & Steel Cable
£13.40
Pros
- Tested to British Standards for child window safety
- Twin pack covers two windows in one purchase
- Simple screw-fit installation with keys supplied
Cons
- Cable needs periodic checks for wear and tension

£14.99
Pros
- Certified to the TS003 British security standard
- More robust design than a standard door chain
- Polished chrome finish suits most front doors
Cons
- Newer listing with a limited review history so far

£16.55
Pros
- Dual-purpose restrictor works on both windows and doors
- Keeps a ventilation gap while limiting how far it opens
- Simple screw-fit installation
Cons
- Cable restrictors offer less security than a dedicated lock

£27.96
Pros
- Well-reviewed German security brand
- Restrains against forced entry while allowing visitor checks
- Simple screw-fit installation
Cons
- Chain length is fixed, not adjustable

#12 Pick
4 Pack Sash Jammer Blocker — Door & Window Lock Anti-Theft Security for PVC/uPVC Windows and Doors, WhiteRated 4.5 out of 5 stars (1,316)
- Zinc Alloy
£8.99
Pros
- Durable zinc alloy construction resists forcing
- Pack of 4 covers multiple windows or doors
- Includes fixing screws for straightforward fitting
Cons
- Twist-lock mechanism has no key, so anyone can release it