Best Door & Window Security UK (2026)
Door chains, window locks and security bars.
#1 Pick
TIMCO Door Chain Security Lock — Allowing Reduced Opening Angle of the Door, Polished Chrome, 85mmRated 4.5 out of 5 stars (421)
- Chrome-plated Steel
£6.49
Pros
- Polished chrome finish suits most front doors
- Restricts door opening for safer visitor checks
- Simple screw-fit installation
Cons
- Chain-only lock, not a substitute for a deadlock
#2 Pick
x2 Sash Jammers for uPVC Windows & Doors — Extra Security Window & Door Locks, Anti-Intruder Jammer Locks, WhiteRated 4.4 out of 5 stars (1,567)
- uPVC-compatible Plastic
£8.99
Pros
- Pack of 2 covers a door and a window
- Prevents uPVC frames being forced open
- No specialist tools needed to fit
Cons
- Designed for uPVC frames, not suited to timber windows
#3 Pick
Sliding Sash Lock DGBRSM Black Sliding Window Sash Locks with Mounting Screws for Double Hung WindowsRated 4.2 out of 5 stars (213)
- Zinc Alloy
£7.99
Pros
- Cam-action hook locks double-hung sash windows firmly
- Includes mounting screws for straightforward fitting
- Compact black finish blends with most frames
Cons
- Sold as a single lock, may need multiple per window
#4 Pick
SOL 2pk Chrome Door Chains for Front Door Lock Security Restrictor Chain for Home SafetyRated 4.3 out of 5 stars (178)
- Chrome-plated Steel
£9.99
Pros
- Pack of 2 chains suits front and back doors
- Durable metal hardware with chrome finish
- Tamper-resistant sliding latch design
Cons
- Screws included are basic, may want to upgrade for solid doors
#5 Pick
8 PCS Sash Jammers for uPVC Doors, Sash Window Security Locks with 16 Screws, Window Locks & Latches for uPVC & Wooden WindowsRated 4.3 out of 5 stars (156)
- uPVC & Wood-compatible Plastic
£14.99
Pros
- 8-pack covers multiple doors and windows in one order
- Works on both uPVC and wooden window frames
- Includes all mounting screws
Cons
- Basic finish compared to branded single-unit jammers