Sash Jammer Window & Door Lock

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This 4-pack of sash jammers offers a simple and affordable way to add an extra layer of security to uPVC windows and doors without the need for specialist tools or skills. Each unit fits over the existing sash handle mechanism to physically block it from being forced open, acting as a strong deterrent against opportunistic break-ins. Overall they represent good value for budget-conscious homeowners looking to bolster their home security quickly and easily.
Key Features & Specs
| Pack Size | Comes in a set of 4, suitable for covering multiple windows and doors in one purchase |
|---|---|
| Compatibility | Designed for PVC and uPVC framed windows and doors with standard sash-style handles |
| Installation | Tool-free fitting that slides or screws over the existing handle with no specialist knowledge required |
| Material | Durable plastic construction finished in white to blend with standard uPVC window frames |
| Security Function | Physically blocks the handle from rotating, preventing the window or door from being forced open from outside |
| Colour | White finish designed to complement most standard uPVC window and door frames discreetly |
| Use Case | Suitable for use on ground floor windows, back doors, and any accessible entry points as a secondary lock |
Best for: Homeowners and renters who want a quick, low-cost security upgrade for uPVC windows and doors without requiring a locksmith or complex installation.