Five DIY Security Upgrades Every Homeowner Can Tackle This Weekend

From replacing an old cylinder lock to securing a side gate, simple DIY upgrades can help improve everyday home security – and many can be completed without calling in a professional.

Home security doesn't always require expensive alarm systems or major renovations. In many cases, a few practical upgrades can make a noticeable difference to everyday peace of mind, while giving homeowners greater confidence in the security of their property.

Smith & Locke has highlighted five straightforward DIY security improvements that can typically be completed over the course of a weekend using readily available hardware and basic tools.


1. Replace an older cylinder lock

If your door lock has become worn, difficult to operate or you've recently moved home, replacing the cylinder is one of the simplest security upgrades you can make. Smith & Locke's 3 Star Euro Profile Cylinder Locks are designed for straightforward installation, making them an ideal choice for confident DIYers looking to upgrade front or back door security without the cost of a locksmith.


2. Install a key safe

A wall-mounted key safe provides a secure place to store a spare key for trusted family members, neighbours, carers or house sitters. It offers convenient access when needed while helping to avoid hiding spare keys in less secure locations.


3. Fit a door chain

A door chain adds an extra layer of reassurance by allowing homeowners to partially open the door before speaking with visitors. It's a simple addition that can be fitted to many existing timber doors using only basic hand tools.


4. Fit a window restrictor

Window restrictors help improve both security and safety by allowing windows to remain partially open for ventilation while limiting how far they can be opened. They're particularly useful in family homes and on upper floors.


5. Secure your side gate

Side gates are often one of the main access points to a garden or rear entrance. Fitting a sturdy hasp and staple with a weather-resistant padlock is a straightforward way to help deter opportunistic access while protecting sheds, garages and outdoor spaces beyond.

Many of these improvements require only basic DIY skills and can often be completed in under an hour, making them accessible projects for homeowners looking to improve security without taking on a major renovation.


Smith & Locke products are available from Screwfix, offering practical, durable and affordable security solutions designed to help homeowners tackle everyday security upgrades with confidence.


About Smith & Locke

Smith & Locke is a practical brand that delivers security solutions designed to protect what matters most. From cylinder locks and padlocks to fire door hardware and security accessories, every product is built to be straightforward, durable and affordable – giving customers complete peace of mind.

About Smith & Locke

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