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Home Safety & Fire Protection · Accessories & Add-ons

Safes & Lockboxes: What Else You'll Need

By the Nest & Yard editorial teamUpdated 2026-08-094 min read

Our pick: the Master Lock Key Safe, 5401EURD, Wall Mounted, Medium, Strong Outdoor Weather Resistant Construction, Mounting Hardware Included — the best Safes & Lockboxes we tested, from £15.99.

Protecting your valuables requires more than just a safe itself; ensuring it’s properly installed and maintained is crucial for long-term security. This guide explores the essential accessories and supplementary products often overlooked when purchasing a safe or lockbox, covering everything from mounting hardware and weatherproof cases to replacement keys and digital access solutions – items you'll want to consider alongside your primary investment. We delve into commonly needed extras that can significantly enhance the overall protection and convenience of your secure storage unit.

See the full range in Safes & Lockboxes.

£15.99

Pros

  • Well-known, widely reviewed lock brand
  • Weather-resistant aluminium build for outdoor mounting
  • Mounting hardware included for immediate fitting

Cons

  • Set combination dial only, no app or digital backup
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CDC Digi Lock Key Safe, Wall Mounted Key Box, Combination Lock Box, Outdoor Waterproof and Security Key Cabinet
Best Budget

#2 Pick

CDC Digi Lock Key Safe, Wall Mounted Key Box, Combination Lock Box, Outdoor Waterproof and Security Key Cabinet
Rated 4.6 out of 5 stars (5,386)
  • Holds multiple keys
  • 1 year

£9.99

Pros

  • Weather-resistant zinc alloy body for outdoor mounting
  • Combination lock holds several spare keys
  • Budget-friendly entry point into keyed access safes

Cons

  • Combination dial is smaller and fiddlier than premium key safes
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Pros

  • Accredited under the Police Preferred Specification scheme
  • Anti-bump solenoid with auto-lockdown after failed PIN attempts
  • Wall and floor fixing points included for permanent mounting

Cons

  • 8-litre capacity suits documents and valuables rather than bulky items
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Master Lock Certified Key Safe, Wall Mounted, Medium 105 x 132 x 43mm, Outdoor Key Lock Box
Best Value

#4 Pick

Master Lock Certified Key Safe, Wall Mounted, Medium 105 x 132 x 43mm, Outdoor Key Lock Box
Rated 4.6 out of 5 stars (3,961)
  • Holds multiple keys
  • 2 years

£30.99

Pros

  • Weatherproof housing rated for permanent outdoor use
  • Large cavity holds multiple keys or a fob
  • Resettable 4-digit combination, no app or batteries needed

Cons

  • Basic mechanical lock, no smart/Bluetooth access option
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FAQ

I've just bought a new safe – what should be inside the box?

Typically, you’ll find the safe itself, an instruction manual for installation and operation, and possibly some felt pads to protect the interior contents. Some safes may also include a small set of keys or a basic tool kit for minor adjustments.

My safe came with a key blank – can I make my own?

While it’s possible to purchase key blanks online, you'll need to take your safe’s serial number and dimensions to a locksmith. They will then cut a key specifically designed for your model; attempting this yourself could damage the lock.

What kind of lubricant should I use on my safe's hinges and locking mechanism?

Specifically formulated silicone-based lubricants are recommended for safes, as they won’t attract dust or gum up the mechanisms like oil-based products. Avoid WD40 – it can damage the internal components.

I need to secure my safe to the floor – is that included?

Generally, a floor plate or mounting kit isn't standard and needs to be purchased separately. These kits vary in design depending on the floor type (concrete, wood) and usually include bolts and fixings.

What about shock absorbers for my safe? Do they really help?

While not essential, shock absorbers can protect contents from minor vibrations or bumps. They’re often a separate purchase, particularly beneficial for safes in areas prone to movement.

I'm worried about dust build-up inside my safe – what can I use?

Felt pads are the most common and effective solution for lining the bottom of your safe and preventing dust accumulation. These are often included, but thicker or more durable pads may need to be purchased separately.

My safe has a digital keypad - do I need a replacement battery?

Digital keypads require regular battery replacements – typically every 1-2 years depending on usage. Check the manufacturer’s recommendations for compatible battery types.

I want to add extra security – can I install a secondary lock?

Adding a secondary locking mechanism is possible, but requires careful consideration of the safe's construction and the added weight. Consult a locksmith or security specialist before attempting this.

What if my safe needs servicing? Who do I contact?

Service typically falls under the manufacturer’s warranty terms. Contact the manufacturer directly to initiate any service requests – details are usually found in the accompanying documentation.

Are there any specific tools I need for installing a floor plate?

You'll likely require a drill with appropriate bits for concrete or wood, plus a socket set and potentially a hammer. Always ensure you have adequate space and stability during installation.

In depth

A significant portion of the initial cost of a safe or lockbox will undoubtedly cover the unit itself. However, to ensure optimal security and longevity, alongside the fundamental investment, several ancillary items frequently become necessary – often overlooked during the purchasing process. These include robust hinges, durable mounting hardware appropriate for your chosen installation method, and potentially tools for adjusting and maintaining the locking mechanism. Many safes arrive with basic hinge sets; however, upgrading to heavier-duty, reinforced hinges, particularly for larger models or those intended for high-risk environments, is highly recommended. This not only enhances the overall structural integrity but also mitigates potential weaknesses exploited by determined individuals. Similarly, the supplied mounting hardware might be inadequate for certain floor types or wall constructions. Invest in a set of appropriately sized and robust anchors – either self-drilling concrete anchors for masonry walls or heavy-duty screws and fixings designed for wood – to guarantee a secure and stable installation.

Beyond the immediate mechanical elements, consider the ongoing maintenance requirements. Lubrication is crucial for smooth operation of the locking mechanism and hinges. A small supply of high-quality silicone grease specifically formulated for locks and moving parts will significantly reduce friction, prolong the lifespan of the safe’s components, and prevent noisy operation. Furthermore, a set of fine tools – including pliers, screwdrivers (both Phillips head and flathead), and potentially a small hacksaw – will prove invaluable for minor adjustments, repairs, or the occasional disassembly for cleaning. It's wise to have these readily available rather than relying on sourcing them separately. Don’t forget protective gloves; working with metal and securing heavy safes can be physically demanding, and protecting your hands is paramount.

Accessing your safe effectively often depends on its locking mechanism. While most safes come with a key, a spare key or two – stored securely in a separate location away from the safe itself – provides crucial backup in case of loss or damage to the original. Consider also obtaining a locksmith's copy of the key; this offers an additional layer of security and ensures you won’t be reliant solely on the manufacturer’s key duplication service, which can sometimes have delays. Furthermore, if your chosen safe incorporates electronic locking technology, familiarize yourself with its operational instructions thoroughly. A basic understanding of battery replacement procedures – crucial for maintaining functionality – is essential, along with a readily accessible supply of appropriate batteries (typically AA or AAA).

Fire protection is another critical consideration, particularly for safes intended to store valuables. While some safes boast fire-resistant ratings, the effectiveness of this protection diminishes over time. Regular inspection and maintenance are key. This includes checking the integrity of the door seals – ensuring they remain tight and undamaged – as well as verifying that any internal components (particularly electronic locking systems) are functioning correctly. Some manufacturers offer periodic fire resistance testing services; although these incur an additional cost, they provide valuable reassurance regarding the safe’s ongoing protective capabilities. A small fire extinguisher, suitable for combating contained fires, should always be kept nearby, regardless of the safe's fire rating.

Finally, think about long-term security considerations beyond the immediate physical protection offered by the safe. Regularly reviewing your security practices – including reinforcing door and window locks, installing motion-activated lighting, and being vigilant about suspicious activity – can significantly reduce the risk of burglary. Consider investing in a robust surveillance system to monitor the area around your safe’s location; this acts as an additional deterrent and provides valuable evidence should an incident occur. Regularly changing key codes for electronic locking systems is also advisable, especially if you suspect unauthorized access or have moved locations. Implementing these supplementary security measures complements the safe's protective function, creating a layered approach to safeguarding your possessions.

The Nest & Yard editorial team

Written and reviewed by our UK-based team of home improvement and gardening writers, who research specs, pricing and customer reviews before every recommendation. Reviewed and updated on 2026-08-09.

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