Published 25 September 2026
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Short answer. A key safe is the small wall-mounted box that lets carers, family and paramedics get in when the person inside cannot reach the door. Buy on accreditation, not on adjectives: the Supra C500 Pro is the police-preferred choice and the one many telecare services specify, while most boxes under ยฃ25 are convenience products that a determined attack opens quickly. Cheap is fine for a cleaner’s key on a low-risk door. For a vulnerable person’s front door key, it is not the place to save ยฃ40.
Why carers fit key safes
Care visits, telecare and falls response all run on the same problem: someone needs to get in without the occupant walking to the door. A key safe solves it without cutting a dozen keys, and community alarm services usually ask for one when they set up a personal alarm, so the responder they send can actually reach the person who pressed the button. If a council care package is being set up, ask them first: some services fit an approved key safe as part of the package.
The picks compared
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Read the accreditation, not the listing title
Search Amazon for a key safe and the phrase “police approved” appears on boxes at every price. Treat the phrase as decoration unless the product names its accreditation. The scheme that means something in the UK is Secured by Design, the police security initiative, backed by independent attack testing; the Supra C500 range is the widely specified product that carries it. A ยฃ10 box and a ยฃ70 box look similar in a photo. They do not behave similarly under a pry bar, and your home insurer may take a view on which one was protecting the key if there is ever a claim, so it is worth asking them.
The picks in detail
The one to fit for a vulnerable person: Supra C500 Pro
Mechanical push-button code, no batteries to die in winter, weather cover, and the accreditation that telecare services and police prefer. It costs several times what the budget boxes do, and that is the point. Fit it with the supplied fixings into brick or block, not mortar joints, and not onto the door frame.
| Photo | Title | Price | Buy |
|---|---|---|---|
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| Key Safe C500 Pro - High Security Police Preferred Outdoor Attack resistant Push button Wall Mounted Key safe. Lock box for keys, fobs, access cards | ยฃ68.95 |
|
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The honest budget option: Master Lock 5401
The long-standing cheap key safe from a known lock brand. For a low-risk use, a shed key, a holiday let’s spare, a dog walker, it is fine and has been for years. Master Lock does not pretend it is a high-security product at this price, which is exactly why it is the budget pick.
| Photo | Title | Price | Buy |
|---|---|---|---|
|
| Master Lock Key Safe, 5401EURD, Wall Mounted, Medium, Strong Outdoor Weather Resistant Construction - Mounting Hardware Included | ยฃ14.99 |
|
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The middle ground: Master Lock reinforced
Master Lock’s certified reinforced model sits between the two: sturdier body, still a mechanical code, at a price closer to the budget end. A reasonable choice where the C500’s price stings but the door matters.
| Photo | Title | Price | Buy |
|---|---|---|---|
|
| MASTER LOCK Reinforced Security Key Safe, Certified, Weatherproof, Wall Mounted | ยฃ22.95 |
|
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Fitting and using one sensibly
- Mount into solid brick or block with the supplied bolts. A key safe screwed to a fence post is theatre.
- Place it slightly out of sight of the street where possible, at a height the main user can reach.
- Set a code that is not the house number or year of birth, and change it when a carer or agency changes.
- Give the code to the care agency and alarm service through their proper process, not on a note by the door.
- Put only the door key inside, not a labelled bunch.
Frequently asked questions
What key safe do carers recommend?
Care and telecare services most often specify the Supra C500 range, because it carries Secured by Design accreditation and takes no batteries. Ask your care provider if they require a specific model before buying.
Are key safes secure?
Accredited ones are tested against attack and hold up well for their purpose. Budget boxes are convenience storage, not security. Neither is stronger than the wall it is bolted to.
Do key safes affect home insurance?
Policies differ, and some insurers care whether the box holding your key was an accredited one. Two minutes on the phone to your insurer settles it for your policy; guessing does not.
Will the council fit a key safe?
Sometimes, as part of a care package or telecare setup. Ask the service arranging the care before buying your own.
Mechanical or electronic?
For a carer’s key safe, mechanical. It cannot run out of battery on a January night, and the code can be worked by feel. Smart boxes suit holiday lets, where remote code changes matter more.
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Published 25 September 2026