What key safe do the police recommend?

When it comes to securing spare keys outside your home, not all key safes are created equal. Police forces and crime prevention officers across the UK and beyond have clear recommendations on which key safes offer genuine protection—and which ones provide little more than a false sense of security. Understanding what key safe the police recommend can mean the difference between a reliable security solution and an easily defeated one.

Why Police Recommendations Matter for Key Safes

Key safes are widely used by homeowners, carers, and property managers who need to provide controlled access to a property without handing out physical keys. They are especially common in home care settings, where multiple carers may need entry at different times of day. However, the market is flooded with cheap, poorly constructed models that can be opened with basic tools in under a minute.

Police crime prevention officers have tested numerous key safes and consistently point to specific security standards and brands as the benchmark for trustworthy protection. Their recommendations are based on resistance to physical attack, quality of the locking mechanism, and overall build integrity.

The Gold Standard: Sold Secure Diamond and Police-Preferred Specification

In the United Kingdom, the most authoritative endorsement a key safe can carry is the Sold Secure Diamond rating or the Police Preferred Specification (PPS) mark, awarded through Secured by Design—the official UK police initiative. These certifications indicate that a product has undergone rigorous independent testing and met the highest standards of physical security.

Sold Secure is an independent testing organisation that evaluates locks and security products against attempted attack using professional tools. Diamond is the highest rating in their tiered system, above Gold and Silver. A key safe bearing this mark has withstood sustained attempts at drilling, cutting, prying, and code manipulation.

The Secured by Design Police Preferred Specification mark tells consumers that a product has been vetted and approved by the Association of Chief Police Officers (ACPO). For key safes, this is the clearest possible signal that law enforcement considers the product fit for purpose.

Key Safe Brands the Police Regularly Recommend

Supra

Supra is one of the most frequently cited brands by police crime prevention officers and Secured by Design. Their key safes—particularly the C500 series—carry the Police Preferred Specification mark and are constructed from hardened steel with a reinforced shackle and a pick-resistant combination lock. Supra products are widely used by local authorities, NHS trusts, and care agencies across the UK precisely because of their recognised security credentials.

The combination mechanism on Supra safes uses a rotating dial rather than push-button codes, which provides greater resistance to code-guessing and wear-pattern analysis—a technique burglars use on frequently pressed push-button models where the most-used digits become visibly worn over time.

Master Lock

Master Lock's Select Access key safe range is another model frequently mentioned in police crime prevention guidance. Certain models in the range have achieved Sold Secure Diamond certification and are recommended by Secured by Design. They feature a resettable combination, a reinforced steel body, and a protective cover to shield the keypad from the elements and from casual observation.

Master Lock key safes are popular in both residential and commercial settings and are widely available through mainstream retailers, making them an accessible choice for homeowners who want a police-recommended product without specialist sourcing.

SentrySafe and Burton Safes

While primarily known for larger fire-resistant and security safes, both SentrySafe and Burton Safes produce smaller key storage products that meet recognised security standards. Burton in particular has a long-standing relationship with UK police and security institutions, and their products frequently appear on Secured by Design's approved product lists.

What Features Do Police Look for in a Key Safe?

Hardened Steel Construction

Police-recommended key safes are built from case-hardened or reinforced steel that resists drilling, sawing, and impact. Cheap plastic or thin metal models can be broken open with a screwdriver or hammer, rendering them useless as a security device. The body of a quality key safe should have a wall thickness sufficient to defeat basic hand tools.

Anti-Snap and Anti-Pick Locking Mechanism

The combination or locking mechanism must resist both picking and manipulation. Rotating-dial mechanisms generally offer superior resistance compared to simple push-button designs because they do not leave visible wear patterns. Some higher-end models incorporate anti-tamper alarms or double-locking mechanisms for additional protection.

Secure Mounting System

A key safe is only as secure as its installation. Police guidance consistently emphasises that the safe must be fixed to solid masonry—not timber, rendered surfaces, or hollow walls—using the appropriate fixings. Most recommended key safes come with masonry bolts designed to be concealed once the safe is mounted, preventing easy removal with standard tools.

Installation height matters too. Crime prevention officers typically advise mounting the safe between knee and hip height, away from drainpipes, window frames, and other surfaces that could provide leverage for an attack. It should not be directly adjacent to the door it protects, as this makes it easier for an opportunist to observe the code being entered.

Weather Resistance

Exterior key safes are exposed to rain, frost, and UV degradation. A police-recommended model will carry an IP (Ingress Protection) rating confirming resistance to moisture and dust. A minimum of IP54 is advisable for most UK climates, with higher ratings preferable in particularly exposed locations. A protective cover over the keypad helps shield the mechanism from both the weather and from observation.

Resettable Combination

The ability to change the access code is essential. If a carer leaves employment, or if you suspect the code has been compromised, a resettable combination allows you to restore security immediately without replacing the entire unit. Police and care sector guidance strongly recommends changing the code regularly and never using predictable sequences such as birth years, door numbers, or repeated digits.

Key Safes and Home Care: Specific Police Guidance

The use of key safes in home care settings—where local authority or private carers need regular access to a vulnerable person's home—has prompted specific guidance from police forces. Many forces explicitly recommend Secured by Design-approved products for this purpose and caution against budget models sold at general hardware retailers.

Some police forces have noted that poorly secured key safes represent a significant vulnerability in home care arrangements. A compromised key safe gives a burglar not only entry to the property but also the physical key, which can be copied before being replaced, leaving the householder unknowingly exposed even after the safe appears intact.

Red Flags: What Police Say to Avoid

Crime prevention officers are equally clear about what to avoid. Key safes without an independent security certification should be treated with caution regardless of marketing claims. Products labelled simply as "high security" or "heavy duty" without reference to Sold Secure, Secured by Design, or an equivalent standard have not been independently verified.

Push-button models with fixed, non-resettable codes are considered particularly problematic. Once the code is known—or inferred from wear patterns—the safe offers no further protection. Similarly, safes with exposed mounting bolts, lightweight steel bodies, or no protective cover over the mechanism are consistently flagged as inadequate in police guidance.

How to Verify a Key Safe Meets Police Standards

Before purchasing, check the Secured by Design website directly. Their approved product register is publicly searchable and lists key safes that have earned the Police Preferred Specification mark. You can also check the Sold Secure website for products holding Diamond, Gold, or Silver ratings. If a product is not listed on either database, it has not been police-endorsed regardless of any packaging claims to the contrary.

Your local police force may also offer a free home security survey through their crime prevention team. Officers can assess your specific situation, recommend appropriate products, and advise on installation. This service is underused by the public but consistently valuable—particularly for older adults or those arranging care access for a vulnerable family member.

Summary: What Key Safe Do the Police Recommend?

Police consistently recommend key safes that carry the Secured by Design Police Preferred Specification mark or a Sold Secure Diamond rating. Brands including Supra (particularly the C500 series) and Master Lock (Select Access Diamond-rated models) are among the most frequently cited in official crime prevention guidance. The right key safe should be constructed from case-hardened steel, feature a manipulation-resistant and resettable combination, carry a suitable weather resistance rating, and be installed correctly into solid masonry using concealed fixings. Choosing anything below these standards may provide the appearance of security while offering very little genuine protection.