Puroma Key Lock Box Combination Lockbox Wall-Mounted Key Storage Box for House Keys, Resettable Code Safe Security Lock Box for Home, Office, Garage, Apartment Spare Key Storage

Why I chose this lock box

I wanted a simple, dependable way to stash a spare house key outside without resorting to the old “under the mat” routine. The Puroma lock box hits that practical sweet spot: a compact, wall-mounted combination safe that’s straightforward to install, easy to use, and sturdy enough for everyday security needs. After several weeks of living with it by my garage side door, here’s how it stacks up.

Installation: quick, clean, and secure

Out of the box, you get the lock box, four screws, four wall plugs, and two rubber plugs for the mounting holes. I mounted mine on brick using a masonry bit sized to the included anchors, but it’s equally at home on wood framing with pilot holes. The whole process took under 15 minutes.

A few small touches make the install feel thought through:
- The mounting screws are enclosed when the box is closed, so you can’t just unscrew it from the wall.
- The body sits flush and stable once anchored; there’s no wobble or flex.
- The rubber plugs cap the mounting holes inside the cavity to keep out dust and moisture.

If you’re installing outdoors, I recommend a spot with some overhang (eaves or a porch) to reduce direct weather exposure. It’s weather-resistant, not submarine-grade.

Build quality and security

The Puroma lock box is a metal-bodied unit (aluminum alloy and steel) with a nicely compact footprint. The door tolerances are tight, the hinge feels robust, and the faceplate doesn’t flex under hand pressure. You’d need tools and time to make a dent, and casual prying attempts won’t get far.

That said, it’s still a consumer-grade, 4-digit combination box. With 10,000 combinations, brute forcing isn’t trivial, but it’s not impossible for a determined attacker with uninterrupted access. Like any key safe, it’s a deterrent, not a bank vault. The right way to think about it is as part of a layered security approach:
- Don’t mount it in the most obvious spot.
- Use solid substrates (masonry or bolted to a stud).
- Consider upgrading to tamper-resistant screws if you want the extra peace of mind.
- Store only what you need (a single door key, not a master key set).

On balance, the security-to-price ratio is very good. The metal construction and recessed design around the door make opportunistic tampering difficult, and the internal screws are a must-have feature done right.

Everyday use: simple and reliable

The combination comes preset to 0000. Changing it takes a minute: open the box, move the internal reset slider, choose your four digits, and return the slider. I prefer this style over spring-loaded pins—fewer fiddly parts and a clearer “set” state. The dials on the front are smooth with just enough resistance that numbers don’t wander. Even with gloves, I had no trouble rotating to the right code.

Opening is refreshingly straightforward. There’s no tiny secondary latch to hunt for; once the code is aligned, a firm pull on the top tab pops the door free. Closing the door is just as easy—press it in and scramble the dials. The tactile feel of the mechanism is better than I expected at this price, and after several rainstorms and dusty weekends in the garage, the action stayed consistent.

Two usability notes:
- Low light makes reading any mechanical dials harder. A phone flashlight solves it, but if you plan to use it at night, mount it where you have some ambient light.
- Pick a code you can change regularly. Because this is a simple mechanical box, code changes are fast; rotating codes after a guest stay or contractor visit is straightforward.

Capacity and fit

This is the “medium capacity” version. Realistically, it fits:
- 3–5 standard house keys on a small ring, or
- a couple of flat keys and a small key card

Bulky FOBs are a tight squeeze. I could fit a compact car key if I removed the ring and positioned it diagonally, but modern, chunky FOBs are better left inside or replaced with a flat valet key if you want car access. For home use, the size is spot-on; it keeps you from cramming in a bunch of unnecessary items while still offering enough space for what matters.

Weather resistance and durability

Mine lives outside under an eave. We’ve had wind-driven rain and a few hot spells, and the internals have stayed dry. The rubber plugs and the tight door seam help, and I see no signs of rust or corrosion so far. I wouldn’t mount it in a spot that gets a direct daily sprinkler blast or a constant salt spray, but for typical residential exposure, it’s holding up well.

A bit of preventative care goes a long way:
- A tiny dab of dry lubricant on the dials every few months keeps them turning smoothly.
- Avoid pressure washing the face directly.
- If you live in a freezing climate, a quick tap to break any ice around the dials after a freeze-thaw cycle is smart practice for any mechanical lock.

What it’s good for

• Homeowners who want a spare key outside without relying on neighbors (or planters).
• Short-term rental hosts who prefer a mechanical solution over a connected lock and are fine changing codes manually.
• Landlords, cleaners, and pet sitters who need intermittent access.
• Family members or caregivers who may need emergency entry—codes are easy to communicate and change.

It’s also a nice fit for garage side doors, sheds, or utility rooms where a single key does the job.

What I’d improve

• Slightly more interior depth would help accommodate modern car FOBs. Not a deal-breaker for home use, but worth noting.
• The dials are legible, though higher-contrast numerals would make night use easier.
• Including an adhesive drill template in the box would make positioning the holes even faster (I made my own with painter’s tape).

None of these are fundamental flaws; they’re refinements that would elevate an already solid design.

Value and alternatives

There’s a lot to like here for the money. You get a metal construction, properly hidden mounting screws, weather resistance, and a clean user experience without gimmicks. If you need remote code management, audits, or app integration, a smart lock or Wi-Fi-enabled lock box is the better route—but you’ll pay significantly more and introduce batteries and connectivity into the mix. If you need portability, a shackle-style box is handy, but it’s easier to walk off with and often less robust than a properly mounted unit like this one.

For a fixed, mechanical solution, the Puroma lock box lands in a sweet spot of simplicity, durability, and cost.

Final take

The Puroma lock box does exactly what I want a key safe to do: install easily, open reliably, resist casual tampering, and stand up to the weather—all without making me think about it. It’s not designed to thwart a determined attack with tools, but neither is any lock box in this class. Used smartly and installed well, it’s a substantial upgrade over hiding a key and a practical part of layered home security.

Recommendation: I recommend the Puroma lock box. It’s a sturdy, straightforward, and budget-friendly way to manage spare keys for a home, garage, or rental without adding complexity. Choose a less conspicuous mounting spot, rotate your code when needed, and it will quietly do its job for years.