Smart Lock vs. Traditional Keys: What’s Best for Your Property?

When running a short-term rental, one of the first decisions you’ll face is how guests get in. Do you stick with the old-fashioned key? Or do you move to a smart lock system?

Access might seem like a small detail, but it shapes the guest experience. It affects safety, convenience and your day-to-day stress. Pick the wrong system, and you’re stuck replacing lost keys, fielding late-night calls or worrying about break-ins.

If you’re working with a Airbnb property management company, they’ll likely recommend one over the other depending on your property type, guest profile and tech comfort level.

So let’s break it down. Smart lock or traditional key—which one really makes sense?

Convenience for Guests

Guests don’t want delays or confusion. They want to arrive, drop their bags and relax. Your access system plays a big part in how smooth that first impression feels.

Traditional keys are familiar. Everyone knows how to use one. But they also come with problems:

• Lost or forgotten keys
• Guests locking themselves out
• Needing a key handover, which can cause delays

Smart locks solve most of this. They allow remote access using codes or mobile apps. That means no waiting around. No stress about meeting times. No chance of losing keys.

From a guest’s view, especially those arriving late, smart locks offer freedom and flexibility. They can check in at midnight without waking anyone up or fumbling with a lockbox.

In today’s short-term rental world, where fast self-check-in is expected, smart access supports smoother bookings and better reviews. As you plan your setup, consider this guide to success with an Airbnb property manager for more direction on how tech impacts experience.

Security for Property Owners

Security is non-negotiable. Whether you’re hosting a beach cottage or inner-city apartment, you need to know your property and guests are safe.

Traditional keys present several risks:

• Easy to duplicate without your knowledge
• Lost keys can result in rekeying the whole property
• Previous guests might still have copies if you didn’t change locks

Smart locks, on the other hand, offer:

• Temporary codes for each guest
• Logs showing who accessed and when
• Quick deactivation of access if needed
• No physical keys to copy or misplace

Plus, smart locks can be connected to an app that sends alerts when someone enters. This gives hosts more control and real-time visibility.

That said, smart locks depend on batteries and sometimes Wi-Fi. If not maintained, they can fail. But with proper care and a backup key or override, they’re safer long-term.

Managing Access from Anywhere

One of the best things about smart locks is remote access. If you’re not local, you can still manage everything from your phone. Change codes, check entries, and support guests—even if you’re in another city.

Traditional keys require a local contact or co-host. If something goes wrong, someone needs to physically be there. That might mean paying for a locksmith or asking neighbours for help.

Smart locks remove that hassle. With cloud-based systems, hosts can:

• Set or reset guest codes instantly
• Provide access to cleaners or maintenance without a key exchange
• Lock or unlock the door remotely

This saves time and avoids awkward handovers. It also allows for fast responses when something goes wrong.

That’s why many hosts also tie smart locks into their Airbnb welcome guide essentials. The more you automate, the fewer things guests need to ask.

Maintenance and Durability

Let’s talk upkeep. All systems wear down over time. But how much work are you willing to do?

Traditional keys and locks are simple and reliable. They don’t need power. But they can jam or wear out. If a guest forces a key or the lock gets rusty, you’re calling a locksmith.

Smart locks run on batteries. If you don’t check them often, they can die. Most good models send alerts when batteries are low, but ignoring those warnings leads to problems.

Some models also rely on Wi-Fi or Bluetooth. If your internet’s unreliable or the signal drops, access might be blocked. That’s why it’s smart to choose models with offline entry codes and physical override options.

Maintenance aside, guests can’t break a smart lock the way they might jam a key. And if someone does damage the unit, you’ll see it in the access log.

Guest Communication and Support

When things go wrong, guests panic. So how easy is it to guide them through your access method?

With traditional keys, you’re limited. If they lose the key or lock themselves out, there’s not much you can do from afar. You’ll need a spare key hidden nearby or someone on standby.

With smart locks, troubleshooting is easier. You can:

• Resend the code
• Unlock the door remotely
• Walk guests through the app or keypad

This flexibility makes a big difference, especially during night check-ins or long stays. It’s also where clear instructions count. Include diagrams or videos if you use an app-based system.

Strong access instructions are part of guest communication tips for late arrivals. You want your guests to feel confident, not confused.

Cost and Investment

Money matters. So which option is more budget-friendly?

Traditional locks cost less upfront. A basic door lock and a few spare keys won’t break the bank. But the long-term costs stack up if you:

• Replace lost keys
• Rekey the lock after each guest
• Pay for emergency locksmiths

Smart locks cost more to buy and install. Expect to pay anywhere from $150 to $350, depending on the features. But once installed, you save time and avoid the need for rekeying.

Over time, smart locks often pay for themselves through:

• Fewer callouts
• Less key loss
• Faster turnovers

It comes down to long-term thinking. If you’re serious about hosting and want to scale or save time, smart locks are worth the upfront cost.

Tech Comfort and Guest Demographics

Not every guest is tech-savvy. If your property attracts retirees, older couples or families unfamiliar with smart systems, tech might create confusion.

Traditional keys feel safe and easy for these groups. They don’t need a tutorial. But younger travellers, business guests and digital nomads often expect smart solutions.

Smart locks match modern expectations, especially for self-check-in. If your guests are used to using apps and QR codes, a digital lock will feel natural. For others, you may need clearer instructions and a physical backup plan.

The key is knowing your guest profile. If you host a lot of short stays or business travellers, tech works well. For longer stays or mixed-age groups, combine a smart lock with a spare key for peace of mind.

Future-Proofing Your Property

Trends show that smart tech isn’t going away. Airbnb, Stayz and other platforms are all leaning into automation, instant bookings and seamless check-ins.

Using smart locks puts you ahead of the curve. They can be integrated into other tools, such as:

• Smart thermostats
• Security cameras
• Property management systems
• Automated guest messaging

This makes operations smoother and easier to scale. If you want to add more listings or reduce manual tasks, automation is key.

Traditional keys may still work, but they’re not future-proof. Guests want speed and self-service. Hosts want control and efficiency. Smart systems offer both.

If you’re planning to grow or streamline, investing in smart access is a smart move.

FAQs

1. Are smart locks safe from hackers or tech issues?

Good question. Yes, smart locks come with digital risks, but top brands use strong encryption and regular software updates to protect against hacking. Like anything connected to the internet, there’s always some risk. But the odds of someone hacking your lock are far lower than someone copying a key. Make sure you choose a model with two-factor authentication and access logs. Also, set unique codes for each guest and delete them after their stay. Most smart locks let you set temporary access, which limits exposure. Keep firmware up to date and avoid public Wi-Fi when managing your lock remotely. Also have a backup plan, like a mechanical key override or a second entry point. As long as you follow security best practices, smart locks are secure enough for most short-term rental properties.

2. What happens if a guest forgets the code or can’t unlock the smart lock?

First, stay calm. This happens more often than you’d think. Most smart locks have backup access options like a manual key or secondary code. You can also unlock the door remotely through your app. This is a key benefit of smart locks—you’re not stuck waiting on-site. If your system uses a mobile app, ensure your welcome message includes download links and login steps. Provide a printed backup guide at the property with the main code and instructions. In some cases, it helps to have a local contact who can assist if tech fails. Guests appreciate quick solutions. If you handle it smoothly, the issue usually won’t affect your review. If you’re worried, choose a smart lock with a keypad, not just app access, so guests can still enter even if their phone battery dies.

3. How long do smart lock batteries last and how do I check them?

Most smart locks use AA or rechargeable lithium batteries that last 6 to 12 months, depending on usage and weather conditions. Cold climates can reduce battery life, so indoor installation or weather-resistant models are better in those areas. Most smart locks send you low-battery warnings through their app or blink a warning light on the device itself. As a best practice, schedule a routine check every few months or after every few stays. Keep spare batteries on hand, and show guests where the backup key is in case of a dead lock. If you’re managing multiple properties, use a property management system that tracks battery levels across devices. Staying ahead of battery life prevents lockouts and ensures smooth stays for guests.

4. Can I install a smart lock myself or do I need a professional?

That depends on your comfort with basic tools. Many smart locks are designed for DIY installation. If your current lock fits standard dimensions, swapping it out usually takes under an hour. Most kits include step-by-step instructions, and some brands even have videos. But if your door or frame is custom, or if you need to wire in a power source, it’s better to get a professional. For security reasons, the lock must be fitted properly with no loose parts. A poorly installed lock can jam, break or become a target. If you’re adding it to an investment property or listing for income, don’t cut corners. It’s a one-time job that gives long-term peace of mind.

5. Is it possible to use both a smart lock and a traditional key at the same time?

Yes, and it’s often a smart idea. Many digital locks come with a backup key slot or mechanical override. This gives you the best of both worlds—tech convenience with physical backup. Some hosts give the guest a code and keep the key for emergencies. Others hide a key onsite as a fallback. This setup works well for guests who aren’t tech-savvy or in case the battery dies. If you go this route, make sure the backup key is well hidden or secured in a lockbox. Also let guests know not to use it unless instructed. The dual system adds flexibility, security and comfort for you and your guests.

Make Access Work For You

Whether you choose a smart lock or stick with a traditional key, the goal stays the same: keep guests happy and your property secure.

Smart locks are the future. They simplify check-ins, boost security and give you full control, even from a distance. Traditional keys still work, especially in low-tech setups, but they come with more risk and effort.

Think about your guest profile, your availability and your goals. Do you want to grow your business? Automate check-ins? Spend less time solving access issues?

Then it’s time to look at what makes sense long-term. To streamline your rental operations and upgrade the way you manage guest access, visit BNB Booking and get expert support from people who know how to make tech work for property owners.

Please call us today on 1300 421 029 to learn more or leave an enquiry and we will get back to you as soon as possible.