Smart Locks: What to Know Before You Buy (Sacramento, 2026)
TL;DR - Quick Answer
A smart lock replaces or augments a traditional deadbolt with electronic access — keypad codes, phone apps, fobs, or a mix of these — while (ideally) still accepting a physical key as backup. The lock itself is only half the security picture; the deadbolt hardware, strike plate, and door frame it's attached to matter just as much. Before buying, think through battery life, backup key access, whether you're renting or own the home, and whether installation is a simple swap or a job for a locksmith. Prices vary widely by brand and features, so treat any number you see online as a starting point, not a quote.
How They Work
At the most basic level, a smart lock is a deadbolt or lock mechanism that can be operated electronically in addition to (or sometimes instead of) a traditional key. Most residential smart locks fall into a few categories:
- Keypad locks let you punch in a numeric code instead of using a key. Some allow multiple codes for family members or guests.
- App-controlled locks connect to your phone via Bluetooth or Wi-Fi, letting you lock or unlock the door remotely, see a log of who came and went, and sometimes create temporary access codes.
- Fob or card-based locks work similarly to a hotel key card, using RFID technology.
- Hybrid locks combine two or more of the above — for example, a keypad plus a physical key override, or an app plus a fingerprint sensor.
Behind the scenes, the electronic components control a motor that throws or retracts the bolt. Power typically comes from batteries housed in the interior unit. Communication with your phone or a smart home hub usually happens over Bluetooth, Wi-Fi, or Z-Wave/Zigbee, depending on the brand and whether you want a hub-based or standalone system.
It's worth understanding that "smart" refers to how the lock is operated, not necessarily how strong it is. A smart lock can be built on top of a heavy-duty deadbolt or a flimsy one. The electronics add convenience — you're not fumbling for keys in the dark, and you can let in a dog walker without cutting a spare key — but they don't automatically make your home more secure. That comes down to the hardware underneath, which we'll get to next.
For Sacramento homeowners, climate is a minor but real consideration too. Our summers bring long stretches of high heat, and exterior-mounted electronic components can be exposed to direct sun on west- and south-facing doors. Look for locks rated for outdoor temperature ranges if your front door gets significant sun exposure, and consider a door with some overhang or shade if possible.
Why the Deadbolt and Door Matter More
This is the part that gets overlooked in a lot of smart lock marketing: the electronics are just the "brain" of the lock. The actual security — the part that resists someone kicking the door in, prying it with a tool, or forcing the bolt — comes from the deadbolt hardware, the strike plate, and the door and frame themselves.
A few things matter more than whether a lock is "smart":
- Bolt throw length. A deadbolt that extends at least an inch into the frame is generally considered more resistant to forced entry than a shorter throw.
- Strike plate and screws. A flimsy strike plate held on with short screws is a weak point regardless of how advanced the lock cylinder is. Longer screws that reach into the door's structural framing add meaningful resistance to kick-ins.
- Door material and frame condition. A hollow-core or older, warped door undermines even the best lock. Solid-core doors and frames in good repair matter a great deal.
- Grade ratings. Locks are often rated by ANSI grade (Grade 1 being the most durable commercial-level rating, Grade 2 mid-range, Grade 3 basic residential). Many smart locks are built on Grade 2 or Grade 3 hardware; a smaller number offer Grade 1 options. If security is your top priority, it's worth asking specifically about the grade of the underlying deadbolt, not just the smart features.
In short: a smart lock bolted onto a weak door with a flimsy strike plate is still a weak door. If you're investing in a smart lock partly for security reasons, it's worth having someone assess the door and frame at the same time, not just the lock itself.
Batteries and Backup Keys
Because smart locks run on batteries, planning for power loss is essential — not optional.
Battery life varies by usage and brand, generally lasting many months to around a year with typical daily use, though frequent use, cold weather, or Wi-Fi-connected models that stay in constant communication tend to drain batteries faster. Most locks give you a low-battery warning through the keypad, an app notification, or a flashing light.
What happens when the battery dies? This is one of the most important questions to ask before buying, and the answer differs by lock:
- Many locks have an external contact point (like a 9-volt battery terminal) that lets you touch a backup battery to the outside of the lock to get enough power for one unlock.
- Some locks still accept a physical key as a full backup, which is worth prioritizing if you want a fallback that doesn't depend on any battery at all.
- A smaller number of locks have no physical key override at all — if the battery dies and there's no external contact option, you could be locked out until you can get inside another way.
Given this, it's generally wise to choose a smart lock that keeps a traditional key cylinder as backup, keep spare batteries on hand, and test your battery replacement process once so you're not learning it under stress. It's also worth keeping a spare traditional key with a trusted neighbor or family member in the Sacramento area, in case you're locked out and need help before you can get back inside.
Renting vs Owning
Whether you rent or own your home changes both what you're allowed to install and what makes financial sense.
If you rent: Most lease agreements require landlord approval before changing locks, including installing a smart deadbolt. Some landlords are open to it if you agree to reinstall the original hardware before move-out; others prohibit lock changes entirely. It's worth checking your lease and getting written permission before spending money on a lock you might have to remove. Some renters opt for a smart lock that replaces just the interior thumb-turn or attaches over the existing deadbolt without permanent modification, which can be easier to reverse. If you do have a lock changed or rekeyed, keep the original hardware and any original keys to return at move-out.
If you own: You have more flexibility, but it's still worth thinking about resale. Some buyers appreciate smart locks; others prefer traditional hardware or don't want to deal with unfamiliar batteries and apps. If you plan to sell in the next few years, a well-known lock brand with a simple keypad tends to have broader appeal than a niche connected system tied to a specific smart home ecosystem.
Either way, factor in the ongoing relationship with the lock: batteries need periodic replacement, firmware may need occasional updates, and paired phones or apps need to be managed when household members change (roommates moving out, kids getting phones, etc.).
Installation: DIY vs Pro
Many smart locks are designed for homeowner installation, and manufacturers generally advertise a straightforward swap using basic tools. That said, a few situations make professional installation worth considering:
- Your door isn't standard. Older Sacramento homes, especially in historic neighborhoods, sometimes have doors or frames that don't match modern standard dimensions, or have been modified over the years. A mismatch between the lock's backset, bore hole size, or door thickness and your existing door can turn a "20-minute install" into a frustrating afternoon.
- You want the deadbolt and strike plate reinforced at the same time. If you're upgrading security, not just convenience, a locksmith can evaluate the strike plate, screws, and frame while installing the lock — addressing the "door matters more than the lock" issue from earlier.
- You're not confident drilling or adjusting a door. Mistakes here (stripped holes, misaligned bolts) can be costly to fix and may leave the door less secure than before you started, not more.
- You want the lock properly paired with a smart home system, or need multiple units set up consistently across several doors.
If you do go the DIY route, measure your door's thickness and backset (the distance from the edge of the door to the center of the bore hole) before buying, and confirm the lock is compatible with your existing deadbolt hole spacing so you're not forced into extra drilling.
Costs for professional installation vary by job — the complexity of the door, whether any reinforcement or drilling is needed, and the lock model itself all affect the price. It's reasonable to ask for an estimate before work begins so there are no surprises.
Honest Security Trade-Offs
Smart locks come with real benefits and real trade-offs. Being clear-eyed about both helps you make a better decision.
Benefits:
- No more hidden spare keys under the mat or in a fake rock — a known weak point for burglars who know where to look.
- Temporary or scheduled codes for house sitters, cleaners, or contractors, without cutting physical keys.
- Activity logs that show when the door was locked or unlocked (useful for peace of mind, though not a substitute for a full security system).
- Convenience for households with kids, elderly family members, or anyone who struggles with a physical key.
Trade-offs to weigh honestly:
- Connectivity issues. Wi-Fi outages, dead batteries, or app glitches can occasionally leave you unable to unlock remotely, even if the physical mechanism still works fine with a backup key or code.
- Hacking concerns are often overstated but not zero. Reputable brands use encryption for Bluetooth and Wi-Fi communication, but no connected device is entirely immune to vulnerabilities. Keeping firmware updated and using strong, unique codes reduces (but doesn't eliminate) this risk.
- Codes can be shared or shoulder-surfed. A shared four-digit code is only as secure as the people who know it. Rotate codes periodically, especially after a falling-out with a former guest, contractor, or ex-roommate.
- They don't replace basic habits. A smart lock won't help if a door is left ajar, a window is unlocked, or a garage entry door is neglected. Think of it as one part of a layered approach to home security, not a complete solution on its own.
- Underlying hardware still matters most, as covered above. A smart lock on a low-grade deadbolt with a weak strike plate is not a security upgrade — it's a convenience upgrade with a security-adjacent label.
For most Sacramento homeowners, a reasonable approach is: choose a lock with a decent ANSI grade deadbolt, keep a physical key backup, reinforce the strike plate and frame if they're outdated, and use the smart features (codes, logs, remote access) as an added layer of convenience — not as a replacement for solid physical hardware.
FAQ
Are smart locks actually more secure than traditional deadbolts?
Not automatically. Security comes primarily from the deadbolt hardware, strike plate, and door frame, not from whether the lock is "smart." A smart lock built on a strong, properly installed deadbolt can be just as secure as a traditional one, with the added convenience of codes and remote access — but the electronics themselves don't add strength against forced entry.
What happens if the battery dies while I'm locked out?
It depends on the model. Many smart locks have an external contact point where you can touch a 9-volt battery to power one unlock, and some still accept a traditional key as a full backup. If a lock has neither option, a dead battery could leave you locked out, so it's worth checking this feature before buying.
Can I install a smart lock myself, or do I need a locksmith?
Many models are designed for straightforward homeowner installation with basic tools. Professional installation becomes more useful if your door is nonstandard, you want the strike plate or frame reinforced at the same time, or you're not comfortable drilling and aligning hardware yourself.
Should I get a smart lock if I rent my home in the Sacramento area?
Check your lease first — many landlords require approval before any lock changes, and some prohibit them. If you do get approval, keep the original hardware and keys so you can restore them at move-out, and consider a lock designed to be reversible.
Do smart locks work during a power or Wi-Fi outage?
Most residential smart locks run on their own batteries, so a home power outage typically doesn't affect them directly. However, Wi-Fi-connected models may lose remote-access features (like unlocking from an app away from home) during an internet outage, even though the physical keypad or key usually still works locally.
How much does a smart lock typically cost, including installation?
Costs vary widely depending on the brand, features (keypad only vs. app-connected vs. biometric), and whether the door needs additional work like strike plate reinforcement. It's best to treat any price you see online as a rough starting point and ask for a specific estimate based on your door and chosen lock.
Can smart locks be hacked?
No connected device has a zero-risk guarantee, but reputable smart locks use encryption for their Bluetooth or Wi-Fi communication, which reduces common risks. Keeping firmware updated, using unique access codes, and avoiding cheap unbranded models are practical ways to reduce (not eliminate) this concern.
What should I look for in a smart lock if security is my main concern?
Prioritize a lock built on a well-rated deadbolt (look for ANSI grade information), a strike plate that can be reinforced with long screws into the door frame, and a physical key backup option in case of battery failure. The "smart" features are a convenience layer on top of that foundation, not a replacement for it.
Last updated: August 2026.