Security rating: the ANSI grade question applies to both
Both smart locks and traditional deadbolts are rated on the ANSI Grade 1/2/3 scale for the mechanical bolt and housing. Many popular smart locks are Grade 2 or Grade 3 because the electronics package drives the cost and marketing, not the deadbolt mechanism. Before purchasing any smart lock, verify the ANSI grade on the product specification sheet — it is sometimes buried or missing from the consumer-facing listing.
Traditional Grade 1 deadbolts from brands like Schlage or Kwikset offer equivalent or better mechanical resistance at lower cost than most smart lock options. The security upgrade from a smart lock comes from access control features — temporary codes, access logs, remote locking — not from improved bolt strength.
Convenience: where smart locks win clearly
Auto-locking after a set time, keypad entry without fumbling for keys, remote locking from a phone when you forgot to lock on the way out, and temporary access codes for housekeepers or guests — these are genuine quality-of-life improvements that traditional deadbolts cannot match. For households with multiple people who need occasional access, or rental properties where guest codes need to be changed frequently, smart locks reduce friction significantly.
The convenience equation changes when the smart lock requires an app update, a battery change, or a Wi-Fi reconnection to function. The lock that requires a firmware update at 11 PM when you are standing in the rain is not convenient. Evaluate the brand's track record on software reliability, not just the features list.
Failure modes: where smart locks introduce new risks
Traditional deadbolts have one failure mode: mechanical wear over thousands of cycles, or a cylinder that freezes in winter. Smart locks have all of that plus battery failure (typically at the worst time), Wi-Fi outages that disable remote features, Z-Wave or Zigbee hub failures if the lock depends on a smart home hub, and firmware vulnerabilities that require regular updates to maintain security.
The most reliable smart lock designs include a physical key cylinder backup as a standard feature, not an afterthought. Locks that eliminate the physical key entirely trade one inconvenience (carrying a key) for a potentially larger one (being locked out when the battery dies and there is no backup entry method).
Renter and landlord contexts add another layer — smart lock apps often require an account that survives tenancy changes, and managing access code rotation between tenants requires a deliberate process that many property managers do not establish. A locksmith rekey is still the cleanest access-control reset between tenants even when a smart lock is installed.
Installation: where things go wrong
Most smart locks are designed for DIY installation on standard US door prep (2-1/8-inch cross bore, 2-3/8 or 2-3/4-inch backset). Where they fail: non-standard door thickness, doors with existing multi-point lock systems, commercial-grade doors with non-standard bore dimensions, and metal doors that interfere with RF communication on Z-Wave locks.
Wi-Fi signal strength at the door is a frequently ignored variable. Deadbolts near the front door often sit in a Faraday-effect zone near metal door frames and weatherstripping that drops signal strength. A Wi-Fi lock that works fine during setup may have intermittent connectivity during cold weather when the door shifts in the frame. Site-test before committing to installation.
Strike misalignment is the silent killer of battery life: if the bolt scrapes, the motor draws extra current thousands of times per month. A ten-minute strike adjustment during install often matters more than brand choice for long-term reliability.
Cyber hygiene and physical security together
Treat your smart lock app like banking: unique password, MFA on the vendor account, and revoke guest codes the moment visits end. Disable unused integrations that leak presence data to third-party hubs. Pair that digital discipline with Grade 1 mechanical hardware so a network outage still leaves you with a pick-resistant cylinder behind the motor.
Audit firmware quarterly; documented CVEs for popular locks are rare but serious when they land. If your vendor stops updates for a model, budget replacement before unsupported devices become the weakest link in your perimeter.
- MFA on vendor account: prevents remote unlock takeover via reused passwords
- Guest codes: time-bound, activity-labeled, deleted after events
- Offline access: mechanical key or external 9V contacts still matter in winter outages
Frequently asked questions
Can a locksmith install a smart lock?
Yes — most smart lock installations are straightforward for a locksmith and take 20 to 40 minutes. A locksmith can also verify that the door prep is compatible, adjust the strike plate if needed, and confirm the lock is cycling correctly before leaving the site.
Do smart locks work during a power outage?
Battery-powered smart locks continue to function during a power outage because they do not draw from home power. Wi-Fi-connected features (remote locking, notifications) depend on your router, which goes down with the power unless you have a UPS. Locks connected to a Z-Wave hub also lose hub-dependent features when the hub loses power. Keep fresh lithium cells on hand; alkaline droop under motor load causes nuisance low-battery warnings mid-winter.
Which smart lock brands do locksmiths typically recommend?
We install and service Schlage Encode, Kwikset Halo, and Yale Assure as solid Wi-Fi options with physical key backup. For Z-Wave integration, Schlage Connect and Yale Real Living are reliable. We do not recommend brands that lack a physical key override — that is a non-negotiable feature for us on any residential smart lock.