Smart locks are not all the same — especially in Houston. Our climate kills electronics. 100°F + 90% humidity for 5 months a year is a stress test most lock manufacturers do not design for.

I installed and tracked 6 of the most popular smart locks in real Houston homes for the past 12 months. Here is what actually held up, plus the full installation cost picture for 2026.

The Short List (What I Install Today)

If you do not want to read the deep-dive, here is what I install in the most homes per month right now:

Schlage Encode Plus — best overall, best for Houston heat
Yale Assure 2 — best for renters / Airbnb
August Wi-Fi (4th gen) — best retrofit (keeps your existing deadbolt)
Kwikset Halo — best budget option
Aqara U100 — best for Apple Home users
Eufy E330 with video — best with built-in camera

Below is what each one is actually like after a year on Houston doors.

Why Houston Is Hard on Smart Locks

Before the reviews, the climate problem matters:

Heat: West-facing front doors hit 130°F+ surface temperature. LCD screens fade. Batteries swell.
Humidity: Internal contacts corrode. Bluetooth chips short.
Rain & wind-driven storms: Most "weather-resistant" smart locks are rated for light rain, not Gulf squalls.
Power flicker outages: Locks that need wifi to lock fail during storms.

Any lock you put in Houston must have:

IP-rated weather sealing (look for IPX5 or higher)
Local Bluetooth fallback (don't depend on wifi)
Replaceable batteries (sealed-battery locks are landfill in 18 months here)

The Reviews

1. Schlage Encode Plus — 4.8 / 5

Price: $299 retail / $349 - $429 installed by us What it is: Built-in wifi, Apple Home Key (tap your iPhone to unlock), keypad backup.

12-month verdict: Survived a full Houston summer with no issues. Keypad still crisp. Apple Home Key works flawlessly even when wifi is down. The deadbolt itself is a Schlage B60 — the same one we have trusted for 30 years.

Drawbacks: Battery life is 4 - 6 months in heat (not the advertised 12). Wifi range is short — you may need a mesh node nearby.

2. Yale Assure 2 (Wi-Fi Module) — 4.6 / 5

Price: $279 / $329 - $399 installed What it is: Modular system. Buy with or without wifi, with or without keyway, with or without keypad.

12-month verdict: Excellent for Airbnb / rental properties. Easy to issue and revoke pin codes from the app. The "no keyway" version is genuinely pick-proof (no keyway = no picking).

Drawbacks: App can lag. The Yale Connect bridge is sometimes flaky in storms.

3. August Wi-Fi (4th Gen) — 4.5 / 5

Price: $229 / $269 - $329 installed What it is: Mounts on the inside of your door over your existing deadbolt. Outside still looks like a regular lock.

12-month verdict: The retrofit is the secret weapon. Your front door still looks normal. You keep your existing key. Tenants / kids / contractors who do not need an app still work the lock the old way.

Drawbacks: Your existing deadbolt has to be in good shape. If your lock is sticky, August will be sticky. Battery: 3 - 4 months in heat.

4. Kwikset Halo — 4.3 / 5

Price: $199 / $239 - $289 installed What it is: Wifi smart lock at near-Home Depot price. Touchscreen keypad.

12-month verdict: Solid budget pick. Held up fine on a north-facing door. The touchscreen does get sluggish in extreme heat (West Houston, 4 PM, 105°F).

Drawbacks: Not as polished as Schlage. App reviews are mixed. The mechanical Kwikset deadbolt underneath is fine but not premium.

5. Aqara U100 — 4.4 / 5

Price: $189 / $229 - $279 installed What it is: Apple Home Key + fingerprint + keypad + actual key.

12-month verdict: If you live in Apple Home, this is the move. Tap-to-unlock with Apple Watch is delightful. Fingerprint scanner works in summer humidity (some don't).

Drawbacks: Not great if you have Android-only family members. Hub required for some features.

6. Eufy E330 (with built-in camera) — 4.2 / 5

Price: $399 / $449 - $529 installed What it is: Smart lock + 2K video doorbell-style camera in one unit.

12-month verdict: Combines two devices into one — good if your front door is also where you want a camera. Local storage means no cloud subscription required.

Drawbacks: Bigger and bulkier than other locks. Battery drains faster because of the camera. Not as good as a dedicated camera and a dedicated lock.

Real Houston Installation Cost Breakdown (2026)

When we install a smart lock for you, here is the line-item cost:

Service call: $35 - $55
Lock removal of old deadbolt: included
New smart lock install + alignment: $45 - $75
App setup, code programming, wifi pairing: $25 - $40
Bring your old deadbolt back to factory key (so you have a backup): $20 - $35

Average all-in cost: $130 - $200 in labor, plus the lock itself.

We can use a lock you bought yourself, or we can supply one at the same price as Amazon.

What I Would Tell My Mother

If she lives in Houston, has one front door, owns the home, and has wifi — Schlage Encode Plus.

If she rents — August Wi-Fi.

If she is on a tight budget — Kwikset Halo.

If she is iPhone-only and loves Apple Home — Aqara U100.

That is the whole answer.

Want One Installed?

We install all 6 of the locks above. We bring the lock, install it, configure the app, train you on how to use it, and rekey your back door so it matches a backup mechanical key.

Most installs done in 35 - 50 minutes. Same-day available across Houston.

Houston Key Rescue: (281) 845-4011

Best Smart Locks for Houston Homes (2026 Review & Install Guide)