Published 2026-04-26 · Lone Star Lock Co
Smart Lock Installation in Houston: Schlage, Yale, August Compared
Quick answer: Houston smart lock installation runs $150 to $250 install only (you supply hardware) or $250 to $400 install plus hardware. Older bungalows in The Heights and Montrose sometimes need door prep that adds $50 to $100. Schlage Encode wins on heat tolerance. Yale Assure wins on humidity-sealed battery life. August wins on retrofit (keeps your existing lock) but has known reliability issues on south-facing doors in full Texas sun.
The three main smart lock brands in Houston
| Brand / model | Price (hardware) | Houston strength | Houston weakness |
|---|---|---|---|
| Schlage Encode (Wi-Fi) | $220 to $330 | Best keypad heat tolerance | Battery life drops in summer humidity |
| Schlage Encode Plus (Apple Home Key) | $320 to $430 | Tap-to-unlock with iPhone or Apple Watch | Requires Apple ecosystem |
| Yale Assure Lock 2 (Wi-Fi or Z-Wave) | $200 to $310 | Best humidity-sealed battery | Fewer integrations than Schlage |
| August Wi-Fi Smart Lock (4th gen) | $200 to $280 | Retrofits existing deadbolt | Older models fail on south-facing doors |
| Yale Assure SL (no keyhole) | $240 to $340 | Sleek, lower profile | No physical key backup |
| Eufy Smart Lock S330 | $180 to $260 | Fingerprint reader works in humid conditions | Newer brand, less Houston field history |
How Houston heat and humidity affect smart locks
Houston is hard on outdoor electronics. The combination of 90 to 100 degree summer heat plus 75 to 95 percent humidity plus direct sun exposure on south-facing or west-facing doors creates a stressful environment for keypad membranes, battery seals, and circuit boards. Most consumer smart locks are rated for the conditions, but the rating-versus-real-world gap shows up on year-3 and year-4 reliability.
What we see in the field after 3 to 5 years of Houston exposure. Schlage Encode keypads hold up well thermally but battery life drops from the rated 12 months down to 4 to 6 months in summer. Yale Assure batteries last longer (humidity seal is better) but the keypad membrane sometimes gets sticky on the most exposed doors. Older August units (pre-2020 models) had a documented housing-blistering issue on south-facing doors that newer generations have addressed.
Door prep on older Houston homes
Modern smart locks expect a standard 2-1/8 inch borehole and a 1 inch latch faceplate cutout, with a 2-3/8 inch or 2-3/4 inch backset. Most post-1980 Houston construction meets that spec. Older homes don't. Bungalows in The Heights, Montrose, and parts of the Museum District often have:
- Non-standard backset (sometimes 2 inches, sometimes 3 inches)
- Undersized boreholes (1-1/2 inch instead of 2-1/8 inch)
- Original mortise pockets that need patching before a cylindrical smart lock fits
- Solid hardwood doors that require slower drilling to avoid splintering
- Original brass trim plates that the homeowner wants preserved
Door prep for a 1920s bungalow runs $50 to $150 extra on top of the standard install fee. The work is straightforward (drill out the existing borehole, mill a fresh latch cutout, fit and align the new strike plate), but it takes 30 to 60 minutes longer than a modern-door install.
Wi-Fi vs Z-Wave vs Bluetooth
Three connectivity options, three different use cases.
Wi-Fi. Direct connection to your home router. No hub needed. You can lock, unlock, and check status from anywhere via the brand's app. Best for customers who want remote management and have reliable home Wi-Fi. The downside: Wi-Fi smart locks burn more battery than the alternatives. Houston customers see 4 to 8 months of battery life in summer vs. the rated 12.
Z-Wave. Connects to a Z-Wave hub (SmartThings, Hubitat, Ring Alarm, ADT Pulse). Lower battery drain than Wi-Fi, better range, more reliable in larger Houston homes with thick interior walls. Requires the hub. Best for customers already running a Z-Wave smart-home setup.
Bluetooth only. Direct phone-to-lock connection. No remote management beyond Bluetooth range. Best battery life. Best for customers who just want a keypad-and-app experience without remote access. Older August models were Bluetooth-only.
Real Houston smart lock installs
- Memorial 2010 single-family, Schlage Encode Plus install with Apple Home Key. Standard door prep, 45 minutes on-site. $215 install plus $349 customer-supplied hardware.
- Heights 1924 bungalow, August retrofit on original Medeco deadbolt. Customer wanted to keep the existing high-security cylinder. August retrofitted the interior side. 50 minutes on-site. $195 install plus $229 customer-supplied hardware.
- Sugar Land First Colony, Yale Assure Lock 2 with Z-Wave. Customer running SmartThings hub. Standard door prep, paired to existing automation routines. $235 install plus $279 hardware.
- Montrose 1932 bungalow, Schlage Encode install with custom door prep. Original mortise pocket needed patching, borehole needed enlargement. 95 minutes on-site. $295 install plus $269 hardware.
- The Woodlands premium home, two-door install: Yale Assure SL on front, Schlage Encode on garage entry. Customer wanted matching brand family on the keypad side. 70 minutes total. $385 install plus $548 hardware (two locks).
What about the existing key?
Schlage Encode and Yale Assure Lock 2 (the keyed versions) include a physical key backup, which we cut on-site or rekey to match an existing house key. Yale Assure SL (the keypad-only version) has no physical key at all. August retrofits leave the existing exterior cylinder unchanged, which means your existing house key still works on the outside.
For Houston customers who want to keep the existing key family across multiple doors (front entry / back patio / garage entry / side gate), we recommend the keyed Schlage or Yale models with a fresh rekey to match. That way the smart lock keypad is one access path, and your existing house key is a parallel path that also still works on every door.
Frequently asked
How much does smart lock installation cost in Houston?
Install only (you supply the lock): $150 to $250 depending on door prep needed. Install plus hardware: $250 to $400 for most consumer smart locks. Premium models (Yale Assure Lock 2 with Z-Wave, Schlage Encode Plus with Apple Home Key, August Smart Lock Pro): higher end of the range. Older Houston homes (1920s Heights and Montrose bungalows) sometimes need door prep that adds $50 to $100 because the existing borehole geometry doesn't match modern hardware.
Which smart lock works best in Houston heat and humidity?
All three major brands (Schlage, Yale, August) hold up reasonably well, but each has quirks. Schlage Encode has the best heat tolerance on the keypad (the rubberized membrane buttons are rated for full Texas sun exposure on a south-facing door). Yale Assure has the best battery life in Houston humidity (the battery seal is tighter than competitors). August has the best installation footprint (it retrofits onto your existing deadbolt instead of replacing the whole unit), but the older August models have known reliability issues on south-facing doors where direct summer sun blisters the housing.
Will a smart lock work during a Houston power outage?
Yes. All major smart locks run on batteries (usually 4 AA batteries lasting 6 to 12 months). They work during power outages because they don't need household electricity. The Wi-Fi or Bluetooth features stop working when your router goes down, but the keypad, the physical key backup, and any cached fingerprint or code data all still function. After a hurricane (Beryl, Harvey, Ike) when power is out for days, smart locks keep working.
Can a smart lock be hacked?
Modern smart locks with strong encryption are reasonably secure against remote hacking. The bigger real-world risk is local: someone watching you enter a code, someone discovering your default code wasn't changed, or someone with physical access to the lock for an extended period. We always recommend changing the factory default code, using a unique code per family member or service provider, and rotating codes after a contractor or cleaning service has access.
Do you supply the smart lock or do I buy it?
Either works. Customer-supplied is more common because customers research the model they want (Schlage Encode, Yale Assure 2, August Wi-Fi 4th gen, etc.) and order it via Amazon or a home-improvement store. We bring our tools and install. If you'd rather not source the hardware yourself, we can supply common consumer models at near-MSRP plus install. Most Houston customers find the customer-supplied path cheaper because of online pricing.
Can I keep my existing lock as a backup?
Not directly. A smart lock replaces the existing deadbolt entirely (Schlage Encode, Yale Assure 2 SL). The exception is August, which retrofits onto your existing deadbolt's interior side and leaves the exterior hardware (and physical key) unchanged. For Houston customers who want to keep an existing Medeco or Mul-T-Lock high-security deadbolt and add smart functionality, August is the right answer.
Need a smart lock installed in Houston?
Call (346) 594-6316 with the make/model you're considering, or ask for a recommendation based on your door and use case. See our smart lock installation service page, our deadbolt vs smart lock guide, and the posted cost guide for the full pricing breakdown.
Last updated: 2026-04-26.