This guide walks you through every step, from checking compatibility and choosing the right lock type to troubleshooting common problems and knowing when to call a pro.
What Is a Smart Lock
A smart lock is an electronic deadbolt that replaces your traditional key-based lock, with the U.S. market reaching $887.6 million in 2024. Instead of carrying a metal key, you unlock your door using a PIN code, fingerprint, smartphone app, or voice command. The lock connects to your home network through WiFi or Bluetooth, which means you can control it remotely and see exactly who's entering your home.
Installing a smart lock involves removing your old deadbolt, mounting the new components, inserting batteries, and then setting everything up through a phone app. Most homeowners can complete the physical installation in about 30–60 minutes with just a screwdriver. The digital setup—connecting to WiFi and creating access codes—takes another 15–20 minutes.
Types of Smart Locks for Your Home
Not all smart locks work the same way, and the type you choose affects both installation complexity and daily use. Here's what's available.
Keypad Smart Locks
Keypad locks use a numeric code for entry. You punch in your 4–8 digit PIN, and the deadbolt retracts. No smartphone required, no app to download.
Installation is straightforward since keypad locks don't rely on WiFi connectivity. You can create unique codes for each family member and delete them whenever you want—handy when a houseguest leaves or you change cleaning services.
Fingerprint Smart Locks
Biometric locks scan your fingerprint to grant access. One touch and you're in.
During installation, sensor positioning matters. If the scanner sits at an awkward angle, you'll have reliability problems every time you try to unlock. Most models store multiple fingerprints, so each person in your household gets their own profile.
WiFi and Bluetooth Smart Locks
The difference here comes down to range. WiFi locks let you control your door from anywhere with an internet connection—across town or across the country. Bluetooth models only work when you're within about 30 feet of the lock.
WiFi models drain batteries faster because they're constantly connected, typically lasting 6 to 12 months depending on usage. On the other hand, they're the best option if you want to integrate with Alexa, Google Assistant, or Apple HomeKit.
Touchscreen Smart Locks
Instead of physical buttons, touchscreen locks feature a smooth, illuminated display. They look modern and sleek, though the screen tends to use more battery than a traditional keypad.
| Lock Type | Entry Method | Connectivity | Best For |
|---|---|---|---|
| Keypad | PIN code | None or Bluetooth | Simple keyless access |
| Fingerprint | Biometric scan | Bluetooth or WiFi | Quick, personalized entry |
| WiFi/Bluetooth | App or code | WiFi or Bluetooth | Smart home integration |
| Touchscreen | Touch-based PIN | Varies | Modern aesthetics |
How to Check Smart Lock Compatibility with Your Door
Before buying any lock, verify it will actually fit your door. A few quick measurements save you from frustrating returns.
- Door thickness: Standard residential doors measure 1⅜" to 1¾" thick. Grab a tape measure and check yours.
- Backset distance: This is the space from the door's edge to the center of the deadbolt hole. Common sizes are 2⅜" and 2¾".
- Existing deadbolt prep: If your door already has a deadbolt hole, you're ready to go. If not, drilling one adds significant complexity.
- Smart home compatibility: Check whether the lock works with your existing system (Alexa, Google Home, HomeKit).
- Door material: Wood, metal, and fiberglass doors sometimes have different requirements—check the manufacturer's specs.
Tools and Materials for Smart Lock Installation
Here's the good news: most installations only require a Phillips head screwdriver. Gather everything before you start so you're not hunting for tools mid-project.
- Phillips head screwdriver (primary tool)
- Flathead screwdriver (some models)
- Drill with bits (only if adjustments are needed)
- Tape measure
- Pencil for marking
- Batteries (usually AA, often included with the lock)
- Smartphone with the manufacturer's app downloaded
Step-by-Step Smart Lock Installation Guide
With your tools ready and compatibility confirmed, it's time for the hands-on work.
1. Remove Your Existing Deadbolt
Start by unscrewing the interior thumb turn. Then remove the exterior cylinder and pull out the deadbolt mechanism from the door's edge. Finally, unscrew the strike plate from the frame.
Keep your screws organized in a small bowl or magnetic tray. Before moving forward, close the door to confirm it latches properly without the old hardware. If the door sticks or doesn't close smoothly, address that problem first.
2. Prepare the Door and Frame
Clean all surfaces where the new components will sit. Dust and debris can prevent a flush fit.
Check that existing holes align with your new lock's specifications. If the new strike plate sits differently than the old one, you may have to chisel the frame slightly. Test-fit the new deadbolt before committing to final installation.
3. Install the Exterior Assembly
Insert the new deadbolt mechanism into the door's edge. Look for an "UP" marking and make sure it faces upward.
If your model has a cable, feed it carefully from the exterior keypad through the deadbolt hole to the interior side. Position the exterior keypad flush against the outside of the door.
4. Attach the Mounting Plate
Secure the interior mounting plate using the screws that came with your lock. Make sure the cable from the exterior assembly stays accessible through the plate.
The plate has to sit completely flush against the door. Any gap will cause problems when you attach the interior assembly.
5. Install the Interior Assembly
Connect the cable to the interior unit. Align the unit with the mounting plate and secure it with the final screws.
Avoid overtightening—that can warp the components and cause the lock to bind. When you're done, the thumb turn on the interior side should move freely without any resistance.
6. Insert Batteries and Test the Lock
Install batteries according to the manufacturer's directions and attach the battery cover. Before opening the app, test the physical lock first.
Use the thumb turn to extend and retract the deadbolt. It should move smoothly without grinding or sticking. If something feels off, adjust the strike plate or check your alignment. Don't move to programming until the mechanical operation works perfectly.
How to Set Up and Connect Your Smart Lock
With the physical installation complete, the next step is digital configuration.
1. Download the Manufacturer App
Find the correct app for your lock brand in the App Store or Google Play. Schlage Home, Yale Access, Kwikset App, and August are the most common. Create your account before starting the pairing process.
2. Create Your Account and Pair the Lock
Follow the in-app prompts to add your new device. Most locks enter pairing mode automatically after you install the batteries, though some require pressing a specific button.
Keep your phone close to the lock throughout pairing—within a few feet works best.
3. Configure Access Codes and User Permissions
Set your master code first. Then create individual codes for family members, guests, or service providers.
Naming each code makes tracking easier. "Dog Walker" or "Tuesday Cleaning" tells you exactly who used which code. Many locks also support temporary codes that expire automatically—useful for one-time visitors or short-term rentals.
4. Connect to WiFi or Your Smart Home Hub
For remote access and voice control, connect the lock to your WiFi network through the app. This is also where you'll link to Alexa, Google Home, or HomeKit if you use those systems.
Once connected, test the remote lock/unlock feature while you're away from home (or at least outside Bluetooth range) to confirm everything works.
Troubleshooting Common Smart Lock Installation Problems
Even careful installations can hit snags. Here's how to fix the most common issues.
Lock Does Not Align with Strike Plate
The deadbolt won't extend fully into the frame. This is the most frequent DIY problem.
Try repositioning the strike plate or chiseling the mortise (the recessed area in the frame) a bit deeper. Also check whether the door itself has sagged on its hinges over time.
Deadbolt Will Not Extend or Retract Smoothly
Grinding or resistance when the lock operates points to an alignment issue. Verify the tailpiece (the bar connecting the interior and exterior assemblies) has the correct orientation and length. Make sure the interior assembly seats properly on the mounting plate, and check for any wires or debris in the way.
Batteries Drain Quickly After Installation
If fresh batteries die within days, something's wrong. The most common cause is motor strain from misalignment—the lock is working too hard to operate.
Weak WiFi signal at the door can also drain batteries fast, since the lock constantly tries to reconnect. And if the door doesn't close smoothly, the lock fights against that resistance every time it engages.
Smart Lock Will Not Connect to WiFi or Bluetooth
First, confirm the lock is actually in pairing mode. Then try moving your router temporarily closer to the door to boost signal strength.
Check for interference from other electronic devices nearby. Finally, verify that the manufacturer's app has location and Bluetooth permissions enabled in your phone's settings.
When to Hire a Professional for Smart Lock Installation
Many smart locks are genuinely DIY-friendly. However, certain situations call for professional help—nearly one-third of consumers turn to professionals after failing at DIY installation:
- Non-standard doors: Metal doors, extra-thick doors, or doors without existing deadbolt prep
- Complex integrations: Multi-lock systems or connections to a security system
- High-security requirements: Proper installation ensures warranty validity and maximum protection
- Time constraints: Professional installation typically takes under an hour with guaranteed results
- Avoiding costly mistakes: Improper installation can damage the door, frame, or lock itself
Tip:
If your door sticks, doesn't close properly, or has visible frame damage, address those issues before installing any smart lock. A lock is only as secure as the door it's mounted on.
Get Expert Smart Lock Installation in Miami
Our licensed, insured technicians install smart locks daily across Miami-Dade County. We work with all major brands—Schlage, Yale, Kwikset, August, and more.
Every installation includes:
- Compatibility assessment
- Professional mounting and alignment
- Complete app setup and configuration
- User training so you're confident with your new system
- 100% satisfaction guarantee
Ready to upgrade your home security? Contact 305 Locksmith today! or call (305) 539-0439 for a free estimate.
Frequently Asked Questions About Smart Lock Installation
Can I install a smart lock myself?
Yes, most smart locks are designed for DIY installation and typically require only a screwdriver. That said, professional installation ensures perfect alignment and optimal security—especially important for non-standard doors or complex setups.
How much does professional smart lock installation cost?
Costs vary depending on lock type and door condition. Contact a local locksmith for an accurate quote that includes labor and any necessary door or frame adjustments.
Do smart locks work during a power outage?
Yes. Smart locks run on batteries, so they operate independently of your home's electrical power. WiFi-dependent features like remote access won't work unless your router has backup power.
Will a smart lock fit my existing deadbolt hole?
In most cases, yes. Smart locks are designed for standard door preparations. Always measure your door's thickness and backset distance before purchasing to confirm compatibility.
How long does professional smart lock installation take?
A professional locksmith typically completes full installation and setup in under an hour, including physical mounting, app configuration, and testing of all functions.