What does a smart lock installation actually involve?
A smart lock is a deadbolt or handle set where the key cylinder, or the whole lock, has been paired with electronics. Some open with a keypad code. Some open from your phone over Bluetooth. Some join your home Wi-Fi so you can lock, unlock and check the door from an app, and many combine all three. People search for the same job under different names: keyless entry, a digital door lock, an electronic deadbolt, a lock with a keypad. Underneath, it is a mechanical lock, a motor or electronic latch, a power source, and software that has to be set up correctly.
The part that trips up most do-it-yourself installs is rarely the electronics. It is the door. Bore holes that sit a little off, a bolt that drags in the strike plate, a door that has swelled or shrunk with the season, a latch that only catches if you lift the handle. Your hand can muscle through a misaligned door. A motorized deadbolt cannot, so it stalls, burns through batteries, or throws an error. A good installation fixes the door first and the lock second.
This page covers the electronic side: choosing, installing, configuring and troubleshooting smart locks. If what you want is a plain mechanical deadbolt with a key, that is a different job, and we cover it under deadbolt installation in South El Monte.
Which kind of smart lock suits your door and your household?
There is no single best smart lock. The right one depends on who uses the door, how they like to unlock it, and what is already on the door. Here is how we explain the main types to customers:
- Keypad deadbolts: you enter a code, no phone required. They suit households where some people will never use an app, such as grandparents, kids, or a cleaner who needs a code of their own. They run on batteries and have a mechanical key override on most models.
- Bluetooth locks: the lock talks to your phone when you are near the door. They do not depend on your internet connection, but remote control from across town is limited or not available.
- Wi-Fi locks: these connect to your network so you can lock and unlock from anywhere, issue temporary codes, and get notifications. They depend on your router and the maker's app or service, and they use more battery than a keypad-only lock.
- Retrofit units: some products keep your existing deadbolt on the outside and swap only the interior thumbturn for an electronic one. They can make sense on a door you do not want to drill again, or when you want to keep your current keyed cylinder.
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Call (213) 577-1366Is the lock you picked right for the door you have?
Sometimes customers have already bought a lock and call us to install it. That is fine, and we will tell you plainly if it is a poor match, for example a model that needs a door thickness or backset your door does not have, or one that will not clear a security screen door standing in front of it.
Smart-home compatibility is another place where honesty matters. Whether a lock works with a voice assistant, a hub, or a particular phone depends on the model and its software version. We check compatibility before we start and we do not promise a feature the lock does not have. If your goal is something specific, such as codes that expire for guests, tell us when you call and we will confirm the lock can do it.
How do we install and set up a smart lock?
Every door is a little different, but the sequence is consistent. This is what you can expect when we arrive:
- We talk through how the door is used: who comes and goes, whether you want a keypad, an app, or both, and what is already installed.
- We inspect the door, the bore holes, the latch and the strike plate, and check how the door closes and whether anything, like a screen door, interferes.
- We correct any alignment or fit problems so the bolt extends and retracts freely by hand before any electronics go on.
- We remove the old hardware and install the new lock, making sure the exterior and interior assemblies are seated, level and snug without binding.
- We install fresh batteries, run the lock through its setup, and pair it with your phone or Wi-Fi network if you chose an app-connected model.
- We set up your codes, user access and any temporary codes you want, and then test the lock repeatedly, with the door open and closed, from the keypad, from the app and with the mechanical key if the model has one.
- We walk you through everything: the backup key or external power option, the low-battery warnings, and what to do if the phone or Wi-Fi is down. We leave you with the keys and codes organized so you know exactly what you have.
What affects the cost of smart lock installation?
We do not quote prices on a web page because the real number depends on the door and the lock. After a short conversation about what you have and what you want, we can explain what applies to your situation. These are the factors that move the cost up or down:
- The lock itself: a basic keypad deadbolt and a feature-rich Wi-Fi lock with several access methods are very different products.
- Whether you supply the lock or we do: if you bought it, we install it; if we supply it, the hardware is part of the job.
- The condition of the door: a door that needs bore holes corrected, a patched edge, or a realigned strike takes more work than a clean swap.
- Whether it is a new installation or a replacement: replacing an existing deadbolt is generally the more economical route than preparing a door that has never had one.
- The number of doors and the amount of setup: a single front door is simpler than a front door, back door and garage entry with separate codes.
- Network and app setup: connecting a Wi-Fi lock to a weak signal, a changed router, or multiple user accounts can add time.
- When you need us: a visit scheduled in advance is different from a call in the middle of the night.
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Call (213) 577-1366What about smart lock repair, replacement and troubleshooting?
Smart locks fail in different ways than mechanical ones, and many problems are fixable without replacing anything. The calls we hear about most are a keypad that has stopped responding, batteries that drain far too fast, an app that no longer finds the lock after a new phone or a new router, a bolt that hesitates or stops partway, and a lock that works on the bench but not once the door is closed. Often the cause is alignment, a weak battery, or a pairing that needs to be redone. Sometimes the motor or the keypad itself has worn out. We diagnose first and tell you which it is.
Replacement makes sense when the unit is damaged, when parts are no longer available, or when the maker has stopped supporting the app the lock depends on. If you are deciding between fixing and replacing, we will give you an honest read. For lock problems that are not electronic, such as a sticking cylinder or a worn latch, see our lock repair service.
One more situation worth planning for: a dead battery with no backup key in your pocket. Many models have a mechanical key or external terminals for exactly this reason, but not all do. If you are already locked out, our house lockout service is the page to read, and the phone is answered around the clock.
What should South El Monte homeowners know before going keyless?
South El Monte is a compact city where modest postwar single-family tracts sit right beside light-industrial parcels. Most homes date from the 1940s to the 1960s, and that matters for smart locks. Around the New Temple Park residential area and elsewhere in ZIP code 91733, older wood doors are often bored for hardware that was standard decades ago, and they have been repainted, rehung and re-hinged more than once. Before a motorized lock goes on, we check that the door sits square in its frame and that the bolt lines up with the strike.
Security screen doors are a common retrofit on homes like these, and they are the most frequent surprise on a smart lock job. A screen door that swings close to the main door can block access to a keypad, catch on the lock's exterior housing, or force you to unlatch one door before you can reach the other. We look at the clearance and, if needed, recommend a lock with a different profile or a keypad position that works with the screen.
Climate also plays a part. Summers here are hot and dry in the inland basin, with some evening cooling from the open space of Whittier Narrows. Wood residential doors and metal doors both expand and contract with that heat, and a deadbolt that slides easily in the morning can bind in the afternoon. A motor will not tolerate that for long, which is why we set clearances with the door's seasonal movement in mind and test the lock more than once.
If you live near New Temple Park and a home lockout is what worries you, a keypad lock can remove the problem of forgetting a key. It adds a new one to plan for: keep fresh batteries on hand and know where your backup key or external power option is.
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Call (213) 577-1366Can smart locks work for shops, auto garages and small manufacturers?
A large share of South El Monte's building stock is commercial and industrial, so business owners ask us about this too. The honest answer is that it depends on the door. A consumer smart lock can suit an ordinary swinging office or back-room door. It is not built for a roll-up door, a warehouse hasp, or a door that dozens of people open every day. In the Rush Street industrial district, that kind of hardware calls for different equipment.
Along Garvey Avenue and Santa Anita Avenue, small manufacturers and auto shops often want the same few things: a way to give employees access without handing out more keys, and a way to take access away when someone leaves. If that is your situation, the better fit is usually a proper access system, and you can read about access control installation. Some owners pair that with a mechanical master key system for the rest of the building, so one key opens what it should and nothing more.
If you manage rental property, smart locks also let you change codes between tenants rather than rekeying every time. We cover that setup on our page for landlords.
Why call Wilshire Lock & Key for smart locks?
We have been in business since 1987, and we have watched locks go from brass keys to keypads to apps. That history matters because a smart lock is still a lock: the door, the bolt and the fit decide whether the electronics will last.
We are one company. The person who answers the phone works for us, the technician who arrives works for us, and there is no dispatch middleman passing your job to whoever is free. Our storefront is at 10740 Wilshire Blvd in Westwood, about 26 miles from South El Monte, and we serve South El Monte with mobile locksmith vans so the work happens at your door. David, the owner and lead technician, oversees our work.
Our phone line is answered 24 hours a day, 7 days a week, year-round, at (213) 577-1366. Installations are easiest to plan in advance, but if a smart lock has left you stuck at night or on a weekend, call anyway.
How should you check any locksmith before they install a smart lock?
California requires locksmith companies to hold a license from the Bureau of Security and Investigative Services, known as a BSIS LCO license. Ask any locksmith for their license number before they touch your door, and ask the same of us. You are about to hand someone the access codes to your home, and it is reasonable to know who they are.
Before you call, it helps to have a few details ready: the make and model of the lock if you already bought one, what type of door you have (wood, metal, with or without a screen door in front), and how you want to unlock it. Photos of the door and the lock area help even more.
Frequently asked questions
Can you install a smart lock I bought myself?
Yes. We install locks you supply as well as locks we supply. We check that the model fits your door's thickness and bore, confirm it works with any screen door in front, and set it up and test it. If it is a poor match, we will say so before cutting or drilling anything.
Will a smart lock work with my security screen door?
Often yes, but it needs a clearance check. Security screen doors are a common retrofit on South El Monte's older homes, and some swing close enough to block a keypad or catch on the lock's housing. We look at how both doors move and recommend a lock that fits.
What happens if the battery dies or the Wi-Fi goes down?
Most smart locks have a backup: a mechanical key, external battery terminals, or a keypad that works without a network. Wi-Fi outages usually affect only remote features, not the lock itself. We show you your lock's backup during setup and recommend replacing batteries when the low-battery warning appears.
Do I need Wi-Fi to use a smart lock?
No. Keypad locks and many Bluetooth locks work with no network at all. You need Wi-Fi only if you want remote control, notifications, or the ability to issue codes while you are away. We help you choose the type that matches how you will use the door.
Are smart locks secure?
A smart lock is only as secure as its mechanical hardware, its software and how you manage codes. No lock is impossible to defeat. A well-fitted deadbolt, a sound lock design and good habits, like not sharing a code carelessly and keeping the app updated, matter more than any single feature. We will explain the trade-offs honestly.
Can a keypad lock go on an older wood door?
Usually, yes. Many homes in South El Monte date from the 1940s to the 1960s, and their doors are often bored for older hardware. We inspect the bore, the edge and the frame, correct what needs correcting, and tell you if the door itself is the limiting factor.
How long does a smart lock installation take?
It depends on the lock, the door and how many users and devices you want set up. A straightforward swap on a well-fitted door is usually completed in one visit. A door that needs alignment work or a Wi-Fi lock on a weak signal can take longer, and we will explain why when we see it.
Do you service smart locks you did not install?
Yes. We troubleshoot and repair smart locks regardless of who installed them, and we will tell you honestly whether a repair or replacement makes more sense. Some units cannot be repaired economically, especially if parts or app support are discontinued.
Do you handle smart lock calls at night or on weekends?
Our phone at (213) 577-1366 is answered 24 hours a day, 7 days a week. Planned installations are easier to schedule during the day, but if a lock fails and you cannot get into or secure your property, call and we will tell you what we can do.
How do I know a locksmith is legitimate before they install a smart lock?
Ask for their BSIS LCO license number. California requires locksmith companies to hold that license. Also ask who will be doing the work, whether they will come to your address, and what factors affect the final cost, so there are no surprises at the door.
More locksmith help in South El Monte
Smart Lock Installation near South El Monte
Reviewed by David, Owner & Lead Technician, Wilshire Lock & Key — in the locksmith trade since 1987.
Last updated 2026-10-11.