Why a deadbolt is the first thing worth upgrading on an exterior door
The latch in a standard doorknob is there to hold a door shut, not to keep anyone out. It is a beveled, spring-loaded tongue that can often be pushed back with a thin piece of plastic or a screwdriver, and a hard kick tends to split a thin jamb right at the strike. A deadbolt works differently. It is a solid steel bolt that extends into the door frame and stays there until a key or thumb-turn pulls it back. Installed correctly, it is the part of the door that does the real work.
Deadbolt installation is what we do when an exterior door has no deadbolt at all, when the existing one is loose, binds, or was fitted crooked, or when you want to move from a single-cylinder to a double-cylinder setup. Hawaiian Gardens fits the picture well. It is one of the smallest and densest cities in the county, with post-war houses, duplexes, and modest apartment buildings packed close together. In that kind of neighborhood the front and back doors are often the only real barrier between a room and the street or a shared walkway. This page explains how we approach the work, what changes the cost, and what to expect when you call.
Single-cylinder or double-cylinder deadbolt: which one should you choose?
A single-cylinder deadbolt takes a key on the outside and has a thumb-turn on the inside. It is the right choice for most doors, because anyone inside can leave quickly without hunting for a key. A double-cylinder deadbolt takes a key on both sides. People ask for double cylinder installation mainly when there is glass in the door, or a window or sidelight within arm's reach of the lock. Someone could break the glass, reach in, and turn a thumb-turn. With a keyed cylinder on the inside, that reach-in trick does not work.
The downside is real, and we will tell you about it before we drill anything. In a fire or other emergency, a lock that needs a key from both sides can trap people inside. Many building and fire codes restrict keyed-both-sides locks on doors that serve as a required exit, and rental properties often have their own rules on top of that. Check with your landlord, property manager, or local building department if you are not sure. If a double-cylinder lock does make sense for your door, a common practice is to keep the key in the same spot every time, near the door but out of sight and out of reach from outside.
- Choose single cylinder if the door is solid, has no glass nearby, and you want the fastest and safest way out from inside.
- Consider double cylinder if there is breakable glass within reach of the lock and the door is not a required exit, or your landlord or code allows it.
- Consider reinforcing or replacing the glass, or adding a security film, if the only reason for double cylinder is the glass. That can let you keep a thumb-turn.
- Ask us if you are undecided. We would rather talk it through than install something that creates a safety problem.
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Call (213) 577-1366How we install a deadbolt, step by step
Every door is a little different, especially in homes built decades ago, so we do not treat this as a ten-second swap. This is the order we work in.
- We talk through the door with you: which door it is, what hardware is on it now, who uses it, and whether you own or rent.
- We inspect the door itself: its thickness, material, and condition, whether it is solid or hollow, any existing holes, the state of the jamb, and how much clearance a security screen door leaves.
- We choose the hardware with you: single or double cylinder, the grade of the lock, the backset the door needs, the finish, and whether it should be keyed to match your other locks.
- We mark and drill using a template and a door jig, so the large face hole and the smaller edge hole come out square and centered. Crooked holes are what make a deadbolt drag.
- We fit the bolt, the lock body, and the cylinder or cylinders, and fasten them with the through-screws that hold the lock together across the door.
- We cut and set the strike plate, and we anchor it with long screws that reach the framing behind the jamb rather than just the thin trim wood. This step does more for kick resistance than almost anything else.
- We test it the way it will be used: door open and closed, full bolt extension, no rubbing, smooth key action from each side, and the screen door swinging past it without a collision.
- We hand over the keys, show you how the lock works, and tell you what to watch for as the door and hardware settle in.
Deadbolt replacement: when to swap the one you already have
Deadbolt replacement is often simpler than a first-time installation, because the holes already exist. Most modern deadbolts are made to fit standard bore sizes. Older doors, or ones that were cut by hand, sometimes need the openings adjusted, or a different bolt or faceplate to cover old marks. We check before we promise a clean swap.
You do not need a lock to fail completely before replacing it. These are the usual reasons people call us:
- The key sticks, grinds, or has to be wiggled to turn.
- The thumb-turn spins loosely, or the bolt does not fully extend.
- You have to lift or push the door to get the bolt to line up.
- The lock is loose on the door and rattles when you close it.
- You have lost keys, or you do not know who has copies.
- The finish is pitted or the cylinder is worn after years of use.
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Call (213) 577-1366Is replacement always the right answer?
Not always. If the lock is sound and the only worry is who holds a key, changing the pins inside the existing cylinder is usually the more economical route. That is a different job, and we cover it on our lock rekey page. If you want a keypad or app-controlled lock on the door instead, that is covered under smart lock installation. And if you are shopping for a lock that stands up to picking, drilling, and bumping, ask us about high-security locks, because that changes both the hardware and the cost. For other lock types around the home, our lock installation page lays out the wider range.
What affects the cost of deadbolt installation?
We do not quote numbers on a web page, because the same phone call can describe two very different jobs. Here is what moves the cost up or down, so you can see where an estimate comes from.
We talk through the likely cost on the phone as far as your description allows, and we go over it again at the door before we start cutting.
- New installation versus replacement. Drilling a fresh door takes more time and care than swapping into existing holes.
- Door condition and material. A solid wood or solid-core door takes a deadbolt well. A thin or hollow door may need a reinforcement kit, or may not be a good place for a deadbolt at all.
- Frame and jamb condition. A split or soft jamb has to be repaired or reinforced, or the new deadbolt will fail at the same weak point as the old latch.
- Hardware grade. Deadbolts are rated by a national standard, and a higher-rated lock costs more than a basic one. The better grades are built to resist harder attacks and heavy use.
- Single versus double cylinder, plus finish and brand.
- How many doors. Several doors in one visit usually make better use of our time than one door at a time, and we can key them alike if you prefer a single key.
- Keying. Matching your existing keys, or setting up a new key, affects the work involved.
- Timing and location. A scheduled visit is a different job from a late-night call, and travel to your address plays a part.
Deadbolt installation around Hawaiian Gardens
Hawaiian Gardens covers roughly one square mile in the 90716 ZIP code. A lot of what we think about for deadbolts here comes from the kind of buildings that dominate it. Much of the housing dates from the 1940s through the 1960s, and security screen doors are common. That matters at the door itself. Many older houses in that era's style came with a plain knob latch and no deadbolt, or with a lock that has been replaced once or twice over the decades. A deadbolt near a screen door needs the right clearance for the handle and the door swing, and we measure for that before we pick the hardware.
In the post-war homes around the Fedde Sports Complex and Elaine Avenue, a common scenario is a rekey that turns into something more. Someone calls to change who has a key, and we find that the door has only a latch, or an old deadbolt that is barely held in. Adding a properly fitted deadbolt at the same visit is often the sensible move. Near Pioneer Park and the Civic Center area along Pioneer Boulevard, the doors we would expect to see are in small single-family homes and duplexes. There, the main questions are door thickness, strike strength, and whether the existing door can hold a deadbolt at all.
Along the Norwalk Boulevard corridor, many of the buildings are modest apartment complexes, and the story is different. Tenants there are often locked out, and a deadbolt that was never reliable may be part of the reason. If you are stuck outside right now, our apartment lockout page is the place to start. If you own or manage rental units, deadbolt work often connects to key control, and our locksmith for landlords page covers how we handle properties with multiple doors and turnovers. Shared pedestrian gates and banked mailboxes are common at multi-unit properties here too. Those are separate jobs from a door deadbolt, and we can quote them on their own.
Small rental duplexes often have a sliding door or a screen door with a weak lock next to the main entry. A deadbolt on the main door only protects that door, so we look at the whole entry when we are on site, even if the work order is for one lock. Businesses along the Carson Street corridor, near The Gardens Casino, fall under commercial hardware rather than residential deadbolts, and we route them accordingly.
On climate, Hawaiian Gardens sits on the flat coastal plain several miles inland. The marine layer brings damp mornings, but salt-air corrosion is modest compared with a beach city, so a standard finish holds up well on most exterior doors. Summer heat is moderate, and wood doors move only a little through the seasons. That means a well-aligned bolt should not start binding every August. We still test the bolt at the end of the job, because poor alignment is the more common cause of a sticky deadbolt than the weather.
Our storefront is at 10740 Wilshire Blvd in Westwood, roughly 30 miles from Hawaiian Gardens, and our mobile vans carry the hardware to your door. Because we cannot always guess the door you have, a short description or photo on the phone helps us bring the right backset, bolt, and strike. For more on how we work in the city, see our Hawaiian Gardens locksmith page or our mobile locksmith service.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366Why call Wilshire Lock & Key for a deadbolt?
We have been in business since 1987, and we serve 140 cities across Los Angeles and Ventura counties. That is a lot of doors, and the lessons from them end up in the details: how deep to set a strike screw, when a door is a poor candidate for a deadbolt, when an alignment problem is the real cause of a sticky lock.
The people you talk to are the people who do the work. We are one company with a storefront and our own mobile vans, not a call center that passes your job to whoever is closest. David, the owner and lead technician, oversees how we do this work. The phone is answered 24 hours a day, 7 days a week, all year, at (213) 577-1366, so a broken deadbolt at night does not have to wait for business hours.
- Open since 1987, with a storefront in Westwood and mobile vans.
- One company from the first call to the finished door, with no dispatch middlemen.
- Owner David oversees the work.
- We tell you when a deadbolt is not the right fix, even when it would be an easy sale.
How to check any locksmith before they drill into your door
California requires locksmith companies to hold a license from the Bureau of Security and Investigative Services (BSIS), called a Locksmith Company (LCO) license. Ask any locksmith for their license number before work begins. That includes us. A real company will give it to you without fuss.
A few other things are worth watching for. Be wary of a company that will not describe how it prices the work, or that gives a number over the phone and a very different one on your doorstep. Ask who will actually come to your address, and what the job involves before the drill comes out. A good tradesperson explains the problem plainly and does not hurry you.
When you call us, it helps to have a few things ready:
- Which door it is, and whether it is an entry door, a back door, or a garage side door.
- Whether the door is solid wood, a heavier metal door, or a lighter hollow door.
- What lock is on it now, and whether there is a security screen door in front.
- Whether you want single or double cylinder, or you would like our advice.
- Whether you own or rent, and whether your landlord has requirements.
Frequently asked questions
How long does it take to install a deadbolt?
It depends on the door. Replacing a deadbolt in an existing, correctly sized hole is quicker than a new installation, which involves drilling, setting the strike, and testing. A door that needs jamb repair or reinforcement takes longer. We can give you a realistic idea on the phone once we know which door and what is already on it.
Can you install a deadbolt on a hollow or thin door?
Sometimes, with reinforcement, but not always. A deadbolt is only as strong as the door and frame around it. If a door is too thin or too weak to hold the bore and the bolt, we will say so and talk through options such as reinforcing it or replacing the door, instead of installing a lock that will not hold.
Do I need a double-cylinder deadbolt?
Usually not. A double-cylinder lock is mainly for doors with glass within reach of the lock. It also means you need a key to get out, which is a safety concern in a fire, and many codes restrict it on required exits. We will go over this with you and recommend single cylinder unless there is a clear reason for double.
Will a deadbolt work with my security screen door?
In most cases yes, but the screen door has to clear the handle and the bolt hardware, and it has to swing without hitting the lock. Security screen doors are common in Hawaiian Gardens, so we measure the clearance before choosing the hardware. If you can, tell us what kind of screen door you have when you call.
Can I add or change a deadbolt if I rent my home?
Often you can, but check your lease and ask your landlord first. Some landlords require approval, a copy of the key, or particular hardware, and some rentals have rules about double-cylinder locks. If you are a landlord or property manager, we can work with you on keying and key control across several doors.
Can you key the new deadbolt to match my existing keys?
In many cases, yes. We can often key a new deadbolt to match the keys you already carry, so one key works for several doors, if the hardware you choose allows it. If you would rather start fresh with a new key, we can do that instead. Tell us what you prefer when you call.
What do the deadbolt grades mean?
Deadbolts are rated by a national standard, with Grade 1 as the highest, then Grade 2 and Grade 3. A higher grade is built to take more abuse and resist harder attacks. Which grade fits depends on the door, the building, and how much protection you want. We will explain the trade-offs rather than push the top grade on every door.
Can you install a deadbolt at night or on a weekend?
Yes. Our phone at (213) 577-1366 is answered 24 hours a day, 7 days a week, all year. If your door will not lock safely, call any time and we will talk through what is needed and when we can come. Timing can affect cost, and we will explain how before work begins.
Will my door frame need work before a new deadbolt?
Sometimes. A deadbolt locks into the frame, so a cracked, soft, or loose jamb can undo the whole job. We check the frame during the inspection. If it needs repair or a reinforced strike, we will explain what we found and what it means for the work before we go ahead.
More locksmith help in Hawaiian Gardens
Deadbolt Installation near Hawaiian Gardens
Reviewed by David, Owner & Lead Technician, Wilshire Lock & Key — in the locksmith trade since 1987.
Last updated 2026-10-11.
