Why do Lake View Terrace homes need a deadbolt installed or replaced?
A deadbolt is the one lock on a house that does real work against forced entry. The spring latch in a doorknob can often be slipped with a stiff card or pried back. A properly installed deadbolt throws a solid steel bolt into the door frame and holds the door shut on its own. When people call us about deadbolt installation, it usually comes down to a few situations: the house has only a knob lock and no deadbolt at all, an old deadbolt has worn loose or started to stick, a door was never bored for one, or someone has just moved in and wants a lock that no previous occupant holds a key to.
Those situations come up often in Lake View Terrace because of the housing. Much of the neighborhood is 1950s-1970s ranch homes, and doors and hardware from those decades have had a long time to wear, settle and get painted over. A deadbolt that worked fine years ago may now sit loose in its bore, rub against a frame that has shifted, or have a keyway so worn that the key barely turns.
This page is about the deadbolt itself: putting in a new one, replacing a worn one, and choosing between single and double-cylinder. If your actual problem is a lockout, a broken key or a full hardware overhaul, we handle those too, but we will keep this page focused on deadbolts.
Single or double-cylinder: which deadbolt fits your door?
A single-cylinder deadbolt has a keyhole outside and a thumb-turn inside. It is the right choice for most front and back doors, and it is what we recommend for most homes, because anyone inside can open the door in a second without hunting for a key.
A double-cylinder deadbolt takes a key on both sides. People ask for one because of glass. If a door has a window or sidelight within arm's reach of the thumb-turn, a burglar can break the glass, reach through and turn the lock. A keyed inside cylinder defeats that. The tradeoff is real, though: in a fire or other emergency, you need a key in your hand to get out. Fire and building rules can restrict double-cylinder deadbolts on residential exits, and the details depend on the situation, so we talk it through with you before installing one instead of simply selling it. If you do choose one, make sure everyone in the household knows where the key is kept and can reach it quickly.
Here is how we usually think about the choice:
- Single-cylinder: key outside, thumb-turn inside. Best for solid doors with no glass within reach.
- Double-cylinder: key on both sides. Worth considering where glass sits close to the lock, with the emergency-exit tradeoff fully understood.
- Glass near the lock, another route: sometimes a single-cylinder deadbolt plus a stronger or relocated pane is the safer overall answer, and we will say so if that is the case.
- Keyed-alike sets: a knob and deadbolt can be keyed to the same key so you are not carrying a ring of keys for one door.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366How does deadbolt installation work, step by step?
The order matters, because most deadbolts that fail early were not bad hardware. They were badly aligned. This is how we approach a job, whether the door already has a hole for a deadbolt or not.
- Talk through the door. Which door is it, what is on it now, is there glass nearby, who needs keys, and how does everyone get out in an emergency.
- Inspect the door and frame. We check the material, thickness and condition of the door edge, and whether it already has the two holes a deadbolt needs: a large one through the face and a smaller one into the edge. If it does, we measure the backset so the new lock fits the existing bore.
- Choose the hardware. We settle on the grade, finish, keyway and single or double-cylinder, based on what you told us and what we see on the door.
- Bore or correct the holes if needed. We use a hole saw and a door-edge guide so the holes are square and centered. Sloppy boring is what makes a bolt bind later.
- Mount the lock. The latch goes into the edge, the cylinder through the face, and the thumb-turn or second cylinder on the inside, with the connecting bar seated so nothing is forced.
- Set the strike plate. We cut a clean recess in the frame and drive long screws into the framing behind it, not just the trim, because that is what actually resists a kick.
- Test and hand over. With the door closed, the bolt should throw fully and retract smoothly with no lifting, pushing or dragging. We confirm every key works and show you how it operates.
What affects the cost of deadbolt installation in Lake View Terrace?
We do not put prices on a web page, because the real cost depends on the door in front of us. What we can do is tell you exactly what moves the number, so nothing about the quote surprises you. If you describe the door when you call, we can usually tell you which of these apply before we arrive.
- Existing bore or new bore: swapping a deadbolt into holes that are already there is usually the more economical route. Boring a new door takes more labor.
- Door material and condition: solid wood, hollow-core, metal and fiberglass all drill differently, and a door that has dried out or warped may need extra work to seat the lock.
- Hardware grade and brand: a basic residential deadbolt and a heavier, pick-resistant one are not the same product, and the price gap reflects that.
- Single or double-cylinder, and keyed-alike: matching several locks to one key adds some work.
- Number of doors and keys: several doors in one visit is generally more efficient than coming back.
- Frame and strike repair: if the frame is cracked or the strike area is weak, reinforcing it is part of making the lock actually work.
- When and where: after-hours calls and longer drives to reach you factor in, and we will tell you plainly how.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366Should you replace the deadbolt, rekey it, or upgrade it?
Not every deadbolt problem needs a new deadbolt. If yours turns smoothly and the only worry is who still has a key, rekeying the lock changes the internal pins so old keys stop working, without buying new hardware. That is often the lighter-cost option for a new move-in.
Replacement makes sense when the deadbolt is worn out, loose in the door, corroded, damaged from an attempted break-in, or simply a low-grade model you would rather not trust. Deadbolt replacement is also a good moment to move up in quality. If security is the priority, ask about high-security locks, which use tighter-tolerance keyways and harder internal parts. If you want to stop carrying keys, a keypad or app-controlled deadbolt is possible through smart lock installation, though a smart lock still depends on a well-aligned door and a solid strike, so the basics above apply just the same.
We will tell you honestly which of the three your situation calls for. If a rekey solves it, we would rather rekey than sell you a lock you do not need.
Where in Lake View Terrace do we install deadbolts?
We work throughout Lake View Terrace, ZIP 91342, from the Hansen Dam area to the Foothill Boulevard corridor, the Wentworth Street equestrian corridor and the Little Tujunga Canyon area, plus the edges near Shadow Hills and near Kagel Canyon. The neighborhood is about 21 miles from our Westwood storefront, and we serve it the same way we serve any of the 140 cities on our map.
Different parts of the neighborhood tend to want different things. Canyon-edge properties near Little Tujunga Canyon sit on larger, exposed parcels, and ranch homes there often have an original knob and a thin deadbolt, or no deadbolt on the back and side doors at all. When a new owner wants those homes rekeyed, it is common to look at the deadbolts at the same visit, because there is no point rekeying a lock that is loose in a worn bore or a frame that gives way before the bolt does.
Along Wentworth Street, horse-zoned lots come with barns, corrals and long gated driveways. A deadbolt belongs on the house, and often on a tack room or barn side door too, as long as the door itself is solid enough to hold one. The driveway gate is a separate problem with different hardware, and our gate lock repair page covers that side of the property.
Along Foothill Boulevard, apartment and condo complexes mean many doors with many different tenants over the years. Property owners who want consistent, properly installed deadbolts across units can read about how we work with landlords and property managers. Tenants should check their lease and ask the landlord before changing any lock.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366How do Santa Ana winds, dust and summer sun affect a deadbolt?
The Hansen Dam basin gets strong seasonal Santa Ana winds, and they carry dust and grit that gets into exterior hardware. On a deadbolt, that grit works into the keyway and the bolt channel, and over time the lock starts to feel gritty, then stiff. Exposed back doors and side doors on open lots take the worst of it. If you are choosing hardware for an exterior door here, a sturdier model with a tighter-fitting keyway tends to hold up better than the thinnest builder-grade lock.
Summer is the other factor. Foothill heat dries out wood doors on unshaded lots, and a wood door that shrinks, swells or warps with the seasons can move just enough that the bolt no longer lines up cleanly with the strike. If your deadbolt drags in July and works in February, the lock may be fine and the door is what moved. Sometimes adjusting the strike plate fixes it, and sometimes the door needs more work. We check for this during installation so the alignment has a little room to spare.
A practical habit: if a deadbolt starts to feel stiff, do not force it and do not spray oil into it, because oil holds dust. Call us and we can tell you whether it needs cleaning, adjusting or replacing.
Why call Wilshire Lock & Key for a deadbolt?
We have been in business since 1987, and our storefront at 10740 Wilshire Blvd in Westwood is a real place with real people, backed by mobile service vans that come to you. When you call (213) 577-1366, you are reaching us, not a call center that sells your job to whoever picks it up. There are no dispatch middlemen between your phone call and the technician at your door.
David, the owner and lead technician, oversees the work. That matters on a job like this, because deadbolt installation is a craft where small errors, like a hole a few degrees off or a strike screwed into trim instead of framing, show up months later as a lock that sticks.
Our phones are answered 24 hours a day, 7 days a week, year-round. If a deadbolt has failed or been damaged and you cannot secure the house tonight, tell us that on the call, because it may be an emergency locksmith situation and we will treat it that way. For planned work, our mobile locksmith vans come to your property, and describing the door on the phone helps us bring the right hardware.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366What should you ask any locksmith before they start?
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 it, including us, and you can check it with BSIS yourself. It is a reasonable question and a good one to ask before anyone drills into your door.
A few more things worth asking: what will the total be before work starts, what grade is the deadbolt being installed, and whether the locksmith will test the lock with the door closed before leaving. A professional will not mind any of these. A locksmith who gets vague about them is telling you something.
- Ask for the BSIS LCO license number.
- Ask for the cost and what it includes before work begins.
- Ask which hardware grade and brand is going on your door.
- Ask to see the bolt throw and retract smoothly with the door shut.
Frequently asked questions
How long does a deadbolt installation take?
It depends on the door. Swapping a deadbolt into holes that already exist is a fairly short job. Boring a door that never had one, or repairing a frame, takes longer. We will tell you what to expect once we know what the door needs.
Can you install a deadbolt on a door that does not have one?
Usually yes. The door has to be thick and solid enough to take the two holes without weakening it. A thin or hollow door may need reinforcement first, and we will tell you plainly if a door is not a good candidate.
Is a double-cylinder deadbolt a good idea for my home?
Only in specific cases, mainly when glass sits within reach of the thumb-turn. The risk is that you need a key to leave in an emergency, and some rules limit them on residential exits. We discuss the tradeoff before installing one.
Should I replace my whole lockset or just the deadbolt?
Often just the deadbolt, since the knob and deadbolt are separate mechanisms. If both are worn or you want them to match, replacing the locks together can be tidier, and we can key them to one key.
What does deadbolt installation cost?
It depends on whether the door is already bored, the door's material and condition, the hardware grade, how many doors and keys are involved, and the time and distance of the visit. We explain what applies to your door and give you the cost before we start.
Will a new deadbolt work on an old wood door that has warped in the sun?
Often yes, but alignment is the challenge. A door that has moved with heat and dryness may need the strike adjusted or the frame corrected so the bolt throws cleanly. We check this during the visit instead of just bolting a lock on.
Can you put a deadbolt on a barn or tack room door?
If the door itself is solid enough to hold one, yes. Driveway and pasture gates are different, since they use different hardware and are exposed to more dust and weather. We look at the actual door or gate before recommending anything.
I rent in a Foothill Boulevard complex. Can I have a deadbolt installed?
Check your lease and talk to your landlord first, because most leases restrict lock changes. With their permission, we can install or replace the deadbolt, and the landlord may want a key copy.
More locksmith help in Lake View Terrace
Deadbolt Installation near Lake View Terrace
Reviewed by David, Owner & Lead Technician, Wilshire Lock & Key — in the locksmith trade since 1987.
Last updated 2026-10-11.
