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Wilshire Lock & Key

24/7 locksmith · Santa Clarita, CA

Deadbolt Installation in Santa Clarita, CA

Wilshire Lock & Key installs and replaces single and double-cylinder deadbolts across Santa Clarita, CA, and we answer the phone 24 hours a day, 7 days a week at (213) 577-1366. We fit the bolt, bore or adjust the door if needed, and align everything so it throws smoothly.

  • Since 1987
  • Westwood storefront + mobile vans
  • A person answers, day or night
New deadbolt with the bolt thrown, fitted flush in a wooden door edge

What does deadbolt installation include?

A deadbolt is the lock that does the real work on an exterior door. A standard knob or lever uses a spring latch that can often be pushed back with a card or a screwdriver slipped into the gap. A deadbolt throws a solid steel bolt, usually an inch long, into the door frame, and nothing short of force can retract it. Deadbolt installation means we fit the bolt, the lock body, the cylinder and a properly anchored strike plate so the whole assembly works as one system rather than a handful of loose parts.

Our service covers three situations: a new deadbolt in a door that has never had one, deadbolt replacement where an old one is worn, loose or sticking, and a change from single to double cylinder where that actually makes sense. Every job ends with alignment. A deadbolt that is bolted on but not aligned is a common source of trouble. The bolt drags on the strike, you end up lifting or shoving the door to lock it, and the mechanism wears out sooner than it should.

If what you need is a different kind of lock, such as a knob set, a lever, or hardware for a side gate, our broader lock installation page covers that. This page stays focused on deadbolts.

Single-cylinder or double-cylinder: which should you choose?

A single-cylinder deadbolt takes a key on the outside and has a thumb turn on the inside. It is what most homes have, and it is the right answer for most doors. A double-cylinder deadbolt takes a key on both sides, so there is no thumb turn to grab.

The only real reason to choose double cylinder is glass. If your door has a window, a sidelight, or a decorative pane within arm's reach of the interior thumb turn, someone can break the glass, reach through and turn the knob. A keyed inside cylinder removes that option. If there is no glass near the lock, a double cylinder gives you very little extra security and adds a real downside.

That downside is egress. In a fire or other emergency, you have to find a key to get out, and panic makes that harder than it sounds. Building and fire codes in some situations restrict keyed-both-sides locks on exit doors, and landlords and HOAs sometimes have their own rules. Check yours before you decide. If you do go double cylinder, the usual advice is to keep a key in a fixed spot near the door, out of reach from outside, and make sure everyone in the household knows where it is.

We will tell you plainly if we think single cylinder is the better fit for your door, even when you asked for double. There are other ways to deal with glass, such as moving the lock, using a different door, or adding security film. Beyond the cylinder style, deadbolts come in different strength grades, with differing resistance to picking, drilling and forced entry. If you want the stronger end of that range, see our notes on high-security locks.

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We answer around the clock, every day of the year.

Call (213) 577-1366

When is deadbolt replacement the better call?

Not every tired deadbolt needs replacing, and not every unknown-keys situation needs a new lock. Here is how we sort it out.

Replacement usually makes sense when the lock itself is the problem. If the key turns hard even after the lock has been cleaned and lubricated, if the bolt no longer extends fully, if the body wobbles on the door, or if the finish has worn through to bare metal, you are looking at a worn mechanism. Much of Santa Clarita's tract housing still carries the builder-standard hardware that went in when the house was built, and after decades of daily use that hardware is often at the end of its life.

If the deadbolt is in good shape and your real concern is who else might have a key, such as the previous owner, a former roommate or a contractor, then changing the internal pins is usually the more economical route. That is covered on our lock rekey page. We will look at the lock before recommending either path, and if rekeying is enough we will say so.

How we install a deadbolt, step by step

Here is what actually happens when you call us for a deadbolt, whether it is a first-time install or a replacement.

  1. You call (213) 577-1366. We ask about the door: wood, metal or fiberglass, whether there is already a hole for a deadbolt, whether there is glass near the lock, and whether you want single or double cylinder.
  2. We arrive in a mobile van with the tools and hardware suited to what you described, and we look at the door and frame before touching anything. We check that the wood is sound, that the door is not swollen or warped, and that the frame can actually hold a strike plate.
  3. If this is a new install, we mark and bore the door. A standard residential deadbolt needs a large hole through the face of the door and a smaller one through the edge, and we check the backset, the distance from the door edge to the center of the lock, before drilling.
  4. We mount the lock body and the cylinder, set the mounting screws, and fit the bolt in the edge of the door so it sits flush and square.
  5. We set the strike plate in the frame. The weak point of many deadbolts is not the lock but the short screws that hold the strike into thin door-jamb wood. We use long screws that reach the framing behind the jamb wherever the frame allows it.
  6. We align and test. With the door closed, we throw the bolt repeatedly and check that it extends fully and retracts easily without you lifting or pushing the door. We adjust the strike or the door position if it does not. Then we test every key and the thumb turn if there is one.
  7. We walk you through it, hand over the keys, and clean up the shavings and screws we left behind.

Locked out or need a locksmith now?

We answer around the clock, every day of the year.

Call (213) 577-1366

What affects the cost of deadbolt installation in Santa Clarita?

We will not quote a number before we know what the job involves, and we will not give you a vague figure that changes at the door. Here is what moves the cost up or down:

  • New install versus replacement. A new deadbolt in a door with no existing hole requires boring, which takes more time and care than swapping a lock into holes that are already there.
  • Door material. Solid wood, hollow-core, steel and fiberglass doors each need different drilling methods and sometimes different hardware.
  • Lock grade. Entry-level deadbolts and higher-security models differ in materials, internal construction and resistance to attack, and the price follows.
  • Single or double cylinder. Double-cylinder models are a more specialized product, and the fitting needs a bit more care.
  • Finish and style. Matching existing hardware, or meeting an HOA's requirements on exterior finish, can narrow the choices.
  • Condition of the door and frame. A swollen door, a split jamb or an old botched bore may need repair before a deadbolt will hold properly.
  • Number of doors. Doing several doors in one visit usually makes better use of the trip.
  • Timing. Evening, overnight and holiday calls are handled differently from scheduled daytime work.
  • Keying. Keying several locks alike, so one key opens the front and back doors, adds a little work.

Why call Wilshire Lock & Key for your deadbolt?

We have been in business since 1987. That is long enough to have seen most of what goes wrong with deadbolts: cheap ones that fail early, good ones installed badly, and strike plates held in with half-inch screws.

We run a storefront at 10740 Wilshire Blvd in Westwood and send mobile service vans out to 140 cities across Los Angeles and Ventura counties. Santa Clarita is about 34 miles from our storefront, which is exactly why we work from mobile service and do not ask you to come to us.

When you call, you reach our company, not a call center that sells your job to whichever contractor picks it up. There are no dispatch middlemen between you and the person who shows up. David, the owner and lead technician, oversees the work.

One more point worth making: California requires locksmith companies to hold a BSIS LCO license. Ask any locksmith who offers to work on your home for that license number, and look at the answer you get. You should expect straight answers from us too.

Deadbolts for Saugus, Canyon Country and Valencia homes

Most of Santa Clarita is post-1965 master-planned development, with big waves of single-family construction from the 1980s through the 2000s across Saugus, Canyon Country and Valencia. Houses built in that stretch often still carry the original builder-standard hardware, and that is where many of our deadbolt calls begin: a front-door lock that has turned stiff, a back door that never got a deadbolt, or a garage entry door with only a knob.

New homeowners in Saugus and Canyon Country tract developments often start with rekeying, because they have no idea who holds copies of the old keys. That is a sensible first step. It is also the natural moment to look at the doors themselves and ask whether each exterior door has a real deadbolt with a solid strike. If one does not, adding it while we are already at the property is usually more efficient than coming back later.

Townhomes and condos near Valencia Town Center add a layer of coordination. HOA-managed communities are the norm in Santa Clarita, and some have preferences for exterior hardware finish or door appearance. Check your HOA's rules before choosing a style, and tell us what they say. We install to the standard you need, not one we assumed.

We serve all of Santa Clarita's ZIP codes, including 91321, 91350, 91351, 91354, 91355, 91387 and 91390. Fair Oaks Ranch is a typical case: homeowners there who want a smart deadbolt can read about that option on our smart lock installation page. A smart lock still needs a well-aligned bolt and strike underneath it, so the installation basics on this page apply to those doors too.

Locked out or need a locksmith now?

We answer around the clock, every day of the year.

Call (213) 577-1366

Older doors and ranch properties in Newhall, Sand Canyon and Placerita Canyon

Old Town Newhall holds the city's oldest housing, including early-20th-century bungalows. Doors that age can differ a great deal from modern prehung units. They may be thicker or thinner than current standards, or have been planed and rehung several times over the decades. We inspect before committing to a lock model, because a deadbolt that fits a standard modern door may need adjustment, or a different style, on an older one.

Sand Canyon and Placerita Canyon carry larger ranch and equestrian properties. A deadbolt on the main house door is a good start, but these properties often have more doors and entry points than a typical tract home: a guest house, a workshop, a tack room, a barn. We can fit deadbolts to those outbuildings, and for the gates themselves our gate lock repair page explains how we handle gate hardware. If you need a single visit to cover the house and the outbuildings, tell us the number of doors when you call so we can plan it.

What heat and dust do to deadbolts in Santa Clarita

Santa Clarita is an inland valley with hot, dry summers that regularly climb above 95°F and wide swings between day and night temperatures. Wood doors and frames can swell and shrink with that cycle. A deadbolt that slides smoothly in March can bind in August because the door has moved just enough that the bolt no longer lines up with the strike.

That is why we test alignment with the door fully closed and, where the situation allows, look at how the door has behaved through the seasons. If the bolt binds only in the hottest weeks, the cause may be the door, not the lock, and we will say so rather than sell you a new lock that will not solve it. Sometimes the fix is adjusting the strike plate or easing the door edge slightly.

Santa Ana wind events add dust, and dust works its way into exterior lock mechanisms. It gums up the cylinder and the bolt track. A gritty, stiff key is often the first sign. Dry graphite or a lock-specific lubricant, not household oil that attracts more dust, helps between services. If a key breaks off while forcing a stiff lock, that is a separate job, and our broken key extraction page covers it.

What to have ready before you call

A few details let us give you a more accurate picture over the phone and arrive with the right hardware.

  • Which door or doors, and whether each one already has a deadbolt.
  • The door material, if you know it, and roughly how thick it is.
  • Whether there is glass near the lock, and how far away it is.
  • Single or double cylinder, or a request for our recommendation.
  • Any HOA or landlord requirements on finish, style or lock type.
  • Whether you want the new lock keyed to match other locks on the property.
  • If you are locked out right now, mention it first. That is a house lockout call, and we can sort the deadbolt work after you are inside.

Frequently asked questions

How long does deadbolt installation take?

It depends on the door. Replacing a deadbolt in an existing hole is quicker than boring a new door, and a swollen or damaged frame adds work. When you call (213) 577-1366, we will ask a few questions about your door and give you a realistic idea of what the visit involves.

Can you install a deadbolt on a door that does not have one?

Yes, as long as the door and frame can support it. We bore the door, fit the bolt and body, and set a properly anchored strike plate. If the door is too thin, hollow, or damaged to take a deadbolt safely, we will tell you and talk through the options.

Is a double-cylinder deadbolt a good idea for my home?

Only in specific cases, mainly when glass sits within reach of the interior thumb turn. The trade-off is that you need a key to leave in an emergency, and some codes and landlords restrict keyed-both-sides locks on exit doors. We will give you an honest opinion on your door before installing one.

Should I replace my deadbolt or just rekey it?

If the lock works smoothly and is decent quality, and you simply want old keys to stop working, rekeying is usually the more economical route. If it is worn, loose, sticking or low-grade, replacement makes more sense. We check the lock before recommending either.

My door sticks in summer. Will a new deadbolt fix it?

Not necessarily. Santa Clarita's hot summers and temperature swings can make wood doors swell, so the bolt stops lining up with the strike. Often the answer is adjusting the strike plate or the door, not a new lock. We check the cause before suggesting a replacement.

Do I need to check with my HOA before changing a deadbolt?

It is worth doing. HOA-managed communities are common in Santa Clarita, and some have rules about exterior hardware finish or style. Ask your HOA what is allowed, tell us what they say, and we will choose hardware that fits.

Can you make the new deadbolt match my other keys?

In many cases, yes. We can key new deadbolts alike so one key opens several doors. Tell us which locks you want to match when you call, and we will confirm what is practical for the hardware you have.

Do you install deadbolts at night or on weekends?

Our phone is answered 24 hours a day, 7 days a week, year-round at (213) 577-1366, and we serve Santa Clarita with mobile vans. Evening and weekend work is handled differently from scheduled daytime work, so ask about scheduling when you call.

I own rental property in Santa Clarita. Can you handle deadbolts for it?

Yes. Between tenants is a common time to replace or rekey, and we can work with you on several doors. Our locksmith for landlords page explains how we approach rental properties.

What should I ask a locksmith before they work on my door?

Ask for their BSIS LCO license number, since California requires locksmith companies to hold that license. Ask what the job will involve and what affects the cost, and make sure you get that explained before work begins.

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Deadbolt Installation near Santa Clarita

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Reviewed by David, Owner & Lead Technician, Wilshire Lock & Key — in the locksmith trade since 1987.

Last updated 2026-10-11.

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