Deadbolt Installation in Granada Hills, CA

What does deadbolt installation actually involve?

A deadbolt is the lock that does the real work on your door. The knob or lever latch on most houses is there to hold the door shut against the wind. It is not there to stop anyone. A deadbolt throws a solid steel bolt deep into the door frame, and that is what resists a shoulder, a boot, or a pry bar. If your entry door has only a knob lock, or has a deadbolt that sticks, wobbles, or barely reaches the frame, the door is weaker than it looks.

Installation means more than screwing a lock onto a door. The bolt has to line up with the strike in the frame within a very small tolerance. The holes have to be cut cleanly. The strike has to be anchored into something solid, not just the thin trim around the jamb. A deadbolt that is installed a little off will still lock on the day it goes in. A few months later it starts to drag, and you end up lifting the door or leaning on it to get the key to turn.

We do two kinds of work under this heading. One is a new deadbolt on a door that has none. The other is deadbolt replacement, where an old, worn, or mismatched unit comes out and a new one goes in, often in the same holes. Both are quick jobs when the door is in good shape. The care goes into the alignment and the fit.

Single-cylinder or double-cylinder: which deadbolt fits your door?

A single-cylinder deadbolt takes a key on the outside and has a thumb turn on the inside. You can lock and unlock from inside in one motion with no key. That is the right choice for most front doors, and it is what we install most often.

A double-cylinder deadbolt takes a key on both sides. People ask for double cylinder deadbolt installation for one specific reason: a door with glass in it, or a window beside it. If someone breaks the glass and reaches in, a thumb turn is right there. A keyed inside cylinder takes that option away.

The trade-off is real and we explain it before we install one. A key-operated inside cylinder means that in a fire or other emergency, someone has to find the key to get out. Building and fire codes can restrict double-cylinder locks on some doors, and landlords often have their own rules. The usual way to live with one safely is to keep the key on a hook near the door, out of reach from the glass but close enough for everyone in the house to know where it is.

• Single-cylinder: key outside, thumb turn inside. Best for most solid entry doors.
• Double-cylinder: key on both sides. Worth considering when glass sits within arm's reach of the lock.
• Keyed-alike sets: several deadbolts on one key, so front and back doors do not need separate keys.
• Higher-security cylinders: pick-resistant and drill-resistant options are covered on our high-security locks page.

How we install a deadbolt, step by step

The process is the same whether we are adding a first deadbolt or swapping an old one. We just skip the steps that do not apply.

1. Look at the door. We check its thickness, material, and condition, and whether it hangs square. A door that rubs or sags needs that fixed first, or the new bolt will inherit the problem.
2. Check the existing holes. Standard doors are bored for common sizes, but older doors and custom doors sometimes are not. We measure the backset and the bore before choosing hardware.
3. Choose the hardware with you. We go over single or double cylinder, finish, grade, and whether you want it keyed to match your other locks.
4. Bore or prepare the door. If we are adding a new deadbolt, we cut the face and cross holes with the right tools so the edges stay clean and the door is not split.
5. Fit the latch and the lock body. The bolt should slide freely in its housing with no force.
6. Set the strike in the frame. We mortise it flush and drive long screws that reach the framing behind the jamb. This step does more for kick-in resistance than the lock itself.
7. Test it. We run the bolt dozens of times with the door open and closed, and we check that the bolt fully extends and retracts. You get all the keys, and we walk you through anything unusual about the setup.

Installation, replacement, or rekey: which one do you need?

Not every deadbolt problem needs a new deadbolt. If the lock works well but you are worried about who has keys, lock rekeying changes the internal pins so the old keys stop working, and it is usually the more economical route. If the lock is worn, sticks, or is a poor-quality unit to begin with, replacing it makes more sense than paying to rekey something that will fail anyway.

If you are also thinking about a keypad, app control, or a deadbolt that auto-locks, that is a different set of choices. Our smart lock installation page covers it. And if you want a whole-house sweep of every exterior lock at once, look at lock replacement as the broader job. This page stays focused on the deadbolt itself.

What affects the cost of deadbolt installation?

We do not quote numbers on a web page, because the honest answer depends on your door. What we can tell you is what moves the cost up or down, so there are no surprises when we give you a figure on the phone or at the door.

• New hole or existing hole: a door already bored for a deadbolt is a lighter job than one that needs to be drilled from scratch.
• Hardware grade and brand: basic residential units, heavier grades, and high-security cylinders sit at very different levels.
• Single or double cylinder: the two are built differently and do not always cost the same.
• Door condition: a warped, cracked, or hollow door may need repair or reinforcement before a deadbolt will hold properly.
• Frame condition: a split jamb or a loose strike area needs fixing for the lock to do its job.
• Number of doors and keying: keyed-alike or master-keyed sets take more planning than a single lock.
• Time of day: after-hours and emergency visits are priced differently from scheduled daytime work.
• Travel: Granada Hills is part of our service area, and we confirm what applies to your address when you call.

Deadbolt work in Granada Hills: what we see in these homes

Granada Hills is mostly single-story ranch tracts from the 1950s and 60s, and many doors in the 91344 ZIP code were built before deadbolts were standard. In Old Granada Hills, a common call is a house with a worn original knob lock and a deadbolt added decades ago that no longer lines up. Frames shift over sixty years, and a strike that once matched perfectly can sit a few millimeters off today. If your deadbolt in one of these ranch tracts has started to fight you, the fix is often a realignment and a new strike, not a whole new lock. We tell you which one it is.

The Balboa Highlands tract is a designated Historic Preservation Overlay Zone of mid-century modern Eichler homes, and owners there often want period-appropriate or low-profile hardware that respects the original design. We can help source deadbolts with a clean, quiet look instead of a bulky modern one. We cannot tell you what the overlay requires for visible exterior changes, so check that before replacing hardware on the front of an Eichler. Many of these homes have glass near the entry, which is exactly the situation where the single versus double cylinder question comes up. We will talk it through with you.

Larger lots near Knollwood Country Club often have side doors, garage service doors, and gates that all need their own locking. We can key the deadbolts to match so you carry fewer keys. For gate hardware, our gate lock repair page covers that side of the work.

Weather matters here too. The north Valley foothill setting brings hot summers and gusty Santa Ana winds in fall, and sun-exposed south-facing doors see the most seasonal hardware wear. Heat can make wooden doors swell and shift, and that is when a tight deadbolt starts to bind. If yours only sticks in the afternoon heat, mention that when you call. It points us to the cause.

If you are on a foothill street near O'Melveny Park and find yourself locked out before any of this can be fixed, call us and we will handle the house lockout first. We can deal with the deadbolt once you are back inside.

Why call Wilshire Lock & Key for a deadbolt

We have been in business since 1987. That means we have fitted deadbolts to a wide range of doors, from solid-core to hollow, from old wood to modern steel. We are a real storefront at 10740 Wilshire Blvd in Westwood with mobile service vans, so the person on the phone is part of the same company that comes to your door. There is no dispatch middleman passing your job to whoever is free.

David, the owner and lead technician, oversees how the work is done. Deadbolt installation is a job where small shortcuts show up later, in the form of a door that sticks or a strike that works loose. We would rather take the extra few minutes to set the strike properly than leave you with something that needs a repeat visit.

You can reach us 24 hours a day, 7 days a week, all year, at (213) 577-1366. If a deadbolt fails or a door will not secure at night, our emergency locksmith service is the quickest path to getting the door secured, and permanent hardware can follow.

How do you check that a locksmith is legitimate?

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 you call for that license number, and check it with the state if you want to be sure. That applies to us and to anyone else you are thinking of hiring.

A few other signs are easy to check. A real company gives you its business name and address when you ask. It explains the work before starting. It does not insist on drilling a lock that could be picked or rekeyed. And it tells you what affects the cost before the work begins, not after.

More locksmith help in Granada Hills

• Change Locks in Granada Hills
• Gate Lock Repair in Granada Hills
• High Security Locks in Granada Hills
• Key Duplication in Granada Hills
• Lock Installation in Granada Hills
• Lock Rekey in Granada Hills
• All services in Granada Hills

Deadbolt Installation near Granada Hills

• Porter Ranch
• Northridge
• Mission Hills
• North Hills
• Sylmar
• Chatsworth