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Julian's Locksmith

Artesia, Los Angeles County

Double Cylinder Deadbolt Installation in Artesia

Short answer: A double cylinder deadbolt needs a key on both sides, which stops an intruder from breaking glass and turning a thumbturn. It also means you need a key to leave, so building codes generally don't allow one on a home's required exit door. Julian's Locksmith installs them in Artesia where they're allowed and suggests safer options where they're not. Call (951) 903-3193.

Double Cylinder Deadbolt Installation in Artesia, CA — Deadbolt installation with reinforced strike plate

Not every door on a property is part of the escape route. A workshop, a detached garage, a pool house or a farm outbuilding in Los Angeles County often has a glass-panel door that tempts break-ins, and a double cylinder deadbolt is a reasonable answer when nobody sleeps inside and a clear exit exists elsewhere. Installation on those doors is straightforward: the same bores, a second cylinder, one key. Julian's Locksmith fits the lock, reinforces the strike and helps you decide where the key lives. We verify ownership before starting and quote first. Call (951) 903-3193.

How this works in Artesia

Codes and common sense point the same way on exits. California's residential code expects the required exit door of a dwelling to open from the inside without a key, special knowledge or effort. Commercial codes carry similar rules, with narrow exceptions for certain occupancies that depend on signage and conditions. Local building and fire departments interpret and enforce these, and on existing homes enforcement usually surfaces during an inspection, a remodel or a sale. Insurers and landlords differ too. The safety logic doesn't wait for an inspector, though. Our rule is simple: we won't put a keyed-both-sides lock on the door your household relies on to get out in a fire. Secondary doors, outbuildings and interior storage rooms are different, and we install double cylinder deadbolts there after talking through the exit plan with you and confirming that another way out exists. You hear our reasoning in plain terms before any drilling starts.

What we can do on-site

  • Double cylinder deadbolt installation on glass-panel doors. For doors with glass in the panel or beside the lock, we fit a keyed-both-sides deadbolt after checking exits and stile width. The new lock goes into a standard bore where possible, keyed alike on both faces, with a heavy strike behind it. We talk through the key plan before leaving.
  • Exit and code check before we drill. Our quote begins with a conversation: which door, how many exits, who sleeps where, what's on the other side of the glass. That tells us whether a double cylinder is a sound security measure or a hazard. We put the reasoning in plain language so you can decide with the facts.
  • Interior storage rooms and secured closets. A home office, a server closet or a storage room can use a double cylinder to stay locked from both sides. We confirm the room isn't a bedroom or the only route to an exit, then fit the lock, key it to a single key and set the strike so a pry bar has less to work with.
  • Keying, spare keys and the key plan. We key the new cylinders to your existing keyway, such as Kwikset KW1 or Schlage SC1, or to a fresh key. For properties with many doors, a keyed-alike plan saves keys. For high-security options, restricted blanks limit copying of the one key everyone relies on.
  • Strike, jamb and frame reinforcement. A glass door is often weaker at the frame than at the lock. After installing the double cylinder, we fit a box strike with 3-inch screws into the framing, check the hinges and look for split wood at the strike. The deadbolt is only as strong as what it lands in.

How Artesia shapes the job

In family neighborhoods across Artesia, kids, guests and busy mornings make a key-to-exit lock hard to live with. Children can't always find or turn a key, and visiting grandparents have never seen it. For the front and garage-entry doors we recommend single cylinders. A double cylinder can work on a detached garage door or a storage room where nobody needs a quick way out.

Apartment tenants in Artesia often ask about double cylinders after a break-in on a balcony or glass door. In a rental unit, the main entry must keep working deadbolt hardware under California law, and tenants need to leave without a key in an emergency. We usually recommend reinforcing the strike, protecting glass and asking the landlord to approve any lock changes. Landlords can call us to remove an unauthorized double cylinder at turnover.

Shops in Artesia's strip centers usually have aluminum storefront doors with narrow stiles that can't take a standard bore, plus rear doors that serve as the second exit. A double cylinder typically isn't an option on an exit door. We use hookbolt deadlocks, exit devices and code-compliant keyed locks, and suggest film or laminate on glass near the lock. We never trade away exit capacity for security.

Situations this covers

  • A bungalow has a brass mail slot cut into the front door about eight inches from the deadbolt's thumbturn. The owner has read that a hooked wire fished through a slot can turn some thumbturns. A double cylinder would solve it but trap the household. We suggest sealing or relocating the slot, using a catch box, or mounting the deadbolt higher, and keep a normal thumbturn on the door.
  • A 1920s Craftsman near Artesia Library on Elaine Avenue has a front door with nine small glass panes and a thumbturn deadbolt six inches from the nearest pane. The owner asks for a double cylinder. We explain that this is the home's main exit, so a lock needing a key to leave conflicts with exit guidance. We install a strong single-cylinder deadbolt with a box strike instead, and she calls a glazier about laminated glass for the pane nearest the lock.
  • A homeowner installed a double cylinder deadbolt years ago and keeps the key in the lock whenever someone is home. We point out the contradiction: a key sitting in the interior cylinder is exactly what a hand reaching through broken glass would turn. She chooses a single-cylinder deadbolt and laminated glass for the nearest pane, which solves the key problem and the glass problem.
  • A seller in Artesia learns during escrow that the buyer's inspector flagged the double cylinder on the front door as a safety concern. The key has been missing for years. We replace the lock with a single-cylinder deadbolt of the same brand, rekey it to match the garage entry, and give the agent a short note of what changed. The sale carries on without the issue.

How the visit works

  1. Talk through the door and the reason. Before we drive out, we ask three things: which door, how far the glass is from the thumbturn, and whether this is the way out in an emergency. Those answers tell us whether to bring a double cylinder, a single cylinder or both, so you can choose on site.
  2. Check exits, glass and the people involved. On site, we look at the door, the glass and the exit routes, and verify ID and proof that you own or live at the property. We decide together whether a double cylinder suits this door. If it doesn't, we explain what to do instead.
  3. Measure, quote and choose the hardware. Hardware choices come next. Standard double cylinder deadbolts from Kwikset or Schlage suit most doors, while heavier Grade 1 or restricted-key models suit higher-risk entries. We show you what fits your door, what each option adds and what the total will be.
  4. Prepare the door. We use a drill jig to cut the face and edge bores square, protecting the glass and finish with tape and padding. If the door is already bored, we clean and check the holes. A crooked bore makes the key bind, so we take care here.
  5. Fit both cylinders, key them and set the strike. Mounting is simple: the lock body, two cylinders and two through-bolts. The care is in alignment, so the key turns freely from both sides and the bolt slides into the strike without touching. We adjust the strike until it does, then confirm the screws bite into framing.
  6. Test the lock and plan the key. The visit ends with an actual drill: door locked, key at the planned spot, you walking from the far side of the room. If that feels slow, we rethink the plan or the lock. We hand over keys and note the keyway and brand for your records.

How we quote the job

  • Door prep and thickness. Wood doors with glass panes are slower to drill than a plain slab. The jig, masking and careful bore cutting all add time, though they protect your door. If the stile is too narrow for a standard bore, we discuss a different lock rather than force the fit.
  • Glass protection you add separately. Laminated glass, security film and grilles aren't part of our lock work. Glaziers and window-film installers handle them, and they have their own costs. We install the lock and strike, and we can tell you what to ask those trades for.
  • Number of doors and scheduling. Visits inside our hours, 6:30 a.m. to 11:30 p.m. every day, can be scheduled around your day. Combining doors helps. Tell us how many doors, what each is made of and which need keying alike when you call.

Every job gets a clear quote before any work starts. Call (951) 903-3193 with the details and we'll tell you what to expect for your situation in Artesia.

What to do before we arrive

  • Tell every adult in the household, and any regular visitors, where the key lives. A babysitter, a house guest or an older relative who has never seen the lock should be shown on arrival. A note taped inside a cabinet door can help, as long as it isn't visible from outside.
  • Match the lock to your door thickness. Most double cylinder deadbolts expect 1-3/8 to 1-3/4 inches. Thicker doors need an extension kit, and kits are model-specific. Measure the door edge rather than the frame, and photograph the existing bores. We can bring the right kit if you give us the number.
  • When children live in the home, think about the key's reach rather than its secrecy. A hook set too high can leave a nine-year-old unable to get out. Pick a spot older kids can reach, explain that it's for emergencies, and rehearse until they can do it without help.
  • Check your insurance and local rules before installing. Policies, leases and HOA rules differ, and we can't speak for your carrier. A short call to your insurer and to the local building or fire department can prevent trouble at renewal, at inspection or when you sell the house.

Mistakes to avoid

  • Skipping the strike. People focus on the interior cylinder and leave a thin strike held by short screws. A hard kick pops a short-screwed strike out of the jamb, and the double cylinder never gets a chance. Fit a box strike with 3-inch screws into the framing at the same visit.
  • Assuming a double cylinder stops all break-ins. It targets the reach-in method only. A kick, a pry or a drill doesn't care which kind of cylinder is on the inside. Reinforce the strike and frame too, or the lock protects against one attack and ignores the others.
  • Putting a double cylinder on the main exit and hiding the key far away. In a fire, that costs seconds nobody has. Households do it because a pane of glass worries them. Protect the glass instead and keep a normal thumbturn on the door your family relies on to leave.

Getting to Artesia

Artesia is about 63 miles from our San Bernardino base, roughly 66 minutes in light traffic via Palm Avenue to I-215 North, I-15 South to I-10 West. When you call, you get an arrival estimate based on where the technician is and the traffic at that moment.

Homes and businesses just off 183rd Street are routine stops for us. Give the suite or unit number and any gate instructions, and say whether the van can park out front or should pull into a side lot.

About Artesia: Pioneer Boulevard is the commercial spine of the city and is signed as the Artesia International and Cultural Shopping District, long known for its Indian-owned stores and restaurants.

Neighborhoods186th Street, Pioneer Boulevard International and Cultural Shopping District, Jersey Avenue, Elaine Avenue, North Artesia, Civic center around Clarkdale Avenue
ZIP codes90701
Main routesSR-91, I-605, Pioneer Boulevard, Artesia Boulevard
From our San Bernardino baseabout 63 miles via Palm Avenue to I-215 North, I-15 South to I-10 West (San Bernardino Freeway) through Ontario, Pomona and West Covina, then I-605 South to SR-91 East (Artesia Freeway) and the Pioneer Boulevard exit; alternate via I-215 South to SR-91 West through Corona and Santa Ana Canyon, exiting at Pioneer Boulevard or Norwalk Boulevard

New or replacement locks in Artesia?

Call (951) 903-3193 and tell us which doors and what kind of hardware you have in mind. If you already bought the lock, keep the box handy so we can check it fits the door, and we'll quote the install before any work starts.

Frequently asked questions

Can you replace my existing double cylinder with a single cylinder?

Yes. The bores are the same, so we remove the double cylinder, install a single-cylinder deadbolt with a thumbturn inside and key it to your house key if you like. It's a quick swap. We can also strengthen the strike and talk about protecting the glass so you aren't trading security for safety.

Is a double cylinder deadbolt legal in California?

California codes expect a home's required exit door to open from inside without a key, special knowledge or effort, so a double cylinder doesn't belong on that door. Other doors, such as a workshop or interior storage room, are treated differently, and enforcement varies by city. Check with your local building department, and we'll tell you honestly what we will and won't install.

Can tenants install a double cylinder deadbolt?

Not without the landlord's written permission, and landlords often decline because of exit-safety and liability concerns. California also expects working deadbolts on the main swinging entry doors of rentals. If glass worries you, ask the landlord about reinforcing the strike, protecting the pane or relocating the lock. We work with landlords and property managers on approved changes.

Can I use a double cylinder deadbolt on a business door?

Commercial codes require exit doors to open without a key in most cases, with narrow exceptions for particular occupancies and signage. Your building department or fire marshal decides what applies. We install keyed-both-sides locks on back-of-house rooms and non-exit doors, and use code-compliant hardware on exits. Call (951) 903-3193 with the door's use and we will help sort it out.

What can I do instead of a double cylinder on a glass door?

Laminated glass, security film and polycarbonate inserts make the pane harder to break through. A steel security screen or decorative grille adds a barrier. Moving the deadbolt farther from the glass can help, and a heavy strike with long screws strengthens the door's other weak points. We handle the lock and strike and can point you to a glazier or film installer.

Where should I keep the key?

On a hook or spot near the door, within easy reach for someone leaving but out of reach from outside through a broken pane. Everyone in the household should know it, including older kids. Don't leave it in the lock out of habit, since that lets a reaching hand turn it. Rehearse the exit in the dark once a year.

How far is Artesia from your base?

Artesia is about 63 miles from our San Bernardino base, roughly 66 minutes in light traffic. Arrival time depends on traffic and on the job the technician is finishing, so we give you an estimate on the phone before you commit.

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Daily 6:30am–11:30pm