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Crenshaw Lock

Deadbolt Installation in Sierra Madre · 24/7 mobile

Deadbolt Installation in Sierra Madre, California

Crenshaw Lock Company provides mobile deadbolt installation in Sierra Madre, California, 24/7. We add or replace single- and double-cylinder deadbolts on cottages, canyon cabins and downtown shops, and we come to your door. Call (323) 997-8867 to talk through your door and choose the right lock.

  • Mobile to your Sierra Madre location
  • Available 24/7
  • Price quoted before we start
Call (323) 997-8867or tap to call — we answer 24/7
Deadbolt bolt extended into a reinforced strike plate
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A deadbolt is one of the simplest ways to make a door harder to defeat, but in Sierra Madre the job is rarely as simple as buying a lock and drilling a hole. Many homes here were built in the early 1900s, and their doors tell the story: thin old pine, glass-paned Craftsman entries, narrow stiles, and original hardware that was never designed to hold a modern bolt. Getting a deadbolt to sit square, throw smoothly and actually add strength takes care.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, and owner and lead tech David Shar has worked on plenty of older foothill homes. We are fully mobile and available 24/7, so there is no storefront to visit. We bring the tools and hardware to your property, look at the door in person, and install a deadbolt that suits the door rather than forcing a one-size-fits-all product onto it.

Whether you are adding a first deadbolt to a bungalow near the village, replacing a worn lock after a tenant moves out, or upgrading the back door of a shop off Kersting Court, we explain the options plainly. We will tell you when a single cylinder makes sense, when a double cylinder is worth considering, and when the door itself needs attention before any lock will help.

How it works in Sierra Madre

  1. 1

    Call and describe the door

    Phone us at (323) 997-8867 and tell us about the door: wood, metal or glass-paned, whether it already has a deadbolt, and what you want to fix. Photos of the edge and face help us arrive with the right hardware.

  2. 2

    Inspect the door and frame

    On site we check door thickness, condition of the wood, the stile width, and the strike side of the jamb. Century-old doors and frames often have splits, paint buildup or wear that affect how a bolt should be set.

  3. 3

    Choose single or double cylinder

    A single-cylinder deadbolt uses a key outside and a thumb turn inside. A double cylinder needs a key on both sides, which can make sense near glass but has real exit concerns in an emergency. We walk through the tradeoffs and local safety considerations before you decide.

  4. 4

    Install and reinforce

    We bore or retrofit the door cleanly, set the bolt so it throws fully into the jamb, and fit a strike plate secured with long screws into the framing where the frame allows. Where an old mortise or skeleton-key setup is present, we work carefully to preserve as much of the door as we can.

  5. 5

    Test, key and hand over

    We cycle the lock repeatedly with the door open and closed, confirm smooth operation, and hand over your keys. If you want several doors keyed alike, we can set that up during the same visit.

Need deadbolt installation in Sierra Madre?

24/7 Mobile Locksmith across Greater Los Angeles & Ventura County. We answer 24/7.

Call (323) 997-8867

What affects the price

  • Whether you are adding a new deadbolt to a bare door or replacing an existing lock, since new boring takes more work than a straight swap.
  • The type of door: solid wood, hollow metal, or a glass-paned Craftsman door each call for different preparation and hardware.
  • Single versus double cylinder, and the grade and brand of the deadbolt you choose.
  • The condition of the door and frame, including any repair or reinforcement of the jamb and strike area on older homes.
  • How many doors you want done and whether they should be keyed alike to one key.
  • Access and time of day, including hillside or narrow-lane properties where tools must be carried in, and after-hours service.

Why Sierra Madre chooses us

  • Fully mobile service: we come to your home or shop and there is no storefront to drive to.
  • In business since 1987, with long experience on older doors and hardware common to foothill communities.
  • Available 24/7, so a broken or failed lock can be dealt with outside business hours.
  • We assess the door first and recommend what suits it, rather than pushing one product on every job.
  • Careful work on historic doors, aiming to preserve original wood and character where we reasonably can.
  • Clear explanations of single versus double cylinder options, including the safety tradeoffs.

Deadbolt Installation across Sierra Madre

Sierra Madre is a compact foothill town, and the homes around the village core show it: early-1900s Craftsman cottages, Victorians and bungalows with doors that have seen a century of paint and weather. Near Sierra Madre Blvd and the streets around the famous wisteria vine, we often see old entry doors with a single worn lock and little real security. A new deadbolt, set properly into a reinforced frame, makes a meaningful difference without changing the look of the home.

Up in Sierra Madre Canyon, the lanes are narrow and steep, and many cabins have original skeleton-key mortise locks and non-standard doors. Parking can mean leaving the van below and carrying tools uphill, which we plan for. Fitting a deadbolt to these doors takes patience, and sometimes a retrofit rather than a standard install. Homes in ZIP codes 91024 and 91025 near Bailey Canyon Wilderness Park and the Mount Wilson Trail often fall into this category.

Downtown, the small shops and cafes around Kersting Court and near Mary's Market have their own needs, especially back doors and storage rooms. We can add or upgrade deadbolts for small businesses, and we reach the area easily from Baldwin Ave, Michillinda Ave and the I-210 Foothill Freeway. Call (323) 997-8867 any time.

Locked out or need a locksmith now?

24/7 Mobile Locksmith across Greater Los Angeles & Ventura County. We answer 24/7.

Call (323) 997-8867

Other Sierra Madre locksmith services

See all of our Sierra Madre services, or our citywide deadbolt installation page.

Deadbolt Installation in Sierra Madre — FAQs

Can you install a deadbolt on an old Craftsman door?
Usually yes. We check the thickness, wood condition and stile width first. Some old doors need careful boring or added reinforcement, and we will tell you what is realistic. Call (323) 997-8867 to describe your door.
What is the difference between single and double cylinder deadbolts?
A single cylinder uses a key outside and a thumb turn inside. A double cylinder needs a key on both sides, which can help near glass but slows exit in an emergency. We help you weigh that for your door.
I live in Sierra Madre Canyon with a skeleton-key lock. What are my options?
We can often rekey or carefully retrofit original mortise hardware, or add a modern deadbolt where the door allows. Narrow lanes are fine; we carry tools up from where we park. Call (323) 997-8867.
Do you offer deadbolt installation at night or on weekends?
Yes. Crenshaw Lock Company is available 24/7 and fully mobile, so you can call (323) 997-8867 at any hour.
Can you key several doors alike?
Yes. We can set deadbolts and other locks to work with one key, which is handy after a tenant turnover or when securing a whole cottage.
Can you install deadbolts for a shop near Kersting Court?
Yes. We work on small-business doors, including back and storage entrances, and can match hardware to the door type and your needs.
Will a deadbolt alone make my door secure?
Not always. The strike plate, jamb and door condition matter as much as the lock. We check these and reinforce what we reasonably can during installation.
Do I need to visit your shop?
No. We are mobile only and have no storefront. We come to your property in Sierra Madre and do the work on site.
DS

Reviewed by David Shar — Owner & Lead Technician

Crenshaw Lock Company has served Greater Los Angeles & Ventura County since 1987.

Last updated 2026-10-12.

Call (323) 997-8867 · Open 24/7