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Crenshaw Lock

Deadbolt Installation in San Dimas · 24/7 mobile

Deadbolt Installation in San Dimas, California

Crenshaw Lock Company provides mobile deadbolt installation in San Dimas, California, available 24/7. We come to your home or business to add or replace single- and double-cylinder deadbolts on your doors. Call (323) 997-8867 to describe your door and schedule the work.

  • Mobile to your San Dimas location
  • Available 24/7
  • Price quoted before we start
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Deadbolt bolt extended into a reinforced strike plate
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A deadbolt is one of the simplest upgrades you can make to a door, but only if it is fitted properly. In San Dimas, where so many homes are 1960s and 1970s ranch-style houses, original entry doors often carry a basic knob lock and nothing else, or a worn deadbolt that no longer throws cleanly into the frame. Adding or replacing a deadbolt gives that door a solid steel bolt that resists the kind of prying and kicking that a spring latch cannot.

Crenshaw Lock Company has been serving Greater Los Angeles and Ventura County since 1987, and David Shar and our team do this work at your door, not in a shop. We are fully mobile, so there is no storefront to visit. We come to you, look at the door, and install the hardware on the spot, whether it is a front entry, a side door off the garage, or a back door that opens toward a yard or pasture.

The work is more than drilling a hole. A deadbolt is only as strong as the door and the frame around it, so we pay attention to how the bolt aligns, how deep the strike plate screws bite into the framing, and whether the door itself is solid enough to hold new hardware. We will explain what we see in plain language and let you decide what makes sense for the door in front of us.

How it works in San Dimas

  1. 1

    Call and describe the door

    Phone (323) 997-8867 any hour and tell us which door you want to secure, whether it is a first deadbolt or a replacement, and whether it is wood, metal, or something else. Mention if you want it keyed the same as your other locks.

  2. 2

    Choose single or double cylinder

    A single-cylinder deadbolt turns with a key outside and a thumbturn inside. A double-cylinder needs a key on both sides, which can suit doors with glass nearby but needs thought about emergency exit. We talk through which fits your door and household.

  3. 3

    Check the door and frame

    We look at the door thickness, the existing bore holes, and the condition of the frame. A weak or split jamb undermines even a strong bolt, so we note whether it needs reinforcing.

  4. 4

    Install the deadbolt

    We fit the bolt, cylinder, and strike plate, using longer screws in the strike where the framing allows. If there is an existing hole we use it where it is sound; otherwise we prepare the door cleanly.

  5. 5

    Test and hand over keys

    We operate the lock repeatedly with the door open and closed, confirm the bolt throws fully, and give you the keys. If you want it matched to other locks on the property, we can discuss keying options.

Need deadbolt installation in San Dimas?

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What affects the price

  • Whether you are adding a new deadbolt where none exists or replacing an existing one, since a new install may require boring fresh holes in the door.
  • Single-cylinder versus double-cylinder hardware, and the grade and brand of the deadbolt you select.
  • The door material and condition, such as solid wood, hollow-core, or metal, which affects how much preparation is needed.
  • Whether the frame or strike area needs reinforcement to make the new bolt worthwhile.
  • How many doors are being done in one visit, and whether you want them keyed alike.
  • The time of day and location of the call, since we operate 24/7 and travel to you.

Why San Dimas chooses us

  • Fully mobile service, so the installation happens at your actual door and you are not carrying hardware or doors anywhere.
  • Serving Greater Los Angeles and Ventura County since 1987, with owner and lead tech David Shar overseeing the work.
  • We look at the frame and strike, not just the lock, because a good bolt in a weak jamb is not much protection.
  • Plain-language advice on single versus double cylinder, including the emergency-exit trade-off, with the decision left to you.
  • Familiarity with both tract-style ranch homes and rural properties where doors, barns, and outbuildings each need different hardware.
  • Available around the clock, so a door that will not secure tonight does not have to wait for business hours.

Deadbolt Installation across San Dimas

San Dimas has a mix of building types that call for different deadbolt approaches. In the 91773 ZIP code, many ranch-style homes from the 1960s and 70s still have their original entry hardware. Swapping a tired knob lock for a proper deadbolt, or replacing an older bolt that sticks, is a common request here. Homes along streets near Arrow Hwy, San Dimas Ave, and Foothill Blvd often have a front door, a garage side door, and a back slider or patio door, each of which may deserve a look.

In Via Verde, the planned community on the southern hills, HOAs often expect hardware that matches a standard look, so we pay attention to finish and style when installing or replacing a deadbolt. That matters especially for a new owner who wants fresh, secure hardware without clashing with community guidelines. Out toward San Dimas Canyon and the larger lots near Frank G. Bonelli Regional Park, properties may include barns, outbuildings, and gated drives. Those doors often face the weather and see rough use, so we talk about durable hardware that holds up outdoors.

Downtown and Old Town San Dimas, with its western-themed facades along Bonita Ave, has small retail and civic buildings where a commercial-minded deadbolt on a back or storeroom door can make sense. Whether you are near Puddingstone Reservoir, close to the I-210 or SR-57, or tucked up in the canyon, we come to you. Call (323) 997-8867 and we will schedule the installation.

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Other San Dimas locksmith services

See all of our San Dimas services, or our citywide deadbolt installation page.

Deadbolt Installation in San Dimas — FAQs

Do you install deadbolts at my home in San Dimas, or do I come to you?
We come to you. Crenshaw Lock Company is fully mobile with no storefront, so we install the deadbolt at your door anywhere in San Dimas. Call (323) 997-8867 to get started.
Can you add a deadbolt to a door that only has a knob lock?
Yes. Many older ranch-style homes have doors with only a knob or lever latch. We can add a separate deadbolt if the door is thick and solid enough to take it, and we will tell you if the door needs attention first.
Should I choose a single-cylinder or double-cylinder deadbolt?
Single-cylinder is the usual choice because you can open it from inside with a thumbturn. Double-cylinder requires a key on both sides, which may suit a door with glass nearby, but it can slow your exit in an emergency. We will walk through both with you.
Can the new deadbolt be keyed to match my other locks?
Often yes, depending on the hardware you pick and what you already have. Tell us when you call (323) 997-8867 and we can discuss keying options for the doors on your property.
I live in Via Verde. Do I need to worry about HOA hardware rules?
It is worth checking your community's guidelines on finish and style. We can install a deadbolt that fits a standard look, and we will ask about any requirements before we choose hardware.
Can you secure barn or outbuilding doors on a rural lot near San Dimas Canyon?
Yes, we can discuss deadbolts and related hardware for barn and outbuilding doors. Those doors face weather and wear, so we look at durable options suited to the door and its use.
Will a new deadbolt help if my door frame is weak?
Only partly. A strong bolt needs a solid frame and strike plate behind it. We check the jamb and let you know if reinforcement would help before you rely on the new lock.
Can I call at night to have a deadbolt installed?
We are available 24/7. If a door will not secure or you need a lock added right away, call (323) 997-8867 and we will talk through what is needed.
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