What are high security locks, and how are they different from a standard deadbolt?
A standard builder-grade lock is designed to keep honest people honest. Its pin tumbler cylinder has tolerances loose enough that a pick, a bump key, or a casually copied key can often open it. A high security lock does the same basic job, but the cylinder and the key system are built so those easy routes become much harder.
In practice, high security usually means three things working together: a cylinder built to resist picking and bumping, a restricted keyway whose key blanks are not sold over the counter, and a body and bolt strong enough to resist drilling, prying and brute force. A lock with only one of those is still better than a worn builder-grade lock, but it is not what we would call a complete high security setup.
People search for this upgrade under several names: high security locks, pick-resistant locks, bump-resistant locks, home security locks, commercial security locks. They overlap heavily. We use them interchangeably here, but we try to be specific about what each feature actually does, because the marketing language around locks tends to promise more than any cylinder can deliver.
Why do Acton properties call for high security locks?
Acton is rural. Most of the housing is ranch-style single-family homes and custom builds on large parcels, often with a barn, a well, horses and a long gated driveway. On acreage, nobody next door sees someone working at your side door. A lock cannot make a property invisible or watched, but what it can do is cost an intruder time and noise, and on a big parcel that matters more than it does on a tight city lot.
The other reason is key control, and it is the one people overlook. On a working property, keys tend to wander: ranch hands, trainers, boarders, contractors, a previous owner, a relative who moved away. With an ordinary lock, anyone holding a key can walk into a hardware store and make another. A restricted key system closes that gap, because copies require authorization from the person or company that set the system up.
Age plays a part as well. Much of Acton's housing was built between the 1970s and the 1990s, so some doors are still carrying locks that are decades old. Those cylinders are worn, loose in their tolerances, and often have an unknown number of copied keys floating around. Replacing them with a restricted, pick-resistant cylinder is frequently the most practical way to reset who has access.
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Call (213) 577-1366How do pick-resistant and bump-resistant cylinders actually work?
Both attacks exploit the way a pin tumbler cylinder lines up its internal pins. A pick manipulates them one at a time. A bump key knocks them all at once. High security cylinders add features that make each method less reliable. The common ones are below.
- Security pins: spool-shaped and serrated pins give false feedback while someone is picking, so the cylinder feels set when it is not.
- Tighter tolerances and a more complex keyway: a narrow, winding keyway limits which pick tools fit and makes tension harder to control.
- Bump-resistant design: modified pin stacks, or extra elements such as a side bar or sliding component that a bump strike does not set, so the energy transferred by a bump key does not open the cylinder.
- Restricted key blanks and key control: the blank is not sold freely, and duplication needs an authorization card or registered ID.
- Hardened inserts: steel elements in the cylinder and bolt resist drilling and cutting at the points where a drill is usually aimed.
Can a pick-resistant lock still be defeated?
Yes, and anyone who tells you otherwise is selling something. Pick-resistant means it takes a skilled person much longer, with more specialized tools, and with a lower chance of success. Bump-resistant means the common bump-key method is not dependable. Neither means impossible. The honest goal is to raise the effort and time required well beyond what an opportunistic intruder will spend.
That is also why we match the lock to the door and to how you actually use the property. A restricted cylinder on a hollow door with a weak frame is money spent in the wrong place. We would rather tell you that on the phone or at the door than sell you hardware that the rest of the entry cannot support.
How do we install high security locks, step by step?
Every property is different, but the sequence is consistent. If the door only needs a stronger deadbolt and not a restricted-key system, our deadbolt installation service may be the simpler fit, and we will tell you so.
- You call (213) 577-1366 and tell us which doors are involved, what locks are on them now, how many keys exist, and who has had them. Our line is answered around the clock, so you can do this at any hour.
- We look at the door, frame and strike before touching the lock. A strong cylinder in a loose frame is wasted, and Acton's wide temperature swings move frames from season to season, so we check alignment and how freely the bolt throws.
- We choose the lock system and keyway with you, including how many cylinders you need, whether several doors should open with one key, and who should be allowed to authorize copies.
- We install the new cylinders or lock sets, reinforce the strike and frame where needed with longer fasteners into solid framing, and test the bolt through its full travel.
- We cut and test the keys, explain the key control process for your system, and walk you through which doors are done and which still need attention.
- We leave you with a plain list of any remaining weak points, such as a door, a gate latch or a window, so you can decide what is worth addressing next and what is not.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366What affects the cost of high security lock installation in Acton?
We do not quote numbers on a web page, because the real figure depends on your property. What we can do is tell you exactly what moves the cost up or down, so the quote you hear on the phone makes sense.
- The lock system itself: restricted-key cylinders with patented key control cost more than pick-resistant cylinders on a standard keyway, and heavier-duty hardware costs more than lighter grades.
- The number of cylinders: a single front door is a very different job from a main house, guest house, barn and several gates.
- Keying: having several doors open with one key, or setting up a master arrangement, adds planning and cutting work.
- Door and frame condition: if the door needs preparation, the frame needs repair, or the strike needs reinforcing, that is added labor and parts.
- Residential versus commercial use: commercial doors can involve different hardware, higher duty ratings and more doors per site.
- Replacing versus upgrading: swapping in new cylinders on good hardware usually costs less than replacing the whole lock set. Our lock replacement page explains when each makes sense.
- Distance and timing: Acton is about 52 miles from our Westwood base, so travel is part of how we schedule and price a visit. After-hours calls can also differ from scheduled daytime work.
What does a high security lock upgrade look like around Acton?
Acton's ZIP code is 93510, and the properties in it vary a lot by area. Along the Crown Valley Road corridor, a common job is the horse property: a gate at the road, a barn, a tack room, and one or two outbuildings that all need to be secured, often by different people during the day. Here, key control is half the value. A restricted system lets the owner decide who can have a copy, and a keyed-alike setup can keep the number of keys on a ring manageable.
Wind and grit change what we recommend. The high-desert wind carries fine grit that wears exposed padlocks and gate hardware, so a high security cylinder sitting out in the open is not always the right answer for a gate. For those positions we look at shrouded or weather-protected hardware, and we put the true high security cylinders on the doors where they are sheltered. If a gate latch is the weak point, our gate lock repair service is the better starting place.
Along the Soledad Canyon corridor and the Sierra Highway corridor, homes tend to sit well back from the road, and the front or side door is the main thing between a visitor and the house. In the Aliso Canyon Road and Escondido Canyon areas, custom builds on large parcels often have several exterior doors, a guest house or a workshop, which is where a single restricted key across multiple cylinders becomes practical.
Property sales are another reason we get called. After a ranch changes hands on a large acreage parcel, the new owner usually has no idea how many keys the previous owner handed out. Moving to restricted, pick-resistant cylinders gives you a clean start with documented key control. Keep in mind that a standard rekey keeps the same cylinder and its weaknesses. Our lock rekey service is the lighter-cost option when you just need new keys, and a high security replacement is the better move when you also want stronger resistance.
Seasonal swings matter too. With summer highs over 100°F and winter nights that fall below freezing, door frames expand and contract. A tight, high-tolerance cylinder is only as good as the bolt alignment, so we check throw and adjust the strike so the lock does not bind in July or in January. Manufactured homes, which are part of Acton's housing stock, often have lighter doors and different frame construction, so we check how the door is prepared before promising a particular lock will fit.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366What are the limits of high security locks?
There are a few trade-offs worth knowing before you buy. We would rather you hear them from us now than discover them at midnight.
First, a high security lock can make a lockout harder to fix. Non-destructive entry on a pick-resistant, restricted cylinder can take longer, and in some cases drilling and replacing the cylinder is the realistic route. If you are ever locked out of a rural home, our house lockout service is the place to start, and we will tell you up front whether the lock is likely to survive the entry.
Second, restricted keys take more effort to replace. You cannot copy one at a hardware store, and depending on the system, extra keys may need to be ordered through the authorization process, which takes longer than cutting an ordinary key. Plan your spare keys when the lock is installed, not when you have lost the last one. For everyday keys on other doors, see our key duplication page.
Third, locks do not replace the rest of the building. A strong cylinder will not help a door with a split frame, a hollow-core slab, or a window with a flimsy latch. We will point those out when we see them.
Why call Wilshire Lock & Key for high security lock work?
We have been in business since 1987, with a storefront at 10740 Wilshire Blvd in Westwood and mobile service vans that cover 140 cities across Los Angeles and Ventura counties, Acton included. When you call (213) 577-1366, you reach us, not a national call center, and the same company sends the van. There are no dispatch middlemen between your call and the person at your door. David, the owner and lead technician, oversees the work.
Our mobile locksmith service means we bring the tools and hardware to your property, which matters in a place where the nearest hardware store is not around the corner. For a shop, workshop or other business space in Acton, our commercial locksmith work covers commercial security locks and the related door hardware.
One more thing worth knowing: California requires locksmith companies to hold a BSIS LCO license, and you should ask any locksmith for their license number before work begins. It is a fair question and a good habit, whether you are hiring us or anyone else.
Frequently asked questions
Are high security locks worth it for a rural home in Acton?
For many properties, yes, mainly because of time and key control. On a large parcel, an intruder is less likely to be seen, so a lock that resists picking and bumping buys you more than it would in a dense area. The key control side also helps if many people have had keys over the years. If your doors and frames are weak, we will say so, because those need attention first.
Can a pick-resistant lock still be picked?
In principle, yes. Pick-resistant means picking takes far more skill, time and specialized tools, and is much less likely to succeed. No cylinder is pick-proof, and we will not claim that one is. The aim is to make the lock a poor target compared with everything around it.
What is the difference between pick-resistant and bump-resistant locks?
Picking manipulates the pins one at a time with tools. Bumping uses a specially cut key and a sharp strike to jump all the pins at once. Pick-resistant designs use security pins and tight keyways to defeat picking, and bump-resistant designs change the internal layout so the strike does not set the cylinder. Good high security cylinders do both.
Can you make my existing lock high security by rekeying it?
Not really. Rekeying changes the pins so a different key works, but you keep the same cylinder with the same limits. To get real pick and bump resistance and restricted keys, the cylinder itself has to be replaced. We can tell you which is the better fit for each door when you call.
Can I copy a restricted key at a hardware store?
No, and that is the point. Restricted key blanks are not sold freely, and copies need authorization, usually through a card or registered ID tied to your system. Tell us at installation who should be able to authorize copies so you are not stuck later.
Will a high security lock fit a manufactured home or an older ranch house door?
Often it will, but we check first. Manufactured homes can have lighter doors and different frame construction, and older doors may have worn or non-standard preparation. We confirm the door will accept the hardware, and we reinforce the frame and strike if needed.
Do you handle locks for barns, outbuildings and gates, or only the house?
We handle all of them. Barns, tack rooms and workshops can take high security cylinders when they are sheltered. For exposed gates and padlocks, we look at weather-resistant hardware because wind-blown grit wears them down, and we explain which parts are worth upgrading and which are not.
What happens if I lose my only restricted key?
Call us. Depending on the system, we can often work from your authorization or from the cylinder itself to cut a replacement, though it may take longer than an ordinary key. If neither is workable, replacing the cylinder is the fallback. The sooner you tell us, the sooner we can decide how to handle it.
Do you come out to Acton at night or on weekends?
Our phone line, (213) 577-1366, is answered 24 hours a day, 7 days a week, all year. Acton is about 52 miles from our base, so we schedule the trip honestly and tell you what to expect when you call. Planned upgrades are easier to schedule than emergencies, but we answer either.
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High Security Locks near Acton
Reviewed by David, Owner & Lead Technician, Wilshire Lock & Key — in the locksmith trade since 1987.
Last updated 2026-10-11.