Non-destructive entry first, always - and we re-key Schlage, Kwikset, and Baldwin locks on the spot while you watch
You get a price before we start. It does not change when we arrive. No surprises.
Trusted Commercial Locksmith Nationwide
Commercial locksmith work in the United States typically costs $95 to $450 depending on whether you need a repair, rekey, or full hardware replacement, with most jobs quoted in writing before any tools come out. See our Commercial Locksmith cost guide for a full breakdown. Preston Locksmith & Security has handled commercial lock and door work since 2008, answering every call with a live person and sending a background-checked, uniformed technician whose price is already locked in. Business owners call us when a storefront lock stops turning, an employee leaves with keys, or a fire door no longer closes the way the code requires. If your business needs a commercial locksmith right now, call (409) 405-4485.
Key Takeaways
- Written price before work starts: You approve the number before we touch a single screw, and the invoice matches the quote.
- Same-day commercial service: Most lock replacements, rekeys, and panic bar repairs are done on the first visit.
- 365-Day Done Right Promise: If the repair fails within a year, we return free and make it right.
- Commercial hardware expertise: Medeco, Mul-T-Lock, Yale, Baldwin, Sargent, Abloy, Schlage, and Kwikset.
High Security Locks
High Security Locks are cylinders and locking systems built to resist picking, drilling, bumping, and unauthorized key duplication, typically using restricted keyways and hardened internals. Commercial properties that store cash, pharmaceuticals, data, or regulated materials almost always need them, and many insurance policies require a high-security cylinder on exterior doors before they’ll underwrite theft coverage. A Commercial Locksmith Maintenance Checklist for Los Angeles Homeowners can help you stay ahead of these requirements. Preston Locksmith & Security installs and services Medeco, Mul-T-Lock, and Abloy high-security platforms, and the work usually runs $180 to $450 per opening depending on cylinder type and key control setup. Every job includes a written price, a written guarantee, and key duplication that stays locked to authorized signers only.
Restricted Keyways and Patent-Protected Blanks
What makes these locks different is the key itself. The blanks are patent-protected, which means a local hardware store legally cannot duplicate them. You decide who can order keys, we keep the authorization list on file, and every key we cut is logged.
Drill-Resistant Housings and Pick-Resistant Pins
The cylinder body includes hardened steel inserts and pin configurations that defeat standard picking tools and most cordless drill attempts. That costs more than a $35 Kwikset swap because the hardware itself is engineered to a different standard. For a business owner, that difference shows up in the insurance premium.
Commercial Door Repair
Commercial Door Repair covers the mechanical failure points on a business door: sagging hinges, warped frames, bent strike plates, loose closers, and doors that no longer latch securely. You know you need it when a door drags on the floor, the latch misses the strike, or employees have to shoulder-check a door shut. Preston Locksmith & Security handles this work at $95 to $400 per door depending on whether we are re-hanging a slab, reinforcing a frame, or replacing worn hardware. The price is written down before work starts, and the repair carries our 365-Day Done Right Promise.
Hinge Sag and Frame Reinforcement
A commercial door swings open and shut thousands of times a year, and gravity eventually wins. We reset hinges, replace stripped screws with through-bolts, and install frame reinforcement plates where the wood or metal has torn out. The fix usually costs $120 to $250 and prevents a full frame replacement down the road.
Strike Alignment and Latch Repair
When a door no longer latches, the cause is usually a misaligned strike or a latch that has worn to the point of slipping. We realign or replace the strike, file or swap the latch, and verify the door closes and locks from both sides. That work typically runs $95 to $180 per door.
Master Key System
A Master Key System is a key hierarchy where individual users hold keys that open only their assigned doors while management holds a master key that opens everything. It is the right setup for offices, medical suites, schools, warehouses, and any multi-room building where access needs to be tiered. Preston Locksmith & Security designs, installs, and expands master key systems at $15 to $30 per cylinder for rekeying into the system, plus $8 to $15 per key cut, with design work quoted separately. Every system we build includes a written key chart, restricted key control if you want it, and room to add doors later without starting over.
Key Charts and Access Levels
Before we cut a single key, we map out who opens what: janitorial staff, department heads, executives, IT closets, pharmacy rooms. You get the chart in writing, and you approve it. When someone leaves, we rekey only the affected cylinders and issue new keys for those levels.
Expandable System Design
The mistake most businesses make is buying a dead-end system that cannot grow. We design from the start for additional doors, additional levels, and future locations. That means choosing cylinders and keyway profiles that can be extended without ripping everything out and starting over at double the cost.
Mortise Lock Replacement
Mortise Lock Replacement swaps the rectangular lock body that sits inside a pocket cut into the edge of a commercial door, commonly found on older office buildings, schools, and storefronts. You need one when the internal gearbox strips out, the deadbolt stops throwing, or the key turns without moving the latch. Preston Locksmith & Security replaces mortise lock bodies at $180 to $650 per opening depending on the brand and whether we keep the existing trim or install new. In most cases, we can match the existing hardware finish and keep your key the same, which means no new keys for the staff.
Same-Key Retention on Replacement
If we are replacing a mortise body on one door out of a suite that shares one master key, we re-pin the new body to match your existing keys. That is standard practice for us, not an upsell. Your people keep their keys, your master key still works, and the broken lock is gone.
When to Repair Instead of Replace
Sometimes a mortise lock only needs a new spring or a cleaned and lubed gearbox. We open it up, inspect the internals, and tell you if a $95 to $180 internal repair will buy you several more years. If the body is cracked or the case is worn, replacement is the honest call, and we show you the damage before we quote it.
Replace Commercial Door Lock
To Replace Commercial Door Lock means removing the existing lock hardware and installing new hardware, whether that is a cylindrical lever set, a mortise lock, or a high-security deadbolt. Businesses do this after a break-in, a lost master key, a name change on the door, or when the original hardware has simply worn out. Preston Locksmith & Security replaces commercial door locks at $150 to $650 per opening with labor and hardware included, price in writing before the work starts. We quote the full installed price on the phone, and we do not add a call-out surcharge when the technician arrives.
Hardware Selection Based on Use
A door that gets 200 openings a day needs different hardware than a file room opened twice a week. We spec the grade of the lock based on traffic, security needs, and what the door and frame can physically accept. That prevents buying a beautiful $400 lock that tears up a door built for a cylindrical knob set.
Keeping One Key, or Starting Fresh
You choose. If the old key is still in trusted hands, we key the new lock to match it so nothing changes for your staff. If keys are missing or you do not know who has copies, we key the new hardware to a fresh key and hand you the only copies. Either way, the choice is yours and the price is set before we swap anything.
Panic Bar Installation
Panic Bar Installation adds or replaces the horizontal push bars on egress doors that let people exit a building with one push, required by fire code on most commercial exits, assembly spaces, and any door designed for emergency exit. An existing panic bar that sticks, fails to latch, or opens from the outside when it should not is a liability and a code violation. Preston Locksmith & Security installs and repairs rim, vertical rod, and mortise panic devices at $350 to $1,100 per door depending on device type and door width. Every installation is followed by an egress test: one push from the inside, door opens, every time.
Code-Compliant Egress Verification
We install panic hardware to close and latch on its own and open with a single motion from the inside, with no keys, tools, or special knowledge required. After the install, we test it with you standing there. If it does not pass, we adjust it until it does, and the guarantee covers that adjustment.
Vertical Rod and Rim Options
Single doors usually take a rim panic bar, while double doors need vertical rod devices that shoot bolts into the top and bottom of the frame. We inspect the door and frame first, because a sagging door will keep knocking a new panic bar out of alignment. That inspection is part of the written quote, not an afterthought.
Storefront Door Repair
Storefront Door Repair covers the aluminum and glass doors common on retail storefronts, restaurants, and office lobbies, focusing on pivot points, patch locks, door pulls, closers, and the latch hardware built into the frame. These doors take abuse from weather, foot traffic, and delivery carts, and the usual first symptom is a door that no longer closes tight or a lock that no longer lines up. Preston Locksmith & Security repairs storefront doors at $125 to $600 depending on whether we are adjusting pivots, replacing a mortise cylinder, or rebuilding a bottom rail. We stock the common patch lock and mortise cylinder sizes on the truck, so most storefront repairs are done in one visit.
Pivot and Patch Lock Adjustment
Most storefront door problems come down to the pivot blocks wearing out, which drops the door a fraction of an inch and throws the lock out of alignment. We replace or adjust the pivots, realign the patch lock, and test the door for full closure and latch. This fix typically runs $125 to $300 and keeps the door from eating itself further.
Glass Door Hardware That Matches
Storefront hardware has to match the existing holes and finish, and it has to hold up to weather and constant use. We work with Yale and Baldwin commercial hardware among others, and we’ll match your existing finish so the repair does not stand out. If the door is beyond saving, we will tell you that honestly and quote a replacement threshold before we try to patch a frame that will fail again.
Commercial Door Closer Repair
Commercial Door Closer Repair fixes the hydraulic or pneumatic arm at the top of a door that controls how fast it closes and whether it latches. Following a Commercial Locksmith Maintenance Schedule: What to Do and When can prevent these failures before they happen. You need it when a door slams, creeps, or will not close at all, and a non-functioning closer on a fire door is a code violation that can fail an inspection. Preston Locksmith & Security repairs, adjusts, and replaces commercial door closers at $95 to $350 per door depending on whether we rebuild the existing unit or install a new one. This is one of the most common callouts we get, and most closer issues are resolved in under an hour.
Speed, Latch, and Back-Check Adjustment
A closer has three adjustments: sweep speed, latch speed, and back-check. We set all three so the door closes smoothly without slamming, latches firmly, and does not blow open past its stop. Many closers we see were never set right after the door was installed, and the fix is fifteen minutes.
Replacement vs. Rebuild
When a closer leaks oil or the internal valve is shot, adjustment will not save it. We replace it with a commercial-grade unit sized to the door, then set the adjustments and test the full swing. We’ll show you the old unit and the leak before we quote the replacement, so you are never paying for a swap you do not need.
Brands We Service
We service Medeco high-security cylinders on a regular basis, and many of our commercial clients run Medeco for key control and drill resistance. We stock Medeco pins, cylinders, and tailpieces on the truck, and our techs know the M3 and Biaxial platforms well enough to rekey most Medeco systems on-site without sending anything out. If you have a Medeco keyway, we can keep it, expand it, or rekey it around a departed employee.
Our team also works on Yale commercial hardware, from mortise bodies to cylindrical lever sets to panic devices, and on Mul-T-Lock high-security platforms with their telescoping pin systems. Whether you have Medeco, Yale, Mul-T-Lock, Baldwin, or another make entirely, we can help, and we will tell you in writing what the parts and labor cost before we start.
Signs You Need a Pro Right Now
- Your door no longer latches on its own. A door that looks closed but is not latched is an open invitation, and it also means the building no longer meets the fire code. The cause is usually a misaligned strike, a failing closer, or a worn latch, and all three get worse the longer you wait.
- A key is missing and you do not know who has it. An unaccounted key means your locks are doing nothing for you. The fix is a rekey at $15 to $30 per cylinder, done the same day, with new keys handed straight to you.
- The key turns but the lock does not open. That usually means a broken tailpiece, a stripped gear, or a failed mortise body. Forcing it will snap your key off inside the lock, which turns a $95 repair into a $300 extraction and replacement.
- Your panic bar sticks or fails the one-push test. If an exit door does not open with one push, you have a life-safety problem, not a convenience problem. Fire marshals test these, and a failed egress door can shut down a business until it is fixed.
- A door closer slams or creeps. Closers do not wear out overnight, and a slamming door is already damaging the frame, the hinges, and the closer itself. A $95 adjustment today is cheaper than a $600 door replacement in six months.
Our Process, Step by Step
- 1
Call us and talk to a real person. You call (409) 405-4485, a live person answers, and you describe the door, the lock, and what it is doing. We give you a realistic price range on that call and a live arrival window you can track.
- 2
Technician arrives with a written scope. Your technician shows up in uniform, introduces themselves, and inspects the hardware before touching anything. You get a written price for the exact work, and nothing starts until you approve it.
- 3
Repair or replacement, done on-site. Most commercial jobs are resolved from the parts stock on the truck: cylinders, mortise bodies, closers, panic bars, and high-security hardware. We work clean, protect your floor, and keep the entry usable while we work.
- 4
Before-and-after photos and testing. We document the original condition and the finished repair, then test the door with you watching: lock, unlock, latch, egress. If it does not pass, the job is not done.
- 5
Digital invoice and written guarantee. You get an itemized invoice with a pay link, and the guarantee is printed on the invoice itself. 365-Day Done Right Promise: if it fails within a year, we come back free and make it right.
How Much Does Commercial Locksmith Cost?
A commercial locksmith job in the United States typically runs $95 to $650 depending on the service, with most repairs landing between $95 and $400 and full hardware replacements running $180 to $1,100. Rekeying a commercial lock costs $15 to $30 per cylinder. A door closer adjustment or repair runs $95 to $350. A mortise lock body replacement lands between $180 and $650. A panic bar installation runs $350 to $1,100 per door. The big price swing comes down to hardware: a Schlage lever set costs less than a Medeco high-security cylinder, and a rim panic bar costs less than a vertical rod device on a double door.
What affects the price: the brand and grade of the hardware, whether we are matching an existing key system, the age and condition of the door and frame, and whether the parts are standard stock or a specialty finish. How to avoid overpaying: get the written price before work starts, ask if the tech can key new hardware to your existing key, and do not let a sagging door go unaddressed until it breaks the hardware you just paid for. A free estimate from us includes the inspection, the exact scope, and the price, in writing, with no call-out surcharge added on arrival. Call (409) 405-4485 and you will know the number before we dispatch anyone.
Where We Work
Preston Locksmith & Security serves homeowners and businesses across the United States through local crews that carry the same written-price guarantee, the same background-checked technician standard, and the same 365-Day Done Right Promise. Every location is independently owned and operated, which means your technician has local accountability plus national training and support. Wherever you are, the process is the same: live answer, written price, live arrival time, before-and-after photos, and a guarantee on the invoice.
Frequently Asked Questions About Commercial Locksmith
A commercial locksmith handles locks, doors, keys, and access hardware for businesses rather than homes, including rekeying, high-security locks, panic bars, door closers, and master key systems. If you are in Southern California, our Los Angeles Commercial Locksmith team covers the same full range of services. Commercial work often involves code compliance, key control, and heavier-duty hardware than residential locks. Preston Locksmith & Security has handled this work since 2008 with a written price before any work starts. Call (409) 405-4485 to talk through what your building needs.
Most commercial jobs, including rekeys, lock replacements, and closer repairs, are done the same day, often within one to two hours on-site. Panic bar installations and master key system designs can take longer depending on the number of openings. We will give you a realistic time window on the phone and a live arrival time you can track before the technician shows up.
Commercial locksmith work typically runs $95 to $650 for most repairs, $15 to $30 per cylinder for rekeying, and $350 to $1,100 per door for panic bar installation. Labor and hardware are included in the written quote, and the price you approve is the price on the invoice. For an exact number on your specific door, call (409) 405-4485, and we will quote it on the phone before anyone is dispatched.
Yes, we service Medeco, Mul-T-Lock, Abloy, Yale, Baldwin, Sargent, Schlage, and Kwikset hardware, including high-security cylinders with restricted keyways. We stock common Medeco and Mul-T-Lock pins and parts on the truck, so most rekeys and repairs happen on the first visit. If your business uses a proprietary keyway, tell us the brand when you call and we will confirm coverage immediately.
Yes, our phones are answered by a live person around the clock, and we dispatch for commercial lockouts, break-in repairs, and egress failures after hours. There is no voicemail tree and no callback queue, and the written-price rule applies at 2 p.m. and 2 a.m. the same way. Call (409) 405-4485 any time, and you will speak to a person who can send help.
Every repair is covered by our 365-Day Done Right Promise, which is a written guarantee stamped on every invoice. If the repair fails within a year, we come back free and make it right, no charge and no argument. The guarantee covers the labor and the hardware we installed, and it follows the job whether you are the original caller or a new tenant.
Clear the area around the door, make sure the technician has access to both sides of it, and have any keys ready so we can test the lock after the repair. If it is a master key job, have the list of who should retain access ready, and we will build or update the key chart. You do not need to take the door off or do any prep beyond clearing the space; we bring everything else.
Schedule Your Commercial Locksmith Service Today
Need a commercial lock replaced, rekeyed, or repaired? Call (409) 405-4485 now and get a written price, a live arrival time, and a background-checked technician who shows up ready to finish the job today. The estimate is free, the price is locked in writing before we start, and every repair carries the 365-Day Done Right Promise. One call, no phone tag, no surprise invoice.
Written by Kevin Yoon, Owner at Preston Locksmith & Security, serving businesses nationwide since 2008. Visit our home page for more about our residential and commercial locksmith services.