4Keys Locksmith
B2B Guide · ALOA Trained · COI Available

Commercial Lock Change Service When You Need It & What It Costs

Commercial lock change guide for offices, retail stores, restaurants, multi-tenant properties, and medical practices. When to change vs rekey, hardware options compared (Schlage B660, Yale 8800, Sargent 8200, Medeco Maxum, Mul-T-Lock Hercular), real per-door pricing for FL and GA, documentation included with every install (COI, W-9, signed key control log).

Find Your Location
Commercial lock change service on a business door by 4Keys Locksmith

Florida and Georgia

Qorinca LLC · 4Keys Locksmith LLC

Mobile service since 2023

Mobile, 24/7

We come to where you are

Arrival window confirmed on the call

NASTF VSP

Vehicle Security Professional

Dealer-level key programming

ALOA Training

EEPROM, auto electronics, access control

32 CEU hours

Employee turnover? Break-in? Insurance upgrade? Lock change is the answer when rekey is not.

Rekey saves money when hardware is healthy. Lock change is required when hardware is worn, wrong grade, or compromised. We walk through both options on the phone before dispatching.

Commercial services hubSee full pricing
Lock Change vs Rekey

The right choice depends on 5 specific scenarios

Commercial lock change and rekey solve similar problems differently. Rekey keeps the existing cylinder and swaps the internal pins so old keys no longer work. It is fast (under 20 minutes per cylinder) and cheaper than replacement; the per-cylinder rate is published on 4keyslocksmith.com/pricing/. The catch: rekey only works if the existing hardware is in good condition and you want to keep the same brand and keyway. Worn hardware, residential-grade cylinders on commercial doors, or a brand change all require full lock replacement.

Lock change removes the entire cylinder and installs new hardware. More expensive but resets the security baseline completely. Most B2B clients do a hybrid: rekey the lower-traffic doors and full lock change on entrances, cash rooms, server rooms, and any door that has been opened or damaged.

If you are unsure which one your business needs, we do an on-site walk-through (no charge for projects over 10 doors) and recommend the right mix. See the commercial services page for the full menu.

When Lock Change Is Required

5 scenarios that always need full lock change, not rekey

Hardware older than 15 years

Old cylinders fail sooner, are harder to source rekey pins for, and may not meet current ANSI Grade 1 standards.

Residential-grade on commercial door

Kwikset, low-end Schlage residential cylinders on commercial doors are easy to bump, pick, or drill. Upgrade to Grade 1.

Post break-in damage

Even if the cylinder still rotates, internal pins may be compromised. Full change resets security and starts a clean record.

Insurance or compliance upgrade

Commercial insurance policies and fire codes increasingly require ANSI Grade 1. Rekeying an old residential cylinder will not pass audit.

Brand or keyway change

Want to switch to Medeco, Mul-T-Lock, or ASSA Abloy restricted keyway for key control? That requires new cylinders, not rekey.

Mass employee departure

After layoffs, mergers, or ownership changes, lock change plus master key setup is cheaper than tracking down every key.
The Process

Five steps from assessment to documented install

  1. 1

    On-site assessment

    Tech inspects existing hardware, identifies brand, grade, keyway, and confirms which cylinders need full change vs rekey.

  2. 2

    Hardware selection and quote

    Recommend Grade 1 hardware appropriate for threat model and compliance needs. Full price quoted upfront on the phone.

  3. 3

    Schedule install around operations

    Per-door work in 15-30 minute windows during slow hours. Sensitive areas coordinated with your security manager for sign-off.

  4. 4

    Cylinder removal and replacement

    Remove existing cylinder, install new Grade 1 hardware, cut and test new keys on-site, verify rotation and latch alignment.

  5. 5

    Documentation handoff

    Signed key control log, warranty cards, invoice with our license or registration number, COI, and W-9 delivered to your AP team.

Procurement-Grade Documentation

Documentation included with every commercial install

COI on request

Certificate of Insurance in 24 hours for AP and vendor approval.

W-9 ready

EIN provided, vendor packet on request. NET 30 for approved accounts.

Signed key control log

Notarized record of every key issued, to whom, when. Annual audit support for SOC 2, HIPAA, insurance compliance.

Fixed phone quote

No on-site surprise upcharges. Volume pricing for 10+ doors.

FAQ - Commercial Lock Change FAQ

Got questions? We have answers. If you don't see your question below, call us anytime - we're available 24/7.

Lock change means removing the entire cylinder and installing a new one. Rekey means keeping the cylinder and swapping the internal pins so old keys no longer work. Rekey is faster and cheaper, but it only works when the existing hardware is in good condition and of the right grade.
The dispatcher gives you the total before the van moves, and it is the total you pay on site. It changes with the job, with the hardware, and on a car with the make, the model and the year. A job between 9 PM and 7 AM local time, and on Sundays and federal holidays, carries a separate surcharge, quoted in the same conversation. All published rates are in one place: 4keyslocksmith.com/pricing/.
Five scenarios always call for lock change, not rekey: (1) hardware is older than 15 years, (2) keyway is residential-grade on a commercial door (Kwikset, low-end Schlage), (3) post break-in cylinder damage, (4) compliance upgrade to Grade 1 ANSI for insurance or fire-code, (5) brand change to restricted keyway for key control documentation. Otherwise, rekey is fine and saves money.
Standard hardware (Schlage, Yale, Sargent Grade 1): same-day for jobs under 10 doors, next-business-day for jobs up to 30 doors. Restricted keyway hardware (Medeco, Mul-T-Lock, ASSA Abloy DC): 2-5 business days because the hardware ships from authorized dealers only. We carry standard Grade 1 in our mobile units for emergency same-day situations.
Yes. Standard documentation package: signed key control log (who received each new key, when, by whom), hardware warranty cards, invoice with our Miami-Dade County license number or Georgia business registration, COI for AP, and W-9 for vendor onboarding. For restricted keyway installs, we also provide the key control agreement and the procedure for future key cuts.
For most businesses yes. We schedule per-door work in 15-30 minute windows during slow hours or after operating hours. For sensitive areas (cash room, server room, controlled-substance cabinet), we coordinate with your security manager for sign-off on tested function before leaving. Multi-door changes for active retail or restaurants can run overnight at no additional rate for projects over 10 doors.
Depends on threat model and compliance. Standard office or retail: Schlage B660, Yale 8800, or Sargent 8200 in Grade 1 ANSI rating. Higher security or post-break-in upgrade: Medeco Maxum, Mul-T-Lock Hercular, or ASSA Abloy DC. Highest security or audit-required: restricted keyway versions of the above. All four major brands have similar pricing tiers; the differentiator is the keyway restriction and the dealer network.
Yes. If you are changing multiple cylinders, we can pin them to a master key hierarchy at the same time. The marginal cost is the master key pinning fee for the system, not a per-cylinder charge. This is the cheapest moment to set up a master key system because the labor is already paid.
By company. Florida operations run as Qorinca LLC, which was issued Miami-Dade County locksmith license LK-094576 (Florida has no state locksmith license). Georgia issues no state locksmith license, so Georgia operations run as 4Keys Locksmith LLC, registered with the Georgia Secretary of State and insured by The Hartford. For Georgia jobs, a COI from The Hartford is available for AP and vendor approval.
For approved business accounts: NET 30. Initial jobs typically settle on completion via card, check, or ACH. After two successful jobs we can move to NET 30 invoicing on request with W-9 and COI on file. Volume contracts and property management agreements are quoted with monthly or quarterly billing.

Related Reading

Master Key System Setup Guide

Combining lock change with master key setup is the cheapest moment to upgrade.

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Commercial Locksmith Services

Full menu: lockouts, rekeys, access control, panic bars, safes.

Read guide

What Is NASTF VSP?

The industry credential we hold (for car key work, not commercial, but it signals authority).

Read guide
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B2B Quote

Need commercial lock change? Find your location.

Pick FL or GA and we quote the full job on the phone before our crew dispatches. COI, W-9, and signed key control log included.

Commercial servicesMaster key setup guideAbout 4Keys

The price depends on the job and the components it needs; you get the exact total on the phone before the technician is sent. See our reference prices.