Lock Installation & Rekey Cost — Honest Price Ranges, No Bait Pricing

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How Much Does Lock Installation & Rekey Cost in St. Johns?

In St. Johns, FL, rekeying a single lock typically costs $85-$150, and installing a new lockset runs $155-$320 per door including hardware. High-security systems from Medeco, Mul-T-Lock, or Abloy run higher, usually $280-$650 installed per cylinder depending on the model.

Those are 2026 market rates for this stretch of St. Johns County, where most homes use standard residential locksets that rekey quickly. The gap between the low and high end comes down to hardware brand, how many doors you’re covering, and whether you’re rekeying existing locks or replacing them. We handle the full spectrum, from a single Kwikset deadbolt to a full Medeco conversion, so the estimate you get reflects the actual lock in front of us, not a one-size-fits-all menu.

Key Takeaways

• Rekey a single lock: $85-$150 in St. Johns.
• Install a new standard lockset: $155-$320 per door with hardware.
• High-security installation (Medeco, Mul-T-Lock, Abloy): $280-$650 per cylinder installed.
• Whole-home rekey (4-5 exterior doors): $210-$480.
• Rekeying is almost always cheaper than replacing, and just as secure when the lock is in good shape.

Lock Installation & Rekey Cost Breakdown (2026)

Here’s how the numbers break down for the St. Johns market across the work we do most often. Ranges assume standard residential or light commercial access; unusual hardware or heavy doors can push a line item higher.

What pushes a job toward the high end? Heavy-duty commercial door prep, a high-security brand that needs specialized tooling and certification, doors that are damaged or out of alignment so the new lockset doesn’t seat cleanly, or a large property manager account where we’re rekeying dozens of units. What keeps it low? Standard hardware you already own, multiple locks handled in one trip, and a straightforward single-family home. Rekeying an existing Schlage or Kwikset lock is the cheapest security upgrade on this table, and in most cases it’s the right call.

We service the full Schlage, Kwikset, Medeco, Yale, Baldwin, Mul-T-Lock, Sargent, and Abloy lineup. That range matters for pricing because we don’t have to refer out a high-security job to a specialist and mark it up in the process. From Kwikset to Abloy, the estimate comes from the same source.

What Affects Lock Installation & Rekey Pricing in St. Johns

Every estimate we give in St. Johns starts with the same question: what’s already on the door? From there, a few factors move the price.

• Lock brand and security grade. A builder-grade Kwikset rekeys in minutes. A restricted-keyway Medeco or an Abloy PROTEC requires specialized tooling and carries genuine anti-pick, anti-bump engineering, so both the hardware and the labor cost more. This is the single biggest swing in the estimate.
• Number of locks and doors. The first lock carries most of the trip cost; each additional lock on the same visit is meaningfully cheaper. A whole-home rekey across four exterior doors usually costs less per lock than four separate single-lock calls.
• Door condition and fit. Hardwood, steel, and storm-rated doors in St. Johns County homes sometimes resist standard lock prep. A door that’s swollen from our summer humidity or slightly out of plumb can need adjustment before a new deadbolt seats properly, which adds labor.
• Residential versus commercial. Commercial rekeys (office suites, retail frontage, multi-family) often involve master key systems, panic hardware, and aluminum-frame doors. The per-lock rate may be lower on a large account, but the scope and coordination take more planning than a single home.
• Timing and access. A scheduled appointment is straightforward. An after-hours call for a lockout or urgent security concern carries a premium because we’re dispatching on-call. We’re set up for emergency response, not a two-week scheduling queue.
• New construction and turnover. Many St. Johns homes are relatively new builds in neighborhoods like Julington Creek, Rivertown, and Nocatee, and a common pattern is a homeowner buying a resale and wanting every lock rekeyed on day one. Turnover rekeys are typically priced as one job, which brings the per-door number down.

One thing we don’t do is quote a price over the phone for hardware we haven’t seen. A 30-second description of your door rarely matches what’s actually there, and we’d rather come out, look, and give you a firm number than surprise you later. Estimates are free.

Lock Installation & Rekey in St. Johns: What You’re Actually Paying For

The labor you’re paying for isn’t just turning a key. Rekeying means swapping the pins inside the cylinder so the old key no longer works and the new key does, which requires matching the cylinder to the right keyway and testing every position before we leave. On standard residential locks that’s routine. On high-security brands it’s where certification and specialized tooling matter, and it’s exactly where a generalist locksmith will refer you out or decline the job.

Installation adds door prep, alignment, and hardware selection. If you’re replacing an older lock, we’ll match the door, the strike plate, and the surrounding trim so the new piece looks and functions correctly. On commercial doors, it’s about code-compliant hardware and a master key system that actually scales as your staff changes.

This is also where the “rekeyed, not replaced” logic pays off. If your existing locks are decent – a working Schlage or Kwikset deadbolt – rekeying is the cost-conscious security upgrade and it keeps hardware that’s already on the door. The exception is when the lock itself is failing, or when you want to step up to high-security. Then installing a fresh Medeco or Mul-T-Lock cylinder is the move, and it’s priced accordingly. We work on the locks most locksmiths won’t, and that includes the upgrade path.

If you’re managing a property across St. Johns County, we handle rekeying for residential and commercial properties across every major brand, and we’ll coordinate a turnover schedule so units are ready when tenants are. For the same approach in nearby Clay County, see our lock installation and rekey service in Green Cove Springs, and start from our home page to explore the full lineup of services.

How to Save on Lock Installation & Rekey

The best way to keep the number down is to plan the job as one visit instead of several. Here’s what actually moves the total in your favor.

• Batch your doors. Rekey the whole house or the whole unit at once. The per-lock cost drops sharply compared to calling us out four separate times.
• Rekey instead of replace where it makes sense. If the hardware is sound, rekeying is the cheaper path and delivers the same security result of invalidating old keys. Save new hardware for locks that are failing or for an intentional step up to high-security.
• Standardize your keys. Have every exterior door keyed alike on one key. It’s a convenience upgrade at little added cost and simplifies what you carry and what you hand out to family or tenants.
• Schedule instead of waiting for an emergency. A planned appointment is more economical than an after-hours dispatch. If you’ve just bought a home in St. Johns, rekey before move-in rather than after a lost-key scramble.
• Ask about the exact hardware first. Knowing whether you’re on Schlage, Kwikset, or an older high-security cylinder lets us quote accurately and avoid a surprise on tier-up hardware. A free estimate call settles it in a few minutes.

Call (855) 360-5957 for a free estimate on your lock installation and rekey job in St. Johns. We’ll tell you straight whether you’re looking at a rekey or a replacement, and what it’ll cost.

FAQs – Lock Installation & Rekey Cost in St. Johns

How much does it cost to rekey a lock in St. Johns?

A single-lock rekey in St. Johns runs $85-$150, and a whole-home rekey across four to five exterior doors typically costs $210-$480. Each additional lock on the same visit is cheaper than a separate trip. Call (855) 360-5957 for an exact quote – estimates are free.

Is it cheaper to rekey or replace a lock?

Rekeying is almost always cheaper. A standard rekey is $85-$150 versus $155-$320 or more to install a new lockset. You replace only when the lock is failing or you want to move up to a high-security brand like Medeco, Mul-T-Lock, or Abloy – in that case installation is the right spend. Call (855) 360-5957 and we’ll tell you which applies to your door.

How much does high-security lock installation cost in St. Johns?

Installing a high-security cylinder from Medeco, Mul-T-Lock, or Abloy runs roughly $280-$650 per cylinder installed, depending on the model and door. These systems require specialized tooling, which is why many generalist locksmiths refer the work out – we handle it in-house. Call (855) 360-5957 for a firm number on your specific hardware.

Do you charge extra to come out to my St. Johns address?

Mobile service across St. Johns is included in the estimates above – there’s no separate trip fee quoted on our standard jobs. After-hours emergency calls carry a premium because we dispatch on-call. Call (855) 360-5957 to confirm pricing for your timing.

How soon can you come out for a rekey or installation in St. Johns?

We schedule rekeys and installations across St. Johns and also take on-call emergency calls, so timing depends on the day and whether it’s a planned visit or a lockout. A planned job gets on the calendar quickly; an emergency gets dispatched. Call (855) 360-5957 and we’ll give you the soonest window.

Pricing reflects the St. Johns market as of 2026. Kingsley Locksmith offers free estimates – call (855) 360-5957.