# Rekey vs Replace Locks: Which Is Right? | Huntsville Locksmiths

> Rekeying vs changing the locks: how each works, the cost difference, and when to pick which after moving in, losing a key, or upgrading security.

URL: https://locksmithshuntsville.com/guide/lock-rekeying-vs-changing-the-locks/
Last-Modified: 2026-06-09

![Locksmith rekeying a deadbolt cylinder with a pinning kit on a workbench](/images/featured/locksmith-rekeying-a-deadbolt-cylinder-with-pinnin.webp)

We hear the same concern from homeowners almost daily. People know they need new keys, but deciding on rekey vs replace locks feels confusing.

Our team sees how these two very different jobs impact both your security and budget. This choice actually dictates whether you spend a modest fee or hundreds of dollars per door.

We are going to break down the mechanical differences between these services.

The data below will show you exactly how to pick the right approach for your property.

## What Rekeying Actually Is

Rekeying keeps your existing hardware intact while altering the internal pins so old keys fail. We swap those internal pins for a new set, cutting fresh keys to match.

The cylinder inside a standard Schlage or Kwikset deadbolt contains tiny, spring-loaded pins cut to a specific height. Our locksmiths simply change that height pattern to match a brand new key.

The finish, brand, and actual deadbolt on your door stay exactly the same. We usually finish this process in about 5 to 10 minutes per cylinder right on site.

Here is what happens after a rekey:

-   Old keys no longer work.
-   New keys you ask us to cut now open the lock.
-   The cylinder is just as secure as before (same model, same brand).

## What “Changing the Locks” Means

Changing the locks means removing your current deadbolt entirely and installing a brand new unit. We pull out the old mechanism, finish, and strike plate to upgrade your security grade.

New hardware from the manufacturer ships with its own factory-cut keys. Our technicians use this option to upgrade standard Grade 3 builder hardware to high-security Grade 1.

The Builders Hardware Manufacturers Association rates standard Grade 3 locks for only 200,000 use cycles. We recommend Grade 1 deadbolts because they withstand 1,000,000 cycles and resist extreme impact force.

This service is exactly what you want in a few specific scenarios:

-   Your existing hardware is worn or damaged.
-   You want to upgrade from Grade 3 builder hardware to Grade 1 high-security.
-   You want a different finish (brushed nickel to matte black, etc.).
-   You are adding smart-lock functionality.

We expect a full replacement to take 15 to 30 minutes depending on the door preparation.

## When to Rekey

You should rekey your locks when the hardware functions perfectly but you need to control access. We strongly advise this approach whenever property ownership changes hands.

About 11.8 percent of Americans changed residences in 2024 according to recent Census data. Our team sees thousands of new homeowners ignore the risk of floating keys.

A quick rekeying session solves this vulnerability immediately.

### Real Estate and Moving Transitions

We treat new home purchases as an immediate priority.

**Just bought a house.** You have no idea how many agents, prior owners, contractors, or neighbors hold copies of the old keys. Our technicians can rekey the whole house in thirty minutes so everyone else gets locked out.

**Tenant turnover.** Landlords also rekey between tenants for the exact same safety reasons. We rekey apartment doors constantly to prevent former renters from returning uninvited.

### Security and Relationship Changes

**Lost a key.** Dropping a key in public creates an instant security threat because you do not know where it is. Our mobile units provide this cheaper alternative so you avoid replacing every single lock on your house.

**Internal trust change.** Separations, ex-roommates, or fired housekeepers demand immediate key control. We handle these sensitive lockouts discreetly and fast.

**Construction is done.** A general contractor hands you the keys at the end of a project. Our experts suggest rekeying before move-in just to be completely safe.

## When to Replace

You must replace your locks when the hardware is physically broken, failing, or technologically outdated. We recommend a full replacement to permanently fix sticking cylinders or compromised strike plates.

Basic internal mechanisms simply wear out over time. Our inspections often reveal internal rust or stripped screws that make pinning new keys impossible.

### Upgrades for Better Security

**Grade upgrade.** Swapping from a basic Grade 3 deadbolt to a commercial Grade 1 model dramatically improves safety. We install heavy-duty Medeco locks to resist picking and drilling attacks.

The cylinder is not the only piece changing during this complete hardware upgrade. Our installation replaces the whole bolt and strike system.

**Smart lock upgrade.** Replacing the mechanical deadbolt with a smart digital system offers immense convenience. We completely strip out the old hardware to fit the new digital keypad.

### Cosmetic and Damage Replacements

**Damaged hardware.** A lock forced open or impact-damaged during a break-in loses its structural integrity. Our technicians always throw away broken locks because the internal housing usually cracks.

**Cosmetic upgrade.** Modernizing your style often requires a different finish or matching all doors. We stock every option from classic brushed nickel to sleek matte black hardware.

**Hardware is worn.** Sticking, sloppy, or hard-to-turn cylinders frustrate everyone trying to get inside. Our crew replaces these aging units instead of wasting time dropping new pins into a failing lock.

![New door hardware being installed on a home front door](/images/maps/new-brushed-nickel-door-hardware-being-installed-o.webp)

## Rekey vs Replace Locks: Cost Comparison (Rough)

Comparing the rekey locks cost against a full hardware replacement reveals a massive price gap. We save homeowners hundreds of dollars by simply repinning cylinders instead of selling new deadbolts.

Recent 2026 pricing data shows standard hardware replacement running anywhere from $120 to $300 per door. Our rekeying rates cost a fraction of that amount per cylinder.

Look at the financial breakdown for a typical 4-door home in Madison or Huntsville.

| Service Option | Average 2026 Cost Per Door | Total Estimate (4 Doors) |
| --- | --- | --- |
| Rekeying Existing Locks | $50 - $150 | $200 - $600 |
| Full Lock Replacement | $120 - $300+ | $480 - $1,200+ |

We perform a **full-house rekey** (4 cylinders, 3 keys cut) for substantially less than the cost of one new premium lock.

**Full-house lock replacement** involving four new Grade 1 deadbolts requires real money. Our estimates show replacement easily costing six to ten times more than a simple rekey.

The math explains why changing every knob is rarely the right choice.

## A Mixed Plan Is Often Right

A mixed strategy balances high-security upgrades on main entries with affordable fixes on secondary doors. We construct custom security plans to concentrate your budget where intruders actually strike.

Most burglaries target the front or back doors directly. Our crews assess each entry point individually to decide if you should rekey or change locks.

Many homes achieve the best results with this specific setup:

-   **Front door:** replace with Grade 1 or smart deadbolt
-   **Back door:** rekey existing Grade 3 deadbolt for now
-   **Garage entry:** rekey or upgrade depending on hardware condition
-   **Side / basement doors:** rekey

We map out this exact balance of cost against where the security spend actually matters most.

For new homeowners, the complete approach is detailed in the 

new Huntsville homeowner security checklist

[/guide/security-checklist-for-new-huntsville-homeowners/ →](/guide/security-checklist-for-new-huntsville-homeowners/)

.

Our targeted approach keeps your family safe without draining your wallet.

## Get the Right Plan for Your House

Protecting your home starts with an accurate count of your exterior doors. We quote exact rekey and replace ranges so you can choose the right mix for your property.

Call **(256) 906-3375** and tell us how many entryways need attention.

Our team details every available option on the 

residential locksmith

[/residential-locksmith/ →](/residential-locksmith/)

 services page.

Professional guidance guarantees your house stays secure during any rekey vs replace locks project.

## Frequently Asked Questions

Is rekeying cheaper than replacing my locks?

Usually yes — rekeying reuses your existing hardware and just changes the pins.

Does rekeying make old keys stop working?

Yes — after a rekey, all previous keys no longer open the lock.

When should I replace instead of rekey?

When hardware is worn or damaged, or you want a security or finish upgrade.

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[Best High-Security Deadbolts for Alabama Homes →](/guide/best-high-security-deadbolts-for-alabama-homes/)

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[Door & Jamb Reinforcement to Prevent Break-Ins →](/guide/door-and-jamb-reinforcement-to-prevent-break-ins/)

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[How to Spot a Locksmith Scam in Alabama (AESBL Licensing) →](/guide/how-to-spot-a-locksmith-scam-in-alabama/)

### Locked Out of Your House in Huntsville? What to Do

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[Locked Out of Your House in Huntsville? What to Do →](/guide/locked-out-of-house-huntsville/)

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