# The Complete Guide to Rekeying Locks for Your Home

> Rekeying your locks is the quickest, most cost-effective way to regain control of home access. DIY steps, tools, costs, and when to call a pro.

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# The Complete Guide to Rekeying Locks for Your Home
By Roadrunner Lock and Key Published March 16, 2026 · Updated October 1, 2026

In this guide

- [How to Rekey Locks Yourself: Tools and Instructions](#how-to-rekey-locks-yourself-tools-and-instructions)
- [Rekey a Door Lock in Minutes! DIY Rekeying Made Easy (No Locksmith Needed)](#rekey-a-door-lock-in-minutes-diy-rekeying-made-easy-no-locksmith-needed)
- [Professional Rekeying Services: Benefits and Costs](#professional-rekeying-services-benefits-and-costs)
- [Mistakes to Avoid and How to Fix Problems](#mistakes-to-avoid-and-how-to-fix-problems)
- [Conclusion: Secure Your Home with Rekeying](#conclusion-secure-your-home-with-rekeying)
- [FAQs](#faqs)
Rekeying your locks is a cost-effective way to improve your home’s security without replacing the hardware. It involves changing the internal pins of the lock so old keys no longer work, and it can often be done for a fraction of the cost of replacing locks entirely. Here’s what you need to know:

- **Why rekey?** If you’ve moved, lost keys, or had a roommate/tenant move out, rekeying ensures only you have access.

- **Cost:** DIY kits cost $10 to $25, while professional services range from $25 to $40 per lock.

- **DIY or hire a pro?** DIY is cheaper but requires tools, patience, and the current key. Professionals are faster and handle complex locks or situations where the original key is missing.

- **Steps to DIY:** Use a rekeying kit, follow the instructions carefully, and test your new key multiple times to ensure it works smoothly.

Rekeying is a smart choice for maintaining security and saving money. Whether you choose to do it yourself or hire a locksmith, it’s an effective way to control access to your home.

## How to Rekey Locks Yourself: Tools and Instructions

### Tools You Need for Rekeying

To get started, you'll need a rekeying kit tailored to the specific brand of your lock. For instance, [Schlage](https://www.schlage.com/en/home.html) pins are incompatible with [Kwikset](https://www.kwikset.com/) locks because their pin dimensions differ. Check the brand name stamped on your lock's latch or key before buying the kit. These kits typically cost between $11 and $25 and include enough materials to rekey up to six locks.

A standard rekeying kit should include a **plug follower** (a must-have tool), tweezers or pliers for handling the tiny pins, a cylinder remover or wire tool, and a key gauge to measure the cuts on your new key. You’ll also need basic flathead and Phillips screwdrivers to remove the lock from your door. These kits are widely available at home improvement stores, hardware shops, or online. Don’t forget, you’ll need both the current working key and the new key to complete the process.

### How to Rekey Knob Locks

Start by setting up a clean, organized workspace. A white towel or sheet of paper works well to catch any small pins that might fall. Insert your current key into the lock and turn it 90°. Press the retainer clip through the side hole in the shank to remove the knob. Then, slide the cylinder out from the back of the knob and remove the C-clip from the plug’s rear. Turn the key 45° and use the plug follower to push the plug out while keeping the top pins and springs in place.

Once the plug is out, remove the old pins, insert your new key, and place the new pins into the chambers. Ensure the pins align perfectly with the plug’s surface at the shear line, this alignment is what allows the lock to turn. If the pins are too long or short, the lock won’t work. Push the plug back into the cylinder (displacing the follower), reattach the C-clip, and reassemble the knob. Before finalizing, test your new key several times with the door open to make sure everything works smoothly.

### How to Rekey Deadbolt Locks

For deadbolts, start by fully extending the bolt. Unscrew the two long mounting screws from the interior side, and carefully remove the deadbolt assembly. Take out the cylinder from the exterior housing, and unscrew the retaining cap after pressing the release pin. Like with knob locks, use the plug follower to push the plug out while keeping the top pins and springs securely in place.

Insert your new key, remove the old pins, and match the new pins to your key’s cuts. Make sure they sit flush with the plug’s surface at the shear line. Reinsert the plug (displacing the follower), and replace the retaining pin, spring, and cap. Then, remount the deadbolt assembly on your door. PJ Slauson, Locksmith and Founder of [CLK Supplies](https://www.clksupplies.com/), emphasizes:

"It's critical that you check for existing master pins to avoid future security issues like cross keying and keys that work but shouldn't."

Finally, test your new key multiple times to ensure proper functionality before tightening everything back into place. Once you’ve mastered these steps, you’ll be ready to explore when it might be better to call in a professional for rekeying.

## Rekey a Door Lock in Minutes! DIY Rekeying Made Easy (No Locksmith Needed)

## Professional Rekeying Services: Benefits and Costs

DIY vs Professional Lock Rekeying: Cost, Time, and Requirements Comparison

### When to Hire a Professional Locksmith

There are times when calling in a professional locksmith is the smarter choice over attempting a DIY fix. For example, if you don’t have the original key, DIY kits won’t work. A locksmith can pick or decode the lock cylinder instead, though this typically adds an extra $5 to $10 per lock to the cost.

For **high-security locks** like [Medeco](https://www.medeco.com/en) or [Mul-T-Lock](https://www.mul-t-lock.com/us/en), specialized tools and expertise are a must, standard rekeying kits simply won’t cut it. Similarly, antique locks and smart lock systems demand careful handling to avoid damage. If your home has **different lock brands**, say, Schlage on one door and Kwikset on another, a professional can determine if they can be keyed alike or if you’ll need compatible hardware.

Timing is another factor. A locksmith can rekey a standard lock in about 10 to 15 minutes, meaning they can handle three to five locks in under an hour. If you’ve just moved into a new home, you’ll want to rekey your locks within 24 to 48 hours after closing to ensure no one else has access. Additionally, if your locks are damaged or misaligned due to missing pins or springs, a professional rekeying service can prevent further issues. These scenarios highlight when hiring a locksmith is not just convenient but necessary, especially when weighing the costs and risks of DIY versus professional services.

### DIY vs Professional Rekeying: Side-by-Side Comparison

Choosing between DIY and professional rekeying comes down to your budget, time, and how confident you feel about tackling precise, detail-oriented work. Here’s a breakdown of the key differences:

Factor
DIY Rekeying
Professional Locksmith

**Time Required**
30+ minutes (learning curve)
10 to 15 minutes per lock

**Cost Per Lock**
$10 to $25 plus tool costs
$15 to $40 plus trip fee

**Tools Needed**
Brand-specific kit & patience
Specialized tools

**Original Key**
Required for DIY
Not needed (can pick/decode)

**Risk Level**
High (jamming, lost springs)
Low (guaranteed work)

**Security**
Depends on assembly quality
High (precise alignment)

Professional rekeying typically costs $15 to $40 per lock, with an additional service call fee of $50 to $100. However, you can save money by removing the locks yourself and taking them to a locksmith shop, where rekeying might cost as little as $13 per keyhole. Keep in mind that emergency or after-hours locksmith services can be pricey, running between $150 and $250 per hour, so scheduling during regular business hours is a good way to cut costs.

As Alec Pow, Economic & Pricing Investigator at ThePricer, puts it:

"For most homeowners, the convenience of professional rekeying outweighs minimal DIY cost savings."

For those in Albuquerque and nearby areas, Roadrunner Lock and Key provides 24/7 rekeying services, handling everything from basic residential locks to deadbolt installations and security upgrades. Their expertise ensures your locks are rekeyed quickly and correctly, giving you peace of mind.

## Mistakes to Avoid and How to Fix Problems

### Common Rekeying Mistakes and How to Prevent Them

When rekeying locks, a few common mistakes can throw a wrench into the process, but knowing what to watch for can save you time and frustration. One of the most frequent issues is a **brand mismatch**, using a rekeying kit that doesn’t match your lock’s manufacturer. Since pin sizes and keyhole dimensions vary by brand, always double-check that your kit is compatible with your lock.

Another frequent error involves **pin orientation**. Pins must be inserted with the correct side facing the key cuts, as outlined in your kit’s instructions. Missteps with the **follower tool** are also common. If the follower is inserted backward or slips during disassembly, it can send top pins and springs flying out of the cylinder. To avoid losing these small parts, work over a light-colored surface where they can be easily spotted. Paul Rankin, a contributing writer for [Bob Vila](https://www.bobvila.com/), emphasizes:

"Label your keys before starting the job. One mistake I made the first time I rekeyed my locks was not labeling my keys properly. If you're rekeying multiple locks, make sure to label each key and corresponding lock before disassembling anything".

**Incorrect pin heights** are another source of trouble. If the new pins aren’t flush with the plug surface when the key is inserted, the shear line will be blocked, causing the key to bind. Use the depth chart or key decoder included in your kit to match the pin sizes precisely to the grooves of your new key. After assembly, test the key immediately. If it binds, double-check the pin heights and adjust as needed.

### How to Fix Rekeying Problems

Even with careful preparation, mistakes can happen. Here’s how to troubleshoot and resolve common rekeying issues:

- If your key binds, inspect the pins. An overlong pin is likely the culprit, replace it with the next shorter size.

- If the key turns but the bolt won’t move, the **tailpiece** in the latch may be misaligned. Realign it to fix the problem.

- If the cylinder won’t fit back into the knob, the plug might be slightly off the 12 o’clock position. Insert the key and rotate the plug until it’s perfectly aligned before trying again.

- For springs or top pins that pop out during the process, use tweezers to carefully reinsert them. Apply steady pressure while reassembling to keep everything in place.

Once rekeying is complete, finish the job with a little maintenance. Use graphite powder or a Teflon-based spray to lubricate the lock. Avoid oil-based products like standard [WD-40](https://www.wd40.com/), as they attract dust and can cause the pins to stick over time.

## Conclusion: Secure Your Home with Rekeying

Rekeying your locks is a straightforward and effective way to boost your home's security. By changing the internal pins of your locks, you ensure that old keys no longer work, giving you full control over who can access your property. Whether you've recently moved, misplaced a key, or just want added peace of mind, rekeying offers a cost-effective alternative to replacing your locks entirely, providing the same level of security without the added expense.

This simple step not only safeguards your home but also provides immediate reassurance. Knowing that only the people you trust have access to your space is a powerful way to reclaim your sense of security.

If you're looking for professional help, **Roadrunner Lock and Key** is available 24/7 in Albuquerque and nearby areas. Their skilled team can handle everything from basic deadbolts to intricate master key systems, often finishing the job in less than an hour.

Don't wait for a security issue to arise. Regular maintenance, like using graphite spray to lubricate your locks annually, adds another layer of protection. And rekeying every two to three years, or after significant life changes, helps ensure your home remains secure. Each rekeyed lock is a step toward stronger security and greater peace of mind.

## FAQs

### Can I rekey my locks to the same key?

Yes, it’s possible to rekey your locks so they all work with the same key. This involves rearranging the internal pins in each lock to match a single key. Many people opt for this when they want to streamline key management, like after moving into a new home or misplacing their keys. Rekeying offers a practical way to improve both security and convenience.

### Will rekeying work if I don’t have the old key?

Rekeying a lock usually requires the original key. This key is essential to disassemble the lock and adjust the pins for reconfiguration. If you don't have the old key, the lock can't be aligned properly for the process. In that situation, your options are to replace the lock entirely or seek help from a professional locksmith.

### How do I know if my lock is too complex to DIY?

If you're wondering whether a lock is too complicated to rekey on your own, start by examining its **brand, type, and condition**. For example, common residential locks like **Schlage** or **Kwikset** are often manageable for DIY projects if you have the right tools. On the other hand, high-security brands like **Mul-T-Lock** or **Medeco**, as well as locks that are damaged or proprietary, usually require specialized tools and knowledge. In these situations, it's best to turn to a professional locksmith to make sure the rekeying is done correctly.

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