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Re-Keying vs Replacement: How to Quote Each Job

Updated 2026-05-27. Locksmith School Blog editorial team.

The Decision Matrix: Assess Before You Quote

The moment you answer the phone, the customer’s expectation is set. They want a price, but they are asking you to solve a problem they likely don't understand. As a professional locksmith, your job is to diagnose the hardware condition before committing to a price. Quoting a re-key over the phone when the cylinder is rusted shut is a recipe for a "bait and switch" accusation, while quoting a full replacement for a functional lock leaves money on the table.

You must establish a decision matrix. The primary variable is the physical condition of the lock and the door. Is the lock a Grade 1 ANSI/BHMA rated heavy-duty commercial cylinder, or a residential Grade 3 Kwikset or Schlage? Are the tailpieces broken? Is the cam stripped? If the lock operates mechanically but the customer simply does not possess the key, re-keying is the standard route. However, if the lock is seized, the faceplate is corroded, or the customer wants to upgrade security, replacement is the only ethical recommendation.

When you arrive on-site, your first visual inspection should focus on the brand and the wear pattern. If you see a Kwikset SmartKey cylinder, you know you can likely re-key it in seconds without disassembly using the reset tool. If you see an older Weiser or a generic no-name cylinder often found on rental properties, you must prepare for a full cylinder disassembly or a recommendation to replace the hardware entirely. According to industry standards, if the cost of labor to repair a lock exceeds 50% of the cost of new hardware, replacement is the more efficient option for the client (Associated Locksmiths of America, aloa.org).

Calculating the Re-Key Quote

Re-keying is the bread and butter of residential locksmithing. It offers high margins with low material costs, but it requires specific technical skill. To quote this accurately, you must calculate your "per cylinder" cost plus the service call.

Your base formula should look like this:

When presenting this to the customer, do not itemize the pins. Sell the value: "I will reset your existing locks so they all work with one new key, and no one else has the old key."

Time Estimates and Efficiency

A standard pin-tumbler re-key on a deadbolt or knob should take you roughly 5 to 10 minutes per lock once you are set up. If you are quoting a job with 6 locks, you are looking at roughly an hour of labor. If you quote a flat rate per lock (e.g., $19 per lock), ensure that rate covers your time and the frustration factor of difficult cylinders.

Be wary of "smart" wafer locks or sidebar locks that look like standard pin-tumblers. If you encounter a Mul-T-Lock or Medeco cylinder, a standard re-key quote is invalid. These require specialized knowledge and possibly specialized codes. In these cases, you must stop and inform the customer that this is a high-security cylinder requiring a different pricing tier. Attempting to force a standard re-key quote on a high-security lock can result in breaking the cylinder, turning a $100 service call into a $300 liability.

Calculating the Replacement Quote

Replacement quotes are higher because they include hardware costs and significantly more labor. You are not just swapping pins; you are aligning the faceplate, ensuring the tailpiece fits the existing tailpiece or drive-in cam, and verifying the bolt throw is smooth.

For a standard residential replacement (Kwikset, Schlage, Defiant), your pricing structure changes:

You must carry inventory on your truck to make this profitable. If you have to buy the lock at a big-box store while the customer waits, you lose credibility and time. You should stock at least three tiers of hardware: a builder-grade (Grade 3), a residential standard (Grade 2), and a commercial grade (Grade 1).

Handling Door Prep

Replacement quotes often go wrong due to door prep. If the customer is replacing a 1950s mortise lock with a modern cylindrical deadbolt, the door likely has a large hole in the face that needs a "donut" or filler plate. If you quote a standard replacement rate but arrive to find rotted wood or a misaligned strike plate that requires chiseling and drilling, your profit vanishes.

Always quote replacement as "starting at" or add a line item for "Door Prep and Alignment." This covers the 20 minutes you might spend reinforcing the strike plate with 3-inch screws to prevent kick-ins—a value-add that justifies a higher price.

The Smart Lock Variable

In modern markets, the quote isn't just between re-keying and mechanical replacement; it involves electronic upgrades. When a customer asks about "keyless entry," you are moving from locksmithing to low-voltage integration.

Smart locks (August, Yale, Schlage Encode) have a higher hardware cost and a steeper learning curve for installation. You must quote for the following:

When quoting a smart lock, your labor should be higher—often double that of a mechanical lock—because you are providing a service, not just hardware. If the lock fails to connect to their Google Home or Apple HomeKit, you are the first person they call. Factor that troubleshooting time into the initial quote.

When to Recommend Retrofit

Suggesting a full smart lock replacement can be price-prohibitive for some clients. In these cases, offer a retrofit solution like the August Wi-Fi Smart Lock (which fits over the existing single-cylinder deadbolt) or the Lockly Vision. This allows you to upsell technology without requiring a full door prep or drilling new holes. The quote here is lower on hardware but higher on labor for the installation and setup.

Service Fees, Minimums, and Ethics

How you structure the "Service Call" or "Trip Charge" is often where new locksmiths lose money. This fee is not just for gas; it is for your availability. It covers the time you spent driving, the insurance on your vehicle, and the overhead of your licensing.

Never waive the service call if you perform work. It is the foundation of your revenue. If a customer refuses to pay the $89 trip charge after you have arrived and diagnosed the problem, you must be prepared to walk away. This is a safety and liability issue. Working for free or under duress devalues the trade.

Furthermore, be aware of the legal landscape. Many states, such as California and Texas, have strict regulations on how locksmiths advertise and quote. You must provide a written estimate or receipt before work begins. Failure to do so can result in fines. For example, the California Bureau of Security and Investigative States requires license numbers on invoices and vehicles (California Bureau of Security and Investigative Services, bsis.ca.gov).

If you are operating in a regulated market, your quote must be compliant. This means clearly distinguishing between "Labor" and "Parts" on the invoice. Vague charges like "Locksmith Service" are often flagged by regulatory bodies. Transparency protects you from audits and builds trust with the client.

Common Mistakes in Quoting

Even experienced technicians can fall into traps that erode margins. Avoid these common errors to ensure your quotes remain profitable.

When to Call Someone Else

There are scenarios where the most professional quote you can give is a referral. If you encounter a high-security system like an Interchangeable Core (IC) cylinder in a large facility, or an electromagnetic lock (mag lock) tied into a fire alarm system, and you lack the specific credentials or experience, do not guess.

Improperly installing fire-rated hardware can result in liability for life safety code violations. If the job involves commercial door closers (exit devices) or automatic door operators, and you are not certified in that specific hardware, refer the job to a commercial door specialist. Taking on a job you cannot complete damages your reputation and can be dangerous.

Licensing and Legal Compliance

Before you print your rate cards, you must ensure your business structure is legal. The requirements vary significantly by jurisdiction. For instance, if you are working in Locksmith Licensing in Florida (and the Two Cities That Add Their Own Rules), you need to be aware that state law preempts local regulation, except in specific instances where municipalities have carved out their own strict ordinances. Failing to verify these local nuances can result in cease-and-desist orders.

Always verify the status of your own license and the specific requirements for the city or county you are working in. Rules change frequently. A quote is a legal offer for services; if you are not legally allowed to perform those services, your quote is worthless and potentially actionable.

Additionally, maintain records of all quotes provided. In the event of a dispute, a written quote (even a text message or email) serves as evidence of the agreed-upon scope of work. This protects you against scope creep, where a customer asks for "just one more lock" after you have finalized the price.

Finalizing the Sale

Quoting is a sales pitch. When you present the numbers, do not apologize for the price. Explain the why. "I recommend replacing this deadbolt because the cylinder is worn and could be bumped easily. This new Grade 2 model comes with a reinforced strike plate." This positions you as a security consultant, not just a laborer.

If the customer balks at the replacement price, pivot to the re-key option but explain the limitations: "I can re-key this for $X, but please understand that the physical wear on the lock means it may stick again in the future. It is a temporary fix." Giving the customer the agency to choose builds immense trust.

Remember, your safety is paramount. If a job feels wrong—a customer is aggressive, the location is unsecured, or the request seems illegal—trust your instincts. Decline the quote and leave. No amount of money is worth your personal safety. If you encounter a situation that feels like a scam or a setup, refer to our guide on How to Spot a Locksmith Job That Puts You at Risk.

Mastering the quote takes time. You will underquote some jobs and overquote others. The goal is to refine your matrix so that your averages remain profitable. Track your time on every job for the first six months. Use that data to adjust your flat rates. By combining technical proficiency with transparent business practices, you build a reputation that sustains a career.

To refine these skills and learn the specific techniques for high-security pinning and smart lock integration, consider continuing your education. Review the Locksmith School Blog training overview to find advanced modules that can help you justify higher rates and tackle complex jobs with confidence.

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