Key Duplication

Quick answer: Key duplication is the process of cutting a new key from an existing original or, when no original exists, decoding the lock to create a working replacement. Low Rate Locksmith, a licensed and bonded 24/7 mobile locksmith, sends technicians directly to your location with professional key-cutting equipment, handling standard house keys as well as high-security and restricted keyway duplications for residential properties.

Key Duplication is one of the most common residential locksmith services — and one of the most misunderstood. Whether you need a spare house key cut from an existing original or require Key Duplication after losing your only copy, this page explains exactly what the service covers, what affects your quote, and how to confirm the right path before you call. Our mobile technicians bring key-cutting equipment directly to your location across the USA and Canada, subject to regional licensing and coverage availability.

What Key Duplication IS — and What It Is NOT

This service covers on-site cutting of residential door keys when you have an original key to copy, or — in certain cases — originating a new key from your existing lock when no original is available. A mobile locksmith arrives at your home with portable key machines, selects or sources the correct blank, and cuts a working duplicate on the spot.

Who Key Duplication Is FOR — and Who It Is NOT For

How We Do It: The On-Site Key Duplication Process

1. Phone consultation: You describe the key type, lock brand (if known), and whether you have a working original. The dispatcher confirms whether this is a standard duplication or a key-origination scenario and provides a preliminary quote range.
2. Ownership verification: Upon arrival, the technician verifies your identity and right to the property. Requirements vary by state and province — some jurisdictions require government-issued ID matching the address; others accept lease documents or utility bills. The technician follows the applicable local licensing and verification standards for the service area.
3. Key and lock assessment: The technician examines your original key (or lock, if no key exists) to identify the keyway, determine whether the correct blank is on-hand, and confirm the work can be completed on-site. If key origination is needed (no original available), this may involve cylinder removal, decoding, or impressioning — additional time and labor that will be quoted before proceeding.
4. Cutting and testing: The key is cut using a portable key machine, then tested in your lock to confirm smooth, reliable operation. Adjustments are made as needed.
5. Final walkthrough: You test the new key yourself. The technician confirms everything works and provides your invoice.

How Our Pricing Works for Key Duplication

Every mobile service visit includes three separate cost components. Here is how each applies to key duplication:

• $45 Service Call Fee: This flat fee covers travel and dispatch to your location. It applies to every visit regardless of the work performed. This is not free travel — the fee is charged even if you decide not to proceed after the on-site assessment.
• Per-Key Duplication Rate (Labor + Blank): Standard residential keys (KW1, SC1, and similar common pin-tumbler keyways) typically range from $5–$20 per key during business hours when duplicating from an existing original. However, this range reflects common keyways only. Specialty keys — including dimple, tubular, and less common residential keyways — often run $25–$50+ per key due to higher blank costs and specialized cutting equipment. Specialty pricing is confirmed before cutting.
• After-Hours Surcharge: A $75 surcharge applies for service outside standard business hours (evenings, weekends, holidays), added to the total job cost.

Key origination (no original key available) involves additional labor for cylinder removal, decoding, or impressioning. This work is quoted separately on-site before proceeding, as complexity and time vary significantly by lock type and condition. In many lost-key situations, rekeying may be a more cost-effective solution — your technician will advise on both options.

Restricted/high-security keys requiring dealer authorization are quoted explicitly after the keyway is identified and authorization feasibility is confirmed. Some restricted platforms cannot be serviced on a mobile visit regardless of pricing.

Real-World Key Duplication Scenarios

1. Spare keys for a new home purchase: You just closed on a house and want four copies of the front and back door keys for family members. The technician arrives, confirms both locks use standard Kwikset keyways, and cuts eight keys on-site. Since you’re new to the property, the technician also mentions that a home security assessment can identify whether previous owners’ keys should be invalidated through rekeying.

2. Worn key replacement before it fails: Your front door key has been getting harder to turn, and you notice visible wear on the cuts. The technician examines the original and cuts a fresh duplicate from a code reading rather than copying the worn profile. While on-site, the tech checks the lock cylinder and recommends lock repair if internal wear is contributing to the stiffness.

3. Lost key with only one entry point: You lost your only house key but can access the home through an unlocked sliding door. You need a new key made. The technician removes the front door cylinder, decodes the pins, and cuts a new key — but also explains that rekeying the lock would prevent anyone who finds the lost key from using it. While there, you ask about securing the sliding door, and the tech discusses sliding glass door lock repair options.

4. Tenant move-out key management: A landlord needs copies of freshly rekeyed locks for three units. After new lock installation on one unit and rekeying on two others, the technician cuts two spare keys per lock on the same visit, bundling the duplication work efficiently. The landlord also inquires about smart lock options to reduce future key management overhead.

5. Post-break-in security restoration: After a burglary, you had break-in repair performed and new locks installed. Now you need spare keys for the replacement hardware. The technician cuts duplicates from the new originals and suggests improving door and window security as part of a broader hardening plan.

6. Home safe key — referral scenario: You ask for a duplicate of your floor safe key. On inspection, the technician identifies it as a tubular key requiring a blank that isn’t stocked on the mobile unit. Rather than attempting a substandard cut, the tech refers you to the safe manufacturer for a factory-cut replacement or recommends scheduling a safe opening service if you’ve already lost access.

7. Specialty keyway identification: You request copies of a key that looks unusual — shorter than normal with angular cuts. The technician identifies it as an Abloy-style disc-detainer key and explains that this is a restricted platform requiring dealer authorization. The tech documents the keyway and lock model so you can contact the authorized dealer directly, and no duplication charge is applied beyond the service call fee.

When to Call for Key Duplication — and When to Stop

Call when:

• You have a working original and need copies
• Your key is wearing down and you want a replacement cut before it fails
• You’ve lost a key and need origination from the lock (understanding that rekeying may be recommended instead)
• You need keys cut after a lock change or rekey

Stop — this isn’t us — if:

• Your key says “Do Not Duplicate” on a restricted keyway: While “Do Not Duplicate” stamps on standard keys carry no legal weight, keys on genuinely restricted platforms (Schlage Primus/Primus XP, ASSA, Medeco, Abloy, Evva, KeyMark, and others) require factory or authorized-dealer processing. A mobile technician cannot legally or mechanically bypass these controls.
• You need a USPS mailbox key: Cluster mailbox units are federal property. Contact your local post office for replacement keys.
• You need automotive key cutting or programming: This requires different equipment and is covered under automotive locksmith services, not residential key duplication.
• Your lock has an electronic or smart credential system: If there’s no physical key involved, you need credential programming — not key cutting.
• Your home safe uses a specialized key type: Tubular, lever, and double-bitted safe keys often require factory blanks not carried on mobile units. The technician will identify the key type and refer you appropriately rather than attempt an unreliable cut.
• Licensing or authorization limitations in your area: Locksmith licensing requirements vary by state and province. In some jurisdictions, specific certifications or registrations may be required for certain services. Coverage availability and technician credentials are confirmed during scheduling.

Related help: property management locksmith, home security assessment service, and re-pinning locks.

More to explore: Broken Key Extraction, Safe Services.

Frequently Asked Questions About Key Duplication

What does this service cover?
This service covers on-site cutting of residential door keys — either duplicating from an existing original or, where feasible, originating a new key from the lock itself when no original exists. It includes standard pin-tumbler keys and, where blanks and equipment allow, certain specialty keys. Restricted/high-security keyways that require dealer authorization are outside the scope of on-site mobile duplication.

What affects the quote?
The main cost drivers are: the number of keys, whether you have an original to copy from (vs. key origination, which involves more labor), the type of keyway (standard vs. specialty/dimple/tubular), whether the visit falls during business hours or after-hours (+$75 surcharge), and the $45 service call fee that applies to every visit. Specialty blanks can significantly increase per-key cost beyond the standard $5–$20 range — often $25–$50+ per key.

What should I have ready?
Have your original key available if you have one, know the lock brand if possible, and prepare proof of ownership or right to the property (government ID, lease, or utility bill). If you don’t have an original key, let the dispatcher know during scheduling so the technician arrives prepared for key origination or can advise on rekeying as an alternative.

How do I confirm the right service path?
Call and describe your situation — the dispatcher will help determine whether standard duplication, key origination, rekeying, or a different service is the best fit. If you’re unsure of your key type, you can text or email a photo of the key and lock to help with pre-arrival assessment. The technician will also confirm the correct approach on-site before any work begins, and you’ll receive a quote before proceeding.

Call Low Rate Locksmith: (833) 439-8636

Mobile dispatch available 24/7 across service areas in the USA and Canada, subject to local coverage and technician availability. A $45 service call fee applies to every visit — this covers travel and dispatch and is charged regardless of whether you proceed with the work. No time-of-arrival promises are made; scheduling depends on technician availability in your area. Call (833) 439-8636 to describe your key situation, confirm coverage, and get a preliminary quote range before dispatch.