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Can a Locksmith Make a Key From a Lock? House Keys, Car Keys and What to Bring (Tacoma)

Yes. A locksmith can make a key from a lock when no key exists, by decoding or impressioning the lock or cutting from the manufacturer’s code, for most house deadbolts and knobs, mailbox, cabinet and padlock cylinders, and most car door and ignition locks. Two conditions: the lock must be a type that can be keyed from scratch, and you must prove ownership first. Peak Locksmith originates house keys and car keys from the lock across Tacoma and Pierce County, with every job quoted upfront by phone before dispatch. The short version:

  • House, mailbox, cabinet and common padlocks: yes, the lock is decoded or impressioned and a key is cut on site.
  • Cars: yes for most makes, cut by VIN code or from the door lock, then programmed; proximity keys on some makes are dealer-only.
  • When it is a no: Medeco and Mul-T-Lock restricted keyways (authorized dealer only), USPS-owned mailbox compartments, and any lock or vehicle you cannot prove you own.
Peak Locksmith technician cutting a new house key on a key machine in the back of the service van on a Tacoma street
A key made from a lock is cut on the key machine in the van once the lock has been decoded, so the customer gets a working key without a new lock.

How does a locksmith make a key from a lock?

A locksmith makes a key from a lock by learning the lock’s cut depths and then cutting a blank to match. There are three ways to learn those depths, plus one shortcut the dispatcher always asks about, and a Tacoma technician picks one based on the lock in front of them.

  • Decoding the cylinder. The technician removes the lock cylinder (the part the key goes into), reads the height of each pin or wafer with a gauge or by eye, converts those heights to a depth code, and cuts a key to that code on the machine in the van. This is the most common method for house deadbolts, knobs, mailboxes and cabinet locks, and the lock goes back on the door unchanged.
  • Impressioning. Impressioning means making a key with the lock as the template: a blank key is worked in the lock and the marks the pins leave on the blank show where to file. It is slower than decoding and suits simple cylinders and padlocks where removing the cylinder is awkward. The technician ends with a key that was made by the lock itself.
  • Cutting from the factory code. Many locks ship with a code: on the face of a cabinet, desk or mailbox lock, on the original key tag, or in the manufacturer’s records. Vehicle key codes are held by the automaker and released to credentialed locksmiths by VIN (more on that below). With the code, the technician cuts the key directly without touching the lock.
  • Keyed-alike reference. If the locks in a home were keyed alike and one working key still exists for any of them, that key is the master for all of them and can simply be duplicated. The dispatcher asks about this on the phone because it is the fastest path.

This article explains what each method is, not how to perform it. Opening or decoding a lock you do not own is a crime, and Peak Locksmith checks ownership before any of this work starts.

Which locks can be keyed from scratch and which cannot?

Most of the locks on a Pierce County home can be keyed from scratch, but not all. The table is built from the locks Peak Locksmith sees on Tacoma, Lakewood and Puyallup doors and from the manufacturers’ own key control rules.

Lock typeKey from lock?How it is doneWhat to know
Standard pin tumbler deadbolts and knobs (Kwikset KW1 and Schlage SC1 keyways, the two most common on local homes)YesDecode the cylinder or impression it, cut on siteThe lock stays on the door. If you suspect someone else has a key, ask for a rekey instead so the old key dies.
Kwikset SmartKey cylinders (the small reset slot next to the keyway)Yes, as a resetKwikset states that SmartKey rekeying requires the current working key; without it, a locksmith resets the cylinder with the SmartKey reset tool and teaches it a new keyThe lost key is not reproduced, the lock gets a fresh key, which is the better outcome anyway.
High-security restricted keyways (Medeco, Mul-T-Lock)No, not by a general locksmithMedeco states its patented keys may only be duplicated by Medeco or an authorized Medeco service outlet at the owner’s request; Mul-T-Lock requires the owner’s magnetic key card at an authorized dealerBring the authorization card and ID to the authorized channel. If the card is lost too, the usual fix is a new cylinder.
Private mailbox, cabinet, desk and file locksYesCut from the code stamped on the lock face, or decode the small cylinderPeak Locksmith does not open or key USPS-owned cluster box compartments; those go through the post office.
PadlocksSometimesImpression or decode common laminated and brass padlocks; cut from the serial where the maker supports itShrouded, restricted or disc detainer padlocks are often not worth keying; a new padlock is usually the better call.
Smart locks and keypad locksNo key to makeRe-enroll user codes and the app account instead; many models carry a mechanical backup cylinder that is keyed like a standard deadboltIf the backup key is lost, rekey or replace the backup cylinder and keep the codes.
Car door and ignition locksYes, for most makesCut by VIN code or decode the door lock, then program the transponder or fobProximity keys on some makes need dealer tools. See the next section.
Peak Locksmith technician reading the pins of a removed deadbolt cylinder with a flashlight on the porch of a Tacoma craftsman home
Decoding a deadbolt: the cylinder comes off the door, the pin heights are read, and a key is cut to those depths. The hardware goes back on unchanged.

Can a locksmith make a car key without the original?

Yes. A locksmith can make a car key without the original for most vehicles on Tacoma roads, and the job has three parts.

  1. Get the cuts. The technician pulls the key code from the automaker by VIN, or decodes the driver’s door lock. Automakers release key codes only to locksmiths who hold a Vehicle Security Professional credential through the National Automotive Service Task Force (NASTF), and only after ownership is verified. The key is then cut on a code machine, edge cut or laser cut depending on the model.
  2. Program the transponder. Almost every car built since the early 2000s carries an immobilizer, an electronic check that stops the engine unless it recognizes a chip (the transponder) in the key. The new key’s chip is paired to the car with a diagnostic tool plugged into the port under the dash, and on most makes the old, lost key is erased from the car’s memory in the same session so it can no longer start the engine.
  3. Pair the remote or fob. Lock and unlock buttons, and push-button-start proximity fobs, are programmed as a separate step. The detail of that process is covered in the guide to key fob programming in Tacoma.

The limit is make-dependent. Proximity keys on some makes and model years require dealer-only tools or online access to the automaker’s security gateway, and a few are not supported outside the dealership at all. When you call with the year, make and model, the dispatcher tells you whether Peak Locksmith can do the key on site or whether the dealer is the right call, before any technician is sent. For a lost-key situation where the car has to be moved the same day, the car key replacement guide covers what happens at the curb; for a spare while you still have a working key, car key duplication is the faster, simpler service.

Peak Locksmith technician programming a newly cut transponder key with a diagnostic tablet in the driver's seat of a grey sedan in Tacoma
After the key is cut from the code, the transponder chip is paired to the car’s immobilizer from the driver’s seat.

What proof of ownership do you need?

A locksmith will not make a key from a lock without proof that the lock or the vehicle is yours, and Peak Locksmith’s dispatcher asks about it before dispatch so nobody is turned away at the door. This is the checklist the technician works from.

  • Vehicles: a government photo ID plus the Washington title or current registration in the same name. The Washington Department of Licensing describes the title as the document that establishes proof of ownership for a vehicle, and the registration ties the plate to the owner. If the car is registered to a company, bring the registration plus something that ties you to the company. If the car is registered to someone else, that person needs to authorize the work.
  • Homes: a photo ID showing the address, or a photo ID plus a lease, a utility bill or a deed for that address. A landlord or property manager shows the management agreement or a document tying them to the property.
  • Businesses: a photo ID plus a business card, a lease or a letter from the owner naming you as authorized for that location.
  • Loose locks: a padlock, cabinet lock or cylinder brought to the technician in hand is keyed only with the same proof. Possession of the lock is not proof of ownership.

The technician records the ID and the vehicle or address on the invoice. For car keys this is not optional: NASTF requires its registered locksmiths to verify proof of ownership or authority before any security operation and to keep the customer authorization on file. If you cannot show ownership, the honest answer from any Tacoma locksmith is no.

Key from lock vs. rekey vs. replace: which is cheaper and when?

Making a key from a lock is usually the lightest job of the three because no hardware changes: the existing lock stays and one new key is cut. A rekey adds new pins so the old key stops working. A replacement adds new hardware. Which one makes sense depends on why you have no key, and the table below is the decision Peak Locksmith walks through on the phone. The exact figure for your lock or vehicle is quoted upfront by phone before dispatch.

SituationBest optionWhy
Lost the only key, the lock is sound, nobody else is likely to have a copyKey from the lockKeeps the hardware, keeps key control, least work of the three.
Lost a key that had your address on the ring, or an ex-roommate, contractor or former tenant still has oneRekeyThe missing key must stop working. A key made from the lock would leave it live. See rekey vs. replace locks for the full comparison.
Several doors on different keys and you want one keyRekey all doors alikeOne cylinder’s new key becomes the key for every door; a key from one lock would only open that lock.
The lock binds, sticks, is corroded from a wet Puget Sound winter or dates from the 1980sReplaceA key cut to a worn cylinder works badly from day one. New hardware is the honest fix.
Medeco or Mul-T-Lock cylinder, keys and authorization card both lostAuthorized dealer, or replace the cylinderNo general locksmith can originate the key; the card program controls it.
Smart lock with a lost backup keyRekey or replace the backup cylinder, keep the codesThe electronic side needs no key; only the mechanical override does.
Car: lost the only key, nothing else missingKey from VIN code or door lock plus programmingStandard all-keys-lost job on most makes.
Car: key stolen with the registration or addressKey from code plus erase the old key from the immobilizerThe lost key must stop starting the car, not just be replaced.

Washington specifics: “do not duplicate” keys, restricted keyways and rental timing

“Do Not Duplicate” is a request, not a law. In the United States the stamp carries no legal force on an ordinary key, and locksmith trade bodies describe stamped keys as not effective security because they give a false sense of control. If a Tacoma landlord, HOA or employer needs real control over who can get a key, the answer is a patented restricted keyway such as Medeco or Mul-T-Lock, where the manufacturer’s card program decides who may order keys, not the stamp.

Landlords may have a key made, but may not lock a tenant out. Under RCW 59.18.060 a Washington landlord must furnish keys to the tenant and safeguard any master or duplicate keys, so having a key originated for a unit the landlord has lost keys to is legitimate. Changing or rekeying the lock on an occupied unit to exclude the tenant is not, under RCW 59.18.290. The right moment to rekey is at turnover, and the guide to rekeying a rental property in Washington covers that timing, the deposit rules and the Tacoma Rental Housing Code.

Vehicles: the title is the ownership document. Washington’s Department of Licensing issues the title as the document that establishes proof of ownership, and the registration is renewed each year with tabs on the plate. A lost title or registration is replaced through the DOL, and that replacement is what to request first if both the key and the paperwork went missing together.

The trust line. Peak Locksmith LLC is a registered Washington State contractor, L&I registration PEAKLLL788MG (Locks, Security and Alarm Equipment), UBI 604 894 118. Any Washington contractor registration can be checked at secure.lni.wa.gov/verify before you hand over an ID and let someone work on your locks.

How Peak Locksmith makes a key from a lock in Tacoma

If you are asking how to get a key made without the original, the phone call is the first step. A key-from-lock call to Peak Locksmith starts with three questions from the dispatcher: what the lock is (deadbolt, mailbox, padlock, or the year, make and model of the vehicle), whether any working key exists for any lock in the set, and what proof of ownership you have. The dispatcher quotes the job by phone before anyone is sent. On site the technician checks the ID and the paperwork against the address or the vehicle, decodes or impressions the lock or cuts from the code, tests the new key from both sides of the door, with the door open and closed, or in every lock and the ignition on the car, hands over the agreed number of keys, and leaves an itemized receipt. If the lock turns out to be a restricted keyway or a vehicle that needs dealer tools, the technician says so before any work is billed and points you to the authorized dealer or dealership.

House, mailbox, cabinet and padlock keys are handled through the residential locksmith service; cars, trucks and fobs through the automotive locksmith service. The same mobile units cover Lakewood from the locksmith Lakewood page, along with University Place, Puyallup, Federal Way and Fife. If you are standing outside a locked door with no key at all, the step-by-step for being locked out of your house in Tacoma comes first; the key gets made once the door is open.

Frequently Asked Questions

Can a locksmith make a key from a lock without the original key?

Yes. For standard pin tumbler deadbolts, knobs, mailbox and cabinet locks and common brass or laminated padlocks, a locksmith decodes or impressions the lock and cuts a new key on site, with no original needed. Restricted keyways such as Medeco and Mul-T-Lock are the exception: only the manufacturer or an authorized dealer with the owner’s card may make those.

Can a locksmith make a car key without the original?

Yes, for most makes. The locksmith cuts the key from the automaker’s code by VIN or by decoding the door lock, then programs the transponder and fob to the car. Proximity keys on some makes need dealer tools, so give the dispatcher the year, make and model when you call.

How does a locksmith make a key without the original?

By decoding the lock cylinder (reading the pin or wafer heights and cutting to that depth code), by impressioning a blank in the lock, or by cutting from the manufacturer’s key code. A technician chooses based on the lock type; all three produce a working key and leave the lock in place.

What do I need to bring for a locksmith to make a key in Washington?

A government photo ID plus proof the lock or vehicle is yours: the Washington title or registration for a car, and an ID showing the address, a lease, a utility bill or a deed for a home. A locksmith will refuse the job without it.

Is it cheaper to have a key made from the lock or to rekey?

Making a key from the lock is normally the lighter job because no hardware or pins change. Choose a rekey instead whenever the missing key could be in someone else’s hands, because a key made from the lock leaves the old key working. Peak Locksmith quotes either job upfront by phone before dispatch.

About Peak Locksmith

Peak Locksmith is a locally owned and insured mobile locksmith company based in Tacoma, Washington (98409), serving Pierce County including Lakewood, University Place, Puyallup, Federal Way and Fife. Technicians respond 24 hours a day, 7 days a week for car lockouts, home lockouts, rekeying, lock installation and repair, car key duplication, key fob programming and commercial access control. Every job is quoted upfront by phone before dispatch. Peak Locksmith LLC is a registered Washington State contractor (L&I registration PEAKLLL788MG, Locks, Security and Alarm Equipment). Reach Peak Locksmith any time at (253) 262-5630.

Published October 19, 2026. Sources checked October 2026:Kwikset SmartKey Security FAQ; Medeco BiLevel key control; Mul-T-Lock MTL 800 key duplication policy; NASTF Vehicle Security Professional Registry; Washington DOL, buy and register a vehicle; RCW 59.18.060; ALOA, what services does a locksmith provide.

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