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Automotive locksmith - Boston & Greater Boston

Car Keys Made & Copy Service

Spare Car Keys • Replacement Keys • Cutting & Programming

Need a spare car key or a replacement? Share your vehicle make, model, year and whether a working key remains. Our team will review suitable cutting and programming options for your vehicle and location.

(617) 272-7007
Call for ServiceConfirm availability and schedulingRequest a QuoteShare vehicle and key detailsAutomotive ServicesKeys, fobs and vehicle access
Spare key duplication
Replacement key options
Cutting & programming
Vehicle-specific review

Child locked in a car? Call 911 first. If someone is in immediate danger, contact emergency services first.

Emergency guidance

Replacement and spare car keys

Find the right next step for your car key request.

Spare key duplication

Ask about making an additional key while a working one is available. Tell us how many working keys you have.

Lost key replacement

Provide the vehicle details and tell us whether any working key remains so the team can review replacement options.

Cutting and programming

We confirm the key type and programming requirements for your vehicle before confirming the service.

Vehicle compatibility, service availability and pricing are confirmed for your request.

Send vehicle and key details

Plan your service

From a key request to a tested replacement or spare.

1. Share your vehicle and location

Provide the make, model, year and service address. Tell us whether you need a spare key or have lost the keys, and whether any working key remains.

2. Review the suitable key service

Key type, vehicle systems and the keys you already have determine the cutting and programming options. Availability is confirmed for your request.

3. Confirm the work and test the key

Have identification and proof of ownership or authority ready. Confirm the scope and price before work begins, then test the completed key with the technician.

Common questions

Before you book

Can you make a spare while I still have a working car key?

Ask our team about spare key duplication for your vehicle. Include the make, model, year and number of working keys so the appropriate key, cutting and programming options can be reviewed.

Can I request a replacement if all my car keys are lost?

Yes, you can send a replacement key request. Tell us that no working key remains and provide the exact vehicle details and location. Compatibility, service availability and pricing are confirmed individually.

Does a copied car key always need programming?

The requirements depend on the key type and vehicle system. Tell us what key you currently use so the team can review whether your request involves cutting, programming or another suitable service.

About SherlockLock car key services

Vehicle details help us match the key service to your request.

SherlockLock helps drivers in Boston and Greater Boston with spare and replacement car key requests. This page is a starting point for key cutting and copy services, with links to dedicated transponder and smart key information when those services fit your needs.

An extra key while a working one remains and replacement after all keys are lost can require different next steps. Share the vehicle make, model, year and location so our team can review the key type, cutting and programming requirements. Confirm compatibility, availability and price before work, and have identification and proof of ownership or authority ready.

Get to know SherlockLock

Customer experiences

What customers say about SherlockLock

Read feedback from SherlockLock customers about vehicle keys, unlocking and other locksmith services. These reviews cover our wider service team.

Explore all customer reviews

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Useful information for your next step.

Transponder keys madeCar door unlockingSmart key duplication & programmingIgnition repair & replacementCar lock rekeyingKey fob shell replacementLost car key deletionAll automotive servicesAutomotive service locationsCustomer reviewsFind your car modelDealership programChild locked in a car: call 911 first

Ready to ask about a spare or replacement car key?

Send your vehicle make, model, year and service address. Tell us whether a working key remains so we can review suitable key options, availability and pricing.

Call (617) 272-7007Request a QuoteAutomotive Services