Call Us: 847-456-4873847-456-4873

Over 40 Years Serving Cook, DuPage, Lake, Kane and McHenry Counties

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About North Star Lock Service

With over 40 years of experience in the locksmith industry, we have a level of knowledge that allows us to provide you with the products you need, and what it takes to keep your residential and commercial properties safe.

We learned long ago that doing the job right from day one is the ONLY way to go!

The owner of North Star Lock Service, Jim Carpenter, has worked with some of the largest locksmith shops in the Northwest and Northern Suburbs.

Jim has also completed work for residential properties and corporations large and small. Some of these projects include developing and implementing master key systems, camera systems, card access systems, door closers, doors and frames installation, digital locks, digital garage keypads, garage door openers, high security locks and hardware, electric strikes, magnetic locks and repairing aluminum and steel doors. Just to name a few…

Jim is a long time resident of McHenry, Illinois. He prefers to travel to his clients companies and homes because it gives both himself, and the client, a better feel for the project at hand from the first handshake. Jim is well respected in the Locksmith industry, and his friendly outgoing nature makes clients feel at ease. We often receive the greatest compliments of all with repeat business and client referrals!

  • Jim has been my go-to locksmith for over 10 years. He has been very responsive every time I have needed his help. Jim can do it all--he has changed locks, installed deadbolts, repaired locks, installed key card systems and installed a security camera system. Every time I have worked with Jim, he has been prompt, efficient, pleasant and economical. I would definitely recommend Jim for all your locksmith needs.


    Donna P.
    Woodstock, IL

  • We've had work done by North Star Lock Service and highly recommend them to anyone! Jim Carpenter has replaced steel doors,, installed video monitoring systems, electric strike pad on our entry door and more. He's reasonable in price and easy to work with, a great sense of humor!


    Sandra L.
    Palatine, IL

  • Jim got me squared away with new locks for my new home. Great service and highly recommended!


    Jeff S.
    Port Barrington, IL

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Welcome Northern Key & Lock Customers!

It's our honor to continue the same great service that you've become used to with Northern Key & Lock. You may remember us from 20 years ago when we worked for Northern Key & Lock. It's our pleasure to continue to handle your security needs both at home and at work. 

CRL Certified

IL #191-000312

We come to You,
A shop on wheels.