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Michelle Christensen
18 August 2026
Karl is responsive, efficient, kind and affordable! Thanks for your help with my portable safe Karl!
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Liezl Jacobson
8 August 2026
I remembered Karl did a great job with my mother's home a while back, so he was the first person I thought to call when I got a new home and needed to get locks changed. He was extremely professional, while also being honest about the existing locks being a better and more secure brand than the ones I had available to change to, so he did a re-key instead. He was even kind enough to run to the store to get batteries for the keypad lock. He was also very thorough, making sure I understood how to program the keypad, letting me try myself, and letting me try the new key on each door as well as make sure the old keys no longer worked. He even updated the locks to all use the same key! Karl will always be our go-to for any sort of lock or key services.
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Allin Kaplan
8 August 2026
Karl is a MASTER locksmith and provides excellent customer service. I had an old, locked safe with an unknown combination. Karl figured out the combination and unlocked it in less than one minute! And, he was SO NICE and would not even charge me! Seriously, where can you find such kind service nowadays? If you have any lock or key issues, please go see Karl. You will be very happy with his products and services. Thank you, Karl !!!!!
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Korinne Wolfmeyer
31 July 2026
Karl was quick, efficient, careful, and so knowledgeable for rekeying and replacing locks in our new home. Highly recommend!
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Lori Solomon
25 July 2026
Karl did an outstanding job repairing our front door lock. Other locksmiths told us it couldn't be fixed and insisted it needed replacement. Karl took the time to diagnose the problem, repaired the lock, and got it working perfectly. He saved us the high cost of replacement and clearly knows his craft. And he checked and then tweaked other door locks around my house out of courtesy! Skilled and highly recommended!!
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Amy Dinklenburg
26 June 2026
I called thinking I'd have to make an appointment for a later time. I was pleasantly surprised that they were able to meet me within a matter of minutes and take care of my situation quickly and professionally!
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Jeffery Wuestenfeld
25 June 2026
Great communication, excellent work, and very knowledgeable. Replaced and installed new lock on front door and Karl was awesome.
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Esmeralda Molchanov
5 June 2026
Karl was professional, knowledgeable, and easy to work with. He communicated clearly throughout the process and was able to open my safe quickly and efficiently. I appreciated his reliability and expertise, and I would gladly recommend him to anyone in need of locksmith services.
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Kiaan
29 May 2026
Coolnes
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Kim Tucker
12 May 2026
I was gardening outside and I was unexpectedly locked out of our house when the sliding back door locked on its own. The front was locked and the front storm door as well. Oh no, I had no keys and no phone. Fortunately my husband came home for lunch and we called Karlock. Karl was there in no time and fixed the problem so quickly. I am truly appreciative of his assistance and the speed at which he was able to come to our home and fix the problem. If you ever need a locksmith, this is the place to call. Great service and very accomodating. Friendly too!
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James Gomez
7 May 2026
I recently used Karlock Locksmith in Los Angeles, and I cannot recommend them highly enough. From start to finish, they provided absolutely incredible service. The customer service was outstanding right from my first call. They were highly responsive, professional, and ensured my issue was handled smoothly. Furthermore, the actual service was incredibly fast. They arrived promptly and worked efficiently to get the job done without any hassle. Beyond their speed and expertise, the staff was incredibly friendly. It makes a huge difference to work with someone who is both highly skilled and genuinely pleasant to interact with. If you need a reliable locksmith in the LA area, look no further. Excellent work, fast response, and wonderful people!
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Alexis
20 April 2026
Me and my husband closed on our home and gave Karlock a call the same day. Surprisingly, Karl came over within just a few hours and was able to re-key three of our deadbolts and provide 4 spare keys. The cost was not out of the norm. Karl was fast, super friendly, helpful, and we are happy with the service we got! Will definitely continue using this company for future needs.
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Juliet Rojas
18 March 2026
Karlock - Karl is the type of contractor who will keep at a job that is difficult until he gets it right. I am so thankful that I contacted Karlock to help me to replace a vintage door lock. He went the extra mile and checked all of the other locks in my home to make sure that everything was perfect. Highly recommended. Karl is a competent expert who really cares about his customers.
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Roger
11 March 2026
Karl came out within 3 hours and took care of everything quickly and efficiently. Not only did he fix what I called about, but he also caught and repaired a few issues I wasn't even aware of. He was friendly, fast, and incredibly knowledgeable. I won't be calling anyone else for locksmith help — Karl is my go-to from here on out!
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Donna Rappin
6 December 2025
We were locked out. He got here quickly and got us in. Great job and so helpful!! Thank you!!
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Joshua Staman
4 December 2025
I can’t recommend Karlock enough. My experience was personalized, personable, and just what I needed.
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April Miller
29 November 2025
I first used Karlock when I moved into my new townhome about four years ago. I called again to get a lock repaired, and one day later, Karl was here to fix the lock. Karlock is responsive, efficient and has fair prices.
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Sean Goodwin
20 November 2025
This was my second time using Karlock for work at my house and Karl did a great job again. He came same-day to install a deadbolt on a door that didn't have one. The work was done well and I appreciate the good job cleaning up. Won't hesitate to call back a third time when it comes.
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Jesse Brennan
18 November 2025
Karl was very helpful and polite from the moment I called inquiring about some motorcycle keys. He got me in and out in such a respectable amount of 2 seeing as I got 3 different keys copied by 2x. I will definitely be using him again and recommending his services
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Ryan Zimmerman
13 November 2025
Reliable, knowledgeable and top notch in the business. I would highly recommend Karl. Thank you for all your help and for all of your quick responses. He truly cares about his customers.
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Meng Shi
3 November 2025
Great service, they came very fast. The work was professionally done. Thank you Karl!
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Ramona Salazar
19 October 2025
He was Fast Efficient Professional Compassionate and Caring to my situation. This is The 1St Locksmith who made a big difference of me sleeping in my car or Not. We need 100 more like him.👏😊
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Kevin K
27 August 2025
Pleasant and reasonable. Also a nice guy to talk with and actually convinced me to drop Xfinity and do Tmobile internet, which has been great. Would use again if I ever ran into lock issues.
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陈Shelly
31 July 2025
Very nice owner, will definitely recommend to anyone who needs key service.
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Micah Good
27 July 2025
Quick and amazing service.
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Ensure the security of your Mundelein property with the peace of mind that skilled locksmithing provides. With over 25 years of combined experience, our locksmith in Mundelein delivers personalized locks and dependable security systems to safeguard your home or business. Connect with us for trusted, customized solutions.
Why Trust Our Residential and Commercial Locksmith Services?
At Karlock Inc, we’re committed to providing friendly, professional locksmith solutions that prioritize your safety and peace of mind. Here’s what sets our Mundelein locksmith apart:
- Over 25 years of trusted experience in the locksmith field
- Quick, reliable service throughout the North Eastern Chicagoland area
- Availability for same-day services when you need us most
- A locally-owned, family-run business rooted in community care
Choose us for locksmith services in Mundelein that are fast, dependable, and delivered with kindness and professionalism.
You can check out our reviews here.
Locksmith Services
- Residential
- Locks Rekeyed
- Deadbolts
- Installs
- Commercial
- High Security
- Smart Locks
- Key Duplication/Customization
- Emergency Lockout Services
- New Key Services
- Automotive Lockout Assistance
- Safes