Family-Owned. 50+ Years Experience. Bonded & Insured.
Our Services

Lock rekeying, replacement, repair, and installation for homes in West Chester and surrounding communities. Whether you’ve just moved in or need to update your security, we handle it same-day.

From office buildings to property management portfolios, we secure commercial spaces with professional-grade hardware, exit devices, and master key systems.

The fastest and most affordable way to change who has access to your home or business. We rekey residential and commercial locks same-day throughout West Chester.

Locked out? Call us. We provide lockout services for homes,
businesses, and vehicles during business hours
(Mon–Sun, 8AM–8PM).
Jim was so nice good service would recommend to other family members!😀
Jim was timely, professional and efficient. I would highly recommend him to anyone.
Awesome guy and very thorough! Very kind and quick.
Showed up on time. New lock not needed. Door just needed an adjustment. Highly recommend!!!
They were fast and provided high quality work.
Fantastic service. Very professional and exact in every detail. I will definitely use their services for ay of my future needs. Thank you.
He was on time and did a great job. I would use him again.
Outstanding service. Very knowledgeable regarding my specific lock. Definitely would use again!
Communicative, timely, and offers services at reasonable prices. Would absolutely use them again in the future!
Always great service! Very friendly! Honest and straightforward!
Very good locksmith & very friendly!
Does what he says he’s going to do when he says he’s going to do it. Very professional from start to finish.
Excellent job! Very professional
Jim let me know when he was on his way. And arrived on time . He diagnosed the problem and repaired our front door lockset . VERY professional. THANKS
On time and very efficient!
Excellent quick service! Would use again for sure and refer. Thanks Jim.
Jim Lang always provides me great service.
Called and set a time, arrived on time, worked rapidly, did exactly what I asked and reasonable.
Professional and quick service
Excellent work near clean
On time, quick turnaround
Excellent work, Fast, Friendly, Efficient! I highly recommend
Was very happy that you were able to get to my home so quickly
Was on time. Did a good job. Was able to repair one lock so a replacement wasn’t necessary.
About Us
Jim Lang has been a locksmith since 1976 — before most of his competitors were founded. Over five decades, he has rekeyed new schools, secured commercial properties with hundreds of employees, helped elderly customers locked out in the cold, and rescued homeowners who were scammed by bait-and-switch locksmiths. He has trained over 25 locksmiths and holds an MBA, which means he runs his business with the same precision he applies to every lock.
Locksmith Doctor Company is family-owned, bonded, and insured. Jim answers the phone himself, gives honest estimates before he arrives, and charges nothing if he cannot help. That is not a marketing line — it is how he has operated for 50 years.
Areas We Serve
Residential service starts at $200. Commercial service starts at $225 with an average around $450. Lockouts are $175. We always provide an honest estimate over the phone before scheduling — no surprises when we arrive. Call (513) 257-0489 for a free estimate.
We serve West Chester Township, Liberty Township, Mason, Montgomery, Fairfield, Monroe, Blue Ash, Sharonville, Wyoming, Lebanon, Southwest Ohio and the Tri-state Area. Call (513) 257-0489 to confirm service to your location.