Locksmithing/Expert Profile

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I can answer questions about commercial locks, card access systems, locksmithing except for cars, safes & safe opening, video surveillance and master key systems

Experience in the area

35 years as a locksmith, security system designer and installer, trouble shooting and repair of all manner of security related equipment


Associated Locksmiths of America, Safe & Vault Technicians Association


Attended Miami University, Kent State University, continuing education through the Associated Locksmiths of American

Awards and Honors

Certified Master Locksmith. Certified ALOA instructor.

Past/Present Clients

Numerous Fortune 500 companies, DOD, and other governmental agencies

Average Ratings

Recent Reviews from Users

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    K = Knowledgeability    C = Clarity of Response    P = Politeness
Ted11/16/16101010Thank you Dan Terrigno. I will try .....
Ofi 10/11/16101010Thank you Mr. Dan, I will try .....
Tom06/06/16101010Dan, your answer was enough for me .....

Recent Answers from Dan Terrigno

2016-11-14 CAS HS200:

The dialing sequence should be either LRLR or RLRL as:    4 times left to the first number,  3 times right to the second number,  2 times left to the third number,  1 time right stopping on the fourth

2016-09-27 Brook National replacement:

Marks Lock,   A lock manufacturer, makes mortie locks that fit this prep.     You need to do some measuring to pick the right size.    Or you can find a local locksmith that sells Marks locks and has a

2016-09-25 Brook National replacement:

Can you post a pic of how the door is drilled? I.e: big pocket on edge of door? 2 holes through the door, etc    Thanks Dan

2016-06-19 Lost lock key dead batteries:

Hi Michael. Is there any other name on the safe? Pro Series is a model for a couple of different manufacturers. Or a pic would help.    I know some safe guys in NM. They may be listed on the Safe and Vault

2016-05-30 open my safe mosler:

Hi. The Mosler Safe Company went out of business about 15 years ago. Even if they were still in business the combination was changed when it was delivered.    You would have to hire a professional (emphasis


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