About Us

You’d Be Nuts to
Call Anyone Else!





A Acorn Lock & Safe was founded in 1991 by Mark Buscemi in Weston Florida as a one-man operation. Now, almost 30 years later, the company has grown to 6 service technicians and an administrative staff that are ready to handle all your security needs.

We are a full-service locksmith company serving Broward, Palm Beach, and Miami-Dade counties. We provide service to homes, businesses, commercial institutions, homeowner’s associations, and more. Our technicians have over 90 years combined experience and can handle most service calls in one visit.

Some of the many services we provide are: lock-out services, keys, installation and repair of all types of locks, rekeying and masterkeying of lock cylinders, access control systems, overhead gate locks, emergency exit devices, mortise cylinders, door closers, door repairs, interchangeable core locks, door hinges and door pivots, safes sold and serviced, garage door keypads, keyless entry and door viewers. We feature high-security locks from Medeco and Mul-T-Lock. We are also authorized distributors and installers of EMTEK, a top quality designer hardware line.

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What makes our company unique in the industry?

We show up when we are scheduled for. We complete all agreed upon work promptly. We treat our customers like family. We want them to call us again!

What are our company’s greatest strengths?

We warranty everything we do. Your satisfaction is job 1! We are priced fairly within our industry. We want our customers to use us again and to refer us to friends and colleagues. We run a professional company with fully equipped service vehicles and can complete most service calls in one visit. All technicians carry picture ID. They are trained, professional, and courteous. We offer emergency service and can respond to most emergency requests within a few hours.

Our company’s industry experience

We are a local locksmith company serving all of South Florida. We provide service to homes, businesses, commercial institutions, homeowners associations, property management companies, academic institutions, and more. Our clients have grown accustomed to our reliable service and excellent work. In addition, we work with many national chains, mall stores, and service or facility maintenance companies who demand consistent quality service for their clients.

Why should a client choose our company?

We have been servicing South Florida for almost three decades. Most of our client base is repeat customers who continue to use us because of the quality of service we provide.

Knowledge, experience, and outstanding customer service have kept us in business since 1991. We are able to offer NET 30 terms to most of our commercial accounts. We welcome you to call us for more information.

Mark Buscemi


Mark Buscemi is the founder and president of A Acorn Lock & Safe, Inc. and has been servicing South Florida for almost 30 years. Originally from Deer Park, New York, Mark relocated to South Florida in 1987 and founded his business four years later in 1991.

Mark is a husband to his wife of 30 years, Annette, and a father to two children, Leondro (27) and Theresa (23). Mark is a parishioner of St. Bonaventure Catholic Church and has served as both an usher and as a member of the Knights of Columbus for over 10 years. He has, for the last 5 years, been an active member of Business Networking International, an organization through which he convenes and networks with other professional organizations in South Florida; he also served as president for 1 year.

Mark also held several leadership roles in the Boy Scouts of America for a total of 18 years, 11 of which were as Scoutmaster for Troop 183 in Davie, Florida.  Mark is a fan of Marvel comics, Star Wars, and anything outdoors. In his free time, he enjoys mountain biking with his kids, watching Marvel movies, and spending quality time with his family.

The A Acorn Team

Nilsa Perno


Nilsa Perno has held the position of Executive Assistant of A Acorn for 6 years. She was born in Chile and raised in New Jersey, and she moved to South Florida as a teenager. Nilsa’s interests involve live music and art. Her favorite thing about working for A Acorn is the opportunity to be a part of a family-oriented small business.

Carmen Diaz


Carmen Diaz has held the position of Office Manager of A Acorn for 9 years. She was born and raised in New Jersey, and in her free time she enjoys using her computer, sewing, and spending time with her grandchildren. Her favorite part of working for A Acorn is learning about the unique and unconventional industry of physical security.

Derrick Wright


Derrick Wright has worked as a technician at A Acorn for 10 years. He was born in Kingston, Jamaica, and he enjoys playing basketball and spending time with his grandchildren in his free time. His favorite thing about working for A Acorn is the dynamic nature of the work, and the ability to spend his day outdoors, moving around from place to place, rather than sitting in an office.

Roger Tuttle


Roger Tuttle has worked as a technician at A Acorn for 6 years. He was born in Philadelphia, Pennsylvania but was raised in Fort Lauderdale. In his free time, Roger enjoys growing and tending to his plants. His favorite thing about working for A Acorn is the ability to use his extensive knowledge of locksmithing and find creative solutions to solve unique problems.

Louis Perno


Louis Perno has worked as a technician at A Acorn for 4 years. He was born and raised in South Florida. Louis spends his free time wood-working, and he enjoys anything involving animals or art. His favorite thing about working for A Acorn is the professional and community-oriented management style and freedom of work.

Sean Kleese


Sean Kleese has worked as a technician at A Acorn for 1 year. A Florida native, Sean enjoys fishing and spending time with his family, as well as playing video games. His favorite aspect of A Acorn is the positive work environment and welcoming staff.