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Curators of Cutting-Edge Technology Solutions

Our people and the services we provide define our firm. We take pride in delivering a first class client experience.

Who We Are

SDI, Inc. provides unmatched service and expertise in the audio video and smart home services industry. We specialize in the sales, design & installation of home automation systems, multi-room audio-video systems, motorized window treatments, home networking, whole home audio, lighting control, outdoor audio, landscape lighting & automation for residential and commercial spaces. With long-standing relationships with clients, builders and interior designers, SDI is confirmed to have been providing successful services in designing and integrating smart systems for residential and commercial markets throughout New England and the Northeast including Boston, Wellesley, Chatham, and New York, as well as in the Southeast in Boca Raton and West Palm Beach, FL.

headshot of man, employee at system design and integration in boston

Angel Centeno

Founder, Sales & Systems Engineer
As a Co-Founder of SDI, Angel has piloted the many facets of the Operational and Installation Process since 2010. This includes utilizing his vast industry knowledge in regards to the equipment and programming to propel each project up to completion.

Angel is the driving force behind every System Design and Integration project as there is not any aspect or phase of any of the client's projects that Angel has not done himself. This gives our clients comfort to know that all the details in each phase have been meticulously gone over.

Each project has a sales component and Angel thrives on the knowledge and use of today’s technology, combined with Audio-Video and Smart Home Automation. Angel looks at a home and carves out a vision with the client, as there is an artistry to project design with each one is different. Yes, the equipment and products used may be the same but unique in the design and setup for each client.

Angel is very hands-on regarding each project for our clients, going on-site to review the progress or provide advice or any adjustments for the SDI team. Quite often this allows an opportunity for each client to provide information as the project progress, not just changes to be made but real-time feedback.

System Design and Integration has grown to now 10-plus team members with the help of Co-Founder Alexa. Angel has been able to focus on Business Development which has led to becoming a Premier Integrator. This has been recognized by Boston Magazine in the 2019 “Best of Boston” edition.

When is out of the office, Angel can be found spending time with his 2 daughters and chasing his toddler son around the house. Boating and traveling with the entire family provide great enjoyment as well.
headshot of woman, employee at system design and integration in boston

Alexa Centeno

Owner & President
In 2010 Alexa Co-Founded, along with her husband Angel, SDI. After a career as an accounting professional, Alexa was looking to branch out creatively. Yet this also meant handling all aspects of the emerging business while Angel was overseeing the installations in the field.

As the business began to grow Alexa expanded her creative side in Audio-Video Industry by Designing Systems, mixing Technology and Art with a touch of Audio. If that was not enough, Alexa’s passion for designing Lighting become more prominent as the vision presented to our clients became a reality.

As a project manager, Alexa is able to not only design systems but manage each project from start to finish. This allowed multiple builders and architects to recognize the talents that SDI-Boston could bring to either new or renovated residences, allying not only locally but nationally.

Over time Alexa has developed an amazing use of social media for SDI-Boston. One that our manufacturers have been raving about for years. Using these platforms Alexa’s creativity has shown how each project has a story and the finished product is presented with an artistic flair. Alexa is fully involved in business and is loving it, overseeing the processes and all aspects of the business and with staff now of over 10 team members.

Alexa is wearing fewer hats than in 2010, allowing for her to focus on Client Relations and Business Development. She was recognized recently by Boston Magazine for her achievements as a female co-owner in the Boston area.

When not in the office Alexa cherishes her time with her 2 daughters and toddler son, and of course her husband Angel. Alexa’s 82-year grandmother and chocolate lab bring joy after a day at the office. Alexa speaks fluent Russian and enjoys traveling, boating with her family as long as she is the captain, decorating her home, and asking Angel to hang picture frames around the house; these have been lifelong hobbies.
headshot of man, employee at SDI in boston

Frank Ferreira

Senior Programmer & Project Manager
Frank is a 16 year veteran of the Audio-Video Industry and transitioned to SDI Team in January 2020 with the merger with audioDave. Frank was instrumental in establishing a stellar reputation for System Design and Installation execution on top of his programming abilities which are nationally known in the industry.

Frank has managed residential and commercial projects nationally and internationally. This has been enhanced by his quality of work and knowledge with Savant Systems. Frank is not only one of the top Programmers in New England but is highly sought after coast to coast by clients and integrators for advice and solutions to many difficult scenarios. As his troubleshooting skills provide superior support when others cannot.

Frank has been involved with Savant’s advisory board for many years and is now part of the SDI role. Since the merger with audioDave Frank has, along with Angel and Alexa, brought the SDI-Team to another level in a little over a year's time. Project Design and Execution and bringing on key Team Members into the SDI-Culture has resulted in the ability of the company to expand its facilities in 2021.

One of Frank’s favorite skills and accomplishments is Rack Building from start to finish. The meticulous nature of the wiring coincides with his Programming mindset resulting in a finished product that brings an entire System together.

Yet it is his thirst for knowledge and monitoring all the Industry trends that really sets Frank apart and allows for the continued growth of the SDI-installation Team. One of his favorite parts of a tutorial with a client is Calibrating Home Theater Audio and letting the client sit back and enjoy a movie while he makes sure that the Calibration is 100% perfect.

When not in the Office Frank is a serious video game player with a custom chair and area in his house where he and his son have every amenity needed for hours of entertainment. When you see Frank just ask him his favorite movies and he will fill up your must-see films, no problem, and then some.
headshot of man, employee at SDI in boston

Tom Canals

Scheduling Coordinator
With a wealth of business and retail experience, Tom has been working in the Audio-Video Industry for 8 years and with SDI since January 2020. Propelled by an Athletic Scholarship Tom used his degree in Broadcast Journalism and Business to chart a long path with an entrepreneurial spirit, eventually owning a video store in Waltham for 7 Years in the 1980s and 1990s

The employment journey took Tom to a major big-box retailer for 16 years working at various levels of management. This included locations with 20 million-plus in sales per year. Along the way, he was cultivating talents and skills to be used and demonstrated, especially with the ability to develop and train fellow team members. This lead to placement and growth into management and supervisory and rewarding positions.

As the Scheduling Coordinator at SDI-Boston, Tom handles all the client project scheduling and any other scheduling for consultations, meetings, and events. With the various skills and knowledge over the entire business landscape, Tom is very much a Hybrid Team Member, meaning that there are many aspects of the business that can be shared among the SDI-Team. This allows the Staff to be able to use this when needed knowing that Tom can be counted on to handle and advise in a support role.

Tom has always had an intense desire to provide the best service to our clients: the customer is king with Tom. No stone goes unturned in support of all our clients as with his role with scheduling Tom becomes a point of contact for everyone.

When out of the office, Tom can be found watching spectator sports at home with his wife, playing golf with friends and relatives, and enjoying many a baseball game at Fenway Park.
headshot of man, employee at SDI in boston

Bernie Durgin

Lead Installer
Bernie is all about client satisfaction in his 6 years in the Audio-Video Industry. Bernie takes enormous pride in his work and in being able to capture the excitement when giving a tutorial for a client. The satisfaction of the finished Installation and watching the project manager and client's vision come together is very rewarding for Bernie and the Team.

Like other SDI-Team Members, Bernie is multi-faceted in skills from wiring to programming along with the ability to provide great detail on any given project. One of Bernie’s hobbies is his home system which of course leads to the creativity and experience of the handling of the variety of equipment and applications. That translates to being able to handle any service issues that our clients may encounter and provide solutions.

Bernie in his time with SDI has also taken on a leadership role with his team with a willingness to take on any role on a Project. This is an attribute that serves our clients well to know that Bernie can not only handle the Installation Phase but can also work hand in hand with other trades and project managers.

When not in the office, Bernie can be found listening to music, in particular his Vinyl collection, and spending time with his friends and his family while watching a variety of sports. If you need a Craft Beer recommendation Bernie is your guy, bar none. Bernie also enjoys his New York Sports Teams, especially while living in Massachusetts.


  • Savant Through and Through
  • Best of Boston 2019
  • Best of Boston 2022
  • Best of Boston Home 2022
  • Boston Magazine Award


  • Savant Platinum Dealer
  • Savant Ambassador
  • Bowers & Wilkins Diamond Dealer
  • Lutron Platinum Dealer

Industry Memberships

  • CEDIA Member
  • IFDA New England Chapter
  • Professional Remodeling Association of New England

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