About SSI Services

Humble Beginnings

SSI Services began with a simple truth: great service starts with great people. In 1993, founder John Seppy launched his career in operations management with McDonald’s, where he mastered the art of training, systems building, and team leadership. After a decade of hands-on experience, he shifted focus to the commercial mechanical trades, diving deep into HVAC, refrigeration, and kitchen equipment repair.

Built on Skill. Fueled by Family

For the next eight years, John sharpened his technical skills in commercial appliance and HVAC services, combining them with the operational rigor he brought from the corporate world. In 2006, John, his wife Lisa, and their son Thomas relocated to Florida and launched what would become SSI Services—originally named Jolito Inc., a blend of their three names.

What started as Sepco Air grew into Sepco Services, and eventually became SSI Services, a company known for delivering fast, professional, and dependable commercial equipment service across Central and North Florida.

What We Do

Today, SSI Services is a fully licensed Mechanical Contracting Company, specializing in:

• Commercial HVAC installation, service, and repair
• Refrigeration equipment maintenance and emergency support
• Hot-side kitchen equipment service
• Preventative maintenance programs tailored for restaurants, schools, and commercial kitchens
• Emergency response available 24/7
• All work performed by CFESA-certified technicians

Our clients include leading restaurants, hospitality venues, school districts, and foodservice operations that rely on high-performance equipment—and a partner they can count on.

A Team That Powers It All

At SSI, our people are our difference. We don’t just hire staff—we build a team that feels like family. We believe the best service starts from within: motivated, trained, and supported technicians who take pride in doing the job right the first time.

Founder John Seppy puts it simply:

“We want our team excited to come to work every day—and to build a career here, not just punch a clock.”

Team Drives Success, Not Just Staff

At SSI, we see our employees as an extension of our family. This ethos fuels our commitment to creating a work environment that is not only professional but also engaging and fulfilling. "We want you to be excited to come to work every day and never think of leaving—not just for the day, but ever," says John Seppy.
Happy Employees, Mutual Excellence.

Why SSI?

With over 35 years of combined experience, SSI Services brings unmatched expertise, rapid response, and a deep commitment to keeping your equipment running at peak efficiency. Whether it’s a walk-in cooler down in Tampa, a griddle install in Ormond, or a multi-site HVAC maintenance plan in Sanford, we’ve got your back.