Who We Are at GAC Glass

Darren Christian

Managing Director

As Managing Director at GAC Glass, Darren brings extensive experience in business leadership, construction, and luxury residential development. A University of Illinois graduate with a BS in Economics, he began his career in corporate America, holding key roles at Hershey Chocolate USA before transitioning into high-end home building in downtown Chicago.

Since relocating to Florida in 2021, Darren has focused exclusively on impact glass solutions, becoming a leader in the commercial and luxury residential market. His blend of corporate expertise and hands-on construction experience ensures GAC Glass delivers superior quality, innovation, and customer satisfaction.

Alejandro Vargas

Managing Partner

As Managing Partner at GAC Glass, Alejandro brings extensive experience in the glass and glazing industry. With over 30 years in commercial and residential construction, he has overseen impact window, door, and curtain wall installations on projects ranging from luxury estates to large-scale developments. His career reflects a strong balance of technical expertise and business leadership.

Since joining GAC Glass, Alejandro has focused on driving innovation and maintaining the company’s reputation for precision and quality. His collaborative approach with architects, builders, and developers ensures every project is completed to the highest standards of safety, efficiency, and design.

Aline Frota

Commercial Account Executive

As Sales Representative at GAC Glass, Aline Frota brings a strong background in sales, entrepreneurship, and customer service. She began her professional journey in Rio de Janeiro, launching her first business at just 20 years old and developing a deep passion for personal growth and business development.

Fluent in English, Portuguese, and Spanish, Aline connects easily with a wide range of clients across commercial and luxury residential projects. Her focus on tailored solutions, relationship-building, and client success ensures every GAC Glass project is handled with professionalism, care, and a commitment to excellence.

Michele Kafer

Commercial Account Executive

Michele Kafer thrives on building genuine relationships and creating lasting connections across the industry. Fluent in Portuguese, Spanish, and Turkish, and having lived on three continents, she brings a global perspective to every client interaction, enhancing communication and cultural understanding.

Known for her easygoing nature and people-first mindset, Michele leads with transparency, integrity, and a commitment to tailored solutions. Her natural ability to connect professionals and guide clients through complex projects makes her an essential part of the GAC team.

Isabella Torres

Miami Sales Manager

As Miami Sales Manager at GAC Glass, Isabella brings more than 15 years of experience in sales and construction support across South Florida. Originally from San José, Costa Rica, she has worked on projects ranging from luxury homes to multi-unit developments, specializing in glazing systems that meet Miami-Dade requirements.

Based in Miami, Isabella partners with developers, contractors, and architects to align product selection with project specifications. Her knowledge of permitting and regional code standards ensures each installation moves forward smoothly and without delays.

Camila Rodríguez

Palm Beach Sales Manager

As Palm Beach Sales Manager at GAC Glass, Camila draws on more than a decade of experience in residential and commercial construction. Born in Ibagué, Colombia, she has supported projects throughout Palm Beach County, with a focus on impact windows, doors, and railings for luxury estates.

Camila works closely with builders to prepare accurate proposals, coordinate product sourcing, and maintain timelines. Her ability to navigate complex project requirements makes her a key point of contact for high-end construction across Palm Beach.

Valentina Cruz

Orlando Sales Manager

As Orlando Sales Manager at GAC Glass, Valentina brings over 12 years of experience in construction sales and project coordination. Originally from Mar del Plata, Argentina, she has supported mid-rise and residential projects across Central Florida, helping builders integrate custom glass systems into new developments.

Valentina collaborates with contractors and project managers to streamline product selection and installation scheduling. Her familiarity with the Orlando construction market allows her to anticipate challenges and keep projects progressing efficiently.

Diego Herrera

Tampa Sales Manager

As Tampa Sales Manager at GAC Glass, Diego has more than 12 years of experience in glazing and commercial construction. Born in Tampico, Mexico, he has worked on coastal projects that demand hurricane-rated glass systems, giving him extensive knowledge of Florida’s impact standards.

Diego’s role includes coordinating with developers, preparing bids, and overseeing delivery timelines. His technical background and on-site experience provide clients with clear solutions that keep projects compliant and on schedule.

Sofia Delgado

Office Manager

As Office Manager at GAC Impact Windows and Doors, Sofia brings years of experience in operations, administration, and team coordination. She plays a key role in streamlining office processes, managing client communications, and ensuring seamless workflow across departments.

With a strong background in organizational management, Sofia excels at optimizing efficiency, overseeing daily operations, and supporting both internal teams and customers. Based in Miami, she is known for her attention to detail, problem-solving skills, and commitment to delivering exceptional service that keeps the business running at peak performance.

Camila Restrepo

Commercial Estimator

As Commercial Estimator at GAC Impact Windows and Doors, Camila Restrepo supports bid preparation, material takeoffs, and pricing for large-scale residential and commercial projects. Based in Barranquilla, Colombia, she brings technical accuracy and efficiency to our South Florida operations.

With a background in architectural engineering, Camila collaborates with project managers and builders to deliver competitive, timely estimates. Known for her precision and responsiveness, she plays a key role in supporting luxury homebuilders and commercial developers.

Lucía Torres

Residential Estimator

Lucía supports GAC’s residential division with detailed, accurate estimates tailored to high-end glass projects. From impact windows to custom interiors, she ensures every proposal aligns with the client’s vision and budget.

With a background in architectural drafting and a sharp eye for detail, Lucía works closely with project managers and design teams to streamline planning and pricing. Her technical precision and clear communication help bring even the most complex residential projects to life.

Carlos Mendoza

Commercial Project Manager

As Commercial Project Manager at GAC Glass, Carlos brings over 20 years of experience in commercial construction and glazing. He has managed impact glass systems for hospitals, office towers, and mixed-use projects, overseeing schedules, permitting, and installation from start to finish.

Carlos works directly with builders and architects to keep projects compliant, inspected, and delivered on time. His straightforward approach and field experience make him a dependable lead on complex commercial jobs across Florida.