Meet The Team | Donnell Williams

Christina Mullins • September 10, 2025

Hi, September!

The leaves may not be changing colors like they are along the East Coast, but Fall is almost upon us. 


It has been an unusually slow Atlantic Hurricane Season, but that has not slowed us down one bit. With about six weeks left, our team remains ready—as always—to respond. 


Meet the Team: Donnell Williams

For September, I’d like to introduce you to Donnell Williams, a Reconstruction Project Manager at our Jackson Branch. 


Donnell was born and raised in Vicksburg, Mississippi. After graduating high school, he attended Jackson State University, where he earned a Bachelor of Science in Special Education (K-12) with a minor in Music Education


Life Outside of Work 

Donnell is a proud father of three—Abigail (5), Dawson (4), and Elijah (3)—and enjoys spending his free time with them. 


Music plays a big role in his life. He plays piano and organ at church and with a cover band. And as a loyal Jackson State alumnus, you’ll often find him in the stands on a football game day, cheering for the Tigers. 


He’s also a fan of the Tennessee Titans


Career Journey

Before joining GRS in November 2024, Donnell worked for the City of Jackson in the Department of Planning. His background in public service and education has given him a unique perspective on leadership and teamwork. 



Donnell’s Advice 

When asked what advice he would share, Donnell offered two perspectives: 


  • For company leaders: “Keep up the great work, your leadership sets the tone for success.” 
  • For employees: “Show up consistently and follow through on your commitments. Growth happens often at GRS, so stay prepared; it’s better to be ready than to have to get ready.” 


Why He Loves Working at GRS 

“What I like most about working at GRS,” Donnell shared, “is the opportunities for internal promotion, hands-on training, and the company-wide focus on detail and logistics.


Join Our GRS Family!

Our company has two locations in Mississippi—in Jackson and Gulfport. We also have three Louisiana branches in Lafayette, Baton Rouge, and New Orleans, plus our newest location in Mobile, Alabama, which opened in August 2023. 


If you or someone you know is ready for a new career, visit our website to explore our full list of available jobs. 

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FOR IMMEDIATE RELEASE Contact Information: Zack Klein Director of Marketing and Business Development 225-753-8682 Zack@247GRS.com Guarantee Restoration Services Launches National Sales Team to Expand Strategic Partnerships Across the Country BATON ROUGE, La. – June 16, 2026 – Guarantee Restoration Services (GRS), a leading full-service restoration contractor serving the Gulf Coast since 1974, is proud to announce the implementation of its new National Sales Team. This strategic initiative marks an exciting step forward in the company’s continued growth and commitment to serving clients and partners on a broader scale. The newly established team will be led by Barrett Dick, Director of National Sales, alongside Zack Klein, Director of Business Development and Marketing. Together, they have played a pivotal role in growing GRS relationships across multiple industries throughout the Gulf Coast and beyond for over a decade. The team also includes newly hired account executives, David Stern and Chad Catalano. “Over the years, we have seen our partnerships and opportunities continue to grow beyond our traditional footprint,” said Zack Klein, Director of Business Development and Marketing at Guarantee Restoration Services. “Creating a dedicated National Sales Team allows us to strengthen those relationships, support our partners on a larger scale, and continue expanding the reach of the GRS brand, while staying true to the service and responsiveness we are known for.” Dick, who will celebrate 10 years with GRS next month, brings extensive industry knowledge and leadership experience to the role. He holds multiple Institute of Inspection Cleaning and Restoration Certification (IICRC) credentials, including Water Damage Restoration Technician (WRT), Applied Structural Drying (ASD), Applied Microbial Remediation Technician (AMRT), and Fire & Smoke Damage Restoration Technician (FSRT). After graduating from Louisiana State University, Barrett began his professional career with Marucci Sports before joining Guarantee Restoration Services in July 2016. Just weeks into his time with the company, the historic Great Flood of 2016 impacted Southeastern Louisiana, providing him with firsthand experience managing large-scale losses and coordinating restoration efforts for major school districts and commercial clients. Since then, he has helped cultivate business development efforts throughout Louisiana and nationally, working closely with partners in hospitality, education, government, healthcare, and other commercial sectors. “Our focus has always been relationship-driven,” said Dick. “We want our clients and partners to know they have a team they can rely on before, during, and after a disaster. This National Sales Team is another way we are investing in those relationships and positioning Guarantee to better serve organizations wherever they need us.” As part of the expansion, GRS hired David Stern as a National Sales Account Executive. Stern brings more than a decade of high-level sales and relationship management experience from the professional sports industry. Prior to joining our team, he served with the New Orleans Saints and Pelicans organization, where he consistently ranked among the organization’s top sales representatives and generated more than $38 million in multiyear contracts throughout his career. “David’s experience of building relationships, managing high-profile partnerships, and delivering exceptional client service makes him a tremendous addition to our team,” added Klein. “His background and skillset align perfectly with the direction we are heading as a company.” The National Sales Team also includes Chad Catalano, who joined Guarantee Restoration Services in January 2026. Catalano brings nearly two decades of restoration industry experience, with a strong background in sales leadership, project coordination, and relationship development throughout the Southeast and Gulf South regions. Prior to joining GRS, Catalano served as National Sales Manager for ServiceMaster DSI and spent more than 16 years with US Restoration as a Sales and Project Coordinator. Throughout his career, he has built long-standing partnerships while helping clients navigate complex restoration and recovery projects. In addition to his restoration industry experience, Catalano also spent several years as a successful high school baseball coach in the New Orleans area, earning multiple district championships and Coach of the Year honors. His leadership, communication skills, and client-focused approach make him a valuable addition to the growing national team. Guarantee Restoration Services continues to serve clients across Louisiana, Mississippi, and Alabama with six locations in Baton Rouge, Lafayette, and New Orleans, Louisiana; Gulfport and Jackson, Mississippi; and Mobile, Alabama. With the implementation of its National Sales Team, GRS is further expanding its ability to support partners across the country through large-loss response, catastrophe recovery, and national account relationships. The company specializes in water, fire, mold, storm, and biohazard restoration, as well as reconstruction and pre-loss planning services. For more information about Guarantee Restoration Services, visit www.GuaranteeRestoration.com or call 1-800-349-HELP (4357).
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