Our Staff

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Walter Page
Agency Principal and Agent

Walter moved to Lakeland/Winter Haven area in 1985 to attend Southeastern University, where he got a BA in Christian Education. He enjoyed a 20 year career with UPS before deciding to go into the insurance industry.  His passion for teaching and serving others is apparent as he has taught a large adult class at his church for 18 years.  He is also involved in his church as a deacon, and is on the leadership team for the Wingman men’s ministry.  Walter has been a part of the Winter Haven Rotary club since 2006, serving on the board several times.  Walter is married with three adult children, and he loves to run and workout in his spare time.

Diane Costello

Diane was raised in South Florida and moved to Winter Haven in Spring 2000. She has a B.S. degree in Marketing from Florida State University and has worked in insurance since 2007.  After two years of working with her husband at his State Farm agency, she came on board with SIG Insurance at its inception in 2009.  Working here has given her the opportunity to grow and help a wide range of clients with their personal and commercial insurance needs.  She loves learning about their businesses and properly protecting them.  Diane is an avid FSU football fan and loves to travel with her family and friends.

Chantelle Williams
Account Manager

Chantelle was born and raised in New Hampshire and moved to Florida in 2008. She came to SIG in 2015 and has five years of experience in the insurance industry. Developing a personal relationship and uncovering each client’s unique needs is her favorite part about working at SIG. Chantelle enjoys reading, trips to the beach and spending time with her family at home in Lakeland.

Lauren Mueller
Account Manager

Lauren is a Florida native and grew up in Miami.  She came to SIG in January 2016 with a background in sales, marketing and customer service. Her favorite thing about working in the insurance industry is that no two situations are alike and she enjoys finding a solution for each unique situation as it presents itself.  Lauren lives in Lakeland with her family.

Jessica Johnson
Account Manager

Jessica is a seventh generation Floridian. Prior to entering the insurance workforce, she studied hospitality and tourism management at USF Sarasota campus while working as a restaurant manager and event planner. The opportunity to travel to promote and open health clubs was her next adventure.  Jessica has been with SIG Insurance since 2013.  Her favorite part of choosing insurance as her profession is being able to bring the customer service aspect of her past experiences and to provide knowledge to our clients so that they feel confident and properly protected.  Jessica loves to get involved in planning events and promoting local organizations and charities that better our community.

Kevin Thomas
Account Manager

Kevin started out as a client of SIG Insurance before he joined the agency in 2016. His extensive background in retail and hospitality provides our customers superior service, making him a great fit in the SIG family. He enjoys helping clients customize an insurance plan that meets the needs of them and their family.  Kevin is a second generation Floridian. He lives in Polk county and enjoys taking his daughter for rides in his scooter’s sidecar.