About Us
L3 Synergy is a veteran-owned, Wheaton-based handyman, painting, and energy-efficiency company.
We help homeowners create spaces that look better, feel warmer, and last longer—without the hassle. Led by owner Andrew Jeffrey, our team combines craftsmanship with building-science solutions like multi-layer insulation and premium coatings. Clients choose L3 for clear communication, clean job sites, and 5-star results. Built for comfort. Designed for life.
Meet Andrew Jeffrey,
Owner of L3 Synergy
Andrew is originally from a small town in Iowa. A son of a contractor, he learned the ins and outs of the industry at an early age. Doing a tour in the Navy on a Submarine, Andrew quickly realized the importance of attention to detail and doing the job right the first time.
Andrew and his wife Amanda live in Wheaton with their three kids: Lila, Logan, and Levi (that is where the business name “L3” came from!).