About Us


Established in 2008, Ace General Contractors, LLC is a family owned and operated business. Ace General is dually licensed and specializes in commercial tenant improvements. The owners, John and Shannon Juncker, decided to start their own company after several years of working in the construction industry. Both native to Arizona, John and Shannon have over 50 years of combined construction experience between them.


John is a Veteran of the US Army and spent time stationed in Germany. After being honorably discharged he worked his way through several construction trades including concrete, masonry, excavating, operating heavy equipment, framing, drywall, doors and trim. He gained management experience running large crews as a trades foreman and superintendent. He eventually moved on to working for large general contracting companies gaining additional experience as a Project Superintendent, Project Manager and Estimator.


Shannon began working for her family's construction company at a young age. Shannon's grandfather, Rodney Lee, started Ace Plastering, Inc. back in the 1940's before the Arizona Registrar of Contractors was in existence. The company was eventually passed down to Shannon's parents who also started Ace Builders, Inc. The namesake has been passed down through three generations and Ace General Contractors, LLC is the result. Shannon went on to work for several large contractors performing bookkeeping, scheduling, quality assurance, human resource, payroll, marketing, contract administration, executive assistant and office management duties.

Family Owned
& Operated