HOME ABOUT US PROJECTS CAREERS CONTACT EMPLOYEES ABOUT US About G.J. Gentry General Engineering Inc. G.J. Gentry General Engineering Inc was founded in 2010 by Garrett John Gentry as a grading, concrete, and pipeline contracting company. Garrett came from a family run construction business, but had greater aspirations of starting a company that was all about the employee environment and their families. Garrett also wanted to provide a turnkey solution for his valued clients. His clients were having to use multiple sub-contractors slowing down project productivity, therefore creating one company that can complete the project from start to finish is what G.J. Gentry General Engineering Inc. provides. He is determined to be the best and was tired of the subpar mentality that he had experienced in the industry. The term “Being the best” doesn’t stop at the job site. Garrett believes that every employee should be treated like family. When employees know that they are cared for and their contributions matter, they go above and beyond to provide a helping hand. He was tired of seeing companies that were focused on upper management strategies instead of the men and women that dedicate their lives to their company to support their families. Providing jobs and opportunity for generations to come is the foundation that G.J. Gentry General Engineering Inc. is built on. Great customer service, human resources, safety, and competitive pricing are the strategies GJ Gentry General Engineering Inc. uses to continue to grow and retain business. With a customer retention rate of 100%, many customers have been with them since the businesses inception. G.J. Gentry General Engineering Inc. always puts safety first. They believe that their employees are our most valuable asset so the safety of their workforce is critically important. The tradition of safety doesn't stop there however, it also extends to our customers and the communities where we operate. G.J. Gentry is committed to safety, with a dedicated safety department that oversees every aspect of our work. Their number one goal is to ensure all employees go home to their family’s everyday injury free. Servicing all of California and Arizona, there is no job too big that G.J. Gentry General Engineering Inc. can’t handle. They have equipment for every environment and every application. With over 300 pieces of equipment at our disposal, you can be assured that G.J. Gentry General Engineering Inc. has the right tools for your project. Today, G.J. Gentry General Engineering Inc. is most proud of its people and the 135 families it supports. Its early roots began with paving small patios and driveways and evolved into a $35 million in annual revenue company with the same people who are dedicated to getting the job done more efficiently. G.J. Gentry General Engineering Inc is also proud to give back to the local Upland community. It has been an amazing journey for G.J. Gentry General Engineering Inc. and its many employees over the years, and as they look toward the future, they believe that they have been “Blessed to be a blessing.” LEADERSHIP G.J. Gentry General Engineering, Inc. is proud of the leadership team it has assembled. We view our employees as our most valuable asset and believe it starts from the top down. Garrett Gentry President David Niederhauser Project Manager Grading Tammy Brassard Project Administrator Carina Chirino Human Resource Manager Bryan Copping Vice President & Project Manager Pipeline Allyson Fredericksen Controller Samantha Maurer Payroll Administrator Cindy Mendez Purchase Order Manager Jim Zheng Project Manager Concrete Jessica Cloward AP Specialist Shaun Miller Senior Estimator- Grading & Pipeline Reese Waldron Operations/Safety Manager Berenice Diaz AP Administrator SAFETY G.J. Gentry General Engineering, Inc. Plays It Safe. G.J. Gentry General Engineering Inc. always puts safety first, it is one of our founding principles. We believe that our employees are our most valuable asset so the safety of our workforce is critically important. Our tradition of safety doesn't stop there however, it also extends to our customers and the communities where we operate. G.J. Gentry is committed to safety, with a dedicated safety department that oversees every aspect of our work. Our number one goal is to ensure all employees go home to their families everyday injury free. OSHA Regulations CPR First aid Heat safety Illness safety excavation safety All Foreman Require OSHA 30 Classes SERVICES Grading Mass Excavation Rough Grading Fine Grading Finish Grading Demo Concrete Paving Asphalt Paving Curb & Gutter Heavy Duty PCC Paving Heavy Duty Color Paving Base Concrete Structural concrete Pipeline Underground Storm Sewer & Water Lines Channels Canals Heavy Civil Work Public Works General Contractor FEATURED POSTS CONNECT WITH US BEST EMPLOYEES IN THE INDUSTRY G.J. Gentry General Engineering Inc. is most proud of the people it employs. READ MORE G.J. Gentry General Engineering Inc 1297 W. 9th Street Upland, CA 91786 Phone: 909.693.3391 Mon. - 7am - 4pm Tues. - 7am - 4pm Wed. - 7am - 4pm Thurs. - 7am - 4 pm Fri. - 7am - 4pm Sat. - CLOSED Sun. - CLOSED CONNECT WITH US Execute your project on time and with exceptional quality. OUR LOCATION OVER 100 YEARS EXPERIENCE OUR SERVICES - Pipeline - Concrete - Grading 1297 W. 9th Street Upland, CA 91789 Phone: 909.693.3391 BUSINESS HOURS Mon. - 7am - 4pm Tues. - 7am - 4pm Wed. - 7am - 4pm Thurs. - 7am - 4 pm Fri. - 7am - 4pm Sat. - CLOSED Sun. - CLOSED pipeline contractor southern California, general contractor southern California, grading southern California, concrete contractor, concrete southern California © 2021 by G.J. Gentry General Engineering Inc.