4 Diamond Construction, Inc.
“I have known and worked with Mario and his staff for a few years and find their honesty, integrity, professionalism and craftsmanship to be of the highest quality. In 2019, I hired 4 Diamond Construction (4DC) as the general contractor for a shopping center remodel project in Concord - a project that I managed for my firm which owned the center. The project was a bit tricky as it had to be performed while keeping the tenants open and happy but in the end, the finished product was spectacular with everyone involved being very happy with the results including the tenants, the design team and my senior management. 4DC's attention to detail and their pro-active management style made my job much easier and inspired confidence to hire them again which I did in 2020 to manage an even larger shopping center remodel project in Manteca. The Manteca project was complex in that it included not only a facade remodel but also a structural retrofit to address systemic issues with the original design. Construction was planned and performed while keeping the tenants open and happy, some of which are large national chains which can be very strict with regard to obstructions to customer access. This particular project also required extensive coordination with the design team to address existing conditions and design issues that arose during construction. Again, the finished product exceeded our expectations and all parties involved were happy and proud of the results. I would not hesitate to hire 4DC again for any project, large or small, and would trust Mario and his team to manage any type of construction for me in the future. You would be well served to hire 4DC for your construction needs.”
