I requested Mr. Resendiz to lay a reinforced concrete slab and build a strong building on top of it so I can have a gym in my back yard. Overall I am extremely satisfied with his work. After calling numerous companies to obtain quotes, Mr. Resendiz beat all of them by a significant margin and exceeded the quality I was looking for. I ultimately was looking for a heavy duty slab that could withstand abuse such as powerlifting and a "meat and potatoes" structure on top of it. From the ground up, everything they did was aweome. With the slab, they reinforced it with re bar for added strength. With the "shed", they used treated wood for the base to stand up to any possible moisture as well as installed diagonal braces to all the walls for extra rigidity. I have added pictures below which hopefully show his good work. I look forward to using them again!