Expert Concrete Contractor in Phoenix, AZ | Driveways, Patios & Foundations If you're searching for a reliable concrete contractor in Phoenix, AZ , you need a team that understands the desert climate, soil conditions, and city requirements. At 1C3:9 Construction LLC , we specialize in high-quality residential and commercial concrete services built to last in Arizona’s extreme heat. From concrete driveways  and patio extensions  to foundations and structural slabs , we deliver