Industry Leader in Multifamily Renovations One Call Construction Services, LLC, has repositioned TENS of thousands of apartment homes, supporting some of the industry’s largest building owners, property management companies and investors. Our GOAL is to support our partners by increasing their ROI through value-add renovations, making sure each project runs ON TIME and ON BUDGET. At OCC our work is performed in-house from start to finish, making us your single point of contact on the job.