Proper procedures, professionalism and attention to quality control and safety are all qualities commercial general contractors look for when choosing subcontractors. The author, a full-time commercial construction estimator and project manager for a Midwest general contractor, offers tips on how concrete subcontractors can become more competitive when low bids and a good reputation don't attract enough work. He explains how to make your presence known, increase your chances of getting jobs, and prepare a professional written proposal.