Why choose us for your commercial plumbing estimating needs? Our Estimating Skills Have Been Fine Tuned Through Years Of Experience To Be Fast, Accurate, And Thorough. The APEC Services Team Uses Only The Latest Estimating Software And Industry Techniques. We Have Real-World, Hands-On Experience In The Plumbing Industry, As We Used To Be Plumbing Contractors Ourselves. Our Depth Of Knowledge Helps Us Provide You With An Accurate Estimate For Your Project.