Estimating We provide a personalized estimating service custom tailored to meet your needs. We provide a full material and labor breakdown of each job plus a proposal on your letterhead that is ready to be submitted to the GC. Sample Roofing ProposalReady to be submitted as is to the GC you are working with. Sample Bid BreakdownCustomized with your preferred labor rates, profit margin, material costs etc. to ensure a competitive bid in the market your company operates in.