Waterproofing Sales Estimator Alpha Insulation & Water Proofing, Inc.Waterproofing Sales EstimatorLewisville, TXPart timeFollows up on bids by contacting customers by phone, email, or personal visits to determine the competitiveness of the bid, analyze possible scope differences with competition to determine customers’ needs regarding. Anticipate jobsite working conditions such as working heights and difficulty of material installation, and review take-offs and pricing worksheets with the estimation team as required.