John Zwierzynski holds a Bachelor of Science degree in Construction Management from Bradley University and has over 25 years of commercial construction experience. He joined Builders Sales & Service Company in 1999 as a project Project Estimator, and he is currently the company’s vice president. His responsibilities include planning take-offs, writing proposals, proofreading contract documents, attending pre-bid and post contract job meetings, management managing of subcontractors, negotiationing with suppliers & owners, and finalization finalizing of project documentation through the substantial completion.