Estimation Team
B&I has built a team of 17 in-house engineers who identify and quantify cost factors on each and every job. These professionals have the skills, experience and training that is needed for all design aspects. With a comprehensive focus on a wide variety of institutional type projects, our engineering team provides insight and practical knowledge regarding the functionality of various types of systems, their application effectiveness, and cost value.

Jason Grabowski, BSME
Executive Vice President/COO
Design Build & Systems Engineering
Business Development Manager

Brian Mumme, PE, LEED® AP BD+C
Building Solutions Department Manager

Jerzy Mamprejew
Plumbing Department Manager

Kathleen Simpson
Senior HVAC System Sales Engineer

William Boga
Design Engineer

Lea Valdez
Pre-Construction Coordinator

Dan Plein
Senior Plumbing Estimator

Robert Goshorn
Plumbing Estimator

Jordan Zorbas
Plumbing Estimator

Chad Fikes
Design Build Engineer

Dan Squire
Senior Electrical Estimator

Doug Grossi
Electrical Estimator