Core values

At Graboyes, we entrust our employees with the responsibility of always doing what’s right. Our core values guide our approach and actions: 

Simply stated, our most important asset is our people. As a team we celebrate each other’s talents and achievements, and we are grateful for the many clients and partners who place their confidence in us. Our goal is to deliver — every single day — on our promise of excellence.

Meet our office staff

Ellis Guiles, P.E., LEED AP
Owner / President

Laura Duran Guiles
Corporate Director / VP of Communications

Robert Gushue
VP of Finance

Bill Steedle
VP OF PRECONSTRUCTION SERVICES

Greg Laska
Director of Operations

Les Schlemback
Manager of Preconstruction Services

Chris DelRossi
Procurement Specialist

Gail Bilotta
Assistant Controller

LOU FILIPPONE
DIRECTOR OF BUSINESS DEVELOPMENT

project manager glazing systems

Joe Mignone
Project Manager


Andrew Balas
Estimator