About Us

Dedicated Experts Building Success With Integrity

Our Team

Building Relationships.

Wayne DeCosta

President | CEO

Great West Start Date: August 2004

George Emery

Project Manager

Great West Start Date: January 2009

Bob Dudley

Senior Project Manager/ Estimator

Great West Start Date: March 2010

Jennifer Woods

Accounting Manager

Great West Start Date: February 2014

David Bigelow

Superintendent Assistant

Great West Start Date: September 2021

Richard Warner

Superintendent

Great West Start Date: May 2022

Harley Kilgore

Superintendent

Great West Start Date: May 2022

Mike Rittiger

Superintendent

Great West Start Date: September 2023

Ralph Knox

Superintendent

Great West Start Date: December 2023

Steve Mayotte

Project Manager

Great West Start Date: June 2024

About Us

Delivering with Integrity.

At Great West Construction, we believe that the foundation of every great project is a strong partnership built on trust, clarity, and mutual respect. Since 2004, we’ve worked alongside owners, architects, and engineers to deliver high-quality commercial spaces—on time, on budget, and with care.

From pre-construction planning to final handover, our experienced team prioritizes clear communication, expert craftsmanship, and a shared commitment to excellence. Whether we’re building for churches, senior living communities, or commercial developers, we approach every project as stewards—serving with integrity and delivering lasting value.

Core Principles

Driven by Purpose, Guided by Faith​

At Great West Construction, our vision, mission, and values define our purpose—honoring God, serving others, and building with unmatched excellence, integrity, and responsibility.

Our Mission

Why we do what we do

  • To honor God in all we do
  • To help people
  • To pursue excellence
  • To grow profitably
Our Vision

What we hope to become

Our vision is to become the best construction company in the United States by:

  • Recognizing that everything we have is a gift from God
  • Respecting everyone with whom we come into contact
  • Performing every part of our work with excellence
  • Conducting our business with complete integrity
  • Expanding our capabilities every day
  • Growing the company responsibly and profitably
  • Giving back to God and giving generously to others
Our Values

How we will conduct ourselves and our business

Integrity: We act with the highest ethical standards in everything we do

Leadership: We believe strong and effective leaders are vital for all levels of the company in setting high standards, coordinating our efforts, and modeling servant leadership – allowing us to work together to meet our goals

Teamwork: We emphasize teamwork, open and honest communication, and meeting our commitments to each other

Development: We provide opportunities and motivation for personal and professional development for every team member

Respect: We treat everyone with respect and demonstrate personal and professional courtesy in all our interactions

Achievement: We set high standards and ambitious goals as a company and as individuals, and we strive every day to achieve them

Quality: We are committed to the highest possible quality and excellence in our work and in serving our customers

Objectivity: We are objective when evaluating our choices and making decisions; we strive to eliminate any personal biases which may inappropriately influence us

Citizenship: We believe our company and each member of our team should act as a good citizen and community member

Safety: We place the safety of our team, our subcontractors, our project partners, and the public above expediency, efficiency, and profitability

Generosity: We give eagerly and joyfully to those who have needs we can meet through donations of our time, money and resources

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