President & CEO, WMGB Home Improvement
We've built this business on doing a good and thorough job — and 40 years later, that philosophy still drives every project we take on.
Power100's evaluation of Greg Cowan's depth of expertise across the disciplines that define elite leadership in home improvement. Scored 1–10 based on verified performance, track record, and peer recognition.
#14 Power100 Ranked CEO in the Nation
40+ Years Serving Western Michigan Homeowners
Featured on Advancements with Ted Danson (Bloomberg TV)
Pioneer in Glass Block & Energy-Efficient Home Solutions
BBB Accredited with Strong Customer Reputation
Full-Service Provider: Windows, Doors, Insulation, Siding
Built a Loyal Team of 30+ Home Improvement Professionals
Greg Cowan contributes to the Power100 platform as a voice of small business resilience, hands-on craftsmanship, and customer-first leadership in the home improvement space. With over four decades of experience building WMGB from a niche glass block installer into a comprehensive home improvement company, Greg offers practical insights on sustainable business growth, energy-efficient building solutions, and the art of maintaining a strong local reputation in a market increasingly dominated by national brands.

Greg Cowan contributes to Power100's growing network of verified home improvement leaders. Read their insights, watch their interviews, and follow their work.