top of page
1583 Riverstone Elementary School Madera 5.jpeg

ABOUT US

Graham Prewett, Inc. continues to grow and is one of the largest commercial, industrial and public works companies to provide this scope of work in the Central Valley. GPI's vision for the future is to continue building a team that combines the enthusiasm and education of new employees with the seasoned experience of the veterans of our staff, and to work together to carry on the fine tradition of Graham Prewett, Inc.

​

Graham Prewett, Inc. is signatory to the Carpenters and Roofers unions and holds the following licenses from the California Contractors State License Board:

 

A General Engineering Contractor 

B General Building Contractor 

C22 Asbestos Abatement Contractor

C33 Painting & Decorating Contractor

C39 Roofing Contractor 

C43 Sheet Metal Contractor

UC Merced 3K - 3M  4.jpeg

CERTIFIED PARTNERS

We are proud certified or experienced installers for the following manufacturers:

output-onlinepngtools (13).png
download__5_-removebg-preview (2).png
download__20_-removebg-preview.png
download__21_-removebg-preview.png
download__23_-removebg-preview.png
download__24_-removebg-preview.png
download__25_-removebg-preview.png
download__26_-removebg-preview.png
download (27).png
download__8_-removebg-preview.png
download__28_-removebg-preview.png
download__4_-removebg-preview.png
download__29_-removebg-preview.png
download (30).png
download__9_-removebg-preview.png
download (31).png
download (6).jpeg
output-onlinepngtools (6).png
download__33_-removebg-preview.png
download (34).png
download__7_-removebg-preview (1).png
bottom of page