Certifications & Credentials

Great Oak Roofing is proud to be fully licensed, insured, and recognized by leading industry organizations. Our team is committed to ongoing training and upholding the highest standards in roofing craftsmanship and safety.

GAF Certified Contractor

Certified to install GAF roofing systems with the highest standards of quality and workmanship.

CertainTeed ShingleMaster

Expert in CertainTeed roofing products and installation techniques.

Authorized ProVia Installer

Certified to install ProVia doors and windows with precision and care.

Marvin Windows Certified

Trained and certified in Marvin Windows installation and service.

Bulldog Gutters Certified

Expert in Bulldog Gutter systems installation and maintenance.

James Hardie Product Installation Certified

Certified to install James Hardie siding products with professional expertise.

We maintain strong partnerships with top manufacturers and invest in ongoing training to ensure our team delivers the best results for your home.