Category - Certifications

Andersen Windows and Doors Dealer

Andersen Windows Dealer and Window Replacement Contractor

Andersen Windows & Doors is very selective about its authorized dealers. Opal spent many years proving itself as top window contractors to finally earn the title of an Andersen Dealer. This means we work directly with Andersen to offer you the best prices, installation techniques, and selection of Andersen windows & doors! Our window replacement crews are Andersen factory trained! Check out […] Read More

Vinyl Siding Institute Certified Installer

The Vinyl Siding Institute is a trade organization for vinyl siding manufacturers and contractors. Their goal is to promote high quality standards for both siding products and installation. They maintain a prestigious certification program for vinyl siding products and installers. Opal Enterprises has completed VSI training programs and testing to have obtained the certification as a vinyl […] Read More