Colorado Roofing Certification: A to Z Roofing has exceptional standing with the leading roofing manufacturers for both residential and commercial products as evidenced by our certifications.

Residential Roofing Certifications

Our residential accreditations include CertainTeed SELECT ShingleMaster, Duro-Last Certified Installer, GAF Master Elite Contractor, Malarkey Certified Residential Contractor, Mule-Hide Heat Weld and EPM Warranty Eligible Applicator, Owens Corning Preferred Contractor.

Commercial Roofing Certifications

We have Commercial Contractor Certifications from the leading commercial roofing brand manufacturers including CertainTeed, Duro-Last, GAF, Mule-Hide, and Owens Corning.

Call the professionals at A to Z today about your residential or commercial roofing project in Denver.


A to Z Roofing
Tel: 303-781-8185
Fax: 303-781-5875
Email Us
4251 S. Natches Ct. #K
Englewood, CO 80110


9am – 5pm Monday – Friday
Weekend and evening appointments available

A to Z Roofing’s Colorado Roofing Certification includes CertainTeed, Duro-Last, GAF, Malarkey, Mule-Hide, Owens Corning roofing contractor serving the Denver Colorado metro and Front Range areas including Arvada, Aurora, Boulder, Brighton, Broomfield, Centennial, Colorado Springs, Commerce City, Castle Rock, Castle Pines, Cherry Hills, Denver, Elizabeth, Englewood, Erie, Evergreen, Fort Collins, Glendale, Golden, Greeley, Greenwood Village, Highlands Ranch, Lakewood, Larkspur, Littleton, Lone Tree, Longmont, Louisville, Loveland, Morrison, Northglenn, Parker, Superior, Thornton, Westminster, Wheat Ridge, CO.