CONTACT PHONE (303) 435-7708

Mon - Sat 8:00 - 5:00


Denver, CO

About A1

A1 Certified was founded in 2000 on the principles of quality, integrity, and trust.

Since 2000, our roofing company has provided roofing services to residential and commercial customers along the Colorado Front Range. Our 25 years of experience and expertise in re-roofing and roof repairs has earned us a reputation as one of Colorado’s leading roofing contractors.

Because of our standards and commitment to quality, we consistently deliver a high quality roofing system and customer service to homeowners and business in Colorado.

Superb Customer Service

  • Quality
  • Promptness
  • Dependability
  • Professionalism
  • Reasonable Cost
  • Customer Service

When you need roofing work done and are looking for a reputable Colorado roofing company, remember that all roofing companies are not alike. A new roof is a major investment for your home or business. A1′s Denver roofers are highly rated, and we are a Colorado roofing company you know is going to provide quality work at an affordable price.

Schedule Free Inspection & Estimate

One of the most important decisions that a homeowner will make regarding their residence is replacing or repairing the roof of their home, and choosing the right roofing company Denver. Making the proper choice about a Denver roofing company is a major determinant in the success of your roofing project and the ultimate finished roofing installation or repair. Selecting A1 Certified will be the first major and correct step in making certain you have the right roofing materials and expertise for the job.

  • Over 25 years experience servicing the Colorado Front Range.
  • Lifetime Workmanship Warranty in addition to Manufacturer’s Warranty.
  • Assist in handling insurance claims that need to be filed.
  • Fully Licensed and Insured, compliance in all Cities and Counties.
  • Hail damage roofing experts
  • Free estimates.
  • References available
  • Last but not least…great customer service!

Active Members of many professional organizations

As a proud Denver roofing company, we provide the homeowner or business owner with the following benefits:

  • Properly licensed.
  • Dedicated to high-quality work.
  • Customer service oriented.
  • Ethical business philosophy.
  • Established, proven and reliable.
  • Technically proficient and competent.
  • Stand behind our work with guarantees.
  • Committed to the roofing industry.
  • Insured and committed to safety.
  • Trained, experienced, and courteous staff.