Being Haag-certified simply refers to a roofing contractor that can inspect and assess damage both efficiently and effectively. Are there really advantages to working with a Haag-certified contractor, though?


In this post, commercial roofing company Billings Construction Group gives you the answers.

Haag Certification

First off, let’s define what constitutes a Haag certification. Haag, a forensic engineering and consulting firm, provides roofing contractors with an intensive, three-day training program by existing Haag-certified engineers. Pass the training and you get the certification.

The Benefits

For one, those with the Haag certification know how to assess damage to all major kinds of commercial roofing systems. Companies have the edge on their competition because their inspectors are knowledgeable of weather characteristics, codes and industry standards, roof area calculations and inspection safety.

When working with Haag-certified roofing companies, you can be assured that the expertise to diagnose your roof is there. In addition, Haag-certified experts also cover types of wind and related effects to accurately inspect and assess damage after extreme weather conditions. Also, Haag-certified specialists use science-based procedures to assess roof damage, which is an added benefit that would give companies an upper hand on the competition.

Our Team

Haag certifications are only awarded to companies that provide complete services, like Billings Construction Group. We’ll be here to fix your roof should anything go wrong with it, guaranteed. Billings Construction Group is also a GAF factory-certified Master Elite® roofing contractor with years of industry experience.

Billings Construction Group is your ally in roofing, whether it be regular roofing maintenance or storm damage repair. Call us now at (918) 600-9565 to learn more about our services and to book a free inspection. We serve clients in Tulsa, OK.

OUR Happy Clients 

"Chris Billings is a top notch business man in the service industry. And even more important is that he is a honest, caring and trustworthy individual that puts his heart and soul into his work. You will be completely satisfied with his crew and their performance. Highly recommended!"

Adam Holzworth

"Great shout out to all the team....Jeremy is such a blessing. He took such great care of us during Moms construction! "

Kari Hixon Ryburn

"Chris Billings and Billings construction are absolutely the best in the business. Not only have I seen this personally but with many of my clients and friends who have used them. If you’re thinking about anything Contruction or Roofing you absolutely have to give these guys a call."

Gary Ogg



11911 S Oxford Avenue, Suite 400

Tulsa, OK 74137


OK License 80002880

Commercially Endorsed