GAF reviews

3.1

52% would recommend to a friend

(561 total reviews)
avatar

John Altmeyer

37% approve of CEO

40% positive business outlook

GAF has an employee rating of 3.1 out of 5 stars, based on 561 company reviews on Glassdoor which indicates that most employees have a good working experience there. The GAF employee rating is in line with the average (within 1 standard deviation) for employers within the Manufacturing industry (3.5 stars).

Reviews by job title

561 reviews
3.0
Nov 3, 2009

Good Experience for Internship but...

Anonymous employee
Recommend
CEO approval
Business Outlook

Pros

they let you make mistakes and grow as an intern and they support good ideas regardless of who they come from

Cons

you have to be a certain gender and race to go far in the company

2.0
May 7, 2026
Recommend
CEO approval
Business Outlook

Pros

Decent opportunity to get your feet wet and start a corporate career, industry leader, etc.

Cons

Management is not helpful for your own improvement and learning, a lot of CYA tactics being put on lower level employees, turning into a toxic work environment

Viewing 127 - 129 of 561 Reviews

Glassdoor has 659 GAF reviews submitted anonymously by GAF employees. Read employee reviews and ratings on Glassdoor to decide if GAF is right for you.