GAF Reviews

3.1

52% would recommend to a friend

(561 total reviews)
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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
1.0
9 Jun 2026
Recommend
CEO approval
Business outlook

Pros

Cafeteria food is decent and the building is nice

Cons

This place has really gone in the gutter over the years, hard to see how it will turn around. If you’re thinking about joining, the industry is Good but I’d stay far far away from GAF

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GAF Response
1w
Thank you for taking the time to provide feedback. I am glad to hear you enjoy the building and our cafeteria amenities. I am sorry to hear about your negative experience regarding the direction of the company and leadership. Please note that we are continuously working toward improving our working environments and fostering a positive and supportive leadership culture within the organization. Your feedback is valued and will help us identify areas of improvement.
1.0
4 Jun 2026

Terrible

Anonymous employee
Recommend
CEO approval
Business outlook

Pros

Great if you are management, probably

Cons

Terrible leadership at plant Terrible pay Lack of upward mobility

1.0
28 May 2026
Recommend
CEO approval
Business outlook

Pros

Nice corporate building with good cafeteria

Cons

Too many to list, too large to function, constant turnover, leaders been there decades and refuse to change

Viewing 1 - 3 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.