GAF reviews

3.2

56% would recommend to a friend

(561 total reviews)
avatar

John Altmeyer

40% approve of CEO

43% positive business outlook

GAF has an employee rating of 3.2 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
Dec 15, 2025

Toxic Culture at GAF

Anonymous employee
Recommend
CEO approval
Business Outlook

Pros

There are no real perks here: not in career growth, not in leadership, nor in work culture. If you want to damage your mental health, hurt your career, and waste years of your potential, then by all means, join this company.

Cons

This is THE most poisonous environment I've encountered in my life. Micromanagement and pathetic higher leadership teams. Lots of people doing the bare minimum and being rewarded for it.

5.0
Nov 26, 2025

Good

Anonymous employee
Recommend
CEO approval
Business Outlook

Pros

It’s a solid place to work.

Cons

It’s an ever changing competitive landscape. But what isn’t?

Viewing 28 - 30 of 561 Reviews

Glassdoor has 658 GAF reviews submitted anonymously by GAF employees. Read employee reviews and ratings on Glassdoor to decide if GAF is right for you.