GAF reviews

3.1

54% would recommend to a friend

(561 total reviews)
avatar

John Altmeyer

38% approve of CEO

41% 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
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.

1.0
Jun 2, 2025
Recommend
CEO approval
Business Outlook

Pros

Getting a pay check and leaving for the day

Cons

GAF is one of the most toxic work environments I’ve encountered. Management is controlling, dishonest, and fosters a culture built on fear and surveillance. Mandatory on-camera meetings are just one example of their obsessive need to monitor employees. If you have any respect for your time, talent, or mental health, stay far away. This company will drain you and give nothing of value in return.

avatar
GAF Response
9mo
Thank you for sharing your perspective. We are sorry to hear that your experience at GAF has been so negative, as this is not the environment we strive to create. We take your feedback on our company culture, management, and work environment very seriously. We are committed to fostering a supportive and respectful workplace, and we will be reviewing your comments with leadership to address these critical issues. Feel free to email us at gaf.hrparsippany@gaf.com if you have anything else you'd like to share.
2.0
Mar 26, 2025

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Recommend
CEO approval
Business Outlook

Pros

One two three four five

Cons

One two three four five six

Viewing 58 - 60 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.