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
2.0
Jun 20, 2025
Recommend
CEO approval
Business Outlook

Pros

-I liked working with most of my peers -There was great collaboration... in the beginning -Great soft skills development for working with difficult clients

Cons

-Lack of cross training or professional development - added responsibility without compensation changes -Lack of loyalty

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GAF Response
9mo
Thank you for sharing your feedback. We take your concerns about professional development, compensation, and loyalty seriously. We understand the importance of providing clear career paths and proper compensation for increased responsibilities. Your advice regarding setting clear expectations with end users is also valuable. We will be using this feedback to improve how we manage projects and support our team members.
1.0
May 14, 2025
Recommend
CEO approval
Business Outlook

Pros

Nothing is good about here

Cons

Everything possible that is wrong could be wrong

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GAF Response
9mo
Thank you for sharing your feedback. We are sorry to hear that your experience with our company has been so negative. We take your comments seriously and will review them as part of our ongoing efforts to improve our workplace. We welcome you to email us at gaf.hrparsippany@gaf.com if you have anything else you'd like to share.
1.0
May 8, 2025
Recommend
CEO approval
Business Outlook

Pros

- Good pay - 4 days off (If you don't get screwed over and forced to work on your 4 days off because "rules") - Worked with great and very skilled mechanics at the plant

Cons

Where do I start?! - Maintenance department is a joke. The shop has little to no specialty machinery or tools. Need a angle grinder? You'll spend 2 hours just trying a find a non compliant one. Great mechanics..... just lead by some horrible supervisors and managers - Provide your own tools (Multi-billion dollar company... still requires you to bring your own tools. They say they will replace your self supplied tools that are damaged.... right..... The plant deserves the cheapest of the cheap tools due to this issue.) - Maintenance supervisors/managers are clueless (Half of them can't even stay their full 9 hour shift yet you get yelled at for not doing your job. How does that work???) - Forced over time (Union/company rules). Lets be honest here, people have lives.... don't force overtime when its admitted by management that it is NOT NEEDED. - Want to go up in rank from a mechanic 3 to a 1? Yea, good luck..... oh don't worry, as a mechanic 3 you will be given tasks meant for higher mechanics. Expect a very LONG E-training that your manager(s) don't want you doing on your shift because its not work related. - The posted schedule is the "final say". If you aren't working that day or they failed to update the schedule on time, DONT WORRY they will find a way to let you know you work these days even if its under 48 hours. - Need to communicate with your supervisor during nights? Forget about it.... your better off calling McDonalds for answers or advice. - On nightshift? Congrats, your forced to come in on your off shift to work dayshift on "down days". - Ask for replacement power tools for the shop that have gone missing? Or do you need your required cold weather gear that was supposed to be supplied to you on day 1? Don't worry, you will get a useless cabinet to put brooms and dust pans in instead. - Managers need something from you and you are on night shift? Don't worry the request/question is written on a white board for you to answer. It's like email is non existent there! - Health and safety is taken very "seriously" there. But they fail to execute providing the required PPE. Waited 2 months to get my PAPR, which by the way, was used by some other person that no longer works there. - Need forklift training? You won't get your training. - Expect to do some production tasks as some of the production employees are lazy or not trained properly. (This plant has a very high turnover rate and production training is horrible) My list can go on and on. These are what I have experienced in the 9 months I worked there. Toxic environment, VERY VERY VERY unorganized.

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GAF Response
9mo
Thank you for your candid and comprehensive feedback. We are sorry to hear that your experience with our maintenance department, management, and training has been so negative, as this is not the environment we strive to create. We take your concerns about tool availability, forced overtime, and a lack of support for career advancement very seriously. We are committed to fostering a respectful and well-organized workplace, and we will be reviewing your comments with leadership to address these critical issues and improve our communication and processes. We appreciate you taking the time to share your perspective. Feel free to email us at gaf.hrparsippany@gaf.com if you have anything else you'd like to share.
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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.