Johns Manville reviews

3.6

65% would recommend to a friend

(424 total reviews)
avatar

Bob Wamboldt

67% approve of CEO

64% positive business outlook

Johns Manville has an employee rating of 3.6 out of 5 stars, based on 424 company reviews on Glassdoor which indicates that most employees have a good working experience there. The Johns Manville 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

424 reviews
1.0
Apr 7, 2026

Not safe place to work

Recommend
CEO approval
Business Outlook

Pros

7 consecutive days off in a row

Cons

Not safe place to work!..Management always switched to new,..very big turnaround, people quit often

4.0
Apr 3, 2026

It was ok ok experience

Recommend
CEO approval
Business Outlook

Pros

Company is paying good Good work life balance

Cons

No increment No work from home

3.0
Mar 16, 2026
Recommend
CEO approval
Business Outlook

Pros

A lot of work, good amount of OT

Cons

Tough conditions for some working in variable weather conditions

Viewing 4 - 6 of 424 Reviews

Glassdoor has 460 Johns Manville reviews submitted anonymously by Johns Manville employees. Read employee reviews and ratings on Glassdoor to decide if Johns Manville is right for you.