Johns Manville Reviews

Rating Trends
Recommend to a friend
Approve of CEO
Johns Manville President & CEO Mary Rhinehart
Mary Rhinehart
22 Ratings
  • Helpful (1)

    Marketing Specialist

    • Work/Life Balance
    • Culture & Values
    • Career Opportunities
    • Comp & Benefits
    • Senior Management
    Current Employee - Anonymous Employee in Denver, CO
    Current Employee - Anonymous Employee in Denver, CO
    Positive Outlook
    Approves of CEO

    I have been working at Johns Manville full-time (More than 10 years)


    There is a lot of growth potential here, but you have to fight hard for it. Employees are encouraged to learn all aspects of the business and get exposure to everything. Compensation and benefits are well thought out and generous. The recently renovated work space is inspirational.


    If you have a degree in engineering, you can write your ticket at JM - an endless source of frustration for everyone else. In many ways, creativity and innovation a stifled by too much linear thinking. The company is a little old fashioned, but they're working on it. There is "old-guard" leadership at the director level throughout the company, so a lot of "that's how we've always done it" and demanding that up and comers "pay their dues" - totally detrimental to knowledge transfer.

    Advice to Management

    Give credence to employees with degrees other than engineering. Look for and foster real leaders - not just the loudest. Lead the pack in terms of innovation - green building, etc. Don't just wait for someone else to do it - even if the market isn't ready, it's coming so have a plan on the shelf.

Johns Manville Interviews

Interview Experience

Interview Experience


Getting an Interview

Getting an Interview


Interview Difficulty


Interview Difficulty




    Maintenance Technician Interview

    Anonymous Interview Candidate in Reno, NV
    No Offer
    Neutral Experience
    Average Interview


    I applied online. I interviewed at Johns Manville (Reno, NV) in September 2015.


    This was a phone interview with a maintenance supervisor and engineer. They were both very courteous and professional. However, I didn't bring enough to the table for this opportunity. I was asked some questions on my skills and qualifications. My skill set is more mechanical than electrical.

    Interview Questions

    • What would you do if a 480 volt conveyor system stopped working.   1 Answer

Johns Manville Awards & Accolades

Let us know if we're missing any workplace or industry recognition – Add an award

Additional Info

Unlock Profile
Headquarters Denver, CO
Size 5001 to 10000 Employees
Operated By Berkshire Hathaway
Founded 1864
Type Subsidiary or Business Segment
Industry Manufacturing
Revenue $2 to $5 billion (USD) per year

Come rain, snow, sleet, hail, and even fire, Johns Manville (JM) keeps its customers protected from the elements. JM produces commercial and industrial roofing systems and formaldehyde-free fiberglass insulation for the commercial and residential building industries. The company also produces residential building insulation as well as specialty insulation for the aerospace, transportation, acoustics, appliance, and HVAC industries. Other offerings include fire-protection systems, thermal and acoustical insulation, glass textile wall coverings, and fibers and nonwoven mats ... More

Work at Johns Manville? Share Your Experiences

Johns Manville

Click to Rate