Safety & Quality


We understand that you have to be careful about the people you trust to work on the equipment and machinery within your facility. An unsafe crew of workers can be a danger to your building and the most valuable members of your team. Contractors with low standards of quality can result in the need for repeated repairs and the inefficient function of vital systems. Hayes Mechanical is known for our safety standards and quality assurance procedures in Chicago, Illinois; Omaha, Nebraska; Pittsburgh, Pennsylvania; Saginaw, Michigan; St. Louis, Missouri; Minneapolis, Minnesota; Phoenix, Arizona; and Green Bay, Wisconsin. Whether we’re helping you with your boiler or your HVAC system, you’ll be amazed by our award-winning team!

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Contact us and let us know how we can help bring our industry leading commitment and dedication to safety to your next project.

Learn About Our Safety Standards


For over 100 years, Hayes Mechanical’s quality control and quality assurance teams have provided its customers with uncompromising workmanship. Having the distinction of holding three (3) A.S.M.E. certificates and the National Board “R” stamp, Hayes Mechanical is uniquely qualified to handle the many facets of today’s industrial installation, repair, alteration, and maintenance requirements. Our Corporate Welding Manual currently has over 175 welding procedures covering multiple processes, base metals and filler metal combinations.

Assisting customers meet stringent quality requirements, as well as understanding all current industry standards and specifications, Hayes Mechanical’s unwavering devotion to quality assures the correct processes and procedures are provided and executed every project, every day.

Contact us and let us know how we can help bring our industry leading commitment and dedication to quality to your next project.

Learn About Our Quality Standards

Our ASME Stamps

The American Society of Mechanical Engineers A.S.M.E. certifies contractors by giving them designated stamps for specific types of work. We have earned the following Stamps:

A Stamp

A STAMP: Assembly of Power Boilers (Field)

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S Stamp

S STAMP: Manufacture and Assembly of Power Boilers (Shop/Field)

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U Stamp

U STAMP: Manufacture of Pressure Vessels (Shop/Field)

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R Stamp

National Board R STAMP: Repairs/Alterations (Shop/Field)

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Our Awards

Over the years, our team has garnered a lot of attention for the safe and reliable work we perform. While the most significant award for our work is helping industrial and commercial facilities succeed, we are proud to have received the following awards and accolades.

National Safety Council (Nsc)

  • NSC Industry Leader Award 2011

  • NSC Occupational Excellence Award 2007 – 2008 – 2009 – 2010 – 2011 – 2012 – 2013 – 2014 – 2015 – 2016 – 2017 – 2018 - 2019

  • NSC Million Man-hours without lost time injury 2018

  • NSC Perfect Record No Lost Time Award 2018

Northwest Indiana Business Roundtable (Nwibrt)

  • NWIBRT Safety Award 2007 – 2008 – 2011

  • NWIBRT Safety Recognition Award 2012 – 2014 – 2015 - 2016 – 2017 – 2018 – 2019

  • NWIBRT Safety Achievement Award 2013

  • NWIBRT Safety Innovation Award 2013

Three Rivers Manufacturers Association (Trma)

  • TRMA Safety Award 2008 – 2009 – 2010 – 2011 – 2014 - 2015

  • TRMA Gold Award 2005 – 2010 – 2012 – 2013 – 2016 – 2017 – 2018 - 2019

The Association of Union Contractors (Tauc)

  • TAUC Thomas J. Reynolds Safety Award 2011

  • TAUC Safety Award 2013

Mechanical Contractors Association (Mca)

  • MCA Best Record in Safety 2007 - 2008

  • MCA Safety Award 2009 – 2011 – 2012 – 2014 - 2015

  • MCA Most Innovative Safety Program 2011

Institute of Real Estatemanagement (Irem)

  • 2007 IREM Vendor of the Year Award Winner

  • 2009 IREM Leadership Award Winner

  • 2010 IREM Community Service Award

National Maintenance Agreement Policy Committee (Nmapc)

  • Primary Energy Award No Recordable Injuries

  • NRG Award No Recordable Injuries

Northern Indiana Public Service Company (Nipsco)

  • Zero Injury Award 2016 – 2017 – 2018 - 2019

Great Lakes Construction Association

  • Safety Award 2017 – 2018 - 2019

Lake County Safety Council (Lcsc)

  • Safety Award 2013 & 2019

Karn Fossil Plant

  • Certificate of Recognition 2017 National Safety Stand-Down Fall Prevention

Work With Hayes Mechanical Now!

Our team is always excited to work with new commercial and industrial facilities. Whether you need routine maintenance for your plumbing system or repairs for your ventilation system, we have the team for you. We work within carefully established safety protocols and follow proven procedures that ensure the quality of our work. To work with Hayes Mechanical, fill out a contact form or call us today!