Full Service Mechanical Contractor

Offering a strong diversity of mechanical services

Serving Chicagoland since 1963



We offer innovative design, system fabrication, project coordination and field installation to meet the needs of today’s commercial construction industry.


Heavy Industrial

We offer complete total plant development, installation, process piping, refrigeration, expansion projects, or performing recurring maintenance.


Industrial Refrigeration

Offering turnkey solutions to our customers both local and national.


Food & Process Piping

AMS offers the design and installation of process and utility piping.


Service & Maintenance

We are available for our customers 24/7.


Safety, making zero accidents a reality…

Home Safe Everyday


Quality Assurance

Quality management focused on providing confidence that quality requirements will be fulfilled.

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Thank you for your interest in career opportunities at AMS Mechanical Systems, Inc. We are always interested in experienced project managers, project engineers, field engineers, craft superintendents, service account representatives, and office support staff.

View current career opportunities

AMS Mechanical Systems goes beyond finding candidates who are merely qualified — we seek the most talented and committed professionals to become apart of our company.

AMS growth as a company is driven by individual growth, so we support all of our employees with the training, tools and encouragement they need to succeed.

AMS Mechanical Systems is an employee owned company. Many of our employees’ careers span decades. In fact, the average tenure of any one of the 10 members of AMS’s Senior Management team is more than 17 years.

Our impressive retention rate can be attributed to our focus on recruiting the right people and providing an atmosphere where personal and professional development is the foundation for company growth.

What We Look For

Our high standards of excellence, innovative approach, and dedication to exceeding the needs of our customers are well known throughout the industry. Listening to and establishing solid long-term relationships with our clients and our industry have been the catalyst for which we model our successes. AMS Mechanical’s strong leadership and reputation for meeting the challenges and demands of our customers through deliberate and definitive response to growth and change have helped us grow from a one-man proprietorship back in 1963 to an employee owned corporation of more than 500 employees today.

We Offer A Competitive Employee Benefits Package

AMS Mechanical Systems, we know the difference is in our people. Dedication to teamwork and training is the way we maximize the skill, craftsmanship, and client service we bring to every project. In order to maintain this standard of excellence, it is crucial we have not only an attractive product or services offering, but also be able to recruit and maintain a group of productive qualified employees.
• Medical/dental/vision insurance
• Life and accidental death insurance
• Long-term disability insurance
• 401k/profit sharing
• Paid vacation time and holidays
• Continuing education incentives

Motivated and Creative

AMS Mechanical also offers enthusiastic University students the opportunity to gain valuable work experience through our company. Interns are exposed to many facets of the mechanical contracting industry while applying the knowledge gained during their college coursework.

We employ motivated and creative students as interns with the desire of developing relationships leading to permanent career opportunities with our company. AMS typically employs students of Mechanical Engineering and Construction Management programs; however, students of other disciplines are encouraged to contact us.

Submit Resume

If you are interested please send your resume via email to our HR Manager and in the subject please name the position desired.

Current Job Openings

Equal Opportunity Employer
What Our Employees Have To Say

Lynn Carmody

VP Heavy Industrial (Semi-retired)
"What I value the most " is the openness, honesty, integrity and friendship of John Berzanskis which filters down to the entire Management team.

The end result is that the management embraces treating all employees and clients with fairness, dignity and respect. Having been in this business for 55 years, I truly believe that AMS is the finest company in the business and it is pleasure to be a part of such a company.

Steve Schnettler, Designer

Engineering Department, 2 years
I have to say that what I value most about working at AMS is that I am surrounded with some of the most talented people I have ever met. I have worked for fortune 500 companies and smaller companies with less than 25 employees. What I notice here is the large number of people with advanced degrees in engineering. This is a valuable marketing asset. The other thing I like about working here is that, on a personal level, I have not seen any ego driven management (you know, real chest pounders). Everyone here is very laid back and team oriented.

Brooke Charbonneau

Administrative Assistant
AMS Mechanical Systems has provided me with an amazing job for almost a year now. Everyone here is hard working, and also caring and supportive. You truly feel like you are working as a team here which is hard to find. All of management really cares about their employees and makes sure they are well taken care of. This is an amazing company to work for.

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