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BUILDING shared success
FOR YOUR companies & communities

Provide relationship-focused, high quality services that drives shared success.


Build a people focused culture into the industrial contracting industRy.


We are home to fabricators, welders, MILLWRIGHT, ironworkers, electrician, and professionals; motivated to help you succeed.

Located in Lancaster, PA, Bass has been in business for over 20 years, serving customers throughout the United States. We are a second-generation,  family owned business that prides itself in producing quality work, maintaining relationships, and serving both our clients' and employees' needs. Bass was originally founded to offer custom steel fabrication services,  and has since  grown to three core business units - Mechanical, Fabrication, and Electrical services. Bass strives to continuously innovate all facets of industrial contracting. 

Bass' office and steel fabrication shop houses over 18,000 square feet of fabrication space and  is home to our leadership team and engineering staff. We conduct AWS Certified welding and fabrication, in addition to staffing CWI endorsed personnel by AWS. Additional Certifications in multi-process welding include SMAW, FCAW, GMAW, GTAW of mild, stainless and aluminum. Bass is AISC Certified as a Building Fabricator and Advanced Steel Erector.


Strive to put yourself in a position with friends, family, community and occupation where you will see your life as a gift and appreciate the fact of your existence. So; you can help others appreciate their life.
— Aldus E. Baum

The Baum Family 

Pictured Left To Right (Casey, JD, Jade, Shelley, Al, Christian)

Aldus e. baum & family

Bass Mechanical, Inc. was founded by an incredible leader, entrepreneur, and father - Aldus E. Baum, who suddenly passed - May 2nd, 2014.

Al's spirit of innovation, love of life, and compassion for his family and employees continues to drive us forward to create a better tomorrow. We hope that you join us in the appreciation and remembrance of the life of Aldus Earhart Baum; a father, husband, friend, leader, and hero who has brought unfathomable joy and love to so many.