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BGSN: Being Great Starts Now
Built on the Jobsite. Backed by 25+ Years.
BGSN Mechanical Construction is a Louisiana-based commercial mechanical contractor specializing in HVAC, plumbing, and sheet metal fabrication — built on real jobsite experience, not just management.
A Self-Performing Mechanical Contractor Built From the Field Up
BGSN Mechanical Construction is a Louisiana-based commercial mechanical contractor specializing in HVAC, plumbing, and sheet metal fabrication. We are a self-performing contractor with hands-on field experience — not just management — serving the Greater New Orleans and Northshore areas.
Our company was built on real jobsite experience. Every project we take on reflects the values, discipline, and craft that come from years of turning wrenches before leading crews. That foundation is what makes us different — and it's what our clients and partners count on.
What Drives Us Every Day
The Principles That Guide Everything We Do
Integrity
Do the right thing, even when no one is watching.
Quality Craftsmanship
Take pride in the work. Do it right the first time.
Accountability
Own your work. Own your mistakes. Fix it and move forward.
Transparency
Communicate clearly. No surprises. No runaround.
Work Ethic
Show up. Work hard. Outwork the competition.
Team Mentality
We win together. Support each other. Lift the crew up.
What Sets Us Apart
There are plenty of mechanical contractors out there. Here's why GCs, facility owners, and project managers choose to work with BGSN.
We Self-Perform Our Work — Our crews do the work. We don't rely on a chain of subcontractors you've never met.
Field Leadership, Not Just Office Management — Our leadership has real field experience — we've turned wrenches, run jobs, and managed crews from the ground up.
Problem Solvers, Not Finger Pointers — When something goes sideways on a job, we fix it. We don't pass the blame.
Experienced Across Project Types — Schools, hospitals, hotels, industrial plants, warehouses — we've done it all and we bring that experience to every new job.
Ownership Mentality — We treat every project like our name is on the building — because it is.
Meet the Team Behind BGSN
Allen "AJ" Raimer Jr.
President
AJ brings a field-first mindset to every project. With 25+ years of experience in the mechanical trade, he has worked his way from field mechanic to estimator to project manager to company executive. That hands-on background informs how BGSN operates — with a focus on quality, accountability, and getting the job done right.
Under AJ's leadership, BGSN has grown into a trusted mechanical partner for general contractors, facility owners, and project teams across the Gulf Coast. His approach is simple: show up, do the work, and stand behind it.
Licenses & Certifications
Ready to Work With a Mechanical Partner You Can Count On?
Whether you're planning a new build, need reliable service, or want a partner who shows up and gets the job done — let's talk.