Welding and Mechanical Contractor Services
Frank Zotynia & Son handles the full scope of industrial mechanical work — fabrication in our Hackensack, NJ shop, installation and repair in the field, and the planning that keeps your plant on schedule.
One accountable team, on time and on budget, since 1999.

National Board R Stamp Repairs
Frank Zotynia & Son holds a National Board R Certificate of Authorization for repairs and alterations to boilers and pressure vessels, in the shop and field.
Every code repair follows the National Board Inspection Code (NBIC) and our audited quality program, is verified by a National Board Commissioned Inspector, and is documented on the required NBIC R forms.
Learn more about our R Stamp services →
Process Piping Systems
We fabricate and install process piping for chemical, pharmaceutical, food and beverage and manufacturing plants — carbon steel, stainless steel and specialty alloys.
Our crews handle layout, spool fabrication, installation, pressure testing and tie-ins, with minimal disruption to running operations.
Pipe Fitting and Installation
New lines for a plant expansion, repairs, or modifications to existing systems in stainless, carbon steel, PVC and other materials. Every installation is completed safely and to applicable codes.
Orbital Welding
Automated orbital welding produces consistent, repeatable, high-purity welds — the standard for sanitary tubing, pharmaceutical and food-grade lines, and critical process piping.
Plastic Fusion Welding
Butt fusion and socket fusion for HDPE, polypropylene and other thermoplastic piping, used for chemical transfer, water and corrosive-service lines.
O2 Pipe Installation
Oxygen piping demands strict cleanliness and safety controls. We plan, install and maintain O2 systems to the applicable industry standards.
Structural Steel and Custom Fabrication
Platforms, supports, pipe racks, frames and one-off parts, built in our 20,000 sq. ft. shop or on site, in carbon steel, stainless and aluminum.
Boilers, Burners and Cooling Towers
Installation, overhaul and upgrades of boilers, burners and cooling towers to improve efficiency, safety and service life. Pressure-boundary repairs are handled under our R Stamp.
Rigging, Plant Dismantling and Relocation
We rig, move and set equipment, and dismantle and relocate whole production lines or plants, planned to keep downtime to a minimum.
Plant Start-Ups
We install, test and commission systems so your new plant or line starts up smoothly and on schedule.

Pipe Insulation
Insulation for process, steam and chilled-water piping to save energy, protect workers and control condensation.
Outsourced Maintenance Technicians
Skilled welders, pipe fitters and mechanics for scheduled shutdowns, turnarounds or ongoing in-plant maintenance — without adding to your headcount.
General Contracting and Project Management
We manage mechanical projects from planning to final inspection, coordinating with your engineers, architects and other trades so the job stays on schedule and on budget.
Industries We Serve
Chemical · Pharmaceutical · Food and beverage · Manufacturing · Utilities and power · Commercial facilities
Why Choose Frank Zotynia & Son?
On time, on budget. Every job is planned in detail so you avoid costly delays.
Accountable. We own every job we take on and fix issues fast.
Safe and compliant. Trained crews, proper PPE, and code-certified work.
See the work for yourself on our Projects page
Tell us What you need?
Tell us about your equipment and we'll get back to you within 2 business days.
