Expert Specialty Services Supporting Critical Industrial Operations
National offers a variety of specialty services to complement our industrial services capabilities.
These specialty services include: Chimney and Stack, Vessel/Tank Design, Install, and Repair, Welding Services
Chimney & Stack Services
National’s Chimney and Stack group consists of SPRAT Certified Technicians and specializes in inspections, non-destructive testing and repairs in high-angle and confined space applications. These capabilities provide a cost effective alternative for various aerial requirements.
Service Features
Installations
Inspections
Non-Destructive Testing
Repairs
Masonry, Concrete Spalls, Crack Repairs
Demolition
Brick & Metal
Ladders & Platforms
Breeching Ducts
Lightning Protection
Umbilical Installation
Painting & Coating
SPRAT Certified Technicians
Other Structures & Services
Cooling Towers and Coal Silos
Rope Access / High-Angle Work
Rescue Standby
Roof, Cladding, Painting, Masonry Repairs
Obstruction Lighting (All Structures)
Installation, Maintenance, Repair
Hydro Blasting, Washdown and Other Cleaning
National follows strict requirements applicable to the design, fabrication, inspection, testing, and certification of code pressure vessels outlined in ASME Section VIII, Division 1. Our capabilities include design, fabrication, repair and alterations.
In compliance with ASME and NBIC standards, we are code certified with the following:
ASME U Stamp
Fabrication or weld modifications of unfired pressure vessels
ASME S Stamp
Power Boilers (15+ psi steam, 160+ psi water, 250+ °F)
NBIC R Stamp
Repair and/or alteration of boilers and pressure vessels
Vessel / Tank design, Install, and Repair
Welding Services
As a core competency, National specializes in providing a variety of welding applications, including P91, high and low temp alloys, and exotic metals. We utilize various types of welding processes including GMAW, TIG and SMAW.
Supporting National’s welding services, our QC inspectors and supervision have been through rigorous QC training programs. These programs consist of Visual Examination, Weld Inspection Technology, NBIC Training, ASME Sect. IX, Document Control, Liquid Penetrant Testing, and Communication.
Our infrastructure allows the QC Program to address any code or production problems that might arise. Starting with a belief that communication is essential for quality, we promote supervisor involvement throughout the process.
Key Benefits
Downtime Reduction
Rapid mobilization minimizes downtime, reducing costly delays
Tailored Solutions
Custom services designed to meet the unique requirements of specialized equipment.
Code Compliance
Services meet industry standards for safety, quality, and performance.
Scalability
Ability to deploy specialized teams for large-scale projects.
Comprehensive Coverage
Streamlined vendor management through a single source for all specialty equipment needs.
Pulp & Paper
Specialty services for the pulp and paper industry, including complex machinery repairs, high-temp systems, and energy recovery solutions to keep mills running efficiently.
Power Generation
Supporting the power industry with specialized maintenance, repairs, and system upgrades for high-pressure and high-temperature systems, including energy recovery systems.
Petrochemical
We provide specialty services for complex systems in the petrochemical sector, including custom machinery, high-pressure components, and energy recovery systems to optimize performance.
Industrial Manufacturing
Ensuring manufacturing plants operate without interruption with comprehensive specialty care, component replacements, and fast-deploy emergency solutions.
Why Choose National?
Let’s keep your operations running at peak performance.
30+
Years of expertise
24/7
emergency response
100+
Outages executed every year
5,000+
Craft database resources
Schedule Certainty
Accredited
QA/QC program
Built on Safety, Focused on Excellence
NBIC “R” stamp and ASME “S” and “U” stamp holder
What types of specialty services does National provide?
National offers a variety of specialty services to complement our industrial services capabilities including:
• Chimney and stack
• Vessel / tank design, install, and repair
• Welding services
What services are performed under the Chimney and Stack group?
In addition to performing inspections, repairs and installations related chimney and stack applications, National's team is capable of performing similar services in many other high-angle and confined space applications such as cooling towers and coal silos.
What certifications does National hold for specialty services?
National's rope access technicians are certified under the Society of Professional Rope Access Technicians (SPRAT).
Get Started
Let’s keep your operations running at peak performance.
