ASME U & R Stamp · TEMA · NQA-1 Nuclear Call us: 800-767-9507
Harris Thermal
Products & Services Overview Shell & Tube Heat Exchangers Pressure Vessels / Tanks Other Fabrication Machining / Drilling Repairs
Capabilities Overview Fabrication Machining Materials Engineering Quality Control Safety Logistics & Shipping
Industries Overview Oil & Gas Pulp & Paper Power Generation Water Treatment Food Processing Mining & Minerals Chemical LNG Nuclear
About About Us Certifications Employment
Resources Contact Get a Quote →
Products & Services · Custom Fabrication

The custom equipment other shops call impossible.

From nuclear test equipment to concept-design specialty equipment, Harris Thermal delivers projects that land well outside what most fabricators consider normal — on time and to the most stringent specifications.

Your Trusted Fabrication Partner

Have a challenging custom piece of equipment?

Let Harris Thermal be your trusted fabrication partner to complete your project on time and with the highest quality while meeting the most stringent specifications.

Because everything happens in our shop — from concept design through fit-up — we control quality and schedule end to end, and your equipment arrives onsite ready for fast installation.

  • B31.1 & B31.3 code piping
  • Gored elbows & alloy ducting
  • Prefabricated pipe spools
  • Complete skid packages with controls
  • Shop fit-up to cut install time
  • Nuclear test equipment
Custom fabrication at Harris Thermal
In-house
Concept to completion
What We Build

If you can spec it, we can fabricate it.

Piping & Ducting

Gored elbows, alloy ducting runs, B31.1 and B31.3 code piping, and prefabricated spools — fabricated to print and delivered ready to install.

Modular Skids

Complete package systems fit up in our shop — structure, equipment, piping, and controls integrated and tested before they ship.

Ozone Generators

Specialized ozone generation equipment built precisely to your specifications, drawing on decades of experience with demanding process equipment.

Wave Generators

One-of-a-kind custom equipment engineered and fabricated to meet your specific requirements — even when no standard design exists.

Ladders & Platforms

Save time and cost by having ladders and platforms fit up in our shop — reducing install time when your equipment arrives onsite.

Hard Facing

Hard facing of critical components to extend service life in abrasive and high-wear applications.

From nuclear-grade to never-been-built.

Our NQA-1 nuclear program and 50,000+ sq ft of fabrication floor mean we can take on the projects that don't fit anyone else's shop.

Frequently Asked Questions

Custom Fabrication FAQs

What is the difference between B31.1 and B31.3 piping?

ASME B31.1 covers power piping (boiler external piping, steam systems in power plants); B31.3 covers process piping in chemical, petroleum, and related plants. Harris Thermal fabricates to both codes and holds the ASME “PP” stamp for power piping.

What is a modular process skid?

A modular skid is a complete process system — vessels, exchangers, pumps, piping, and controls — assembled and fit up on a structural frame in the fabricator’s shop, then shipped as a unit. Shop fit-up reduces on-site installation time, labor cost, and schedule risk compared to field assembly.

Can you fabricate equipment when no standard design exists?

Yes — that’s a specialty. From nuclear test equipment to wave generators and concept-design specialty equipment, Harris Thermal takes on projects that land outside what most fabricators consider normal, with in-house engineering to take your concept to a buildable design.

What is hard facing and when is it needed?

Hard facing is the application of wear-resistant material to component surfaces to extend service life in abrasive or high-wear applications — common in mining, slurry handling, and high-velocity flow services.

Do you fabricate nuclear-qualified equipment?

Yes. Harris Thermal operates an NQA-1 quality program for nuclear-grade fabrication, including nuclear test equipment — see our NQA-1 nuclear page for the program’s scope.

Have an unusual project in mind?

Bring us the equipment nobody else will quote. Our engineers will help you take it from concept to completion.