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Custom-fabricated aluminum truck-bed weldment built by Sons of Thunder Welding

From your drawings or ours · Built & installed

Custom Fabrication

Bring us a print, a sketch, or a problem. We design what is missing, fabricate it to spec, and install it — heavy weldments and one-offs that have to fit and function the first time.

In short

We build custom industrial metal fabrication from your drawings or ours — heavy weldments, one-off builds, and build-to-spec assemblies — designed, fabricated, and installed start to finish.

Custom work is where reputation is made. When a machine shop’s own build was not coming together, we fabricated six 5,000 lb+ industrial doors and frames as their partner — and they sealed perfectly on install.

Those doors carried internal heater channels that had to be water-tight. We passed spec on every one — the first time the end client had ever sealed a set without taking them back down to re-weld.

Row of custom steel box housing weldments clamped for fit-up by Sons of Thunder Welding
A run of custom box weldments clamped for fit-up — repeatable production fabrication from prints.
Top-down view of a steel door's internal welded grid of water-tight heater channels before skinning
100% Leak-test pass rate

Featured build

5,000 lb doors — sealed the first try

A machine shop’s own build was not coming together, so they brought us in as their fabrication partner on six 5,000 lb+ industrial door and frame combinations that had to seal perfectly on install.

The doors had internal heater channels that had to be water-tight. We passed spec on every one. The end client said it was the first time they had ever sealed a set of doors without taking them back down to re-weld.

  • Six 5,000 lb+ door & frame combos
  • 100% leak-test pass on water-tight channels
  • Sealed first try — no re-work

How it runs

How we run custom fabrication

  1. 01

    Define the build

    We work from your drawings or develop them, confirm fit, tolerance and function, and plan the weldment.

  2. 02

    Fabricate

    We build the structure to spec — engineered fit-up, clean multi-pass welds, and the internal detail the part needs.

  3. 03

    Test where it matters

    When a part has to be water-tight or pressure-tight, we test it — and pass before it ships.

  4. 04

    Deliver & install

    We deliver and install so it fits and functions the first time, on site.

Tell us what you're up against.

Send drawings, prints, or photos for your custom fabrication scope — we'll come back with capacity and a fast quote.

Good to know

Custom Fabrication — questions we hear

Can you fabricate from my drawings?

Yes — we build to spec from your drawings or develop the drawings with you, then fabricate and install the finished weldment.

Do you handle heavy weldments?

Yes. We have fabricated 5,000 lb+ door and frame weldments and heavy assemblies, engineered for fit and function.

Can you make a weldment water-tight or pressure-tight?

Yes. We have built weldments with internal water-tight channels and passed leak/pressure spec on every unit before delivery.

Do you install what you build?

Yes. We design, fabricate, and install start to finish so the part fits and functions the first time on site.

Let's build it

Send your drawings. We'll quote them fast.

We don't cut corners. We don't ghost jobs. Rapid response across Northwest Indiana, Chicagoland & Southwest Florida.

  • AWS-certified welders
  • OSHA 10/30
  • Insured & bonded