Commercial
Commercial plumbing, licensed the way Louisiana requires it.
Lift stations, water jetting, backflow prevention, repipes and heating and cooling in working buildings across Shreveport, scheduled so the floor keeps running while we're in it.
Chapter 01
The license a commercial job in Louisiana actually requires
Two different credentials cover commercial plumbing in this state, and they cover different things. The State Plumbing Board of Louisiana issues the Journeyman and Master Plumber credentials that certify the people doing the work. We hold Louisiana State Plumbing Board license #LMP1321.
Separately, any commercial job valued over $10,000 in labor and materials requires a commercial contractor license through the Louisiana State Licensing Board for Contractors. That threshold catches most real commercial plumbing work, from a repipe to a lift station overhaul, and it's a different license from the individual plumber's credential.
Both matter. A crew can hold Journeyman or Master Plumber cards and still not be legally set up to run a job over that dollar threshold without the LSLBC contractor license behind it.

Two Roach Plumbing & Heating staff beside a branded service truck showing the USDOT number, Shreveport.
How to check any contractor's license before they start
Verification on both is free and takes a few minutes. The State Plumbing Board of Louisiana's website will confirm a Journeyman or Master Plumber credential, and the Louisiana State Licensing Board for Contractors' website will confirm a commercial contractor license and whether it covers the trade and job size you're hiring for.
We would rather you check than take our word for it. It costs nothing, and it's the fastest way to know who is actually allowed to be running the job in your building.
Chapter 03
Working around a building that doesn't stop
Lift stations, high pressure water jetting, backflow assemblies and full repipes are the calls we get most from commercial customers, and none of them are jobs you can run the same way you would run a house call. A building keeps operating while we're in it, which means access, noise and shutoffs get scheduled around whoever is using the space, not the other way around.
A sewer lift station going down doesn't wait for a convenient afternoon, and a repipe in an occupied building usually happens in sections, floor by floor or line by line, so the parts of the building that don't need to be touched keep running.
Both trades under one roof, one phone number
The same shop that handles a commercial repipe also handles the building's heating and cooling, which matters more than it sounds like it should. A rooftop unit fault and a gas line fault can look identical from a tenant's side of the wall, and having one contractor who covers both means one call instead of two.
Over sixty years in Shreveport means most of the working buildings we're called to aren't new to us. We've usually been in them before, which is its own kind of shortcut when something needs diagnosing fast.
Roach Plumbing. Louisiana license #LMP1321, USDOT 475176. Call (318) 631-4533.