Backflow Testing in Louisiana
Backflow Testing across Louisiana: the 339 ZIP codes and 167 cities we route calls in, and who licenses plumbers in the state.
Free to homeowners in Louisiana — the contractor pays us for the introduction, you never do.
Who has to test
Our backflow testing coverage in Louisiana runs to 339 ZIP codes in 167 cities. Backflow assemblies are required where a premises can push water back into the main, and in a state of large municipalities that duty is usually written into one city-wide water ordinance that applies the same way across tens of thousands of connections.
Source: coverage area as published by our call partner; place and county names from the US Census Bureau.
We route backflow testing calls in 339 ZIP codes across 167 Louisiana cities, in 53 counties.
What this site is
CrossConnect is a referral service, not a contractor. We connect property owners and managers with independent contractors. Backflow assembly testing is normally restricted to testers holding a specific certification and using calibrated equipment, and the report usually has to reach your water purveyor — ask to see the certification and ask who files the report. We carry out no testing, we certify nobody, we do not set prices, and we never charge callers anything. Nothing here selects a device for any installation or states that any assembly is passing.Checking a credential in Louisiana
Louisiana licenses are issued by the State Plumbing Board of Louisiana, which publishes a public search you can use before work begins.
18 of the 52 Louisiana counties we cover, from the top of the alphabet
- Acadia County 1 ZIP code
Branch - Acadia Parish County 4 ZIP codes
Crowley, Church Point, Rayne - Ascension County 1 ZIP code
Darrow - Ascension Parish County 7 ZIP codes
Gonzales, Donaldsonville, Geismar, Prairieville, Saint Amant, Sorrento - Assumption County 3 ZIP codes
Labadieville, Paincourtville, Plattenville - Assumption Parish County 2 ZIP codes
Belle Rose, Napoleonville - Bossier County 1 ZIP code
Barksdale AFB - Bossier Parish County 7 ZIP codes
Bossier City, Benton, Haughton - Caddo County 1 ZIP code
Belcher - Caddo Parish County 12 ZIP codes
Shreveport - East Baton Rouge County 1 ZIP code
Pride - East Baton Rouge Parish County 46 ZIP codes
Baton Rouge, Baker, Greenwell Springs, Zachary - East Feliciana County 2 ZIP codes
Ethel, Slaughter - East Feliciana Parish County 1 ZIP code
Jackson - Iberia County 3 ZIP codes
Avery Island, Delcambre, Loreauville - Iberia Parish County 4 ZIP codes
New Iberia, Jeanerette - Iberville County 3 ZIP codes
Carville, Rosedale, Sunshine - Iberville Parish County 1 ZIP code
Saint Gabriel
34 more Louisiana counties are inside the coverage area and are not listed here. If your ZIP code is in Louisiana, the call reaches a contractor.
What that coverage looks like
The 53 counties in our Louisiana footprint are served by many separate water suppliers, and each one decides which premises must test and how often. Jefferson Parish County, with 88 covered ZIP codes, is the largest single block of them; New Orleans alone holds 61.
How a backflow testing job goes
A backflow test is a scheduled job that ends in a document. The assembly is isolated, the differential across it is measured, the result is written down, and the report goes to whoever requires it. A failed test means a repair or a rebuild and then a re-test; it does not mean the premises closes that day.
What the call asks about backflow testing
- What kind of premises it is and what is connected to the supply — irrigation, a boiler, a fire line, a commercial kitchen.
- Who is asking for the test: a water supplier, a health department, or a landlord.
- Whether there is an existing assembly with a serial number on it, and when it was last tested.
Every Louisiana city we route in
27 cities, ordered by the share of buildings with twenty or more units. Containment assemblies are required building by building, and that is where the buildings are. Each page carries that city’s own numbers and the ZIP codes we route there.
- Metairie 15%
- Baton Rouge 14%
- New Orleans 12%
- Kenner 9%
- Lafayette 8%
- Houma 7%
- Gonzales 7%
- Covington 6%
- Shreveport 5%
- Slidell 5%
- Mandeville 5%
- Gretna 5%
- Bossier City 4%
- Zachary 4%
- Denham Springs 3%
- New Iberia 3%
- Westwego 3%
- Chalmette 3%
- Thibodaux 3%
- Baker 3%
- Harvey 3%
- Marrero 2%
- Hammond 2%
- Kaplan 2%
- Scott 2%
- Livingston 2%
- Abbeville 2%
Before you call
A test is a scheduled job with a report at the end of it, not a repair. What the report has to show, and who it goes to, are on the pages above.
