Backflow Testing in Indiana
Backflow Testing across Indiana: the 642 ZIP codes and 470 cities we route calls in, and who licenses plumbers in the state.
Free to homeowners in Indiana — the contractor pays us for the introduction, you never do.
Who has to test
Our backflow testing coverage in Indiana runs to 642 ZIP codes in 470 cities. Where the covered places are many and small, the testing duty is set by whichever water utility serves the connection, so two houses a mile apart can sit under different rules and different annual deadlines.
Source: coverage area as published by our call partner; place and county names from the US Census Bureau.
We route backflow testing calls in 642 ZIP codes across 470 Indiana cities, in 76 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 Indiana
Indiana licenses are issued by the Indiana Plumbing Commission, Professional Licensing Agency, which publishes a public search you can use before work begins.
18 of the 76 Indiana counties we cover, from the top of the alphabet
- Adams County 4 ZIP codes
Berne, Decatur, Geneva, Monroe - Allen County 48 ZIP codes
Fort Wayne, Arcola, Grabill, Harlan, Hoagland, Huntertown, Leo, Monroeville, New Haven, Woodburn, Yoder - Bartholomew County 5 ZIP codes
Columbus, Elizabethtown, Hartsville, Hope - Benton County 1 ZIP code
Fowler - Blackford County 2 ZIP codes
Hartford City, Montpelier - Boone County 5 ZIP codes
Jamestown, Lebanon, Thorntown, Whitestown, Zionsville - Brown County 1 ZIP code
Nashville - Cass County 9 ZIP codes
Galveston, Logansport, Lucerne, New Waverly, Onward, Royal Center, Twelve Mile, Walton, Young America - Clark County 19 ZIP codes
Jeffersonville, Bethlehem, Borden, Charlestown, Clarksville, Henryville, Marysville, Memphis, Nabb, New Washington, Otisco, Sellersburg - Clinton County 7 ZIP codes
Colfax, Forest, Frankfort, Kirklin, Michigantown, Mulberry, Rossville - Crawford County 1 ZIP code
Milltown - DeKalb County 3 ZIP codes
Corunna, Saint Joe, Spencerville - Dearborn County 6 ZIP codes
Aurora, Dillsboro, Guilford, Lawrenceburg, Moores Hill, West Harrison - Decatur County 1 ZIP code
Greensburg - Dekalb County 5 ZIP codes
Ashley, Auburn, Butler, Garrett, Waterloo - Delaware County 14 ZIP codes
Muncie, Albany, Daleville, Eaton, Gaston, Oakville, Selma, Yorktown - Elkhart County 13 ZIP codes
Elkhart, Goshen, Bristol, Middlebury, Millersburg, Nappanee, New Paris, Wakarusa - Fayette County 1 ZIP code
Connersville
58 more Indiana counties are inside the coverage area and are not listed here. If your ZIP code is in Indiana, the call reaches a contractor.
What that coverage looks like
The 76 counties in our Indiana footprint are served by many separate water suppliers, and each one decides which premises must test and how often. Hamilton County, with 58 covered ZIP codes, is the largest single block of them; Indianapolis alone holds 44.
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 Indiana city we route in
81 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.
- West Lafayette 18%
- Clarksville 12%
- Bloomington 11%
- Merrillville 11%
- Mishawaka 9%
- Carmel 9%
- New Albany 9%
- Indianapolis 8%
- Whitestown 8%
- Fishers 8%
- Kendallville 7%
- East Chicago 7%
- Fort Wayne 7%
- South Bend 7%
- Vincennes 6%
- Elkhart 6%
- Jeffersonville 6%
- Columbus 6%
- Michigan City 6%
- Richmond 6%
- Hammond 6%
- Evansville 6%
- Highland 6%
- Griffith 6%
- Warsaw 5%
- Princeton 5%
- Gary 5%
- Auburn 5%
- Marion 5%
- Plainfield 5%
- Kokomo 5%
- Zionsville 5%
- Lafayette 5%
- Corydon 5%
- Greenwood 5%
- Goshen 5%
- Muncie 4%
- Huntington 4%
- Lawrenceburg 4%
- Nashville 4%
- Avon 4%
- Munster 4%
- Hobart 4%
- Beech Grove 4%
- New Castle 4%
- Greensburg 4%
- Angola 4%
- Shelbyville 4%
- Bluffton 4%
- Crawfordsville 4%
- Connersville 3%
- Anderson 3%
- Portage 3%
- Granger 3%
- Hartford City 3%
- Brownsburg 3%
- Greencastle 3%
- Charlestown 3%
- Franklin 3%
- La Porte 3%
- Peru 3%
- Chesterton 3%
- Scottsburg 3%
- Demotte 3%
- Frankfort 3%
- Noblesville 3%
- Newburgh 2%
- McCordsville 2%
- Valparaiso 2%
- Brookville 2%
- Rushville 2%
- Sellersburg 2%
- Logansport 2%
- Westfield 2%
- Mooresville 2%
- Schererville 2%
- Rensselaer 2%
- Aurora 2%
- Plymouth 2%
- Crown Point 2%
- Portland 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.
