Backflow Testing in Iowa
Backflow Testing across Iowa: the 150 ZIP codes and 74 cities we route calls in, and who licenses plumbers in the state.
Free to homeowners in Iowa — the contractor pays us for the introduction, you never do.
Who has to test
Our backflow testing coverage in Iowa runs to 150 ZIP codes in 74 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 150 ZIP codes across 74 Iowa cities, in 18 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 Iowa
Iowa licenses are issued by the Iowa Plumbing and Mechanical Systems Board, which publishes a public search you can use before work begins.
Every Iowa county we cover
- Benton County 1 ZIP code
Walford - Buena Vista County 3 ZIP codes
Marathon, Rembrandt, Sioux Rapids - Cherokee County 1 ZIP code
Larrabee - Clay County 10 ZIP codes
Dickens, Everly, Fostoria, Gillett Grove, Greenville, Linn Grove, Peterson, Royal, Spencer, Webb - Dallas County 2 ZIP codes
Booneville, Waukee - Dickinson County 7 ZIP codes
Arnolds Park, Lake Park, Milford, Okoboji, Spirit Lake, Superior, Terril - Emmet County 5 ZIP codes
Armstrong, Dolliver, Estherville, Ringsted, Wallingford - Johnson County 11 ZIP codes
Iowa City, Coralville, North Liberty, Solon, Swisher, Tiffin - Jones County 1 ZIP code
Morley - Kossuth County 1 ZIP code
Fenton - Linn County 20 ZIP codes
Cedar Rapids, Ely, Fairfax, Hiawatha, Marion, Mount Vernon, Robins - O'Brien County 4 ZIP codes
Archer, Calumet, Sanborn, Sutherland - O'brien County 4 ZIP codes
Hartley, Paullina, Primghar, Sheldon - Osceola County 5 ZIP codes
Ashton, Harris, Melvin, Ocheyedan, Sibley - Palo Alto County 7 ZIP codes
Ayrshire, Curlew, Cylinder, Emmetsburg, Graettinger, Mallard, Ruthven - Pocahontas County 1 ZIP code
Laurens - Polk County 62 ZIP codes
Des Moines, Urbandale, West Des Moines, Clive, Windsor Heights - Warren County 2 ZIP codes
Cumming, Norwalk
What that coverage looks like
The 18 counties in our Iowa footprint are served by many separate water suppliers, and each one decides which premises must test and how often. Polk County, with 62 covered ZIP codes, is the largest single block of them; Des Moines alone holds 55.
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 Iowa city we route in
13 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 Des Moines 22%
- Des Moines 18%
- Coralville 17%
- Iowa City 17%
- Waukee 16%
- Urbandale 10%
- Clive 9%
- Cedar Rapids 9%
- Spencer 9%
- Marion 5%
- North Liberty 3%
- Norwalk 3%
- Spirit Lake 3%
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.
