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Backflow Testing in South Carolina
Backflow Testing across South Carolina: the 418 ZIP codes and 274 cities we route calls in, and who licenses plumbers in the state.
Free to homeowners in South Carolina — the contractor pays us for the introduction, you never do.
Who has to test
Our backflow testing coverage in South Carolina runs to 418 ZIP codes in 274 cities. In a state that mixes large systems with small ones, a testing duty that is routine on one side of a county line can be unknown on the other, and the deadline a premises is held to is whichever its own water supplier sets.
Source: coverage area as published by our call partner; place and county names from the US Census Bureau.
We route backflow testing calls in 418 ZIP codes across 274 South Carolina cities, in 41 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 South Carolina
South Carolina licenses are issued by the South Carolina Residential Builders Commission, Department of Labor, Licensing and Regulation, which publishes a public search you can use before work begins. South Carolina requires a residential plumber license for work over $500, according to the Commission.
18 of the 40 South Carolina counties we cover, from the top of the alphabet
- Abbeville County 5 ZIP codes
Abbeville, Calhoun Falls, Donalds, Due West, Lowndesville - Aiken County 22 ZIP codes
Aiken, North Augusta, Bath, Beech Island, Gloverville, Graniteville, Jackson, Langley, Monetta, New Ellenton, Ridge Spring, Salley, Wagener, Warrenville and 1 more - Anderson County 14 ZIP codes
Anderson, Belton, Honea Path, Iva, Pelzer, Pendleton, Starr, Townville, Williamston - Bamberg County 1 ZIP code
Bamberg - Barnwell County 1 ZIP code
Barnwell - Beaufort County 18 ZIP codes
Beaufort, Hilton Head Island, Bluffton, Daufuskie Island, Okatie, Parris Island, Port Royal, Saint Helena Island, Seabrook, Sheldon - Berkeley County 12 ZIP codes
Bonneau, Cordesville, Cross, Goose Creek, Hanahan, Huger, Jamestown, Ladson, Moncks Corner, Pineville, Pinopolis, Saint Stephen - Calhoun County 2 ZIP codes
Cameron, Saint Matthews - Charleston County 36 ZIP codes
Charleston, North Charleston, Mount Pleasant, Johns Island, Adams Run, Awendaw, Charleston AFB, Folly Beach, Hollywood, Isle of Palms, McClellanville, Ravenel, Sullivans Island, Wadmalaw Island - Cherokee County 3 ZIP codes
Gaffney, Blacksburg - Chester County 7 ZIP codes
Carlisle, Chester, Edgemoor, Fort Lawn, Great Falls, Lando, Richburg - Chesterfield County 4 ZIP codes
Jefferson, Mount Croghan, Pageland, Ruby - Clarendon County 2 ZIP codes
Manning, Summerton - Colleton County 9 ZIP codes
Cottageville, Edisto Island, Green Pond, Jacksonboro, Round O, Ruffin, Smoaks, Walterboro, Williams - Dorchester County 9 ZIP codes
Summerville, Dorchester, Harleyville, Reevesville, Ridgeville, Saint George - Edgefield County 2 ZIP codes
Clarks Hill, Trenton - Fairfield County 4 ZIP codes
Blackstock, Jenkinsville, Ridgeway, Winnsboro - Georgetown County 2 ZIP codes
Georgetown, Pawleys Island
22 more South Carolina counties are inside the coverage area and are not listed here. If your ZIP code is in South Carolina, the call reaches a contractor.
What that coverage looks like
The 41 counties in our South Carolina footprint are served by many separate water suppliers, and each one decides which premises must test and how often. Lexington County, with 49 covered ZIP codes, is the largest single block of them; Columbia alone holds 34.
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 South Carolina city we route in
49 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.
- North Myrtle Beach 34%
- Hilton Head Island 20%
- Myrtle Beach 14%
- Charleston 14%
- Greenville 13%
- Ladson 13%
- Clemson 13%
- Mount Pleasant 11%
- Columbia 10%
- Rock Hill 9%
- Cayce 8%
- Fort Mill 7%
- Little River 7%
- Duncan 7%
- Murrells Inlet 7%
- Spartanburg 7%
- Pawleys Island 6%
- Irmo 5%
- North Charleston 5%
- Clover 5%
- West Columbia 5%
- Ridgeland 5%
- Summerville 5%
- Simpsonville 4%
- Central 4%
- Clinton 4%
- Johns Island 4%
- Bluffton 4%
- Mauldin 4%
- Greer 4%
- Lexington 3%
- Camden 3%
- Beaufort 3%
- Fountain Inn 3%
- Anderson 3%
- Hanahan 3%
- Boiling Springs 3%
- Manning 3%
- Greenwood 3%
- Easley 3%
- Seneca 3%
- Taylors 3%
- Lugoff 3%
- Sumter 3%
- Travelers Rest 2%
- Goose Creek 2%
- Wellford 2%
- North Augusta 2%
- Lancaster 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.
