Backflow Testing in Virginia
Backflow Testing across Virginia: the 624 ZIP codes and 350 cities we route calls in, and who licenses plumbers in the state.
Free to homeowners in Virginia — the contractor pays us for the introduction, you never do.
Who has to test
Our backflow testing coverage in Virginia runs to 624 ZIP codes in 350 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 624 ZIP codes across 350 Virginia cities, in 79 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 Virginia
Virginia licenses are issued by the Virginia Department of Professional and Occupational Regulation, which publishes a public search you can use before work begins.
18 of the 67 Virginia counties we cover, from the top of the alphabet
- Accomack County 31 ZIP codes
Accomac, Assawoman, Atlantic, Belle Haven, Bloxom, Chincoteague Island, Greenbackville, Greenbush, Hacksneck, Hallwood, Harborton, Horntown, Keller, Mappsville and 17 more - Albemarle County 3 ZIP codes
Crozet, Earlysville, Keswick - Alexandria City County 21 ZIP codes
Alexandria - Amelia County 1 ZIP code
Amelia Court House - Arlington County 28 ZIP codes
Arlington, Fort Myer - Bristol City County 3 ZIP codes
Bristol - Buchanan County 1 ZIP code
Davenport - Charlottesville City County 6 ZIP codes
Charlottesville - Chesapeake City County 9 ZIP codes
Chesapeake - Chesterfield County 4 ZIP codes
Midlothian, Moseley - Clarke County 6 ZIP codes
Berryville, Bluemont, Boyce, Millwood, Paris, White Post - Culpeper County 7 ZIP codes
Boston, Brandy Station, Culpeper, Elkwood, Jeffersonton, Rixeyville, Stevensburg - Cumberland County 2 ZIP codes
Cartersville, Cumberland - Danville City County 3 ZIP codes
Danville - Emporia City County 1 ZIP code
Emporia - Fairfax County 64 ZIP codes
Fairfax, Springfield, Falls Church, McLean, Reston, Herndon, Vienna, Centreville, Chantilly, Burke, Lorton, Annandale, Clifton, Dunn Loring and 5 more - Fauquier County 15 ZIP codes
Marshall, Warrenton, Bealeton, Broad Run, Catlett, Delaplane, Goldvein, Hume, Markham, Midland, Remington, Sumerduck, The Plains - Floyd County 5 ZIP codes
Check, Copper Hill, Floyd, Indian Valley, Willis
49 more Virginia counties are inside the coverage area and are not listed here. If your ZIP code is in Virginia, the call reaches a contractor.
What that coverage looks like
The 79 counties in our Virginia footprint are served by many separate water suppliers, and each one decides which premises must test and how often. Fairfax County, with 85 covered ZIP codes, is the largest single block of them; Arlington alone holds 27.
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 Virginia city we route in
61 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.
- Arlington 50%
- McLean 35%
- Alexandria 28%
- Falls Church 26%
- Reston 26%
- Richmond 18%
- Herndon 17%
- Fairfax 16%
- Vienna 14%
- Norfolk 13%
- Charlottesville 11%
- Ashburn 11%
- Newport News 10%
- Petersburg 9%
- Crozet 9%
- Oakton 9%
- Henrico 8%
- Blacksburg 8%
- Sterling 8%
- Virginia Beach 8%
- Carrollton 8%
- Annandale 7%
- Woodbridge 7%
- Leesburg 7%
- Williamsburg 6%
- Portsmouth 6%
- Manassas 6%
- Springfield 6%
- Centreville 6%
- Lorton 6%
- Fredericksburg 6%
- Midlothian 6%
- Hampton 6%
- Winchester 5%
- Danville 5%
- Chesapeake 5%
- Suffolk 4%
- Glen Allen 4%
- Martinsville 4%
- Prince George 4%
- Woodstock 4%
- Berryville 4%
- Triangle 4%
- Bristol 4%
- Radford 4%
- Warrenton 3%
- South Boston 3%
- Gainesville 3%
- Luray 3%
- Ashland 3%
- Mechanicsville 3%
- Strasburg 3%
- Spotsylvania 3%
- Aldie 3%
- Bealeton 3%
- Stafford 2%
- Culpeper 2%
- Chantilly 2%
- Yorktown 2%
- Quinton 2%
- Sandston 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.
