| Quick facts | Answer |
|---|---|
| Cost range | $50-$200 per device; some irrigation tests $40 |
| Time | Varies by device - confirm timing in your quote |
| Who's qualified | State-certified backflow prevention tester on Charleston Water System's Approved Tester List |
Wagener Terrace: what's different here
Wagener Terrace sits on the Charleston peninsula, bounded by Hampton Park and The Citadel on the south and the Ashley River on the west. It is a dense residential neighborhood with 1,087 homes and 66% owner-occupancy. Mt. Pleasant Street marks the northern edge and Rutledge Avenue the eastern edge. That mix of older homes means irrigation systems and other assemblies needing annual testing are common.
Who can perform backflow testing in Wagener Terrace?
South Carolina requires all backflow testing to be done by a state-certified backflow prevention tester. Charleston Water System only accepts results from testers on its Approved Backflow Tester List. Certification requires passing both a proctored practical exam and a written exam.
What does backflow testing cost by device type?
One Charleston-area company lists residential irrigation backflow testing at $40, with DCVA and RPZ devices at $65. Extra fees apply for limited-access devices such as buried or vault-mounted units. A broader Charleston pricing guide puts typical testing at $50 to $200 per device.
How often is backflow testing required in Charleston?
Charleston Water System requires annual testing. All reports must be filed with the applicable filing fees through the utility's third-party reporting process. Many local providers submit test results to the utility department for you.
How do backflow testers stay certified in South Carolina?
A certified tester's license expires every 3 years and must be renewed. South Carolina recognizes 4 tester types: General Tester, Limited Tester, Inspector Tester, and Manufacturer's Agent. A 2026 certification class is scheduled at the North Charleston Convention Center, June 9-12, 2026.
What to do next
- Find out which assembly you have - a DCVA, RPZ, or irrigation device - since pricing differs by type.
- Ask the pro for their state-certified backflow prevention tester card and confirm they are on Charleston Water System's Approved Backflow Tester List.
- Request a written quote that states the per-device price and any extra fee for buried or vault-mounted units.
- Confirm the tester will file your report with the utility through its third-party reporting process with the required fees.
- Call (843) 286-4721 or email [email protected] for a free quote from a licensed, insured local backflow tester.
CHS Backflow is a free referral service: an independent contractor does the work and may pay us a referral fee. You never pay us anything.
