| Quick facts | Answer |
|---|---|
| Cost range | Typically $86–$627; certification commonly $150–$250 |
| Time | The test itself is quick; ask your pro for timing |
| Who's qualified | A tester certified by South Carolina DHEC with a current certification card |
North Charleston, SC: what's different here
North Charleston sits in Charleston County, about 6 miles and roughly 10 minutes by car from Charleston via the main highway. It is home to the Charleston-area site for South Carolina backflow tester certification and recertification courses. Because sprinkler and irrigation systems fall under state cross-connection rules, certification work here must follow the same statewide tester requirements.
Who can perform sprinkler system backflow certification in North Charleston?
South Carolina law allows backflow tests on sprinkler systems to be performed by someone holding a current tester certification who has passed the state-approved backflow prevention assembly training seminar. State rules require all backflow testing to be done by a state-certified backflow prevention tester. Certification is issued by DHEC under the Division of Drinking Water Quality and Enforcement.
How often must a South Carolina backflow tester renew certification?
A South Carolina backflow prevention tester's certification expires every 3 years. Recertification requires a 4-day course, with a recertification fee of $150.00 per certification listed on the tester application. The recertification exam fee at state recertification stations is capped at $50.00.
What backflow assembly does a fire line sprinkler system need?
For fire line sprinkler systems in South Carolina, the minimum protection is an approved double check valve assembly, unless the system falls in a high-hazard category. State rules also require each backflow assembly to be tested by a certified tester after installation and before the customer uses it.
Where do North Charleston testers train and recertify?
A Charleston-area tester certification class is held at the North Charleston Convention Center, with upcoming dates listed as June 9-12, 2026. Certification is earned after a proctored practical exam and a written exam. North Charleston serves as the Charleston-area recertification site.
What to do next
- Confirm whether your sprinkler system needs a double check valve assembly test or another device test before requesting a quote.
- Ask the pro for proof of a current South Carolina backflow prevention assembly tester certification card, which renews every 3 years.
- Request an itemized quote comparing the local range of $40–$65 per device test against the $150–$250 certification benchmark.
- Verify the tester's certification status using the state's certification and recertification records rather than a verbal claim.
- 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.
