| Quick facts | Answer |
|---|---|
| Cost range | Backflow repair or rebuild kit: $150–$400 |
| Time | Pro calls back within the hour, Mon–Fri 8am–5pm ET |
| Who's qualified | Must be a South Carolina DES-certified backflow tester |
What should I do today if my backflow valve failed inspection?
Call CHS Backflow at (843) 286-4721 to be connected with a licensed, insured local pro who handles failed valves. South Carolina requires repairs to a backflow assembly to be made by a DES-certified tester, so confirm the pro holds that certification before work starts.
What proof should I ask for when hiring a backflow pro?
Ask the pro for proof of licence and insurance and confirm their South Carolina DES tester certification. Under state rules, a certified tester's license expires every 3 years, so check the expiration date. Ask whether the quote covers the repair and the retest.
Does a repaired backflow assembly need to be retested?
Yes. South Carolina rules say an assembly must be tested immediately after any repair. Ask the pro to perform that test and provide the written results, which you can submit to the health department.
Why do Charleston-area backflow concerns matter right now?
Charleston has seen 13 inches of sea-level rise over the past 100 years, per NOAA tide gauge data cited by the city. Flooding and high tides can create cross-connection risks, so keeping valves tested and in working order matters.
What to do next
- Call the pro today and ask whether they can perform the repair and the immediate retest the same day.
- Verify the tester's South Carolina DES certification and check the expiration date, which is set every 3 years.
- Ask for a written quote that lists the repair parts, labor, and the post-repair test, with the total in the $150–$400 range.
- Request the completed test report in writing so you can file it with the health department.
- 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.
