| Quick facts | Answer |
|---|---|
| Cost range | Backflow repair or rebuild kit: $150–$400 |
| Time | Usually 20 to 30 minutes for a general residential test |
| Who's qualified | Must be a South Carolina state-certified backflow prevention tester |
What should I do today if my backflow test is due by 5 PM?
Call CHS Backflow at (843) 286-4721 right away and say your test is due today and the city will shut off water at 5 PM. A local pro will be connected to you to check same-day availability in West Ashley. Have your address and the backflow device location ready.
What should I verify before hiring a tester?
South Carolina requires all backflow testing to be performed by a state-certified backflow prevention tester. Ask the pro for proof of licence and insurance and confirm the tester's certification card is up to date. South Carolina certified tester certifications are valid for three years.
What happens if the device fails the test?
Any repair to a backflow prevention assembly must be made by a DHEC-certified backflow prevention assembly tester. Ask for a quote that separates the test fee from any repair cost. Repair or rebuild kits commonly run $150–$400.
Who must be notified if the assembly is shut down for testing?
South Carolina law says if a backflow assembly is shut down for testing, the appropriate people must be notified. This can include the fire department, fire marshal, customer or owner, building official, or insurance company. Ask your pro to confirm who needs notice.
What to do next
- Call the pro now and state that your backflow test must be completed before the 5 PM shutoff.
- Ask the pro to show a current South Carolina backflow tester certification card before the test starts.
- Request a written quote that separates the test fee from any repair, which commonly runs $150–$400.
- Ask who will be notified under South Carolina law if the assembly is shut down for testing.
- 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.



