| Quick facts | Answer |
|---|---|
| Cost range | About $90 to $652; certification often $150 to $250 |
| Time | Varies by home - confirm timing in your quote |
| Who's qualified | South Carolina DES-certified backflow prevention tester with current certification card |
Ansonborough: what's different here
Ansonborough is a historic neighborhood on the lower Charleston Peninsula, on the Cooper River side, convenient to Market Street and King Street. It sits within Charleston's historic district, about a 5-minute walk from Charleston City Market and 8 minutes from College of Charleston. Homes date as far back as the 1700s, and the area is more residential and shaded than other parts of the peninsula, with narrow streets and old townhouses. The humid coastal climate near the harbor shapes water pressure and corrosion considerations for backflow systems.
Why is annual backflow testing required in Ansonborough?
South Carolina backflow prevention assemblies are generally required to be tested annually. Charleston Water System requires annual testing and says all reports must be filed with the applicable filing fees through its third-party reporting process. A local pro can handle both the test and the paperwork.
Who is qualified to perform backflow testing in Ansonborough?
South Carolina DES says all backflow testing must be done by a state-certified backflow prevention tester holding an up-to-date tester certification card issued by the Department. Certification is earned after a proctored practical exam and a written exam, and must be renewed every 3 years. Ask the pro for proof of licence and insurance before the visit.
How do Ansonborough's historic homes affect backflow testing?
Ansonborough homes were built as early as the 1700s, so many houses are far older than modern plumbing systems. The neighborhood's narrow streets, cobblestone blocks and pocket gardens can affect access for service crews and equipment. Mention your device's location when you request a quote so the tester can plan accordingly.
Does Ansonborough's coastal location matter for backflow systems?
Ansonborough sits directly on the lower Charleston Peninsula near the Cooper River and harbor. The humid coastal climate influences water pressure and corrosion considerations in backflow systems. Coastal exposure is one reason annual recertification matters for peninsula homes.
Are smaller backflow testing jobs cheaper in Ansonborough?
Yes. A local Charleston-area service lists residential irrigation backflow device testing at $40 and DCVA/RPZ device testing at $65, below the broader $90 to $652 market range. Smaller service calls can cost less, so ask the pro to quote your specific device type.
What to do next
- Call CHS Backflow at (843) 286-4721 for a free referral to a licensed, insured local backflow tester.
- Ask the pro which device type you have - irrigation, DCVA or RPZ - since local rates run about $40 to $65 for these smaller jobs.
- Verify the tester holds a current South Carolina DES backflow prevention assembly tester certification card, renewed within the last 3 years.
- Request the quote include the annual test plus filing of the report through Charleston Water System's third-party reporting process with applicable 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.



