| Quick facts | Answer |
|---|---|
| Cost range | Typically $90 to $652; some lists show $40 to $65 |
| Time | Varies by home - confirm in your quote |
| Who's qualified | A state certified backflow prevention tester with a current SC certification card |
Avondale: what's different here
Avondale is a West Ashley neighborhood just over 3 miles from Downtown Charleston, sitting west of the Ashley River. Its housing stock is largely 1950s-style homes, including mid-century bungalows and ranch-style houses. Streets are small and quiet, lined with landscaped lots, with St. Andrews Boulevard and Savannah Highway as the main thoroughfares. The neighborhood sees an average summer high of 87°F and an average winter low of 44°F, with no annual snowfall.
Who can legally do backflow testing in Avondale?
South Carolina DES requires all backflow testing to be done by a state certified backflow prevention tester. A certified tester holds an up-to-date certification card issued by the Department. Certification is earned after a proctored practical exam and a written exam.
How often is backflow tester certification renewed?
South Carolina tester certification must be renewed every 3 years. Recertification requires a written exam plus wet-lab testing of a double check valve assembly, a pressure vacuum breaker, and a reduced pressure principle assembly. Testers must also have their gauge equipment certified or calibrated annually.
Why does flooding matter for backflow testing in Avondale?
Avondale has a moderate flood risk during big storms, and flooding can affect outdoor plumbing and irrigation backflow assemblies. With about 44 inches of annual precipitation, exposed devices may need extra attention. Ask the pro to check the assembly after any major storm.
What do Charleston-area price lists show for backflow testing?
One Charleston cost index shows published annual test prices commonly fall between $25 and $179 per assembly, with utilities that self-test charging $25 to $99. One Charleston pricing page lists a residential subscription at $55 that includes test submission to the utility department and an annual reminder. Ask the pro what their price includes before booking.
What to do next
- Check that the tester holds a current South Carolina backflow prevention assembly tester certification card issued by the Department.
- Verify the device itself is on the state approved list of backflow prevention assemblies.
- Ask for a written quote that states the price for your device type - residential irrigation testing is listed at $40 in most Charleston areas, while DCVA/RPZ devices are listed at $65.
- Confirm the tester's gauge equipment has been certified or calibrated within the past year.
- 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.
