| Quick facts | Answer |
|---|---|
| Cost range | $50-$250 per assembly; commercial RP often near top |
| Time | Varies by number of assemblies - confirm in your quote |
| Who's qualified | South Carolina state-certified backflow prevention tester |
Mount Pleasant, SC: what's different here
Mount Pleasant sits in Charleston County, South Carolina, about 9 miles and roughly 15 minutes by car from Charleston via main highway. Humid coastal conditions make cross-connection control and backflow prevention especially relevant in the area. Town offices are open Monday through Friday from 8:00 am to 4:30 pm.
Who can perform commercial backflow testing in Mount Pleasant?
South Carolina requires all backflow testing to be done by a state-certified backflow prevention tester holding an up-to-date certification card issued by the Department. Certification lasts 3 years and must be renewed. Ask the pro for proof of licence and insurance before work begins.
How often is commercial backflow testing required in Mount Pleasant?
South Carolina water authorities commonly require annual testing and reporting for backflow prevention assemblies. A certified tester inspects the device, performs the required differential pressure test, and files compliance reports with the local water authority.
What does tester certification involve?
Certification training runs 28 class hours over four days, with full attendance, a written exam, and a hands-on exit exam. The certification application carries a $150 processing fee. A Charleston-area class is scheduled June 9-12, 2026 at the North Charleston Convention Center.
What affects the price of commercial backflow testing?
Size and type of assembly drive the price. One Charleston-area provider lists $125 for commercial 3/4-inch to 1.5-inch assemblies. Larger commercial RP assemblies often fall near the top of the $50 to $250 range.
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 for an up-to-date South Carolina backflow prevention tester certification card, valid for 3 years.
- Request a per-assembly quote; confirm whether your commercial RP assembly falls near the $250 top of the range.
- Schedule annual testing and ask the tester to file the compliance report with your local water authority.
- 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.
