| Quick facts | Answer |
|---|---|
| Cost range | Roughly $40-$125 depending on device size and service scope |
| Time | A single test visit; timing varies by tester |
| Who's qualified | A state-certified backflow prevention tester with a current certification card |
What drives the price of irrigation backflow testing in Charleston?
Device size and service scope matter most. One Charleston-area provider charges about $40 per residential irrigation device, while another lists $85 for a 1.5-inch-and-smaller test and $125 for some larger or added-service tiers. Get quotes that state device size and what the price covers.
Who can legally test backflow devices in Charleston, SC?
South Carolina requires all backflow testing to be done by a state-certified backflow prevention tester. The state defines a certified tester as someone holding an up-to-date certification card issued by the Department. Ask any tester you hire for proof of a current card.
How does Charleston's rainfall affect irrigation backflow testing?
Charleston County averages about 45.30 inches of rain per year, with August the wettest month at 6.97 inches on average. Heavy rain and heavy irrigation use make annual testing important for local systems. Wettest months can also mean busier testers, so schedule early.
How do testers become certified in South Carolina?
The state certification course is a four-day class, followed by a proctored practical exam and a written exam. Certification is valid for 3 years and must be renewed to stay valid. The state lists a $150 processing fee for tester certification.
What to do next
- Confirm the size of your irrigation backflow assembly so your quote matches the $85 1.5-inch-and-smaller tier or a larger tier.
- Ask each tester for their state-issued backflow prevention assembly tester certification card and check it is current.
- Get a written quote that states the price per device, whether results filing is included, and the service scope.
- Schedule the test before Charleston's wettest month, August, when irrigation systems see heavy use.
- 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.
