North Charleston, SC

How much does backflow preventer testing cost in North Charleston, SC?

Short answer

Backflow preventer testing in North Charleston, SC, typically ranges from $90 to $652. Call or text (843) 286-4721: CHS Backflow is a free referral service that connects you with a vetted local pro in North Charleston. South Carolina pricing guides also list costs between $50 and $250 per assembly for these tests.

Updated October 24, 2026 2 min readLeer en español

Quick answer

CHS Backflow is a free referral service for backflow testing in Charleston, SC: call or text (843) 286-4721 (our assistant answers 24/7 in English or Spanish; callbacks Mon–Fri, 8am–5pm ET) and a vetted local pro calls back within the hour during business hours; backflow repair or rebuild kit: typically $150–$400; serving Charleston, Mount Pleasant, North Charleston, Summerville, James Island, Johns Island.

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Quick facts Answer
Cost range $90 to $652
Time Varies by home - confirm in your quote
Who's qualified Must be performed by a state-certified backflow prevention tester

North Charleston, SC: what's different here

North Charleston is situated in Charleston County, SC. The area has a median home construction year of 1978, with many homes built between 1970 and 1979. Many local homes feature slab foundations or crawl-space construction. The local housing profile indicates a mix of older and newer residential structures.

South Carolina Backflow Testing Regulations

South Carolina requires all backflow testing to be conducted by a state-certified backflow prevention tester. This certification is earned after passing both a proctored practical exam and a written exam. The regulations mandate that each assembly be tested at least once annually by a certified tester.

Understanding Backflow Preventer Testing in Charleston

The South Carolina Code of Laws requires that backflow tests be conducted according to applicable NFPA standards. If repairs are needed following a test, they must be made by a DES-certified backflow prevention assembly tester. This ensures the integrity of the system is maintained after the inspection.

Certification and Maintenance of Testers

A South Carolina backflow prevention tester certification is valid for three years. During this time, the SCDES recertification study guide advises that test equipment and gauges must be certified or calibrated annually. This ensures the accuracy of the testing process.

Local Context for Backflow Preventer Testing

North Charleston is located within Charleston County, South Carolina. The area features a median home construction year of 1978, with many homes built between 1970 and 1979. Many local properties utilize slab foundations or crawl-space construction.

What to do next

  1. Verify the contractor holds a state-certified backflow prevention tester certification.
  2. Ask the pro for proof of licence and insurance.
  3. Confirm the test will be conducted in accordance with applicable NFPA standards.
  4. Determine if the device requires repair by a DES-certified backflow prevention assembly tester.
  5. 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.

Related answers

Back to CHS Backflow

Quick answers

How often must backflow testing occur?

South Carolina regulations require each assembly to be tested at least once annually by a certified tester.

How long is the certification process for testers?

The South Carolina backflow tester course is described as a four-day course.

Does the backflow tester certification expire?

South Carolina backflow tester certification expires every 3 years.

Where is North Charleston located?

North Charleston is located in Charleston County, South Carolina.

Backflow testing help in Tulsa

CHS Backflow is a free referral service connecting you with licensed, insured local backflow testers in Charleston and nearby areas. The pros we refer perform all work and may pay us a referral fee. We do not perform work or hold licenses. You pay no fee to us and may get other quotes.

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Send the form or call (843) 286-4721. We connect you with a Charleston-area contractor who quotes the job. Free, no obligation.

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