Mount Pleasant, SC

How much does backflow preventer testing cost in Mount Pleasant, SC?

Short answer

Backflow preventer testing in Mount Pleasant, SC typically costs $50 to $250 per assembly. Call or text (843) 286-4721: CHS Backflow is a free referral service that connects you with a vetted local pro in Mount Pleasant. For residential jobs in the Charleston area, expect prices between $75 and $150.

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 $50 to $250 per assembly
Time Typically completed in a single appointment
Who's qualified Must be a state-certified backflow prevention tester

Mount Pleasant, SC: what's different here

Mount Pleasant is located in Charleston County, South Carolina. It is a low-lying coastal area characterized by sandy soils and shallow groundwater. These specific conditions can affect outdoor backflow assemblies and irrigation systems. The area is known for its unique coastal environment.

Pricing Variation for Charleston Backflow Testing

Backflow testing in the Charleston area can vary widely based on the device type and access required. Residential tests are often advertised between $40 and $85 per device. More complex commercial assemblies may push toward the higher end of the pricing spectrum.

Requirements for South Carolina Backflow Preventer Testing

South Carolina mandates that all backflow testing be performed by a state-certified backflow prevention tester. The state recognizes several certified tester categories, including General, Limited, Inspector, and Manufacturer's Agent.

Frequency of Backflow Preventer Testing

South Carolina requires annual testing of backflow prevention devices or assemblies. This ensures that the devices are functioning correctly and meeting all state safety standards.

What to do next

  1. Verify the local pro holds a state-certified backflow prevention tester certification card.
  2. Ask for a quote detailing if the test is for a standard device or a complex commercial assembly.
  3. Ensure the local pro confirms the standard annual inspection is completed in a single appointment.
  4. Confirm the tester is certified to handle the specific backflow preventer testing required for your assembly.
  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

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Quick answers

Who must perform backflow testing in South Carolina?

All backflow testing must be done by a state-certified backflow prevention tester. South Carolina DES defines this as a person holding an up-to-date certification card.

How long is a tester certification valid?

A South Carolina tester certification is valid for three years from the date of issue. Renewal is required after this period.

What is required for tester recertification?

Recertification requires a written exam with a passing score of 70%. It also requires practical testing of RP, DCVA, and PVB assemblies.

Where is Mount Pleasant located?

Mount Pleasant 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.

Want a real number for your home?

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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