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Backflow Testing Services in North Charleston, South Carolina

Finding a reliable backflow testing professional in North Charleston, South Carolina is essential for maintaining a safe water supply and staying in compliance with local regulations. Our directory lists 15 backflow testing companies serving North Charleston and surrounding communities including Charleston, Mount Pleasant, Goose Creek.

Whether you need annual backflow testing, RPZ (Reduced Pressure Zone) valve inspection, or cross-connection control services, the providers listed below offer professional testing services for both residential and commercial properties throughout the North Charleston area.

Most water authorities in South Carolina require annual testing and reporting for all backflow prevention assemblies. A certified backflow tester will inspect your devices, perform the required differential pressure tests, and file compliance reports with your local water authority.

Browse the listings below to compare ratings, read customer reviews, and contact backflow testing professionals near North Charleston directly. Use the filters above to narrow results by rating, review count, or specific services like RPZ testing and preventer installation.

Data source: Google Maps. Always verify licensing with your local water authority.

15 listed providers

Services:
PlumbX backflow testing
3 mi

PlumbX

5.0(39)

North Charleston, SC · 3 mi

CommercialEmergency ServiceSame Day Service
Website
Swell Guy Plumbing Co backflow testing
Testing Verified
4 mi

Swell Guy Plumbing Co

4.9(35)

Testing Verified · Hanahan, SC · 4 mi

Backflow TestingEmergency Service
Website
Ashley Plumbing Co backflow testing
Testing Verified
5 mi

Ashley Plumbing Co

5.0(7)

Testing Verified · Charleston, SC · 5 mi

Backflow TestingPreventer InstallationCommercial
Website
Pardee Service Experts backflow testing
5 mi

Pardee Service Experts

4.9(6,366)

Charleston, SC · 5 mi

ResidentialEmergency Service
Website
Charleston Water System backflow testing
5 mi

Charleston Water System

1.7(219)

Charleston, SC · 5 mi

Emergency Service
Website
The Hiller Companies backflow testing
Testing Verified
5 mi

The Hiller Companies

3.0(10)

Testing Verified · Charleston, SC · 5 mi

Backflow Testing
Website
Rooter Man Plumbing backflow testing
Testing Verified
6 mi

Rooter Man Plumbing

4.9(572)

Testing Verified · Charleston, SC · 6 mi

Backflow TestingCommercialEmergency Service
Website
Blitch Plumbing backflow testing
Testing Verified
7 mi

Blitch Plumbing

4.3(162)

Testing Verified · Charleston, SC · 7 mi

Backflow TestingPreventer InstallationPreventer Repair
Website
Mr. Rooter Plumbing of Greater Charleston backflow testing
8 mi

Mr. Rooter Plumbing of Greater Charleston

4.7(960)

North Charleston, SC · 8 mi

Emergency Service
Website
Charleston Irrigation and Backflow, llc backflow testing
Testing Verified
8 mi

Charleston Irrigation and Backflow, llc

No reviews yet

Testing Verified · Mt Pleasant, SC · 8 mi

Backflow TestingPreventer InstallationSprinkler Backflow
Website
Grace Plumbing and Water Filtration LLC backflow testing
8 mi

Grace Plumbing and Water Filtration LLC

5.0(33)

Mt Pleasant, SC · 8 mi

CommercialResidentialEmergency Service
Website
Purpose Plumbing backflow testing
10 mi

Purpose Plumbing

4.4(327)

Charleston, SC · 10 mi

CommercialResidentialEmergency Service
Website
DI
Testing Verified
11 mi

Daniel Island Backflow

5.0(5)

Testing Verified · Mt Pleasant, SC · 11 mi

Backflow Testing
Website
BHM Backflow backflow testing
11 mi

BHM Backflow

5.0(6)

Goose Creek, SC · 11 mi

Website
Absolute Plumbing & Boiler backflow testing
Testing Verified
18 mi

Absolute Plumbing & Boiler

4.9(156)

Testing Verified · Summerville, SC · 18 mi

Backflow TestingCommercialResidential
Website

Frequently Asked Questions About Backflow Testing in North Charleston

If a backflow preventer fails its annual test, the certified tester will diagnose the issue — often a worn check valve, damaged disc, or fouled relief valve. Most testers in North Charleston can repair the device on site and re-test it the same day. Your water authority may require the passing report within a set deadline.

Cross-connection control prevents contaminated water from flowing backwards into the clean water supply. Backflow prevention devices are installed at cross-connection points to protect public health. Regular testing ensures these devices function properly. Many municipalities in South Carolina require cross-connection control programs for commercial properties and irrigation systems.

Many municipalities in South Carolina require annual backflow testing for commercial and residential properties with backflow prevention devices. Your local water authority in North Charleston can confirm the exact testing schedule and deadlines for your area. Failing to test on time may result in fines or water service interruption.

Some certified testers near North Charleston offer same-day or emergency scheduling for urgent situations such as a failed device, a compliance deadline, or a new construction inspection. Check individual provider listings above for availability, or request a quote to find a tester who can accommodate your schedule.

Look for testers with active state certification, strong Google reviews, and experience with your type of backflow preventer (PVB, DCVA, or RPZ). Ask whether they file compliance reports with your local water authority and request a written estimate before scheduling. Our directory lists testers near North Charleston with real customer reviews.

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