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Backflow Testing Services in Radnor, Pennsylvania

Finding a reliable backflow testing professional in Radnor, Pennsylvania is essential for maintaining a safe water supply and staying in compliance with local regulations. Our directory lists 26 backflow testing companies serving Radnor and surrounding communities including Wayne, Norristown, Drexel Hill.

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 Radnor area.

Most water authorities in Pennsylvania 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 Radnor 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.

26 listed providers

Services:
Masciantonio Plumbing & Heating backflow testing
Testing Verified
4 mi

Masciantonio Plumbing & Heating

4.5(67)

Testing Verified · Conshohocken, PA · 4 mi

Backflow Testing
Website
TG Backflow Solutions backflow testing
Testing Verified
4 mi

TG Backflow Solutions

5.0(6)

Testing Verified · Devon, PA · 4 mi

Backflow TestingPreventer InstallationFree Estimates
Website
Walsh Brothers Plumbing and Mechanical Services, Inc. backflow testing
6 mi

Walsh Brothers Plumbing and Mechanical Services, Inc.

4.9(394)

Broomall, PA · 6 mi

Emergency ServiceFree Estimates
Website
WM Henderson Heating, Cooling, Plumbing, & Electrical Inc. backflow testing
6 mi

WM Henderson Heating, Cooling, Plumbing, & Electrical Inc.

4.8(3,296)

Broomall, PA · 6 mi

Preventer Repair
Website
McLoughlin Service Experts backflow testing
7 mi

McLoughlin Service Experts

4.8(768)

Upper Darby Township, PA · 7 mi

ResidentialEmergency Service
Website
Extreme Plumbing & Heating Corp. backflow testing
7 mi

Extreme Plumbing & Heating Corp.

4.9(67)

Philadelphia, PA · 7 mi

Emergency Service
Website
P&A Plumbing & Drain Cleaning backflow testing
Testing Verified
8 mi

P&A Plumbing & Drain Cleaning

5.0(205)

Testing Verified · Drexel Hill, PA · 8 mi

Backflow TestingEmergency ServiceSame Day Service
Website
John M Szollose Plumbing & Heating backflow testing
8 mi

John M Szollose Plumbing & Heating

4.4(14)

Philadelphia, PA · 8 mi

Free Estimates
Website
Russell Brothers Inc backflow testing
11 mi

Russell Brothers Inc

5.0(203)

Glenside, PA · 11 mi

Preventer InstallationEmergency ServiceFree Estimates
Website
Ingram's Plumbing and Heating backflow testing
Testing Verified
11 mi

Ingram's Plumbing and Heating

4.0(59)

Testing Verified · Philadelphia, PA · 11 mi

RPZ TestingCommercialFree Estimates
Website
BM Consulting Services, Inc. backflow testing
12 mi

BM Consulting Services, Inc.

4.2(65)

Philadelphia, PA · 12 mi

Website
Master Plumbers USA backflow testing
12 mi

Master Plumbers USA

4.9(34)

Philadelphia, PA · 12 mi

CommercialResidentialEmergency Service
Website
Joseph Giannone Plumbing & Heating backflow testing
Testing Verified
13 mi

Joseph Giannone Plumbing & Heating

4.6(185)

Testing Verified · Philadelphia, PA · 13 mi

Backflow TestingPreventer InstallationEmergency Service
Website
PC
Testing Verified
13 mi

Philadelphia Commercial Backflow Services

1.0(1)

Testing Verified · Philadelphia, PA · 13 mi

Backflow TestingCommercial
Website
Schweizer Fire Protection Co Inc backflow testing
Testing Verified
13 mi

Schweizer Fire Protection Co Inc

No reviews yet

Testing Verified · Philadelphia, PA · 13 mi

Emergency ServiceFree Estimates
Website
Edward Hughes & Son, Inc. backflow testing
13 mi

Edward Hughes & Son, Inc.

3.9(138)

Philadelphia, PA · 13 mi

Emergency ServiceFree Estimates
Website
PB
Testing Verified
13 mi

philly backflow

4.0(4)

Testing Verified · Philadelphia, PA · 13 mi

Backflow TestingCommercial
Website
TRI STATE BACKFLOW TESTING backflow testing
Testing Verified
14 mi

TRI STATE BACKFLOW TESTING

5.0(1)

Testing Verified · West Chester, PA · 14 mi

Backflow Testing
Website
Roto-Rooter Plumbing & Water Cleanup backflow testing
14 mi

Roto-Rooter Plumbing & Water Cleanup

4.8(3,759)

Philadelphia, PA · 14 mi

CommercialResidentialEmergency Service
Website
City Plumbing backflow testing
Testing Verified
14 mi

City Plumbing

4.7(320)

Testing Verified · Philadelphia, PA · 14 mi

Backflow TestingCommercialEmergency Service
Website
Done Right Plumbing & Heating backflow testing
Testing Verified
14 mi

Done Right Plumbing & Heating

4.9(179)

Testing Verified · Philadelphia, PA · 14 mi

Backflow TestingCommercialResidential
Website
Daniels Plumbing, Drain Cleaning , Sewer Repair of Philadelphia backflow testing
16 mi

Daniels Plumbing, Drain Cleaning , Sewer Repair of Philadelphia

4.7(500)

Philadelphia, PA · 16 mi

CommercialResidentialEmergency Service
Website
Ben Manis Plumbing LLC backflow testing
17 mi

Ben Manis Plumbing LLC

4.1(60)

Huntingdon Valley, PA · 17 mi

CommercialResidentialEmergency Service
Website
Plumber Phila backflow testing
Testing Verified
18 mi

Plumber Phila

5.0(34)

Testing Verified · Philadelphia, PA · 18 mi

Backflow TestingCommercialResidential
Website
Mallard Plumbing & Mechanical Inc. backflow testing
19 mi

Mallard Plumbing & Mechanical Inc.

4.9(487)

Warminster, PA · 19 mi

Preventer InstallationCommercialEmergency Service
Website
Daniel's plumbing drain cleaning and sewer repair of philadelphia backflow testing
19 mi

Daniel's plumbing drain cleaning and sewer repair of philadelphia

5.0(196)

Southampton, PA · 19 mi

CommercialResidentialEmergency Service
Website

Frequently Asked Questions About Backflow Testing in Radnor

Backflow testing in Radnor, Pennsylvania typically costs between $50 and $200 per device, depending on the type of backflow preventer and the complexity of the installation. RPZ assemblies generally cost more to test than double check valve assemblies. Contact providers listed above for current pricing in the Radnor area.

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 Radnor 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 Pennsylvania require cross-connection control programs for commercial properties and irrigation systems.

Many municipalities in Pennsylvania require annual backflow testing for commercial and residential properties with backflow prevention devices. Your local water authority in Radnor 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 Radnor 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.

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