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Backflow testing in St Clair, MO

17 backflow testing businesses work within 25 miles of St Clair, 3 of them based in town. Every one has testers on Missouri's certified backflow tester roster.

17 businesses within 25 miles

Certified backflow testers near St Clair

Bob's Plumbing Co

90/100
✓ MO Certified Backflow Tester Verified #32-14509 ★ 4.4 (29 reviews) Backflow Testing

487 Pelton Trails, St Clair, MO 63077 · under 1 mile from St Clair

Call (636) 629-3979 Details Website

Verified Oct 2026 · Unclaimed listing

Plumb Wizards

80/100
✓ MO Certified Backflow Tester Verified #32-14512 ★ 4.8 (64 reviews) Backflow Testing

776 St Louis Inn Rd, St Clair, MO 63077 · 5 mi from St Clair

Call (636) 364-8465 Details

Verified Oct 2026 · Unclaimed listing

Skouby Brother's Plumbing

90/100
✓ MO Certified Backflow Tester Verified #06-4547 ★ 4.8 (16 reviews) 3 certified testers Backflow Testing

1320 W 5th St C, Washington, MO 63090 · 15 mi from St Clair

Call (636) 390-2500 Details

Verified Oct 2026 · Unclaimed listing

FDF Plumbing

100/100
✓ MO Certified Backflow Tester Verified #06-3396 2 certified testers Backflow Testing

320 Cahoon Dr, Eureka, MO 63025 · 22 mi from St Clair

Call (636) 492-3220 Details Website

Verified Oct 2026 · Unclaimed listing

E&M Plumbing

100/100
✓ MO Certified Backflow Tester Verified #06-0062 ★ 4.6 (47 reviews) 5 certified testers Backflow Testing

101 Dreyer Ave, Eureka, MO 63025 · 22 mi from St Clair

Call (636) 938-1311 Details Website

Verified Oct 2026 · Unclaimed listing

Eureka Plumbing

90/100
✓ MO Certified Backflow Tester Verified #32-13605 ★ 4.9 (86 reviews) Backflow Testing

347 Eureka Rd, Eureka, MO 63025 · 22 mi from St Clair

Call (314) 330-3157 Details Website

Verified Oct 2026 · Unclaimed listing

KCJ Plumbing

80/100
✓ MO Certified Backflow Tester Verified #32-9663 ★ 4.2 (12 reviews) Backflow Testing

810 Top Notch Ln, Eureka, MO 63025 · 22 mi from St Clair

Call (314) 229-9895 Details

Verified Oct 2026 · Unclaimed listing

Best Outdoor LLC

80/100
✓ MO Certified Backflow Tester Verified #34-1701 Backflow Testing

18518 Melrose Rd, Wildwood, MO 63038 · 22 mi from St Clair

Call (636) 345-2378 Details

Verified Oct 2026 · Unclaimed listing

Hudson Plumbing

80/100
✓ MO Certified Backflow Tester Verified #32-10955 ★ 4 (8 reviews) 2 certified testers Backflow Testing

8880 Hillsboro-House Springs Rd, Hillsboro, MO 63050 · 23 mi from St Clair

Call (314) 435-0545 Details

Verified Oct 2026 · Unclaimed listing

Never miss your annual backflow test

Most water utilities require the backflow assembly on an irrigation, fire or commercial line to be tested every year, and a missed test can mean a shutoff notice. Tell us when yours was last tested in St Clair and we'll text you a month before it is due, with certified local testers ready to book.

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Backflow testing questions in St Clair

Who can test a backflow preventer in St Clair?

A tester certified by Missouri Department of Natural Resources. Your water utility may also keep its own list of testers allowed to file reports. Check the notice your utility sent.

How many certified backflow testers are based in St Clair?

Missouri's roster lists no for-hire testers based in St Clair itself, and 17 testing businesses are within 25 miles.

How often do I need a backflow test?

Most utilities require a test when the assembly is installed and then every year. Your utility's notice gives the due date and how the tester files the report.

Roster: Missouri Department of Natural Resources, read October 6, 2026.

Approved list: WaterOne approved backflow testers, WaterOne.

Approved list: City of Nixa certified backflow testers, City of Nixa.

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