BackflowNear Test-Due Reminder

Backflow testing in St Peters, MO

121 backflow testing businesses work within 25 miles of St Peters, 5 of them based in town. Every one has testers on Missouri's certified backflow tester roster.

121 businesses within 25 miles
1 for-hire testers based in St Peters

Certified backflow testers near St Peters

Harvestowne Irrigation

100/100
✓ MO Certified Backflow Tester Verified #34-9317 ★ 4 (26 reviews) 12 certified testers Backflow Testing

326 Depot St, St Peters, MO 63376 · under 1 mile from St Peters

Call (636) 970-0208 Details Website

Verified Oct 2026 · Unclaimed listing

Metro Lawn Sprinklers

100/100
✓ MO Certified Backflow Tester Verified #34-9140 ★ 4.9 (851 reviews) 11 certified testers Backflow Testing

291 Indacom Dr, St Peters, MO 63376 · 1 mi from St Peters

Call (636) 936-8243 Details Website

Verified Oct 2026 · Unclaimed listing

Ozark Mechanical

100/100
✓ MO Certified Backflow Tester Verified #13-14144 ★ 5 (193 reviews) 2 certified testers Backflow Testing

2108 Parkway Dr, St Peters, MO 63376 · 3 mi from St Peters

Call (636) 317-1234 Details Website

Verified Oct 2026 · Unclaimed listing

GDS Irrigation

100/100
✓ MO Certified Backflow Tester Verified #43-8400 ★ 4.7 (50 reviews) 3 certified testers Backflow Testing

200 Clearview Dr, St Charles, MO 63303 · 4 mi from St Peters

Call (636) 724-8191 Details Website

Verified Oct 2026 · Unclaimed listing

Wiegmann Associates

100/100
✓ MO Certified Backflow Tester Verified #13-11576 ★ 4 (8 reviews) 6 certified testers Backflow Testing

650 Fountain Lakes Blvd, St Charles, MO 63301 · 5 mi from St Peters

Call (636) 940-1056 Details Website

Verified Oct 2026 · Unclaimed listing

Byrd Plumbing

100/100
✓ MO Certified Backflow Tester Verified #34-10742 ★ 4.3 (23 reviews) 2 certified testers Backflow Testing

500 Little Hills Industrial Blvd, St Charles, MO 63301 · 8 mi from St Peters

Call (314) 867-5696 Details Website

Verified Oct 2026 · Unclaimed listing

Jarrell Mechanical

100/100
✓ MO Certified Backflow Tester Verified #13-13423 ★ 3.7 (25 reviews) 42 certified testers Backflow Testing

4208 Rider Trail N, Earth City, MO 63045 · 8 mi from St Peters

Call (314) 291-0100 Details Website

Verified Oct 2026 · Unclaimed listing

KAMS Mechanical

100/100
✓ MO Certified Backflow Tester Verified #06-7692 2 certified testers Backflow Testing

14515 Missouri Bottom Rd, Bridgeton, MO 63044 · 8 mi from St Peters

Call (314) 475-1001 Details Website

Verified Oct 2026 · Unclaimed listing

Chesterfield Irrigation

100/100
✓ MO Certified Backflow Tester Verified #34-10712 ★ 3.5 (33 reviews) 4 certified testers Backflow Testing

727 Spirit of Saint Louis Blvd, Chesterfield, MO 63005 · 9 mi from St Peters

Call (636) 537-9795 Details Website

Verified Oct 2026 · Unclaimed listing

Builders Bloc

100/100
✓ MO Certified Backflow Tester Verified #06-1893 ★ 3.4 (18 reviews) 2 certified testers Backflow Testing

285 Chesterfield Business Pkwy, Chesterfield, MO 63005 · 9 mi from St Peters

Call (314) 336-0200 Details Website

Verified Oct 2026 · Unclaimed listing

Chesterfield Service

100/100
✓ MO Certified Backflow Tester Verified #32-9598 ★ 4.9 (4483 reviews) 2 certified testers Backflow Testing

245 Chesterfield Industrial Blvd, Chesterfield, MO 63005 · 9 mi from St Peters

Call (636) 532-5841 Details Website

Verified Oct 2026 · Unclaimed listing

Hauser Mechanical

90/100
✓ MO Certified Backflow Tester Verified #13-10923 ★ 3.2 (9 reviews) 2 certified testers Backflow Testing

1430 Mid Rivers Industrial Dr, St Peters, MO 63376 · under 1 mile from St Peters

Call (636) 970-4416 Details

Verified Oct 2026 · Unclaimed listing

Out Door Décor

90/100
✓ MO Certified Backflow Tester Verified #34-2777 ★ 5 (17 reviews) Backflow Testing

553 Kimberly Ln, St Peters, MO 63376 · 2 mi from St Peters

Call (636) 697-2311 Details Website

Verified Oct 2026 · Unclaimed listing

S&S Plumbing Systems

90/100
✓ MO Certified Backflow Tester Verified #06-9195 ★ 5 (72 reviews) 2 certified testers Backflow Testing

143 S 5th St, St Charles, MO 63301 · 7 mi from St Peters

Call (636) 696-6661 Details Website

Verified Oct 2026 · Unclaimed listing

Roden Landscaping

90/100
✓ MO Certified Backflow Tester Verified #34-8418 ★ 4.6 (7 reviews) 2 certified testers Backflow Testing

7800 State Rte N, O'Fallon, MO 63368 · 8 mi from St Peters

Call (636) 561-3947 Details Website

Verified Oct 2026 · Unclaimed listing

Hoffman Borthers

90/100
✓ MO Certified Backflow Tester Verified #32-9660 ★ 4.8 (608 reviews) Backflow Testing

3700 Rider Trail S Ste 100, Earth City, MO 63045 · 8 mi from St Peters

Call (314) 274-3978 Details Website

Verified Oct 2026 · Unclaimed listing

Omega Plumbing

90/100
✓ MO Certified Backflow Tester Verified #06-4317 4 certified testers Backflow Testing

4132 Shoreline Dr # E, Earth City, MO 63045 · 9 mi from St Peters

Call (314) 291-2003 Details

Verified Oct 2026 · Unclaimed listing

Henrys Irrigation

80/100
✓ MO Certified Backflow Tester Verified #32-2826 ★ 5 (11 reviews) Backflow Testing

110 River Grv Ct, O'Fallon, MO 63366 · 9 mi from St Peters

Call (636) 466-5324 Details

Verified Oct 2026 · Unclaimed listing

Finch Plumbing

100/100
✓ MO Certified Backflow Tester Verified #06-9187 ★ 4.7 (3 reviews) 8 certified testers Backflow Testing

3377 Hollenberg Dr, Bridgeton, MO 63044 · 10 mi from St Peters

Call (314) 291-4300 Details Website

Verified Oct 2026 · Unclaimed listing

Best Lawn Care

100/100
✓ MO Certified Backflow Tester Verified #34-11683 ★ 4.9 (979 reviews) 3 certified testers Backflow Testing

209 Josephville Rd, Wentzville, MO 63385 · 10 mi from St Peters

Call (636) 200-3000 Details Website

Verified Oct 2026 · Unclaimed listing

Pro Outdoor

100/100
✓ MO Certified Backflow Tester Verified #34-12921 ★ 4.7 (756 reviews) 18 certified testers Backflow Testing

304 TCW Ct, Lake St Louis, MO 63367 · 10 mi from St Peters

Call (636) 695-7800 Details Website

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 Peters 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 Peters

Who can test a backflow preventer in St Peters?

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 Peters?

1 testers who test for the public list St Peters as their base on Missouri's roster, and 121 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.

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