BackflowNear Test-Due Reminder

Backflow testing in Olivette, MO

125 backflow testing businesses work within 25 miles of Olivette, 2 of them based in town. Every one has testers on Missouri's certified backflow tester roster.

125 businesses within 25 miles
15 for-hire testers based in Olivette

Certified backflow testers near Olivette

Hydro Dynamics Corp.

100/100
✓ MO Certified Backflow Tester Verified #34-10436 ★ 4.5 (152 reviews) 12 certified testers Backflow Testing

9211 Olive Blvd, Olivette, MO 63132 · under 1 mile from Olivette

Call (314) 997-0064 Details Website

Verified Oct 2026 · Unclaimed listing

Murphy Co

100/100
✓ MO Certified Backflow Tester Verified #13-13424 ★ 4 (48 reviews) 66 certified testers Backflow Testing

1233 N Price Rd, St. Louis, MO 63132 · under 1 mile from Olivette

Call (314) 997-6600 Details Website

Verified Oct 2026 · Unclaimed listing

Emco Refrigeration

100/100
✓ MO Certified Backflow Tester Verified #13-1876 ★ 5 (3 reviews) 2 certified testers Backflow Testing

10200 Page Industrial Blvd, St. Louis, MO 63132 · 1 mi from Olivette

Call (314) 427-7477 Details Website

Verified Oct 2026 · Unclaimed listing

Classic Aire Care

100/100
✓ MO Certified Backflow Tester Verified #32-12616 ★ 4.9 (5615 reviews) 2 certified testers Backflow Testing

1276 N Warson Rd, St. Louis, MO 63132 · 2 mi from Olivette

Call (314) 352-1111 Details Website

Verified Oct 2026 · Unclaimed listing

Hoffman Brothers

100/100
✓ MO Certified Backflow Tester Verified #32-9608 ★ 4.9 (11981 reviews) 6 certified testers Backflow Testing

1025 Hanley Industrial Ct, Brentwood, MO 63144 · 4 mi from Olivette

Call (314) 664-3011 Details Website

Verified Oct 2026 · Unclaimed listing

Mechanical Solutions

100/100
✓ MO Certified Backflow Tester Verified #13-8149 ★ 4 (5 reviews) 5 certified testers Backflow Testing

2030 Altom Ct, St. Louis, MO 63146 · 4 mi from Olivette

Call (314) 342-1480 Details Website

Verified Oct 2026 · Unclaimed listing

Green Turf Irrigation

100/100
✓ MO Certified Backflow Tester Verified #34-9805 ★ 4.9 (584 reviews) 9 certified testers Backflow Testing

73 Millwell Ct, Maryland Heights, MO 63043 · 5 mi from Olivette

Call (314) 739-0410 Details Website

Verified Oct 2026 · Unclaimed listing

Deluca Plumbing

100/100
✓ MO Certified Backflow Tester Verified #06-10229 ★ 2.6 (10 reviews) 18 certified testers Backflow Testing

2466 Old Dorsett Rd, Maryland Heights, MO 63043 · 5 mi from Olivette

Call (314) 427-5551 Details Website

Verified Oct 2026 · Unclaimed listing

Linek Plumbing

100/100
✓ MO Certified Backflow Tester Verified #06-10548 ★ 4.7 (162 reviews) 14 certified testers Backflow Testing

24 Kirkham Industrial Ct, Webster Groves, MO 63119 · 5 mi from Olivette

Call (314) 962-0956 Details Website

Verified Oct 2026 · Unclaimed listing

Peters Eichler

100/100
✓ MO Certified Backflow Tester Verified #13-8326 ★ 4.1 (7 reviews) 6 certified testers Backflow Testing

3115 Sutton Blvd, St. Louis, MO 63143 · 5 mi from Olivette

Call (314) 647-4023 Details Website

Verified Oct 2026 · Unclaimed listing

Maplewood Plumbing

100/100
✓ MO Certified Backflow Tester Verified #32-11793 ★ 4.8 (1815 reviews) 2 certified testers Backflow Testing

2725 Watson Rd, St. Louis, MO 63139 · 6 mi from Olivette

Call (314) 645-6350 Details Website

Verified Oct 2026 · Unclaimed listing

GMP Plumbing

100/100
✓ MO Certified Backflow Tester Verified #32-12648 ★ 4.7 (16 reviews) 2 certified testers Backflow Testing

4950 Bischoff Ave, St. Louis, MO 63110 · 7 mi from Olivette

Call (636) 464-2221 Details Website

Verified Oct 2026 · Unclaimed listing

L. Grasse & Assoc

100/100
✓ MO Certified Backflow Tester Verified #06-9606 ★ 4.3 (6 reviews) 6 certified testers Backflow Testing

1940 S Kingshighway Blvd, St. Louis, MO 63110 · 7 mi from Olivette

Call (314) 771-3244 Details Website

Verified Oct 2026 · Unclaimed listing

Finch Plumbing

100/100
✓ MO Certified Backflow Tester Verified #06-9187 ★ 4.7 (3 reviews) 9 certified testers Backflow Testing

3377 Hollenberg Dr, Bridgeton, MO 63044 · 7 mi from Olivette

Call (314) 291-4300 Details Website

Verified Oct 2026 · Unclaimed listing

C&R Mechanical

100/100
✓ MO Certified Backflow Tester Verified #06-9578 ★ 3.4 (14 reviews) 17 certified testers Backflow Testing

12825 Pennridge Dr, Bridgeton, MO 63044 · 7 mi from Olivette

Call (314) 739-1800 Details Website

Verified Oct 2026 · Unclaimed listing

Rock Hill Mechanical

100/100
✓ MO Certified Backflow Tester Verified #13-10768 ★ 5 (6 reviews) 7 certified testers Backflow Testing

524 Clark Ave, Kirkwood, MO 63122 · 7 mi from Olivette

Call (314) 966-0600 Details Website

Verified Oct 2026 · Unclaimed listing

RA Guinner Plumbing

100/100
✓ MO Certified Backflow Tester Verified #06-6814 ★ 4.8 (45 reviews) 3 certified testers Backflow Testing

7244 Gravois Ave, St. Louis, MO 63116 · 9 mi from Olivette

Call (314) 752-9850 Details Website

Verified Oct 2026 · Unclaimed listing

Jarrell Mechanical

100/100
✓ MO Certified Backflow Tester Verified #13-13423 ★ 3.7 (25 reviews) 50 certified testers Backflow Testing

4208 Rider Trail N, Earth City, MO 63045 · 9 mi from Olivette

Call (314) 291-0100 Details Website

Verified Oct 2026 · Unclaimed listing

Haberberger Mechanical

100/100
✓ MO Certified Backflow Tester Verified #06-8103 ★ 3.4 (29 reviews) 28 certified testers Backflow Testing

9744 Pauline Pl, St. Louis, MO 63123 · 9 mi from Olivette

Call (314) 631-3324 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 · 9 mi from Olivette

Call (314) 475-1001 Details Website

Verified Oct 2026 · Unclaimed listing

Hoffman Plumbing

100/100
✓ MO Certified Backflow Tester Verified #34-0090 ★ 4.2 (24 reviews) 2 certified testers Backflow Testing

2619 Salena St, St. Louis, MO 63118 · 9 mi from Olivette

Call (314) 772-3559 Details Website

Verified Oct 2026 · Unclaimed listing

Lawn Systems, Inc.

100/100
✓ MO Certified Backflow Tester Verified #34-10124 ★ 4.8 (255 reviews) 15 certified testers Backflow Testing

2260 Cassens Dr, Fenton, MO 63026 · 10 mi from Olivette

Call (636) 349-6640 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 Olivette 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 Olivette

Who can test a backflow preventer in Olivette?

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 Olivette?

15 testers who test for the public list Olivette as their base on Missouri's roster, and 125 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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