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Backflow testing in Johnson City, TN

18 backflow testing businesses work within 25 miles of Johnson City, 5 of them based in town. Every one has testers on Tennessee's certified backflow tester roster.

18 businesses within 25 miles
20 for-hire testers based in Johnson City

Certified backflow testers near Johnson City

Allied Piping Company

100/100
✓ TN Certified Backflow Tester Verified #12182 ★ 4.5 (4 reviews) 2 certified testers Backflow Testing

1407 E Fairview Ave, Johnson City, TN 37601 · under 1 mile from Johnson City

Call (423) 929-7178 Details Website

Verified Oct 2026 · Unclaimed listing

Roto Rooter

90/100
✓ TN Certified Backflow Tester Verified #14647 ★ 4.7 (851 reviews) Backflow Testing

3B Charter Ct, Johnson City, TN 37604 · 3 mi from Johnson City

Call (423) 326-6276 Details Website

Verified Oct 2026 · Unclaimed listing

Cornett Service Group

80/100
✓ TN Certified Backflow Tester Verified #5526 ★ 4.8 (6 reviews) Backflow Testing

1875 Old Bristol Hwy, Watauga, TN 37694 · 7 mi from Johnson City

Call (423) 547-3285 Details

Verified Oct 2026 · Unclaimed listing

Comfort Systems USA

100/100
✓ TN Certified Backflow Tester Verified #10659 ★ 4.8 (12 reviews) 2 certified testers Backflow Testing

2850 TN-394, Blountville, TN 37617 · 13 mi from Johnson City

Call (276) 669-3138 Details Website

Verified Oct 2026 · Unclaimed listing

HVAC, Inc.

100/100
✓ TN Certified Backflow Tester Verified #9585 ★ 3.9 (34 reviews) 4 certified testers Backflow Testing

2 Spruce St, Bristol, TN 37620 · 20 mi from Johnson City

Call (423) 989-5000 Details Website

Verified Oct 2026 · Unclaimed listing

Long's Construction

80/100
✓ TN Certified Backflow Tester Verified #13030 ★ 4.3 (11 reviews) Backflow Testing

5566 Fort Henry Dr, Kingsport, TN 37663 · 10 mi from Johnson City

Call (423) 239-6849 Details

Verified Oct 2026 · Unclaimed listing

BAE Systems

90/100
✓ TN Certified Backflow Tester Verified #7582 ★ 4.2 (21 reviews) 2 certified testers Backflow Testing

4509 W Stone Dr, Kingsport, TN 37660 · 22 mi from Johnson City

Call (423) 578-6166 Details Website

Verified Oct 2026 · Unclaimed listing

Johnson City Water and Sewer Services: backflow test rules

  • Who must test. Failed assemblies must be repaired or replaced; the FAQ does not say whether private testers submit reports. Source.
  • Notices and deadlines. Annual inspection by city inspectors; notice format not stated. Source.

Everything about Johnson City Water and Sewer Services's backflow program

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 Johnson City and we'll text you a month before it is due, with certified local testers ready to book.

Free. One text before your test is due. No spam, cancel anytime. Privacy

Backflow testing questions in Johnson City

Who can test a backflow preventer in Johnson City?

A tester certified by Tennessee Department of Environment and Conservation (Fleming Training Center). Your water utility may also keep its own list of testers allowed to file reports. In Johnson City, see Johnson City Water and Sewer Services's rules below.

How many certified backflow testers are based in Johnson City?

20 testers who test for the public list Johnson City as their base on Tennessee's roster, and 18 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: Tennessee Department of Environment and Conservation (Fleming Training Center), read October 6, 2026.

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