BackflowNear Test-Due Reminder

Backflow testing in Largo, FL

39 backflow testing businesses work within 25 miles of Largo, 2 of them based in town. Every one is on the approved tester list of 3 water utilities.

39 businesses within 25 miles

Backflow testing companies near Largo

C Lacey Plumbing Inc

90/100
✓ FL Utility-Approved Tester Verified ★ 4.5 (79 reviews) On City of Tampa list Backflow Testing

1400 Clearwater Largo Rd, Largo, FL 33770 · 3 mi from Largo

Call (727) 581-9883 Details Website

Verified Oct 2026 · Unclaimed listing

Fire Safety Inc

90/100
✓ FL Utility-Approved Tester Verified ★ 3.6 (9 reviews) On City of Tampa list Backflow Testing

2721 Roosevelt Blvd, Clearwater, FL 33760 · 3 mi from Largo

Call (727) 523-1843 Details Website

Verified Oct 2026 · Unclaimed listing

Piper Fire Protection Inc

90/100
✓ FL Utility-Approved Tester Verified ★ 5 (1110 reviews) On City of Tampa listOn Sunshine Water Services list Backflow Testing

13075 US Hwy 19 N, Clearwater, FL 33764 · 3 mi from Largo

Call (727) 581-9339 Details Website

Verified Oct 2026 · Unclaimed listing

FCS Inc

90/100
✓ FL Utility-Approved Tester Verified ★ 4 (69 reviews) On City of Tampa listOn Sunshine Water Services list Backflow Testing

3813 126th Ave N, Clearwater, FL 33762 · 5 mi from Largo

Call (727) 576-1111 Details Website

Verified Oct 2026 · Unclaimed listing

VCC LLC

90/100
✓ FL Utility-Approved Tester Verified On City of Tampa list Backflow Testing

4600 W Cypress St Ste 460, Tampa, FL 33607 · 15 mi from Largo

Call (727) 475-2548 Details Website

Verified Oct 2026 · Unclaimed listing

Tampa Clean Water

90/100
✓ FL Utility-Approved Tester Verified ★ 3.7 (3 reviews) On City of Tampa list Backflow Testing

3824 W Bay to Bay Blvd, Tampa, FL 33629 · 16 mi from Largo

Call (656) 800-2500 Details Website

Verified Oct 2026 · Unclaimed listing

Llona Plumbing Inc

90/100
✓ FL Utility-Approved Tester Verified ★ 4.8 (433 reviews) On City of Tampa list Backflow Testing

5133 W Clifton St, Tampa, FL 33634 · 16 mi from Largo

Call (813) 477-1870 Details Website

Verified Oct 2026 · Unclaimed listing

Cass Plumbing Inc

90/100
✓ FL Utility-Approved Tester Verified ★ 4.6 (927 reviews) On City of Tampa list Backflow Testing

4808 N Hubert Ave, Tampa, FL 33614 · 17 mi from Largo

Call (813) 265-9200 Details Website

Verified Oct 2026 · Unclaimed listing

Roto Rooter

90/100
✓ FL Utility-Approved Tester Verified ★ 4.8 (3760 reviews) On City of Tampa list Backflow Testing

5020 Tampa W Blvd, Tampa, FL 33634 · 17 mi from Largo

Call (813) 889-8430 Details Website

Verified Oct 2026 · Unclaimed listing

Busto Plumbing

90/100
✓ FL Utility-Approved Tester Verified ★ 4 (21 reviews) On City of Tampa list Backflow Testing

1702 W St Louis St, Tampa, FL 33607 · 18 mi from Largo

Call (813) 251-1061 Details Website

Verified Oct 2026 · Unclaimed listing

Garcia Plumbing

80/100
✓ FL Utility-Approved Tester Verified ★ 5 (10 reviews) On City of Tampa list Backflow Testing

10728 Ayrshire Dr, Tampa, FL 33626 · 14 mi from Largo

Call (813) 624-9400 Details

Verified Oct 2026 · Unclaimed listing

Emery Constructors

80/100
✓ FL Utility-Approved Tester Verified On City of Tampa list Backflow Testing

5100 W Kennedy Blvd Unit 225, Tampa, FL 33609 · 15 mi from Largo

Call (727) 564-0303 Details

Verified Oct 2026 · Unclaimed listing

Ferlita & Son Plumbing

80/100
✓ FL Utility-Approved Tester Verified ★ 4.8 (6 reviews) On City of Tampa list Backflow Testing

8023 N Clark Ave, Tampa, FL 33614 · 18 mi from Largo

Call (813) 888-7643 Details

Verified Oct 2026 · Unclaimed listing

Olin Plumbinginc

90/100
✓ FL Utility-Approved Tester Verified ★ 4.9 (1304 reviews) On City of Tampa list Backflow Testing

3201 E 8th Ave, Tampa, FL 33605 · 21 mi from Largo

Call (813) 443-5820 Details Website

Verified Oct 2026 · Unclaimed listing

Bayshore Plumbing

90/100
✓ FL Utility-Approved Tester Verified ★ 4.1 (59 reviews) On City of Tampa list Backflow Testing

4302 E 10th Ave #103, Tampa, FL 33605 · 22 mi from Largo

Call (813) 835-5633 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 Largo 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 Largo

Who can test a backflow preventer in Largo?

A tester certified as Florida's rules require, and accepted by your water utility. The companies here are on the approved list of 3 water utilities: companies allowed to file backflow test reports in that system. Check the notice your utility sent.

How many backflow testing companies serve Largo?

39 companies on the approved list of 3 water utilities work within 25 miles of Largo, 2 of them based in town.

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.

Approved list: Miami-Dade WASD certified backflow prevention assembly testers, Miami-Dade Water and Sewer Department.

Approved list: Sunshine Water Services certified backflow assembly testers, Sunshine Water Services.

Approved list: City of Tampa certified backflow testing companies registered in SwiftComply, City of Tampa Water Department.

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