BackflowNear Test-Due Reminder

Backflow testing in Key Largo, FL

6 backflow testing businesses work within 25 miles of Key Largo, 2 of them based in town. Every one is on the approved tester list of Miami-Dade WASD.

6 businesses within 25 miles

Backflow testing companies near Key Largo

What the badges mean
✓ FL Utility-Approved Tester Verified On the city list
The company is on a water utility's own approved list (the second badge names the list). That is the utility's approval, not a state license, and it counts for that utility.
3 certified testers
How many certified testers the roster lists at this business.
★ 4.8 (25 reviews)
The Google rating, shown as Google reports it. It does not change the order.

Order is by our quality score, never by payment. How we verify listings.

Seaway Plumbing Inc

90/100
✓ FL Utility-Approved Tester Verified ★ 4.8 (112 reviews) On Miami-Dade WASD list Backflow Testing

10 Barracuda Ln, Key Largo, FL 33037 · 10 mi from Key Largo

Call (305) 367-3225 Details Website

Verified Oct 2026 · Unclaimed listing

Allure Plumbing Corp

80/100
✓ FL Utility-Approved Tester Verified ★ 5 (17 reviews) On Miami-Dade WASD list Backflow Testing

23701 SW 133rd Ave, Homestead, FL 33032 · 24 mi from Key Largo

Call (786) 379-1556 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 Key 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 Key Largo

Who can test a backflow preventer in Key Largo?

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

How many backflow testing companies serve Key Largo?

6 companies on the approved list of Miami-Dade WASD work within 25 miles of Key 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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