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Got a notice from your utility? Annual backflow testing must be performed by a certified tester and filed with the municipality. We test, document and submit — so the compliance box is closed, not just ticked.
What This Service Is
Backflow is when water reverses direction in a plumbing system and non-potable water — from irrigation, a pool autofill, or commercial equipment — is drawn back into the clean supply. A backflow preventer is the mechanical device that stops that reversal, and annual testing is how anyone knows it still works. The device fails silently; only a test reveals it.
Backflow prevention protects potable water supplies from contamination caused by pressure changes and cross-connections. When devices are not properly installed, tested or maintained, contaminated water from irrigation systems, commercial equipment or multi-unit infrastructure can enter clean supply lines — creating health risks and regulatory violations.
Shamrock Plumbing provides backflow testing and certification throughout Central Florida. Our licensed testers verify device operation, measure pressure differential performance and ensure compliance with municipal and state requirements, with accurate documentation that keeps property owners compliant year after year.
Who Needs Testing
If you have an irrigation system on municipal water, you almost certainly have a device — and it almost certainly needs annual testing.
Without current certification, property owners face compliance notices, fines, and in some cases interruption of water service. Utilities do enforce this, and the notice usually arrives with a deadline attached.
The test itself is short. The consequences of an expired certificate are not proportionate to it, which is the main reason this is worth diarising rather than reacting to.
Book Annual TestingDevices We Test and Install
Reduced pressure zone devices, used where contamination risk is highest. Common on commercial properties and required for many equipment connections.
Two independently operating check valves in series, widely used for lower-hazard cross-connections.
Typical on residential and commercial irrigation systems — the device most Central Florida homeowners have without knowing it.
Residential irrigation assemblies, tested and certified against municipal requirements.
Devices protecting the supply from pool water drawn back through an autofill connection.
Where a device fails testing or has aged out, replacement to Florida code and municipal standards.
The Shamrock Process
A certified tester evaluates the internal valves and the physical condition of the assembly.
Pressure differential performance is measured to confirm the device actually prevents reverse flow.
If it fails, we repair or replace the assembly rather than leaving you to arrange a second visit.
Results documented and submitted to the local authority where required, closing the compliance loop.
We help manage testing schedules and documentation so devices stay certified year after year — rather than you discovering the certificate lapsed when the notice arrives.
Homes & Communities
Installation is also required for new irrigation systems and after plumbing modifications that affect device performance.
Business & Industrial
Commercial and multi-unit properties face stricter oversight. Certified testing and accurate records protect both compliance standing and the public supply.
Related Plumbing Services
Backflow Testing Across Central Florida
From our Orlando headquarters on Old Winter Garden Road, Shamrock provides certified backflow testing throughout Orange and Seminole Counties.
Licensed. Certified. Documented.
Send us the notice from your utility and we will handle the test, any repair, and the paperwork — then remind you when next year's is due.
With more than 80,000 repipes completed in Orlando and across Central Florida, Shamrock Plumbing is one of the region’s most experienced repiping specialists. Our commitment to quality workmanship and customer satisfaction has also earned us recognition as a 6-time Angi Super Service Award winner.
Explore the areas we serve below to find plumbing services in your community.
Backflow testing verifies that a backflow prevention device is operating correctly and protecting Orlando’s potable water supply from contamination. Certification confirms the device meets local municipal and Florida state compliance requirements.
Most Central Florida area municipalities require annual backflow testing. Requirements may vary depending on the local water authority and property type. Shamrock Plumbing ensures your certification is completed on schedule.
Failure to complete required backflow testing may result in compliance notices, fines, or possible interruption of water service until certification is submitted.
An RPZ valve, or Reduced Pressure Zone device, is a common backflow prevention assembly used on irrigation and commercial systems. Shamrock Plumbing tests and certifies RPZ devices.
Yes. We provide commercial backflow testing and certification for Central Florida multi-unit properties, office buildings, retail centers, HOAs, medical facilities, and industrial sites.
Yes. Shamrock Plumbing provides licensed backflow testing and certification services in Orlando, Winter Park, Kissimmee, Altamonte Springs, Lake Mary, Sanford, Clermont, Ocoee, Windermere, Winter Garden, Winter Springs, and nearby Central Florida communities.
Our licensed plumbing professionals provide emergency response, leak detection, sewer replacement, water heater service, drain and sewer cleaning, repiping, and complete plumbing system repairs across Orlando and Central Florida. Submit your request and a member of our local team will contact you promptly to schedule service.. If you're experiencing a plumbing emergency, we're here to help 24/7. Call (407) 326-3056 now for immediate assistance.
Shamrock Plumbing has proudly served
residential and commercial clients for over 20 years.
Our licensed and insured team delivers reliable repairs,
installations, and 24/7 emergency service throughout
Orange and Seminole Counties.
License # CFC1426719
