Backflow Preventer Installation and Repairs

Dedicated to water safety since 1999, our backflow prevention services maintain the integrity of your home’s water supply in Central Texas.

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Installation & Repair

Solutions Tailored for Your Home

Safeguard your business’s water supply with Radiant Plumbing and Air, specializing in backflow prevention to meet state and county regulations. Our licensed plumbers are adept at identifying and repairing any backflow issues, ensuring your system operates efficiently. With swift, cost-effective solutions, we prioritize the safety and reliability of your water supply. For systems beyond repair, our certified team excels in backflow replacement, offering secure and effective solutions. Protect your water quality and avoid regulatory fines with Radiant Plumbing and Air’s expert backflow prevention services.

Austin Service Area

Greater Austin & Beyond

We proudly service the following cities and neighborhoods in Austin, TX:

Not seeing your area? Give us a call at 512-265-6994


Greater San Antonio & Beyond

We proudly service the following cities and neighborhoods across San Antonio, TX:

Not seeing your area? Give us a call at 210-294-6703

Radiant Branches

Lone Star Locals

Radiant Plumbing and Air Conditioning operates across Austin and San Antonio, keeping over 10,000 homeowners happy with home repairs, installations, and maintenance. 

Austin, TX

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San Antonio, TX

A map showing the area of San Antonio that Radiant serves

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Decades of Excellence in Home Services

For over 20 years, Radiant Plumbing & Air has set the standard for professional home services. Our team of licensed and insured technicians brings unmatched expertise to every job, ensuring reliable repairs and maintenance. We're committed to excellence, and it shows in every task we undertake.

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Trust is the cornerstone of our services at Radiant. We guarantee the reliability of our installations and repairs, conducted only by our fully licensed and insured professionals. With us, you can be confident that your home systems are in skilled hands.

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Whether it’s plumbing woes or air conditioning tune-ups, Radiant Plumbing & Air covers it all. Our comprehensive equipment expertise means we’re equipped to fix all types of home systems. From routine maintenance to complex repairs, we handle every challenge with skill and efficiency.

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Total Home Coverage

Our comprehensive plumbing services ensure your entire home plumbing system functions flawlessly. Explore how we can enhance your home’s plumbing infrastructure with a range of expert services designed for efficiency and reliability.

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Frequently Asked Questions

What is a backflow preventer used for?

A backflow preventer is a crucial device installed on your home’s water pipes to ensure water flows in one direction and never reverses. Its primary purpose is to safeguard drinking water from contamination caused by backflow—the undesirable reversal of water flow. In simple terms, it acts as a barrier preventing water from flowing backward in your pipes, thus averting the introduction of contaminants like liquids, gases, or suspended solids into your drinking water. This plumbing essential plays a vital role in maintaining water supply integrity, particularly during changes in water pressure or maintenance activities. Various devices, such as air gaps, pressure vacuum breakers, spill-resistant vacuum breakers, double-check valves, and reduced pressure principle backflow assemblies, serve this function. At Radiant Plumbing and Air, we possess expertise in all types of water backflow prevention devices to meet your specific plumbing needs reliably.

A backflow prevention device, exemplified by a check valve-based system, functions through the use of check valves that automatically open and close in response to changes in water pressure. When water flows normally, these valves stay open, permitting water to move in the intended direction. However, in the event of a pressure drop or a change in flow direction, the valves promptly close, establishing a barrier that prevents the reverse flow of water and potential contaminants. This intelligent mechanism safeguards the public water supply from backflow, preserving water quality and ensuring compliance with plumbing regulations. To uphold the consistent functionality of these devices, regular testing and maintenance are essential.

Backflow testing is critical for keeping people healthy and following plumbing rules and regulations in Texas. The test of your water pipes checks that backflow prevention devices work well, essentially stopping the dirty stuff from getting into your home’s clean water. Regular testing not only protects public health but also ensures legal compliance, reduces liability, and contributes to the overall integrity of water distribution systems.

No, installing a backflow preventer plumbing is a job for certified plumbers, such as the professionals at Radiant Plumbing and Air. These devices are mechanical and can fail, so the Texas Commission on Environmental Quality (TCEQ) mandates testing by a licensed tester for all backflow-prevention assemblies during installation. Moreover, backflow-prevention assemblies installed for health hazard protection need to undergo annual testing to ensure their continued effectiveness. Trusting certified experts ensures the proper installation and ongoing maintenance required for these critical plumbing components.

An essential measure to prevent backflow is the implementation of an air gap, creating a separation between the supply and receiving sides of a water line. This simple yet effective solution breaks the vacuum formed during a backflow situation, ensuring water doesn’t flow backward.

Plumbing codes mandate the use of air gaps for specific fixtures like dishwashers to safeguard against the backflow of potentially contaminated water into the clean water supply, preventing serious health risks. Without an air gap, improper plumbing or city main shutdowns can lead to wastewater siphoning into the drinking supply, posing severe dangers. Although rare, instances of hoses left in mud puddles or bleach water have resulted in fatalities. The plumbing code acts as a crucial safeguard, protecting the public from such hazards.

While fixtures like toilets, washing machines, and automatic dishwashers rely on air gaps, it’s important to note that these gaps can fail if flooded at any point.