Backflow Preventer Replacement in San Marcos
Professional Backflow Device Replacement for Commercial Properties
A failing backflow preventer can compromise the safety of your water supply and put your business at risk of contamination. If your system is outdated, damaged, or no longer compliant, it may be time to consider a replacement. At Reliable Air, we specialize in backflow preventer replacement for commercial properties in San Marcos, helping businesses maintain safe, reliable, and regulation-compliant water systems.
Whether your existing device is leaking, corroded, or failing inspection, our experienced team is here to provide dependable solutions tailored to your property's plumbing needs.
Signs You Need Backflow Preventer Replacement
It’s not always easy to tell when a backflow preventer needs replacing, but ignoring the signs can lead to costly damage and potential health hazards. You may need a replacement if:
- The device is leaking or showing signs of visible damage or corrosion
- Water pressure is inconsistent or has dropped noticeably
- You’ve failed a backflow inspection or received a citation for non-compliance
- The device is outdated and replacement parts are hard to find
- You notice discolored or foul-smelling water, which may indicate contamination
Our team can assess your system and recommend a replacement if your current device is no longer functioning safely or efficiently.
Need to replace a backflow preventer in San Marcos? Call Reliable Air at (512) 580-8837 or contact us online to schedule service.
Benefits of Replacing Your Backflow Preventer
Replacing an old or faulty backflow device offers several key benefits for your business:
✅ Improved water safety and reduced risk of contamination
✅ Compliance with local regulations and inspection standards
✅ Fewer service disruptions and plumbing issues
✅ Long-term cost savings by preventing emergency repairs and water damage
✅ Peace of mind knowing your property and occupants are protected
We only install high-quality, durable devices designed to meet current San Marcos plumbing codes and stand up to real-world use in commercial settings.
Local Compliance and Regulations
San Marcos enforces strict guidelines for commercial backflow prevention to safeguard the public water supply. Failing to replace a non-functioning device can lead to code violations and fines. Our technicians stay up to date on all local codes and can ensure your new backflow preventer meets or exceeds the necessary standards.
Common Questions About Backflow Preventer Replacement
- How long does a backflow preventer last?
Most backflow prevention devices last between 5–10 years, depending on usage and water conditions. If your unit is approaching the end of its lifespan, a proactive replacement is the safest option. - Can I upgrade to a more efficient model?
Absolutely. Newer backflow preventers are more compact, efficient, and easier to maintain. We can recommend an upgraded device that fits your system’s needs and budget. - Do I need a permit for backflow replacement?
In most cases, yes—replacing a backflow preventer involves plumbing code compliance. Our team handles the permitting process to make the upgrade seamless for you.
Don’t wait for a system failure or failed inspection to address a faulty backflow device.
Call Reliable Air today at (512) 580-8837 or contact us online to schedule a professional assessment and get your backflow preventer replaced the right way.

-
"When Edgar arrived he was polite and courteous. He explained what he was going to complete the diagnostics first."
He then explained what needed to be done and made sure I understood. It was very appreciated that he gave me time to decide on my repair because it was going to cost a bit of money.- Esther T. -
"I am very happy with the professional informative technicians and office people at Reliable Air."
I HIGHLY recommend this San Marcos company who now does plumbing. Today they installed my new water softener and I am very happy with their service.- Lisa R. -
"Technician JW called ahead of arrival and was on time."
JW quickly ID the problem and explained what was happening and what needed to be done. He was personable and completed the job w/o delay.- Travis H. -
"So thankful they could help us today during this unseasonably hot time."
Second time we've used Reliable Air. Andrew was on-time and professional.- Robert G. -
"The installation came with a 10 year parts and maintenance, so this is all being done free of charge."
We used them to install a brand new a/c unit about 4 years ago and just had our first issue with it this week. I called yesterday, and they had someone out first thing this morning to fix it.- Dave N. -
"Their technicians are amazing and wonderful staff."
Our system stopped cooling and reliable was quick to respond. They easily diagnosed the issue and took care of it immediately. Our safe T sensor kept tripping they cleaned the drain and fixed the sensor.- Erik G. -
"This company is by far the best company you can ever find. They have been helping us off and on for over a year."
There was no pressure - no salesy pitch - and they continued to help us even though they knew our system was old and needed to be upgraded. They would come late in the day if needs be, and worked around our schedule- Susan & Blake -
"Reliable Air is dependable and trustworthy."
JW came out on time and did a good job of tuning up my heat pump.- Joe V.

Why Choose Us?
As times get tough, other companies cut corners. But we decided to stay reliable for over 29 years. Call us and you'll get:
-
Many of our employees stay for 10+ years. So you'll always hear a familiar voice on the phone or see a familiar face at your door.
-
With same-day service and 2-hour scheduling windows, you'll get service at a time that's convenient for you.
-
Since we constantly train our employees, you can be 100% confident that your job will be done right—the first time.