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Backflow prevention is one of those plumbing services that most property owners don’t think about — until their local water authority sends a notice, or worse, until contaminated water enters the potable supply. Barnett Plumbing provides backflow preventer installation, testing, and certification services for commercial and residential properties throughout Marietta and North Atlanta.
Your plumbing system is designed to move water in one direction: from the public water supply into your building. Backflow occurs when a pressure reversal causes water to flow backward — potentially pulling contaminated water from irrigation systems, industrial processes, or fire suppression lines back into the clean water supply.
There are two types of backflow:
Both can introduce contaminants into the water supply, which is why backflow prevention is required by Georgia law for many commercial and irrigation connections.
Georgia law requires backflow prevention devices on:
Installation. We install the appropriate type of backflow preventer for your application — including reduced pressure zone (RPZ) assemblies, double check valve assemblies, and pressure vacuum breakers.
Annual Testing & Certification. Most jurisdictions require backflow preventers to be tested annually by a certified tester and documentation submitted to the water authority. Our licensed backflow testers perform the inspection and submit required reports on your behalf.
Repair & Replacement. When a backflow device fails its test or begins leaking, we repair or replace the assembly and retest to confirm compliance.
Don’t let a missed annual test result in a notice of violation from your water authority. Barnett Plumbing serves Marietta, Kennesaw, Marietta, Sandy Springs, and surrounding communities. Call (678) 437-1234 to schedule backflow testing or installation.
Homeowners Trusted Reviews
Nick Vogas
4.9
Based on 230+ Reviews
Ricky was great. He was a really nice guy and got our water fountain back up and running really quickly. If you need any kind of repairs like that, these are the guys to go to! Top notch
Josh was on time and Very Professional. He went over all my options and made sure everything was working properly! I would definitely recommend them to anyone that needs a plumber! Thank you Josh !
I highly recommend. Ricky was patient experienced professional. Diagnosed our problem and had it fixed in record time. We will call Ricky next time! Ty !
Nicholas B came to our house today to finish a restoration project. He was above and beyond professional he went out of his way to show me how different things worked that I was unclear about - he did a fantastic job! He is truly an asset to citywide plumbing, and we will be requesting him again for our next Plumbing needs! Thank you
Nicholas B came to our house today to finish a restoration project. He was above and beyond professional he went out of his way to show me how different things worked that I was unclear about - he did a fantastic job! He is truly an asset to citywide plumbing, and we will be requesting him again for our next Plumbing needs! Thank you
Josh is excellent at what he does! He came on time, went right to the leak and fixed it in a timely manner. Very professional and highly recommend this company for all your plumbing needs. We thank you for coming out to Space Shop Self Storage- Duluth.
We carefully inspect the issue to identify the exact plumbing problem and its root cause.
Step 1
You receive a transparent, upfront quote with no hidden costs before any work begins.
Step 2
Our skilled plumbers carry out fast, reliable repairs using professional tools and proven methods.
Step 3
We thoroughly test the system to ensure everything is working perfectly and leak-free.
Step 4
Homeowners trust Barnett Plumbing for reliable service, honest workmanship, and fast solutions. We’re committed to delivering quality plumbing services that keep your home running smoothly.
We’re a family-owned business that’s been protecting North Atlanta homes since 2008. As a local company, we’re personally invested in this community — we’re not a faceless national chain, we’re your neighbors, and our reputation here is everything to us.
Plumbing problems don’t wait for business hours, and neither do we. We’re available around the clock, so whether it’s a burst pipe at midnight or a backed-up drain on a Sunday, you can reach us and get a fast response.
No games, no surprise charges. You get a clear, upfront quote before we start any work — what we quote is what you pay, with no hidden costs sprung on you after the job’s done.
Every member of our team is licensed and certified. We bring years of hands-on experience to every job, from a simple leaky faucet to full system installations, so you know the work is being done right.
We stand behind every repair. After we finish a job, we run a full quality test to make sure everything is working properly and leak-free before we consider the job done — and we back that with a workmanship guarantee.
At our plumbing company, we combine years of hands-on experience, licensed expertise, and reliable service to keep homes and businesses running smoothly. From detailed inspections and precise repairs to full system installations and maintenance, our skilled team delivers dependable solutions tailored to your needs.
With a strong commitment to quality workmanship, transparent pricing, and customer satisfaction, we ensure every job is completed with care and precision. Backed by trust, experience, and guaranteed results, we are your go-to choice for safe, efficient, and long-lasting plumbing solutions.
Take the first step toward fast, reliable plumbing solutions for a safe and worry-free.
Yes, we provide 24/7 emergency plumbing services for urgent issues like burst pipes, leaks, and blockages. Plumbing emergencies don’t keep business hours, so neither do we.
Yes. Every plumber on our team is licensed, certified, and experienced, so you can trust that repairs and installations are handled safely and correctly the first time.
We provide a clear, upfront estimate before any work begins — no hidden fees or surprise charges. Give us a call at 678-944-9727 and we’ll walk you through pricing for your specific issue before we start.
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We handle a full range of residential and commercial plumbing needs, including water heater repair, pipe repair, drain cleaning (including emergency drain cleaning), water filtration systems, leak detection & repair, water pressure solutions, backflow prevention, fixture installation, sink installation & repair, garbage disposal installation, gas line repair, and commercial plumbing/drain work.
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We pride ourselves on fast response times. For emergencies, we aim to get a plumber to you as quickly as possible, and for standard service calls we work to schedule you promptly so plumbing issues don’t disrupt your home or business any longer than necessary.
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Yes. Every job we complete goes through a final quality testing check to make sure everything is working properly and leak-free, and we stand behind our workmanship with a guarantee.
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Kennesaw, GA
Smyrna, GA
Acworth, GA
Powder Springs, GA
Woodstock, GA
Austell, GA
Sandy Springs, GA
Mableton, GA
Vinings, GA
Roswell, GA
We proudly provide reliable plumbing services across surrounding neighborhoods and nearby areas, ensuring fast response times and trusted solutions wherever you need us.
