Your Trusted Backflow Preventer in Oahu

At All Aloha Plumbing, we provide high-quality backflow prevention services in the Oahu area that will keep your plumbing system in good working order all year round. As a locally owned and operated business, we take great pride in serving the local community with respect and humility. You can always expect us to go the extra mile to put a smile on your face and we will take care of your backflow issues as quickly and efficiently as possible. We are ‘The Plumbers with Aloha’, and we’re ready to get to work for you.

If you need dependable backflow prevention testing in Oahu or the surrounding areas, get in touch with us today for reputable service you can count on.

What Is Backflow Prevention?

Backflow is a situation that occurs when water from your main water supply lines flows in the opposite direction. When outgoing wastewater mixes with incoming water that your family is going to use for drinking, bathing, laundry, or washing dishes, it can create a serious health hazard. Backflow prevention testing means we will check for different issues like back pressure and back siphonage to determine if backflow is happening in your home. 

Our goal with backflow prevention is to keep any contaminated water out of your home, and if backflow is occurring, find a quick solution to get the situation under control. If you suspect there is an issue with backflow in your home, get in touch with us at All Aloha Plumbing as soon as possible to schedule an appointment so we can provide you with the solution you need.

Potential Backflow Risks

Since backflow isn’t obvious to the naked eye, many homeowners take it for granted. It’s important to realize that if it isn’t addressed and fixed sooner than later, there could be serious health risks. Not only could you suffer damage to your plumbing system, but if you don’t have a quality backflow preventer device in place, you may end up with a range of contaminants in your water. These can include bacteria, pathogens, toxic chemicals, and more. The best solution is to get in touch with us, and we will walk you through the process to ensure your household water supply is safe.

Working with Our Team

When you have backflow issues in your home and get in touch with us, you’ll have access to our exceptional plumbing services and memorable customer service that will keep you coming back again and again. We will treat you just like a member of the family, with benefits that include:

24-hour emergency service
Convenient financing options
Honest and upfront pricing with no hidden fees
Courteous plumbers who treat your home with respect
$50 off any plumbing service
$100 off water heater install
$75 off hydrojetting
Senior citizen & military discounts

FAQs

A backflow preventer is a vital plumbing device designed to protect potable water supplies from contamination caused by the reversal of water flow. It prevents non-potable water or substances from flowing back into the clean water system, safeguarding public health and the water supply.

The backflow preventer is installed on water supply lines that may be subject to changes in water pressure, such as sprinkler systems, irrigation systems, or commercial buildings with multiple water outlets. When there is a drop in pressure in the clean water supply, the backflow preventer closes automatically, preventing any contaminated water or substances from flowing backward into the clean water system.

Backflow preventers come in various types, including double-check valves, reduced pressure zone (RPZ) valves, and atmospheric vacuum breakers. Regular maintenance and testing of backflow preventers are essential to ensure their proper functioning and compliance with local plumbing codes and regulations.

Backflow is prevented by using backflow preventers, which are specialized plumbing devices installed in water supply lines at strategic points to ensure that water flows in only one direction. When water pressure in the supply line drops or changes, the backflow preventer automatically closes, preventing any backflow of non-potable water or contaminants into the clean water system.

There are different types of backflow preventers, including:

  • Double-check valve: A simple backflow preventer with two check valves that allow water flow in one direction only.
  • Reduced pressure zone (RPZ) valve: More complex and effective, this device uses two check valves and a relief valve to provide a higher level of protection against backflow.
  • Atmospheric vacuum breaker: Installed on outdoor faucets, this backflow preventer relies on air pressure to prevent backflow.

Regular maintenance and testing of backflow preventers are crucial to ensure their proper functioning and compliance with plumbing codes and regulations, protecting the public water supply from potential contamination.

Backflow prevention is of utmost importance to protect public health and ensure the safety of the water supply. Here are the key reasons why backflow prevention is crucial:

  • Contamination Prevention: Backflow can introduce non-potable water, chemicals, or other contaminants into the clean water system, posing serious health risks to consumers.
  • Legal Compliance: Many jurisdictions have strict plumbing codes and regulations that mandate the installation of backflow preventers in specific situations to safeguard the public water supply.
  • Preventing Cross-Connections: Backflow prevention eliminates cross-connections between potable and non-potable water sources, reducing the risk of contamination.
  • Avoiding Water Quality Issues: Backflow incidents can lead to water quality issues and boil-water advisories, causing inconvenience to consumers and potential economic impacts.
  • Public Health Protection: By preventing the backflow of contaminants, backflow prevention ensures that the water supply remains safe and meets the required health standards.

Backflow prevention is a proactive measure that promotes public health, prevents water contamination, and safeguards the integrity of the water supply system. Regular maintenance and testing of backflow preventers are crucial to ensure their effectiveness and compliance with regulations.

Backflow refers to the unwanted reversal of water flow in a plumbing system, where the water flows back in the opposite direction from its intended path. This phenomenon can occur when there is a drop in water pressure in the clean water supply, causing the water to flow backward and potentially contaminate the water supply.

Backflow can happen due to various reasons, such as a burst water main, excessive demand on the water system, or the presence of cross-connections between potable and non-potable water sources. Cross-connections are points in the plumbing system where potable water and non-potable water (or other substances) can mix, creating a risk of contamination.

To prevent backflow and protect public health, backflow preventers are installed in strategic locations in plumbing systems. These devices ensure that water flows in only one direction and prevent the backflow of non-potable water or contaminants into the clean water supply.

Are you looking for reliable backflow prevention services in the Oahu area? Contact us today to schedule an appointment so we can get started.

Book Your Service






    Jeff Tom
    Visiting my mom and she had a leaking bathroom sink faucet, well little more than expected but Michael helped us work through the previous patch. Went the extra mile and was able to get a reasonable price with a guarantee…confident things will work for awhile. Thanks Mike!
    Sophia Wibholm
    Came in the middle of the night and was so friendly and fixed right away, definitely recommend!
    A Sue
    Michael Smoker was very professional and quickly assessed the problem and got the new toilet, replaced and cleaned up really great!!! Greg job!!!!
    Shiloh Francis
    Jai from All Aloha Plumbing was professional and experienced in repairing our leaking pipe. He kept us up to date on his progress and answered all our questions.
    Paul LeBlanc
    Very knowledgeable and kept us informed about our options. Verified cost of services performed before beginning any work. Issue was not a simple problem but it was still resolved quickly.
    Jairus Knudsen
    Very professional and prompt response, Michael was very knowledgeable and was able to offer me solid advice and solution to my problem. Only complaint would be a touch expensive.
    Rei Takayama
    All Aloha Plumbing has exceptional service both through their call center and technicians. Their team of professionals provided seamless and prompt service while giving us different options to not only take care of our program, but also to be proactive in prolonging the lifespan of our lines. Nikki, Greg and Ty along with their whole team were top notch.
    John Beatty
    Tarin Easton did a great job replacing my hot and cold water bathtub faucets and valve stems! He was very professional, proficient, courteous and explained what he was doing every step of the way. Please thank Tarin for a job well done!John BeattyMililani, HI
    Carlton Linda Luka
    Fast. Good. Explain problems and solutionsHire Ty and pay him more
    Cody Ketchum
    Michael Smoker helped us fix our garbage disposal after typical business hours and he was absolutely amazing. He not only was timely with his work but he was very personal and professional. He walked us through the whole process and was informative throughout. Would highly recommend giving this man a raise because he went above and beyond.
    Larry Partida
    Very thorough on the initial plumbing inspection. They found an undiscovered leak under a bathroom sink.
    Wesley Okamoto
    Michael was very personable and professional.
    Heather Smith
    I called with an emergency leak and they scheduled me in for the day. But called back a short time later as they were able to see me sooner! Very professional. Quick, cleaned up, answered all my questions.
    Nicholas Lee
    Tyi from All Aloha Plumbing fixed a leak and seal issue for a toilet at our place of business in HNL Chinatown / Downtown area and was communicative and professional. Tyi clearly explained safety oversights made by the past handyman that we had used to fix a leak issue. Would use All Aloha Plumbing again. Mahalo
    Gabriella Rosen
    From start to finish they did an amazing job! I lost my earring and they responded immediately by sending someone out. Tyler did an amazing job. He found it immediately and was professional. It was easy, quick, positive, and efficient. 10/10 recommend!!
    J Lo
    Thanks to Tarin who was able to come and replace a water heater in a day’s notice. He was expedient and completed the job successfully. Our tenant is now happy that she has hot water.
    Peter Mota
    Mike did a very good job. He’s fast and he’s able to problem solve very well. Changed the water heater nipples to a different material as to prevent corrosion. No leaks… Thxs Mike
    Audrey Sumida
    This is the second time that I'm using this service and very pleased with the outcome. Your technician Jarrett knew within a minute what the problem was and had him work and repair the toilet.
    Stan Yuen
    My parents were very impressed with the service and Aloha . plus they return the following days to assist in issues from the job.
    jcabasug
    they were professional and on time. Michael was thorough and explained everything before work started. He was able to fix our problem, would definitely contact them again.
    Gail Yamamoto
    Deven and Desmond did a great job fixing my water pipes and water heater. Anyone need the best company call All Aloha.
    Charles Takata
    Will call them again if needed.
    William Riddle
    Jai showed up on time and did an excellent job in a timely manner. He explained everything in detail and was very friendly & professional. I would highly recommend this company.
    leilani victor
    Had a water heater melt down and called All Aloha plumbing, and within the hour they were at my home addressing the issue. By the following morning, I had a new water heater and hot water. Extremely professional and very efficient. I will definitely use them again in the future. Thank you so much Tarin.
    Albert Caraang
    Tarin was very knowledgeable, kind, and fast with his work.
    G Keo
    Had a leak on a Sunday afternoon and was able to have someone respond on that same night. I appreciated the professionalism from Nikki and Kawika. I have only gone through the assessment phase but Kawika was patient and thorough with explaining things to me. Very hopeful for good end results. Mahalo
    Courtney Vastyan-Preiss
    Greg and Ty were awesome to work with. So nice and professional!
    Pam G
    Craig the intake person was excellent. He made me feel there was hope I called Fourth of July. My home was flooded and he had a technician came within an hour to assist the issue. They were very friendly, professional and fast.
    Dane Lospoc
    Good service Mahalo 👍
    Rocio Batarse
    Tarin was professional from the moment he introduced himself. His communications skills were excellent, keeping me in the loop with what he found, but most important with resolutions. Tasrin made proposals & we worked together to get things done. I appreciated his documentation. He did excellent work, everything looked pristine after he finished each job, , leaving no trace he had worked in the house! Great job Tarin! I would highly recommend for a plumber! Thx u
    Chris Pinick
    Water heater needed to be replaced as well as hot water line. Bath tub was replaced with stand up shower as well as sink faucet and plumbing. Mana was a solid guy came early, worked late what should have been a three man job Mana did by himself. He even dry walled. Solid job by one solid brahdah.
    colin brede
    Technician very informative to all questions asked, great explanationHe had a dedication to customer satisfaction and there best interest
    Darling Collado
    Very courteous and knowledgeable. They were able to repair all problems in a timely manner. Office staff was helpful in setting up a payment plan as well, in the evening hours no less! Very satisfied with their work. Will use them again.
    Mel Decasa
    Had leaking kitchen faucet with a large sink that needed a professional. Initially the online request sent a confirmation that someone would contact me, but since nobody did, I called, and received an apology, along with the person confirming that it would be noted that the online feature didn't file my request.The next available appointment was 2 days later, though I was put on priority wait list. The next day I got a call that there was an opening, and Teran gave thorough inspection and explanation. I asked if I could add on another sink that was leaking, and Teran said there would be no problem. He also asked if he could inspect the rest of the house. He provided 3 estimates, with the lowest being just for the kitchen faucet. We chose to fix just the Kitchen, though it was helpful to have an assessment of potential problems to watch for. Teran was efficient, friendly, informative, and considerate. We need more like him.
    armando barreiro
    Great service and even better customer service. Tyi was great.
    Kamu Rā
    Tarin did an amazing job. He exceeded our expectation. The resident manager and I (homeowner) appreciated his positive attitude and professionalism. He explained everything to detail and had visuals (pictures) to go along with it. Would highly recommend Tarin working on any job.
    Candace Goo
    Customer service was excellent and someone was able to come by the day I called. Jai was thorough and worked quickly to meet our needs. He did an amazing job and was very easy to work with.
    Lance Moriwaki
    Kai was on time, friendly, professional, and knowledgable.He took the time to explain necessary things, but did not take too long for the overhaul job to be completed. He seemed genuinely happy to be helping me out with my plumbing.
    Chase Conching
    Jai and the entire All Aloha Plumbing group were friendly and professional from day one. They were able to come out on short notice, give me three estimates (with good, better, best options) and perform all the work needed within a 72-hour timespan. No other company I reached out to was able to do that. AAP provided fair and transparent prices, and was even willing to guarantee their work for a much longer time period than their competition. I would highly recommend Jai and the All Aloha Plumbing crew for peace of mind that your plumbing issues will get fixed, for good.
    Jeffrey Acebedo
    All Aloha Plumbing responded to my request on yelp. Heather helped me schedule my appt. Stephanie did a follow up call. My technician Jai was very professional and knowledgeable on my toilet repair, he explained & showed the damages of the toilet. Jai did an excellent job from start to finish. Thank You.
    Diane Shito
    Ty was very helpful and professional. He did excellent work and was very thorough. Very considerate in keeping in mind with my budget. I will definitely recommend All Aloha Plumbing and will definitely call Ty for all my plumbing repairs.
    Dean Yamaguchi
    Ty and Joe were the technicians on the visit. They assessed the problem of a non-draining bathroom sink and while the initial estimate given to clean out the drain was acceptable, they adjusted the charges to reflect time spent to clean the drain which was a pleasant surprise! Also gave a kupuna discount which was also great. Drain runs well now. Guys were on time within the window given and did a great job!
    Emma Toilolo
    Called Saturday, spoke to Stephanie who helped me schedule my repair visit for Monday (only day available because of work) with Ty. Kept me informed and follow up with a call and an email. Tech Ty arrived, assessed the work I wanted/needed done, gave me options and started on the job asap. Replaced old pressure regulator (which was running high) and replaced the old corroded shower water valve (American Standard-no longer available). All done in one day!!Note: developers (Gentry) built with low grade pipes that becomes brittle over time. Ty had to do more than a simple job, putting more doable pipe and connectors. We are at peace knowing the job is done right with warranty to back the work.Mahalo! All Aloha Plumbing, Stephanie and Ty!! Job well done!!
    Kazu Okumura
    Jai was prompt and diagnosed the issue right away. Drain was cleaned in under an hour. Very professional and will call again for future plumbing issues.
    Nancy McClure
    Jai was extremely professional, polite and very clear when explaining the work. I highly recommend him and the company for their services
    Edward Rosas
    James was very pleased professional and friendly and you could tell he knew what he was doing because he worked in a timely manner, 10/10 would use again
    Irma Kaneshiro
    Justin did a fabulous job on my drain and replaced the disposal. He took the time to explain the procedure and cost of the service.Thank you Justin “great job”.
    Helene
    Kai was again punctual, courteous, professional and very knowledgeable. With very thorough work along with explanations and options given, Kai is easy to talk to and trustworthy. Office staff is always friendly and understanding of how stressful plumbing issues can be. Highly recommended All Aloha Plumbing!
    Jennifer Gonzales
    Mana was very informative with what he was doing and why he was doing it. I would highly recommend Hawaii Drain Pros.
    Brenda Palmero
    Technician came in a reasonable time considering it was a Sunday, same day emergency call. Faucet was replaced with no issues. Great Customer Service even after my service call. Would definitely use them for future plumbing issues.
    Christopher Lesnick
    Justin was excellent all around from the coordination and install. Very friendly, open, and timely. Did an entire water heater replacement for us when ours failed. Couldn’t be happier with the service and result. Thanks Justin.
    Darla DeCoito
    Excellent service! Mahalo!
    Michael Tanoue
    Very prompt and friendly service.
    Kaniela Fatt
    Kawika was knowledgeable and professional. Followed his recommendation of flushing the anti-siphon valve instead of replacing. Problem fixed.
    Iii P
    Technician was awesome. Arrived on time, frequently called me to keep me updated. Very professional. Will use again in future and highly recommend
    Lynn Duensing
    Nice guys. Very informative and professional.
    D Gilman
    I was fortunate enough to have Frank dispatched to our property. Not only did he detect and resolve the issue, he educated me and helped me understand things that usually takes years to experience. This was service that I deserve every time I call a contractor. Mahalo HDP🤙🏽
    Arney Kephas
    This Justin is the man. He explained to me different solution to where I have to pick. Overall A+ in my book
    Gerry Tanaka
    Mana is a wonderful, efficient worker!
    TB L
    Fantastic, personable, from the office ladies who took my call to Justin and Rosalinda doing the service call! Cannot say enough good things about them! Customer for life!
    Rebecca Gray
    The receptionist and technicians were friendly and knowledgeable. They gave excellent service and they cleared the difficult drain blockage in the pipes under the house. I gave 4 stars instead of 5 because the price was high.
    Tait Rusnak
    My mother used the service in her Honolulu condominium and was extremely satisfied with both visits - to assess the problem and to reset the toilet.
    Romy M
    Justin was great, and professional
    Wesley Wong
    Excellent knowledge and service.
    Kathy Muller
    Service person was very knowledgeable about our specific issue with drain in pool deck.
    Marcia Moreno
    Very good. Justin answered all my questions, did the job without any problems.
    Vanessa Chatham
    Frank is excellent and very thorough. He will not stop until it's fixed! Excellent and very fast, professional!
    Arlene Nakamura
    Identified problem quickly, explained what why the tub faucet was leaking, and replaced the tub faucet.
    Audrey Tokushige
    Very professional and knowledgeable. Rose and Justin are very courteous and were on time. Lots of aloha!!
    Coach Sue
    Keone and Gosha were friendly, professional and knowledgeable. They analyzed the problems, explained what needed to be done and gave options/recommendations. Great service from call center and technicians.
    Marilyn Reid
    Like their quick response and work
    Brian Watanabe
    Service technicians were professional and explained options well.
    Charmaine Canite
    Frank Salidivar at Hawaii Drain Pros was highly recommended. I’m so happy I called HDP! Frank is a professional about doing his job, friendly, personable, honest, and explained everything very thoroughly. He replaced a 80 gal solar water heater tank, controller, pump and installed an expansion tank. Frank completed the job in two days as scheduled and was on time. The job was costly and Frank asked how old I was, gave me senior discount. The office staff are so awesome, very friendly, polite, and made sure to notify me when Frank was on his way! Great customer service! If you have any plumbing issue, I highly recommend Frank and the team at Hawaii Drain Pros. Thank you Hawaii Drain Pros.
    tom uyehara
    I am pleased with the fine service and professional attitude shown by Justin and Rose, the two plumbers that came to fix my problem.
    Leslie-Carol Ganther
    Outstanding company to work with. Frank was extremely knowledgeable, professional and courteous. Very thorough analysis. Highly recommend Hawaii Drain Pros.
    Jon Mick Gabriel
    Very pleased. In my experience hawaii drain pros has the most responsive and best availability of the companies I've contacted. Work is fast professional. Prices are what I expect for the level of services rendered.
    Denny Moore
    Frank was a professional all the way. I would recommend your company and Frank for all plumbing needs
    Renee Awana
    Really exceptional customer service!
    Sandy De Soto
    Deven is very professional and very good at what he does. Kind and friendly, did awesome work.
    Blanca Larson
    Friendly Employees and fast response! Professional Customer service and great job! Mahalo Mana for a great job!
    Curtis Yuh
    Kekoa was the technician that came, he pointed out where the awful smell was coming from my neighbors house, he then performed a camera inspection of my drain system. He showed me everything that was going on in my drain system in conclusion he recommended a Hydro cleaning. I believe that he is a very Cool, Professional, Friendly young man, there is a lot more positive things I'd like to say about him but it's too much for me to text. One last thing I'd like to say, I was very impressed with Kayla's phone greeting. I called numerous different plumbing companies but I was so impressed with the way Kayla answered is the reason I chose Hawaii Drain Pros
    Annettte Mendiola
    Kekoa did a camera inspection today. He went above and beyond to explain everything to us very thoroughly as the camera was going down. We will definitely call Hawaii Drain Pros for any future problems. Kekoa was awesome!!!
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    Trusted Backflow Prevention Services in Oahu

    Aiea
    Camp H M Smith
    Ewa Beach
    Fort Shafter
    Haleiwa
    Hauula
    Hickam AFB
    Honolulu
    Kaaawa
    Kahala
    Kahuku
    Kailua
    Kaneohe
    Kapalama
    Kapolei
    Kunia
    Laie
    Makiki
    M C B H Kaneohe Bay
    Mililani
    Pearl City
    Pearl Harbor
    Schofield Barracks
    Tripler Army Medical Center
    Wahiawa
    Waialae
    Waialua
    Waianae
    Waikiki
    Waimanalo
    Waipahu
    Wheeler Army Airfield
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