H3O Water Systems

H3O Water Systems handles pool service work out of Cibolo and covers the San Antonio area for residential, multi-family and commercial clients. They build new pools, handle renovations, leak detection, irrigation systems, pump and filter installs, and related outdoor work. The company has offered these services since 2006 and lists design, construction, pool leveling and amenity projects among its offerings. Reviews name Amanda for tile and plaster choices during renovations, Robbie for locating and fixing cracks that stopped daily water loss, Tony Moore for overseeing pool and sprinkler jobs, and Scott for pump estimates.

Customers describe full pool rebuilds on older in-ground units, drip irrigation setups that cut water use in yards, sprinkler installs with front and back coverage, and quick leak repairs on both pools and irrigation lines. Several mention retile and replaster jobs plus new equipment like Polaris systems that left the pool clean and running right. Others note honest evaluations that avoided unneeded deck or plaster fixes, and follow-up visits that resolved issues on the spot after initial work.

Work happens on the San Antonio metro and Central Texas sites with mixed reports on timing and communication. Some jobs finished on the quoted schedule and price with daily cleanup, while others saw repeated reschedules tied to vehicle problems or missed weeks without notice. Pricing came in higher than other bids on at least one project, and a few reviews noted limited on-site supervision when subcontractors handled the labor. Response for leak calls was often same-day or within an hour in positive cases.

Google shows a 4 rating from 55 reviews. Common points include solid results on pool and irrigation repairs alongside complaints about scheduling gaps and billing follow-up. DIRT Score 3.5 from N reviews on Finds.

DIRT Score = confidence-weighted rating across verified review platforms. How is this calculated? →

“I was on the lookout for a cost-effective Sprinkler irrigation system in San Antonio which would ensure an optimum amount of water usage and prevent my plants in the garden area from getting rot. Luckily, I got to know about H3O Water Systems and hired them. The experts marvellously designed an effective drip irrigation system, which works efficiently, saves water, helps my plant to grow and prevents me from paying costly water bills.”

“After shopping around for a few months, I chose H3O to help update my backyard. The customer service was great and didn’t seem to mind my endless questions. Work was done in a timely manner and our pool is gorgeous.”

“Highly recommend this company for all of your pool and outdoor amenity needs!! Amanda was so helpful by providing multiple options/colors for the tile, plaster and coping when we renovated our pool. The whole team brought my vision to life and I could not be happier!”

“H3O pricing was about double what we received from other contractors, but we were impressed with their sales delivery and promise of quality. H3O had no supervision on the job throughout construction and subcontracted all of the work out. There was also no quality assurance or project management. No planning went into selections. H3O was to match existing finishes, but they did not check availability until the week they needed materials. Then they told us they couldn’t find them and left it to us to figure t out. They made a number of design changes without telling us like replacing our infinity line overflow with a 3/4” pvc jammed through the wall in the most obvious place. The concrete pour had no vibration and when forms were stripped. Shows them where there was air entrapment and nothing was done. I could go on and on.”

“We are writing a review for H3O Water Systems because they did a great job on our new sprinkler system! We decided to install a sprinkler system in our front yard but didn’t really know the process. They were very knowledgeable and told me all my options and then pick one that best suited my lawn. I highly recommend them to anyone who needs any irrigation services in San Antonio!”

“When they come, they do a good job. Terrible customer service. I was "skipped" in the schedule a few times with no explanation. After confronting them, having to prove to them what my scheduled weeks are and that they skipped my entire week, they finally sent someone out. I didn't get my emailed invoice so I didn't know to pay...once i realized i had not paid them in a while, i immediately paid them. The next week they didn't show up. When i called and spoke with a "manager" I was told they cancelled my service this week and rescheduled me for the next week because my payment was late. Did they call to tell me this? Nope. Did they call to ask where my payments was or if i received the invoice? Nope. Did they call to let me know they cancelled my regular service week and rescheduled me for the next week? Nope. Zero communication from them to me. For me it was 4 strikes(skipped service dates), and you're out. It really is a shame, because we have used H3O sprinklers for years and years for anything sprinkler related and Tony and his adorable boxer were awesome!! We recommended him to anyone that mentioned sprinklers. Unfortunately, when they opened the pool division in the last year ”

“Very professional, knowledgeable and trustworthy. H3O provided a comprehensive plan for irrigating our front and back yard with sprinklers and drip lines. They did a great job doing up front planning. The project went smoothly and to results were exactly what we discussed. We called them a year after to investigate a leak and they were responsive, identifying the issue and resolving on the spot. Highly recommend.”

“I contracted with H3O to completely redo my 60 year old in ground pool. The service I received from this company was exceptional and I highly recommend them to anyone who needs extensive repairs/ remodeling of an inground pool. They consistently showed up on time, did exactly what they promised and cleaned up every evening before they left. The project was completed in the time they promised at the price they quoted. They followed up after the job and I continue to use them when I need pool service.”

“I had H3O come out and check my pool to give me an estimate for repair and or renovation work. I had a concern that some movement in my decking and associated hairline crack in my pebble tec plaster if not repaired might cause significant damage to my pool. I appreciate that they gave me an honest evaluation that other than for some minor cosmetic reasons that they did not see a need for me to do anything at this time. In a few years when it is truly time for a complete pool renovation, I know I'll get honest work from H3O Water Systems.”

“I have used H30 water system before for leak detection on my pool with great service and was fixed correctly. I had another problem and Robbie came to the rescue again, great service and located cracks in the pool causing the leaks and water loss. I was losing an inch or two a day, fixed the cracks on Tuesday and I have not added water in 4 days. Great job Robbie can't Thank you enough.”

“My 20+ year old pool needed some new life. I asked H3O to retile and replaster the pool and to install a new pump, filter and Polaris setup with the associated replumbing. All work was completed to my utmost satisfaction. Awesome job! From the estimating to the scheduling, demo work, tiling, plastering and equipment install, all work was timely, efficient and professionally performed. Workers were friendly and fully explained what was being done. Upon completion, all evidence of construction work was completely cleaned up. I highly recommend H3O Water Systems for any pool work.”

“With my full schedule, I don't have time to maintain my pool. H30 has been my lifesaver. Since then there were no issues with a clogged pipe in my pool. They're are very reliable and deliver with the best results.”

“I needed to have my Polaris booster pump replaced. H3O scheduled an appointment. Great. Then they called to reschedule. OK. And then again, they called to reschedule (something to do with the tech's vehicle not working). Hmmm.....And then again, they called to reschedule (again vehicle issues). And finally, on the day I was supposed to finally have it installed, they rescheduled again, stating that the pump that was supposed to have been installed weeks ago - wasn't in! What!?! I cancelled everything. I do not recommend. UPDATE: The tech who originally came out to diagnose the problem with the pump stated that I needed a new pump, and that the pump and installation would cost $772.00. WRONG - the pump only needed a new impeller - cost: $43.99. Just an FYI.”

“H3O is a great company to do business with! They were very quick to come out and resolve my issues, all for a very reasonable price! They have done work on both my irrigation system and pool, and I would most definitely be using them in the future, and would recommend them to family and friends!”

“I had another pool service company in Houston and always thought my pool looked great... until I came to San Antonio and switched to H3O. These guys know their stuff! They are knowledgeable and efficient with their chemicals and do a thorough cleaning job every time.”

“NEVER USE THIS COMPANY!!!!!!! They are very unprofessional. I had a so called technician come to my property in a muscle shirt and shorts, with no pen or paper asked to use mine also told me his phone was dead if I could take pictures and send them to him. Technician didn’t solve any issues I wanted my pump replaced that’s it how much were you going to to charge me to replace my pump as well as replace sand for one of my filters. Hmm he didn’t solve anything but yet was hounded to pay the diagnostic fee.”

“Horrible experience, pump wasn't working so I figured since it was so close to winter I'd look into buying a heated pump once and for all. Called the technician and told them my wife would be the one at home but if they had any questions on the work to call me. They steamrolled my wife with "diagnostic" work about the known broken pump, a pressure gauge and a pool light, completely neglecting a quote for a heat pump which was the only work I wanted. They hassled my wife for payment on that fee, saying it would be waived if we did the grand of other work they recommended. In the end she was so stressed I decided to pay the fee so that they would stop requesting by email and phone for her to pay them, I got a letter almost two months after their work and sent them their money so that this would end. Going back to my old pool company, they were backed up on work but they are worth it, I don't know how these people have so few reviews, they must be doctored.”

“H3O designed and built our pools, deck, and sprinkler system. They did a beautiful job on all. Their customer service is top notch! Tony Moore is dedicated to making sure the job is done right and that his customers are satisfied.”

“I was never given an estimate on a pool pump with labor, Just labor. The estimatet was $349.00. I was never given an estimate by Scott or anyone else for the pump. I could have bought the pump online for $250-279.00 and had another company put it in for $175. When H30 finished I was handed a bill for $713.43 . I am 74 year old widow on a fixed income which I informed the girl in the office. I gave them a check for $350.00 that's all I had.”

“Great Services A month after H3O expertly repaired a leak in my irrigation system, I found my BFP valve flushing water to the ground with system off. I knew just who to call! Repair of my Backflow Preventer Valve during this drought was made within an hour of my call by your courteous, knowledgeable and efficient associate. Thanks H3O, y'all are my Heroes!"”