I would highly recommend Neptali/GCS Backflow Services. Although he was not able to complete the…read morework I needed done, he was thorough, patient, and provided an exhaustive list of solutions and alternatives. He responded to request for quote quickly and was out the next day. I would definitely recommend GCS Backflow!

From the owner: GCS Backflow inspects, repairs and certifies backflow assemblies utilizing experienced, TCEQ…read morelicensed professionals. We provide the following services: new installation certifications, annual compliance re-certifications, and device troubleshooting and repairs. We focus on the certification of backflow prevention devices for homeowners, landscapers, plumbers, builders, and business owners. Proper backflow prevention device testing and maintenance is essential for compliance to regulations as well as avoiding costs incurred due to a faulty backflow device. GCS makes it easy for you to stay compliant. Call today and see why GCS stands for Great Customer Service.

This is from my mother:…read more Thank you so much for your Quick Response time and how quickly that you all were able to come out and get our plumbing problems fixed and running again! Thank you Brandon! Very Efficient and Professional! He Asked a couple questions about our issues and got straight to work, in fact came out of his truck carrying the channel locks he knew he would need to get the job done! Sunday morning we needed immediate help, so we search and called around for the "emergency on duty" plumbers. Everyone was too busy to help, but one (not MY) said they could be out in an hour and 11 hours later they still hadn't come - they just kept calling back and saying 2 more hours. :( My daughter told me earlier in the day to try MY, and at this point, I wished I would Of listened to my daughter and Called/Text My Plumbers when she told me about them. Anyway I'm glad we ended up calling them! Their response time was less than 30 minutes and Brandon came out and got the job done in about 20 minutes or less! Thank you, Thank you, so glad we made that call! I know who's getting our plumbing business next time we need it! And to top it off the price was very reasonable as well!

I am so disappointed in Micheal and his work. I would not recommend Andy single females using this…read morecompany for any work. I have been using my plumbing services for several jobs from backflow to plumbing issues. He is normally on time and comes when he says that he will show. I have been using this plumbing services for a few years and never put it together that he was sabbotaging my backflow system for several years. I have had to pay him several times to fix a busted backflow after the winter ends. Last year he pretty much guaranted me that my backflow would not burst because he shut it down properly. Before summer got to hot I contacted Micheal Young "My plumbing company" to complete the yearly inspection. He told me that I would be the first on his list to get my backflow inspected. He never showed up after several text in asking him to complete that inspection. He finally answered a phone call and stated that he had a big job that he was trying to complete and he would get to me before he went out to do the big job or after hours once he finished work for that day. I told him I would prefer to get it completed before he went to his big job. He never showed up. I texted, I called and never received a response. This was in April. This is now August and my system was still down and I was having to use water hoses to try and keep my yard from dying. I finally called City of Killeen and received a list of backflow companies and had one company to come out to only show me that my whole backflow PVC system was busted along with the bell. After having to pay $303.46 to have my system repaired I contacted Micheal to let him know that I had to have my system repaired due to the PVC and the Bell needing replacement. I felt he should share in that cost since he lied about coming to fix the system and not properly securing the system. Through his text he asked me if I was sure that I used his company and not Micheal Dial from A&D? I would think I would know who I used if I have your services locked in my phone. After sending him pictures of my backflow system he finally sent a text stating that he was the one who fixed my system and completed my test inspection last year. He asked for an invoice receipt from the company that repaired the system. I sent it. He then says they did not stated what they repaired when in fact they stated exactly what they repaired on their invoice. I sent him pictures of the broken PVC in my trash can along with the repaired backflow system. Micheal wanted to continue text conversation after stating that he was headed to another job yesterday morning. Being a plumber this dude stated " I'm just trying to understand how it busted like die to freezing do the was pressure or an impact Etc?" these are his words exactly. I finally was feed up with his skating around through text instead of being a professional and taking time to call to resolve the issue and told him through text that I want my reimbursement since he guaranteed by mouth that I would not have to fix my back flow again. His question 'so now you're going to claim I did an incomplete job". I told him no to keep texting me these bs conversations. Just send me my money. He then tries to use this as an insult and states "I hope you don't think your going to get anything out of me talking to me that way". This man has stood in my acctic and literally cursed his son out so loud that I could hear it in my home. This company is unprofessional and unaccountable for his mistakes. Be mindful, if you do use this company because he will try to use his home issues for sympathy.

I've had backflow testing with 4 different companies over 25 years. I have to declare that TP…read moreBackflow Testing Inc. is the BEST EVER!! So mad I didn't find him earlier. Mr. Phan was very timely, efficient, knowledgeable, and responsive. What's more amazing is his price! Wow! Couldn't ask for a more stress-free, wonderful experience. Whenever I see the initials T.P., I used to think of toothpaste (we are a dental office). But now when I see T.P. or TP, I think of Tan Phan! Tan Phan is the Man!! Call him! You won't regret it! (P.S. No, I'm not his friend or related to him in any way)

I awoke one morning to the sound of a sprinkler zone that should have been off for hours.  All…read moreattempts to shut the entire system down failed and I was left literally digging and clearing debris to find my Backflow Prevention Assembly.  Only one of its two valves would turn, with the help of a wrench no less, but it was enough to temporarily stop the entire sprinkler system. Enter George and  Diamond Irrigation & Backflow in Austin.  I sought out George specifically because he is a licensed Backflow Prevention Assembly Tester (BPAT), licensed by the Texas Commission on Environmental Quality (TCEQ) and registered with Austin Water Utility.  George responded quickly, he and his crew were onsite in less than 24 hours, and everything was competently replaced.  George even checked the remainder of the system and proactively replaced sprinkler heads and gave me a heads up about a station I needed to keep an eye on.  I really appreciated the consultative service and the price was fair and reasonable.

Incredibly smooth and honest service. George came out, diagnosed the irrigation problem, and…read morerepaired it within a couple of hours. I was shocked at how affordable my invoice was while the level of professionalism and courtesy was admirable and I look forward to a long relationship with Diamond! Highly recommended!! Thanks George!!

Great customer service. From scheduling an appointment to actually servicing the backflow. Highly…read morerecommend The Backflow Guy!

From the owner: We take pride in our work and take care of all of our customers!read more