Plumbing, Water Treatment & Irrigation Services
Essential Residential and Commerical plumbing services, the best water treatment technology, and quality irrigation solutions at a fair price. Contact UsPlumbing Services
Quality. Reliability. Professionalism.
Water Treatment
Cleaner, clearer water for your entire home.
Irrigation
Better irrigation means better lawns and gardens.
Plumbing
Allegiance Water Services is proud to offer a comprehensive list of residential and commercial plumbing services to fit your needs. We have quickly developed into one of the most trusted plumbing companies in Scottsdale, AZ and the Greater Phoenix area through our commitment to quality customer service.
• Faucets & Fixtures
• Plumbing Leak Repair
• Toilets, Tubs, Showers
• Clogged Drains and MORE!
Water Treatment
You can count on us to provide the very best in water treatment solutions for your home. Everything from whole-house water filtration and water softening to point-of-use drinking water systems, such as reverse osmosis. We have an unmatched commitment to excellence in providing professional service for all of your water treatment needs.
• Whole House Filtration
• Purified Drinking Water
• System Maintenance
• and MORE!
Irrigation
Allegiance Water Services is your leading provider of residential irrigation system repair, replacement, or installation throughout Phoenix and the surrounding areas. You can trust our professional technicians to do the job right, ensuring years of efficient and effective water use for a beautiful landscape.
• Sprinkler & Drip Installation
• Sprinkler & Drip Repair
• and MORE!
We know water, inside & out.
Our Company
At Allegiance Water Services 5 Star service isn’t our goal, it is our foundation. We take pride in being the company that builds trust with our clients every step of the way. We provide essential plumbing services, the best water treatment technology, and quality irrigation solutions at a fair price.
Plumbing, water treatment, and irrigation needs come in all sizes. Allegiance Water Services offers a full range of solutions for your home throughout the Phoenix metro area. Our professional and courteous technicians and office staff have the skills and experience necessary to provide you the highest quality service possible.
Check Out Our Customer Reviews
I have used Allegiance Water since 2018. The company and service is outstanding. John Gonzales was our repair person for this call. He changed our RO water filters, installed a leak detector for the RO, and repaired our water shut off valve. He was GREAT!!! He is very knowledgeable and dependable. I highly recommend Allegiance and their team. Thanks
Lawson Key was very professional, respectful and kind. He did a great and solid job of installing a new faucet for our water filtration system!
Fixed my backyard sprinklers without having to put a whole new system in.
Very professional and responsive. No guess work as to when they arrive. Explained everything and cleaned up yard after they were done. Recommend...
Excellent job! Will use them again.
Allegiance has been great. Eloy was perfect. I recommend this company highly and will certainly continue to use them in the future.
Had an issue with my sprinkler system, something failed and I had a big wet spot on the side of my house. Called in and was helped with instructions on how to turn off the sprinkler side so no water would go to it until a repair could be scheduled. Paul comes out and shows me the problem, we set a time and he fixes all of that, THEN while testing, just waltzes into the spraying sprinklers and dials in where the water SHOULD have been spraying, like " oh, that's the wrong direction to spray for this area..." Then he programs the whole thing to fix my already mediocre lawn and bushes, told me what to do to improve my lawn through yard care and got into his car with soaking pants and thanked ME! 10/10.
Had a hot water heater replaced today; Lawson did a fantastic job. The workmanship is very professional. Lawson was on time and did exactly what he said he was going to do.
Highly recommend for Navien install and servicing.
Paul is all of the above plus irrigation systems technologically advanced.
John was on time and professional. He fixed the leak in my backyard system and tested it to make sure no further leaks. He also checked the front yard and found an additional leak that I hadn’t noticed and also fixed it in the same trip. Super happy with the great service and will definitely call these guys again for future plumbing repairs outdoors and indoor.
What a great job by everyone involved in this process!! A new drip system was installed in both the front and back yards - first time a system was installed by real professionals. System works great and is easy to use!! Highly recommend Allegiance!!!
These guys replaced my Water Heater today. Prompt, fair price, easy to work with. 5 Stars is not sufficient to rate their quality
Lawson was punctual, polite, clean and knowledgeable. He serviced the RO system. Recommended an alarm to detect a leak. Will think about it.
I had an exceptional experience with Allegiance today. My old gas water heater needs to be replaced. I called Allegiance yesterday and discussed with David who is very knowledgeable, transparent and told me pros and cons among the different water heaters. I decided to go with 50 gallon Bradford White water heater. Ruben came in next day and clearly explained to me what is the process. He is excellent, very skillful and told me how to maintain it. He cleaned everything afterwards. I am very happy with their services and will call Allegiance for my plumbing issues for sure. Ruben from Allegiance Water Services did an excellent job again today. I had water hammer issue for a couple of months and my pipes coming out the main pipe weren't connected right by a previous plumber. The irrigation system controller needs to be replaced as well And it is now upgraded to an enabling phone control unit. Ruben did an excellent job on replacing the unit and repiping everything. It only took him an hour and they work great! Ruben is very experienced, knowledgeable and efficient. It wouldn't go wrong for Ruben to do your plumbing jobs.
I’ve used this company for multiple services! And they are great at everything they do. They are super responsive to all of my needs and are always on time. I will never use any other company!
Fast and reasonable.
Technician patiently walked me through my current setup, identified multiple leaks, and looked to save money by combining and eliminating unneccesay zones.
John was extremely professional and courteous explaining in detail the problems with my irrigation system. He made the repairs and added recommendations as well. He was the best! I highly recommend! Pull
Will make sure the job gets done!
I was in a panic when my sprinklers started making loud noises at 5:30am. I called Allegiance water and was able to get a service rep out the next day. They...
Technician was here within 30 minutes. Did a great job for a fair price. I highly recommend Allegiance…..
Excellent communication. Reliable.
Installed water softener
We had a leak in our drip system. Johnny was awesome. He took the time and explained what the problem was and how to get it fixed. He didn't have the part...
He was wonderfully informative and polite. Educating me on my irrigation system, as I'm from Michigan and very unfamiliar with them.
Allegiance Water Services are prompt, thorough, and professional. I found them when they did work on my next door neighbor’s irrigation system. When my irrigation started leaking and watering weeds, I called Allegiance Water Systems for a quote and then to schedule repairs. They send text messages and emails with links to track your technician or to call them direct. Invoicing is quick and easy to access via their billing system. You have everything in writing with links to confirm, deny, or modify your service needs.
Great company. We would highly recommend them. Courteous, professional, fast response time. Very reasonable rates. This is the third time we have used their services and have been very happy every time.
Excellent service. Rommel was very professional. I will call on them again. Marc C.
I am so grateful to Lawson for helping me with my spinkler system. He is knowledgeable, kind, and patiently answers all my questions. I trust him and Allegiance Water Service for all of my home’s plumbing needs.
The service tech was pleasant, courteous and knowledgeable. He tracked down the problem and eliminated it as quickly as possible, as he was aware that what his time cost us in getting the job done.
Valley Wide Service
Anthem • Avondale • Buckeye • Carefree • Cave Creek • Chandler • Fountain Hills • Gilbert • Glendale • Goodyear • Laveen • Litchfield Park • Mesa • Paradise Valley • Peoria • Scottsdale • Sun City • Sun City West • Sun Lakes • Surprise • Tempe • Tolleson • Youngtown
![]()






