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.
• Water Softeners
• 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
• Irrigation Timers
• Irrigation Valves
• 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
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
I had made an appointment for Thursday, but was pleasantly surprised to receive a call on Wednesday that Eloy could come out a day early. They serviced my RO water system and soft water system. They exhibited excellent attention to detail and worked in a professional manner. When finished they cleared explained what we needed to to do move for the coming year. I will certainly use them again for annual inspections and servicing.
Allegiance’s technician Eloy Garcia arrived promptly, explained and showed me the issue with my water softener and also he noted some water in tray beneath the water heater that I had even noticed. He fixed the motor on softener and then removed and replaced my water heater as he noted it was still under manufacturer’s warranty! I am so please with his prompt, thorough and efficient service. I highly recommend him and Allegiance Eater Services!
I have used Allegiance for years now and every time I'm still amazed at how courteous and professional they are. Every year I have my R.O. filter changed and my soft water big blue filter changed. They also perform my mist services for the backyard with shutdown for the winter and startup in the spring. 100% recommend them!
Installed water softener
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.
Fast, reliable. Polite repair people. Fair price.
Allegiance Water Services sent a repair man to fix a broken sprinkler head.. He was courteous, pleasant and well informed. He fixed the head and checked to be sure the whole system was working again correctly. I appreciated his service. Thank you
Ruben and Juan were the best! Great attention to details, all zones were color coded, and helped us with the use of the Rain Bird app. We couldn’t be happier with the great work!
Technician patiently walked me through my current setup, identified multiple leaks, and looked to save money by combining and eliminating unneccesay zones.
Eloy is just awesome, friendly, detailed, professional and took time to walk me through all work completed, highly recommend.
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.
Allegiance and Eloy are my "go to" plumbers. Prompt, efficient, cost effective and courteous.
Would highly recommend. Lawson was very professional.
Johnny Gonzales was very professional, courteous, and thorough.
Paul is all of the above plus irrigation systems technologically advanced.
Annual service on RO water system. Rommel was friendly, fast and professional.
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...
Friendly, knowledgeable and efficient.
I had Eloy come by to repair a water softener system that had failed, as well as replace the filter in the RO system. He was courteous, knowledgeable, responsive, timely, and really knew his stuff.
Very prompt service and were there at scheduled times. Both tecs that have been here, Dan and John, were outstanding. Very professional staff including Josh. Pricing is reasonable. I would highly recommend this company.
Excellent communication. Reliable.
Paul and Allegiance are the best!
He installed a water softener system and did a great job. He also updated our r/o system. Very professional
Lawson was incredibly friendly, informative and professional. David was also a standout for his strong communication and customer service. 10/10 would recommend to friends and family.
Excellent service and water quality!!
Will make sure the job gets done!
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!!!
Excellent service. Rommel was very professional. I will call on them again. Marc C.
Extremely impressed and satisfied with professionalism and service. A real person always available by phone unlike several competitors I tried to reach. Eloy the tech was the best in all respects.
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...
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...
Assessed my sprinkler system. Told me and showed me the main issue I'm having. No charge! Very nice and knew the answers to my questions. Didn't try to sell me anything. Will have these guys over everyone else I've done business with.
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.
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
![]()






