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 Us

Plumbing Services

Quality. Reliability. Professionalism.

Water Treatment

Cleaner, clearer water for your entire home.

Irrigation

Better irrigation means better lawns and gardens.

Valley Wide Service

Allegiance Water 1st Quarter Promo
Allegiance Water Services for Professional Phoenix Plumbing

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.

Water Heaters

• Faucets & Fixtures

• Plumbing Leak Repair

• Toilets, Tubs, Showers

Clogged Drains and MORE!

Allegiance Water Services are Plumbers in Phoenix and the rest of the Valley

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!

Valley Wide Expert Plumbing Services

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

facebookgoogleyelpOverall Rating
5.0
Based on 415 Reviews
Nancy Pearce
google
Nancy Pearce
October 13, 2023

We have used Allegiance Water Services for several years now, and we have not been disappointed. Very professional, quality work, friendly, reliable.

Lindsey Dempsey
google
Lindsey Dempsey
November 17, 2023

Why should you hire Allegiance? Quality. Dependability. Customer service. Experience. Dedication. Hard work. This company takes quality experience and service to the next level. I haven’t worked with many home service companies who do such a good job like this. From the moment we got the quote, until the minute the job was done, they were reliable and they provided the service we requested. First they came out to inspect the issue. Once they figured out what was wrong, they provided a verbal quote and followed up with a digital quote. I was able to accept the quote digitally and put a deposit down to begin the work. Since our system needed to be replaced, it was quite a process and luckily they had it all under control. They contacted the city and cox communications to flag their underground items so that they knew where to avoid. Then Lawson came out and literally spent an entire day replacing the system. The customer service was above and beyond. Yes there are a million plumbers and irrigation companies out there, but there aren’t as many reputable, trustworthy, licensed and qualified ones like Allegience.

Hengameh Hajisafartehrani
google
Hengameh Hajisafartehrani
June 10, 2023

After 5 years we had water softener , we found out we use soft water for our pool and watering the plants in our back yard , so I called this company they responded fast and the next day they sent their technician Ruben . After we agreed on his estimate , he came the next day. He did awesome job on separating our soft water. Ruben was knowledgeable, fast and reliable. I am so happy with his work and recommend him and this company to everyone.

Megen Blackburn
google
Megen Blackburn
May 27, 2022

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.

Tyler Twibell
google
Tyler Twibell
October 6, 2023

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.

Amber Howe
google
Amber Howe
January 18, 2022

He was wonderfully informative and polite. Educating me on my irrigation system, as I'm from Michigan and very unfamiliar with them.

K N
google
K N
July 21, 2022

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.

Double Helix Las Vegas
google
Double Helix Las Vegas
September 27, 2022
David Flick
google
David Flick
October 13, 2022
robyn stiefeld
google
robyn stiefeld
June 21, 2022
Mike B
google
Mike B
June 7, 2022

Fixed my backyard sprinklers without having to put a whole new system in.

Jason Goudie
google
Jason Goudie
October 4, 2022
Mike Gall
google
Mike Gall
September 30, 2023

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

D M
google
D M
July 21, 2022

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

BobCat Studios
google
BobCat Studios
October 12, 2023

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!

Jim Sultan
google
Jim Sultan
July 15, 2020

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.

Marla B Smith
google
Marla B Smith
September 15, 2022
Connie Cunningham
google
Connie Cunningham
September 9, 2022

Johnny Gonzales was very professional, courteous, and thorough.

B Ferguson
google
B Ferguson
December 6, 2023

Allegiance and Eloy are my "go to" plumbers. Prompt, efficient, cost effective and courteous.

Pat Matthias
google
Pat Matthias
September 22, 2022

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

Sylvia Thomas
google
Sylvia Thomas
September 30, 2022

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!

Michael Oster
google
Michael Oster
July 26, 2022

Josh and the office and service tech Rommel were excellent in every way! Professional, knowledgable service of issues with my water softener.

Karen Bramer
google
Karen Bramer
October 6, 2022
Steve Digges
google
Steve Digges
December 18, 2021

These Guys are awesome! They were on time and on the mark. Service was professional and they did a clean repair. I would definitely recommend them.

Jason Johns
google
Jason Johns
June 24, 2022
Laura Pascal
google
Laura Pascal
November 30, 2020

Annual service on RO water system. Rommel was friendly, fast and professional.

Grant Cook
google
Grant Cook
October 12, 2023

Highly recommend for Navien install and servicing.

Gene Showalter
google
Gene Showalter
September 14, 2023

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.

Jack Coakley
google
Jack Coakley
August 9, 2022

Paul and Allegiance are the best!

Lori Colling
google
Lori Colling
November 18, 2023

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.

Maritza Arias
google
Maritza Arias
September 27, 2023
Laura S
google
Laura S
October 20, 2022

Lawson installed a reverse osmosis system at our new home today. While he was here, he also helped answer (many!) other questions and helped inspect the home’s irrigation system for me. He was thorough, professional, friendly, and patient. Thanks so much Lawson and Allegiance!

Charles Fratantoni
google
Charles Fratantoni
December 6, 2023

Friendly, knowledgeable and efficient.

Julie Reed
google
Julie Reed
August 8, 2022
Bosheng Yang
google
Bosheng Yang
November 9, 2023

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.

Ken Forston
google
Ken Forston
January 11, 2022

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.

Nancy Hall
google
Nancy Hall
June 21, 2022

Friendly and reliable. Does great work!

Derrick Wright
google
Derrick Wright
September 16, 2022
Sam Hodges
google
Sam Hodges
July 22, 2021

I love this business. They go the extra mile to make sure their clientele are taken care of. My hot water heater went out on New Years eve and required a part to fix it. The part was unavailable and Rheem the manufacturer was closed until Monday. John Gonzales from Allegient brought out a new unit and installed it, so that I would have hot water for the weekend. This is a great company, and I am glad that I selected them. UPDATE Allegiance is my go to water company. My house is 50 years old now, so I'm glad I have them to call if I have a problem. Rommel Valenzuela came today to service my filtration system. He was nice, professional and did a great job.

Mark McLaren
google
Mark McLaren
September 16, 2021
Brei R
google
Brei R
July 13, 2022
Murray Sharkey
facebook
Murray Sharkey
recommends
June 4, 2019

These guys replaced my Water Heater today. Prompt, fair price, easy to work with. 5 Stars is not sufficient to rate their quality

2JourMusic
google
2JourMusic
November 21, 2022

Very professional and responsive. No guess work as to when they arrive. Explained everything and cleaned up yard after they were done. Recommend...

Angie morrow
google
Angie morrow
January 3, 2023

Installed water softener

Bill Giles
google
Bill Giles
November 21, 2023

John was great. Professional and courteous. Very pleased with his work.

Joan McCoy
google
Joan McCoy
May 13, 2022
Rob Roberson
google
Rob Roberson
April 20, 2022
Dan McFadden
google
Dan McFadden
August 25, 2022

They answered the phone (after several other business didnt) and came right out to do the estimate and complete the work. Quality is good. Will call next time I need sprinkler/landscaping work.

Nikolas Tavlarios
google
Nikolas Tavlarios
September 15, 2023

Excellent communication. Reliable.

Martin Waldinger
google
Martin Waldinger
October 4, 2022

They have done several projects for us and they were done efficiently and well. I highly recommend them for any water service

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