Plumbing reviews in Phoenix, Arizona

We are long-time customers. Joe and Ryan (father-son duo) are wonderful technicians, especially Joe. He works very hard and is very efficient. They are really 5-star plumbers.

Thank you for another superior experience, Diamondback Plumbing. I wish everyone can also get help from this 5-star company.

And on another note, thanks for Zach Cope for recommending wonderful and honest men for us.

God bless you all!
Best wishes for you and your company!

One of your old customers,
Lily Gaia

We have used Diamondback many times. Called them late morning for a leaking toilet and they were at our house and had it fixed by mid afternoon. Eric was our service tech and he was professional, friendly, very experienced. Reasonable rates too.

I contacted diamondback plumbing to fix a faucet and a drain, the technician came out right away and fixed the issues very efficiently. I then mentioned a couple other plumbing issues I had around the house and without hesitation he fixed those too! The price was also much lower than I anticipated. Highly recommend!

I had a very negative experience with one of this company’s drivers while on the freeway. The driver was aggressively gesturing at me to move, even though I was driving safely and within the speed limit. They continued with unnecessary hand gestures and eventually flipped me off. This kind of behavior is unprofessional and dangerous, especially for someone representing a business on the road. I hope the company addresses this issue with their drivers to ensure better conduct in the future.

I called around 8am to set up an emergency service for a clogged toilet. They had a technician out the same day and the price was fantastic. The technician made sure to tell me exactly what the problem was and fixed it quickly. They cleaned up and did not leave any mess behind. I could not have been happier with the service we received. I will definitely keep them in mind should I need another service!!

I had a tough experience that turned out to be good. As a new renter there was confusion on my part and I didn’t realize the house was under a septic system. I had some work done to “unclog” the system and technicians came out. At the end of the day the problem wasn’t fixed, there was a high bill, and there was some mixups on the billing. I worked with management and they dealt with my concerns in a professional manner. We were able to come to an agreement and resolve the issue. I don’t think companies get enough credit for handling mixups and tough situations so I wanted to leave this review and say that even if things go unexpectedly, this company will still work with you and I was really grateful for that. I was in a tough spot just after I moved and they helped make it not be unsustainable.

Justin and Daniel were the technicians on an A/C replacement at my place today and these gentlemen are absolutely top notch! They were respectful, clean, and just great men. If you're going with this company I cannot recommend requesting these guys enough!

I needed a pressure reducing valve installed on my home. After calling around, Diamondback Mechanical offered the competitive price. Not sure if he is the owner but Steve Herzog called me back very quickly to schedule the installation. The plumber (Scott Andrews) was timely, did the job well (no leaks and reduced the pressure going into the home), and had no problem answering my questions as he did the work. If asked by buddies, I'd recommend this company.

Dyllan and Ryan did a great job and were very professional. I called in the early afternoon and they were able to come out same day. Thank you very much for the great service. I would definitely recommend Diamondback Plumbing to anyone!

Had a water heater go out on a Sunday ... DiamondBack Plumbing was able to come over with in just a couple hours and have it replaced. Price was absolutely fair and more than competitive. Justin performed quality work at the utmost professional level. He was personable and patient with my questions. I therefore scheduled a few more small items to be done later in the week around the house ... couldn't be more pleased.

Been a loyal customer of Diamondback for almost 10 years. Called yesterday for a plumbing issue they worked on, but didn't fix, in May and told me they are not accepting new appointments this summer. Nice. Won't be using them ever again.

I live in a complex that contracts this company for our cooling system. My studio apartment was always in the range of 78-81 on a regular basis (not including when I cooked ). I had two different techs come out three different times without any results. I will say that the first tech did replace old parts and put in new parts, but it didn't rectify the problem. The second tech came out twice and said the problem was fixed, but once again I was having the same issue. These three visits happened in a two week period prior to today July 8,2025. Now today July 8, three other techs came out and spent a lovely evening (4 hours until 11pm) with me correcting the issue, replacing more parts and hopefully getting the job done! So I want to send a shout-out to Anthony E., Daniel P, and Justin W, for finally doing it right! Thank you Diamond Back Plumbing! From Apt 222! P. S. I truly hope all goes well! I'll post an update if my air is where it should be! Good morning! This is an update to my post from two days ago. Well, I'm still having cooling issues, nothing has changed 😞. I don't blame the techs that have been coming out, I believe that they might have to demolish the whole complex and start over 😭😭😭. No hard feelings as far as I'm concerned ☺️.

An emergency in the morning became a solution by the afternoon. A busted water heater caused much chaos but Joe came by before noon and had everything fixed up sooner than expected. Great service. Competitive prices. Been happy with Diamondback for years.

A little over 2 years ago, we paid around $9k for a new a/c unit. It had to be repaired a year later and it went out again a week and a half ago. While the unit itself is under warranty, the labor warranty ended at the 2 year mark. We understood, although 2 years seems short for a company to stand by their own work.

It took 3 days for a tech to come out. He said he needed someone else to come out and would call us later that day to schedule this. We were never called. At day 6, someone else came out and confirmed what needed fixing. He said he’d get back with us regarding pricing later that day. He also never called. On day 8, someone calls us to collect payment for the techs coming out. We told them we don’t even have our quote yet. This person said he’s working on it “right this second” and will be in touch in 24-48 hours.

We are now 9 days without a/c in the middle of Arizona summer without any concrete arrangement to actually rectify the situation. While it’s frustrating that the unit is barely 2 years old, the lack of communication and false promises are extremely unprofessional.

Scott was so amazing and informative. Thank God I kept calling as other plumbers wanted to rip through my walls. After a pressure check and complete review of my bathroom, it was determined that I don't have pipe leaks but just a tenant who likes to splash too much. Saved thousands of dollars, unreal but will only go with diamondback plumbing for all the rentals from now on. Tha k you so very much for your honesty and thorough knowledge!!!!

I recently had a plumbing emergency that flooded my neighbor below. I called DiamondBack and they send me a technician. Nick showed up right away. He was very professional and explained exactly what happened with the plumbing. Nick made the repair through a very small cut in my new cabinets and he was able to save my brand new kitchen from being torn apart and saved me thousands of dollars! Nick is a true professional and I will hire him again and recommend him to others!

My rental's Management Ompany uses a variety of contractors, most mediocre at best. This time they called Diamondback Plumbing to help fix a leak....... Requiring more than two visits, these guys diligently took their time figuring out what the real problem was. Brandon in particular was a pleasure to deal with- texting me his arrival time, explaining what the different issues might be, . He even found an innovative solution for me while a specific part was ordered. Offering 24/7 service, extremely knowledgeable, and dependable, these are the guys to call if you need help!

These guys charged me over $700 for a 2hr. Job fixing a meterbox leak. After materials it was like $300 a hr. Wow in flagstaff plumbers are around $140 hr. Still looking around for reasonably price plumber . Tech was good though . To bad they overpriced.

I live at Capri on Camelback apartments. The apartments use Diamondback Plumbing as the plumber for the complex. I have been trying to get a leak fixed in my bathroom that is coming from the toilet in the apartment above me for two weeks now. The plumber finally came last night. He cut a hole in the ceiling and then left saying he would be right back. It is now the next morning and he still hasn’t come back and the leak is still going strong. I have had no additional communication from the plumber. The apartment complex said that they found out that the plumber had left the complex without telling them. Diamondback didn’t contact me or the apartment complex. Terrible communication and service!! Wed

Shout out to Shannon and all our guys at Diamondback Plumbing for Once again, showing up early, providing 5 star service, and giving us the most bang for our buck! Shower valve while I wait? Yes Please! Drywall cut neatly and put back? Well thank you very much fellas! We will continue to call Diamondback for as long as I work for Greystar! Thanks again Diamondback! Richie

Unfortunately, I am forced to use this plumbing company by my landlord and would never choose to work with them again if I had a choice.

Their lack of professionalism and communication has been awful. They were approved to come on a scheduled day and then failed to communicate if or when they would return. We were left without working toilets for several days, and I had to call their main office myself just to get a vague timeframe, which they then did not honor.

They showed up unannounced, including on a Saturday night, without authorization. When my employee arrived the next day, our business had been left in unacceptable condition: mud tracked throughout the studio and smeared all over the bathroom. This is a client-facing business, and leaving a space in that condition is completely unacceptable.

They also claimed work had been completed when it had not been and repeatedly showed up without notice. The lack of accountability, communication, and basic respect for a tenant’s business is alarming.

Trashing an active business, leaving it dirty, and disrupting operations is not how any professional contractor should operate. I would strongly caution any business owner against using this company if you have a choice.