Desert Diamond Mechanical LLC
Licensed plumber in Phoenix, Arizona
Desert Diamond Mechanical LLC holds Arizona ROC licence 353318, active, licensed since 11 Jul 2024, rated 4.9 from 2534 Google reviews. Bonded for $6,750 with Old Republic Surety Company. No complaints on the ROC record.
Report card
- Licence activeArizona ROC #353318, Specialty Dual CR-37 Plumbing. Issued 11 Jul 2024, renewal due 31 Jul 2028.
- Licensed 2 yrsSince 11 Jul 2024.
- Bonded$6,750 with Old Republic Surety Company, since 10 Jul 2024. Arizona sets the amount by licence type and expected yearly work, so a bigger bond means a bigger business, not a better one. Homeowners can also claim up to $30,000 from the ROC Recovery Fund.
- No complaintsNone on the ROC record.ROC record
- BBB AccreditedIts BBB rating, complaints and reviews are on its Better Business Bureau profile.BBB profile Complaints Reviews
Checked against the Arizona Registrar of Contractors (ROC) register on 3 Nov 2026.
Google reviews
4.9(2,534 reviews)Naydine Reill★ 3 weeks ago
I purchased a brand-new multi-stage air-conditioning system from Desert Diamond Air in May 2026 for approximately $14,000, expecting improved efficiency and reliability compared with the 21-year-old system it replaced. Unfortunately, my experience has been the opposite. Since the installation, my electric bills have been approximately 40% higher—and during the hottest months, nearly double what I was paying during t…
Staff.Bridgette Wilde★★★★★ 2 months ago
We could not have been more satisfied with the exceptional service we received from our technicians Thomas (AC) and Jordan (Plumbing). They did a wonderful job providing maintenance to our 19 year old units as well as checking our hot water heater and plumbing. They provided great tips and explained everything in detail. I appreciated their time and honesty. We HIGHLY recommend Desert Diamond! Thank you Thomas a…
Prof E★★★★★ 4 months ago
I want to take a minute and write about the amazing service and assistance we received today from Daniel Calderon. I called this morning when I noticed the house wasn't cooling (only going to be 114 degrees today). The front office staff was able to schedule a technician for this afternoon. I let them know that I could be available a bit earlier than the scheduled time and they reported Daniel would be aware and woul…
Rob D★★★★★ a month ago
⭐⭐⭐⭐⭐ Outstanding service from start to finish! I can’t say enough good things about Damien. He came out initially to diagnose an issue with our AC blower motor and was extremely professional, knowledgeable, thorough, and helpful throughout the entire process. When it came time to make the repair, he explained everything clearly, answered all of our questions, and made sure the job was done correctly. What really …
LaShaun Tweedie★★★★★ 5 months ago
Exceptional Service from Ian S. and Desert Diamond! I have been using Desert Diamond for years (they even installed my new air conditioner a couple years ago) and they have earned my HVAC and Plumbing business forever. Their latest service only solidified why I will never go anywhere else. Ian S. came out to install a water softener system, Reverse Osmosis system, a pressure regulator and some plumbing rework through…
Read all 2534 reviews on Google Reviews and photos from Google, refreshed every 30 days.
Why it ranks #31 of 215 plumbers in Phoenix
Score 71.7 / 100. Claiming this listing or using Theo never changes it. How we rank
Other top plumbers in Phoenix
See all 215- 1
D W Plumbing Heating & Cooling Inc
- Licence active
- Bonded
- No complaints
- 2
Accent Plumbing Inc
- Licence active
- Bonded $7,500
- No complaints
- 3
Tutko Plumbing LLC
- Licence active
- Bonded
- No complaints
- 4
35th Avenue Sewing Machines and Vacuum Cleaners Inc
- Licence active
- Bonded
- No complaints
- 5
Universal Piping LLC
- Licence active
- Bonded
- No complaints
- 6
Petra Plumbing LLC
- Licence active
- Bonded
- No complaints