Dn Diamond Plumbing, Inc.

Licensed plumber in San Antonio, Texas

TSBPE licence activeLead-Safe4.9(802 reviews)

Dn Diamond Plumbing, Inc. holds TSBPE licence M-36865, active, licensed since 12 Feb 2004, rated 4.9 from 802 Google reviews.

97score

Report card

  • Licence activeTSBPE #M-36865, Responsible Master Plumber DALE NASH. Issued 12 Feb 2004, expires 30 Apr 2027.
  • Licensed 23 yrsSince 12 Feb 2004.
  • Liability insuredAmherst Specialty Insurance Company, valid to 10 Aug 2027.
  • EPA Lead-Safe certifiedFirm NAT-F272342-1, valid to 22 Oct 2029. Required for work disturbing paint in pre-1978 homes.

Checked against the Texas State Board of Plumbing Examiners (TSBPE) register on 4 Nov 2026.

Google reviews

4.9(802 reviews)
Kris K★★★★★ 3 weeks agoView on Google

Dillon did an amazing job for us! He moved one kitchen faucet to the laundry room sink. He installed a new faucet in the kitchen and he hooked up the laundry rm sink plumbing. And he was thorough with his explanation of services.

Russell Stanley★★★★★ a month agoView on Google

Called this morning for urgent case of water streaming from outside of the house coming into the house. The service reception says they did not have availability for today but will try to work us into the schedule if they could and in fact she did; much appreciated!. Service tech Dillon Garcia came out and took care of the problem quickly and proficiently; much appreciated. We are very thankful for the Diamond Plumbi…

Patti Pedigo★★★★★ a week agoView on Google

Dillon was courteous, got right to work, and did a great job. He and his helper cleaned up afterwards and tested their work to ensure it was correct. I was definitely pleased with the work.

cris falcon★★★★★ 11 months agoView on Google

The entire crew did a great job! Chris, Jimmy and Trinidad were true professionals. They waited all day until the utility locators showed up. When the locators were done, they wasted no time in fixing my problem. I can’t thank them enough for their patience, professionalism and the quality work they provided. Y'all are the best!

Brian Clussman★★★★★ a month agoView on Google

I highly recommend Diamond Plumbing. I had a gas pool heater problem that was very stubborn to diagnose. The heater repair people told me that it was a gas problem and a gas company told me it was a heater problem. Initially, Austin installed a new regulator at the heater as that is what the heater company told me it needed as it wasn't getting enough gas. Unfortunately, (but not Austin's fault as there were othe…

Read all 802 reviews on Google Reviews and photos from Google, 4 Nov 2026.

Why it ranks #3 of 226 plumbers in San Antonio

Years licensed weight 30100%
Complaint record weight 25n/a
Bond weight 10n/a
Google reviews weight 3594%

Score 97 / 100. Claiming this listing or using Theo never changes it. How we rank

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