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Diamond Plumbing Inc

Plumber · San Antonio, TX

4.9 ★★★★★ 804 Google reviews · 21 photos
96%five-star reviews
70%reviews answered by the owner
Nov 2026latest review

Diamond Plumbing Inc at a glance

Google reviewers for Diamond Plumbing Inc generally highlight punctuality, professional communication, and thorough service for tasks like fixture installation and leak repair. Positive feedback often notes that technicians explain work clearly and complete jobs efficiently. However, some low-star reviews criticize inconsistent workmanship, such as improper installations or damage to property, and describe instances of poor follow-up or unexpected costs that contradicted initial estimates.

  • Google rating: 4.9 out of 5 from 804 reviews (96% five-star).
  • Reviews on this page: 804 Google reviews (611 with written comments, 21 with photos).
  • Owner responses: the business replied to 70% of reviews.
  • Most recent review: November 9, 2026.
  • Service: Water Heater Installation Service serving San Antonio, Texas.

Data from Google, last updated November 11, 2026.

Star ratings

804 Google reviews we collected

  • 5 stars77196%
  • 4 stars142%
  • 3 stars30%
  • 2 stars51%
  • 1 star111%

Praise vs complaints

Phrases our text analysis found in 611 written reviews

  • Praise1,19898%
  • Complaints222%

Topic share

How often each topic comes up in the written reviews

  • Staff & attitude36830%
  • Speed & response28924%
  • Quality & results22619%
  • Would recommend12911%
  • Communication1059%
  • Price & value655%
  • Honesty & trust383%

What customers talk about

We read 611 written reviews and marked every phrase about these topics. The same colors are highlighted in the reviews.

  • “They were quick professional, and got the job done with no issues would definitely recommend them again”
  • “Caleb was kind on time and assessed our problem thank you!”
    “Endy is extremely polite, very attentive and fixed my slow draining toilet in under an hour.”
  • “Dillon was courteous, got right to work, and did a great job.”
    “Also Caleb came and did a horrible job, seems like he just re-cut the tube and reinserted the tube.”
  • “Five stars with all these reviews I just couldn’t believe it however, This plumber is legit.”
    “I can’t recommend them for larger jobs like tunneling — maybe they’re fine for small fixes like replacing a shower head, but for serious work, look elsewhere.”
  • “Caleb did an excellent job and explained everything.”
    “Diamond plumbing has poor communication and they don't value your time.”
  • “Professional, excellent work and good price thanks to Cris and Gave.”
  • “I’m retired military and my core values are integrity, Service before self, and Excellence in all that I do.”
    “For Austin to say he changed the filters and then charge for work not done is competely deceitful and fraudulent.”

People customers mention

  • Caleb 28 reviews
  • Austin 24 reviews
  • Chris 14 reviews
  • Saucedo 13 reviews
  • Pendley 11 reviews
  • Gavin 7 reviews

praise complaint · found by our text analysis, Google review wording unchanged.

Photos

Customer reviews

4.9 ★★★★★ 804 reviews on Google · rating breakdown

Reviews from Google, shown as published (original wording, unedited).

Jobs customers hired them for — from Google's service tags and the review text
Team members customers mention
Filter by topic — each topic is highlighted in the reviews in the same color
KC CrawfordLocal Guide · 20 reviewsTotal number of Google reviews KC has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

They were quick professional, and got the job done with no issues would definitely recommend them again

  • Price: $1–200
  • Services: Drain cleaning
Jose Luis Gonzalez Hernandez12 reviewsTotal number of Google reviews Jose has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Services and timeliness were great

  • Price assessment: Not sure
  • Services: Shower repair
RA RecioLocal Guide · 62 reviewsTotal number of Google reviews RA has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Austin and pal were quick and professional. One went to address a warranty item and another took care of our washing machine connection and there was no charge for either since there wasn't anything to repair on the washing machine. So I really love the reassurance that we can get a new washer installed without issue. Diamond is always who I call first!

  • Price assessment: Great price
  • Services: Faucet repair, Service not listed
Patti PedigoLocal Guide · 53 reviewsTotal number of Google reviews Patti has written across all businesses on Google Maps, not just this one.
Review from Google · view 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.

  • Price assessment: Reasonable price
  • Price: $800–1,000
  • Services: Service not listed
argenis perez6 reviewsTotal number of Google reviews argenis has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Profesionales , excelente trabajo y buen precio gracia a Cris y Gave.

THOMAS McQuaig6 reviewsTotal number of Google reviews THOMAS has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Professional, friendly, and focused on the job!

Andrea Avery9 reviewsTotal number of Google reviews Andrea has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Great. Quick clean and thorough.

Rachel Meers11 reviewsTotal number of Google reviews Rachel has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Caleb was kind on time and assessed our problem thank you!

  • Price assessment: Not sure
  • Services: Plumbing leak detection
Megan Swarts1 reviewTotal number of Google reviews Megan has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Austin was punctual, friendly, and resolved the issue quickly.

  • Price assessment: Not sure
  • Services: Drain cleaning
Kris KLocal Guide · 17 reviewsTotal number of Google reviews Kris has written across all businesses on Google Maps, not just this one.
Review from Google · view 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.

  • Price assessment: Reasonable price
  • Price: $400–600
  • Services: Faucet installation, Service not listed
Response from the owner · a month ago

We appreciate your kind words! It’s great to know our team provided professional service. Thank you for choosing us—we’re always here if you need anything! Nicole-Service Department Manager

Diamond Plumbing Inc on Google Maps →

Business details