Diablo Plumbing Inc
Plumber · Pleasanton, CA · Open 24 hours per Google listing
Our verdict
Excellent emergency responder with same-day availability, but pricing structure ($250/hr minimum 2 hours) can shock customers when diagnostic calls run short.
Scores are our editorial reading of published customer reviews — not a verification, license check, or guarantee.
Our opinion, based on the 7 reviews we analyzed from Google, Yelp and BBB · Analysis updated Jun 2026 · How we decide ↗
Lists 24-hour service on its Google profile — and reviewers describe after-hours calls.
Only 7 reviews analyzed — treat this assessment as a first impression, not a track record.
What reviewers praise
4 of 5 reviewers praise technician professionalism and knowledge, with Joe Sensi and Sean noted for going beyond basic fixes
3 cited reviews
“Fixed my issue quickly and professionally with reasonable price.”
“Julie was very professional and sent updates before tech arrived.”
“Able to arrange emergency service the same day.”
Cited in 4 of the 7 reviews we analyzed — 1 cited review not excerpted here.
Demonstrated emergency responsiveness: same-day service for acute leaks and after-hours availability
2 cited reviews
“Able to arrange emergency service the same day.”
“Julie was very professional and sent updates before tech arrived.”
Proactive communication during service calls, including pre-arrival updates and clear explanations of issues
1 cited review
“Julie was very professional and sent updates before tech arrived.”
Cited in 2 of the 7 reviews we analyzed — 1 cited review not excerpted here.
What reviewers report — the concerns
Other directories bury these. We think you should read them before you call. Every concern below comes from the reviews it cites.
Red flag
Credit card required on file before scheduling appointment, which may deter customers uncomfortable with pre-authorization
Cited in 1 of the 7 reviews we analyzed.
Minimum 2-hour billing ($250/hr) creates high costs for diagnostic-only visits; one customer paid $500 for 1-hour sewer probe that identified but did not resolve the problem
Cited in 1 of the 7 reviews we analyzed.
Keep it in proportion: these concerns are cited in 1 of the 7 reviews we analyzed. Most reviewers report positive experiences — see the full rating picture below.
The evidence — in reviewers' own words
Critical
“These guys have terrible communication. They didn’t tell me when they were gonna get there properly. They didn’t tell me they were gonna leave. like they told me they were going to do. One of them was a really really not nice human being. I came outside and there was water that was sewage water everywhere all over my garage damaging my stuff. He didn’t even put a tarp up. I’ve had to mention it 1000 times for them …”
“$250/hr minimum 2 hours. Plumber was here for exactly an hour. Ran a probe to see the sewer situation. There are roots as I suspected. Packed up his stuff and I was $500 poorer and my sewer is still having problems. They get your credit card on file before they will schedule an appointment.”
Positive
“My HOA manager recommended Diablo Plumbing based on their past work at my property. Joe Sensi came out and fixed my issue quickly and professionally. He even gave me tips on how to fix the issue myself if it happens again. Very appreciative of Joe’s knowledgeability and friendliness, and the reasonable price for services. I heartily recommend Diablo Plumbing and will definitely call them for future plumbing concerns!”
“Once again we had Diablo Plumbing out to figure out why our water heater was not working, they were easy to work with on the phone and on time when they said they’d be here. Julie was very professional and sent updates before the tech arrived, Joe the technician went over and beyond with his explaining the issue. Thanks again for making this service call easy…jeff”
Quotes are reproduced verbatim from public reviews on the platforms shown; we select which to feature, and selection reflects our editorial judgment. Report a quote that doesn't match its source ↗
The rating picture
Small sample — we've analyzed only 7 of 63 reviews so far. Treat this as a first read.
Newest review in our sample: May 2026.
Should you hire Diablo Plumbing Inc?
Best for
- Emergency and same-day calls
- Complex installs and remodels
- Water heater install/repair
- Emergency and burst pipe repair
Hire if
- You need a plumber who actually shows up when scheduled
- You need high-quality work that holds up over time
Think twice if
- You need predictable, consistent service across every visit
- You need rock-bottom prices with zero flexibility on the quote
- You need guaranteed sub-hour response for true emergencies
Look elsewhere if
- You're highly price-sensitive
Advice derived from the review analysis above — how we decide.
Own Diablo Plumbing Inc?
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