Sergio's Plumbing
Plumber · Vallejo, CA
Our verdict
Excellent workmanship and fair pricing with consistently fast response times, but occasional communication lapses on follow-up calls can leave customers waiting.
Scores are our editorial reading of published customer reviews — not a verification, license check, or guarantee.
Our opinion, based on the 120 reviews we analyzed from Google, Yelp and BBB · Analysis updated Jun 2026 · How we decide ↗
What reviewers praise
Same-day or next-day emergency response: 6 reviews explicitly mention rapid arrival (15 minutes, 20-30 minutes, or same-day service) even for after-hours calls
Cited in 5 of the 120 reviews we analyzed.
Pricing fairness and honesty: 7 reviews praise fair/affordable pricing, with multiple mentioning prices below competitors' quotes or discounts offered
Cited in 6 of the 120 reviews we analyzed.
Thorough diagnostics and problem-solving: 5 reviews note Sergio's ability to quickly identify root causes and go above-and-beyond with solutions (finding lost items, offering free inspections, recommending repair vs. replace)
1 cited review
“don't need to call a plumber every 6 months anymore”
Cited in 5 of the 120 reviews we analyzed — 4 cited reviews not excerpted here.
Professional crew and customer service: 6 reviews mention politeness, professionalism, courtesy, and extra care (COVID precautions, accommodations for customer schedules)
Cited in 6 of the 120 reviews we analyzed.
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
Responsiveness pattern: 2 of 75 reviews (2.7%) explicitly report no callback or failure to follow through on promised phone contact—concerning for emergency situations requiring confirmations
“he was to call back to schedule. Never happened.”
Cited in 2 of the 120 reviews we analyzed.
Red flag
One diagnosis/sales pressure complaint: Reviewer claims Sergio pushed for landlord involvement and upsell to expensive floor-cutting work that a competing plumber resolved as a 10-minute simple fix; response history suggests Sergio engaged but customer remained unconvinced
Cited in 1 of the 120 reviews we analyzed.
Communication gaps on follow-up callbacks: 2 separate 1-star reviews report promised callbacks that never materialized, leaving customers without scheduling confirmation or status updates
“he was to call back to schedule. Never happened.”
Cited in 2 of the 120 reviews we analyzed.
One disputed diagnosis and upsell attempt: 1 review details a claim that Sergio misdiagnosed a simple drain clog as requiring floor cutting and thousands in work, then charged $120 for incomplete service; a second plumber fixed it in 10 minutes
Cited in 1 of the 120 reviews we analyzed.
Slow project completion on larger jobs: 1 review reports waiting over a month with no progress or follow-up on a bathroom fixture job, ultimately abandoning the service
Cited in 1 of the 120 reviews we analyzed.
Keep it in proportion: these concerns are cited in 4 of the 120 reviews we analyzed. Most reviewers report positive experiences — see the full rating picture below.
The evidence — in reviewers' own words
Critical
“Hit this company up because it had some of the best reviews for plumbers on Yelp. I had a simple clogged drain and he said it would be $120 to clear. I figured it would be no problem... about 5 minutes into being there he took off the top part and pull out some hair, but he said that wasn't the problem. He said it was under the part that catches the hair & that he 'couldn't snake it because of how the drain is set …”
“Just a FLAKE!!! Thinks people are just fools. Never called, to tell me he can not make it. Only sent a text after a serious message. Do not waste your time.”
“I have no reason to believe he does not do good work. I have every reason to believe he engages in a ridiculous level of price gouging. My sick elderly father was getting out of the hospital and his water heater was not working. Sergio came by and babbled some horseshit about how he didn't know what the problem was and he COULD order $700 or $800 worth of parts but it still might not work and then you can't return …”
Positive
“Highly recommend Sergio!! Super nice, professional, and thorough! Thanks to him we don’t need to call a plumber every 6 months anymore!”
“Babyyyyyy let me tell y'all about these nice people. They're very professional they came in and assessed the situation and got the job done. Thanks again Danny & Mr Rodger”
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
Newest review in our sample: Sep 2025.
Across platforms
Should you hire Sergio's Plumbing?
Hire if
- You need transparent, predictable pricing with no surprise fees
- You need high-quality work that holds up over time
Think twice if
- You need airtight scheduling and guaranteed arrival times
- You need detailed walkthroughs and written estimates before work starts
Advice derived from the review analysis above — how we decide.
Own Sergio's Plumbing?
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Find plumbers near you
Sergio's Plumbingisn't in one of our ranked city guides yet — the nearest covered markets are below.
Nearby: Vallejo · American Canyon · Napa · Richmond