Isaac & Sons Plumbing San Dimas
Plumber · West Covina, CA · Open 24 hours per Google listing
Our verdict
5.0★ across 130 reviews; all 5 analyzed are 5-star with professional (4) and workmanship (2) — owner Isaac personally diagnosed and resolved a complex bypass installation challenge on second visit.
Scores are our editorial reading of published customer reviews — not a verification, license check, or guarantee.
Our opinion, based on the 5 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 5 reviews analyzed — treat this assessment as a first impression, not a track record.
What reviewers praise
Next-day response (under 24 hours) confirmed in 1 review; owner Isaac arrived exactly on time and diagnosed problem within minutes of entering home.
1 cited review
“We contacted Isaac & Sons with an urgent plumbing issue (leak under kitchen sink that would not stop no matter what I tried) and received next-day service—less than 24 hours after calling Isaac arrived exactly on time.”
Workmanship theme in 2 of 5 analyzed reviews; Isaac completed a challenging bypass installation and replaced stubborn kitchen pipes on separate visits for the same customer.
2 cited reviews
“Isaac has helped me on two occasions and both experiences were excellent. The first time he located a costly leak and completed a challenging bypass installation to solve the issue. The second time he cleared a stubborn kitchen sink clog and replaced several worn pipes under the sink. Fair pricing and high quality workmanship.”
“Joseph was professional and did a great job at fixing my plumbing problems. He clearly explained what he was doing and answered all of my questions.”
What reviewers report — the concerns
We looked for patterns of complaints in the 5reviews we analyzed and didn't find any. That's rare — but it's a reading of published reviews, not a guarantee.
The evidence — in reviewers' own words
Positive
“Bathroom flooded this morning. My mom (Tricia) called Isaac & Sons Plumbing San Dimas. The gentleman who helped was quick. It didn’t take long at all. Price was great and he was very nice.”
“Fast, Professional, Reliable, Fair, Personable We contacted Isaac & Sons with an urgent plumbing issue (leak under kitchen sink that would not stop no matter what I tried) and received next-day service—less than 24 hours after calling Isaac arrived exactly on time. Isaac himself is highly professional and personable. He explains everything clearly starting from 1st phone call. Within minutes of him entering my home …”
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 5 of 130 reviews so far. Treat this as a first read.
Newest review in our sample: Mar 2026.
Should you hire Isaac & Sons Plumbing San Dimas?
Best for
- Emergency and same-day calls
- Complex installs and remodels
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 rock-bottom prices with zero flexibility on the quote
- You need guaranteed sub-hour response for true emergencies
Advice derived from the review analysis above — how we decide.
Own Isaac & Sons Plumbing San Dimas?
You can respond to our analysis, correct business facts, or dispute the accuracy of a quoted review. Responses that check out get published on this page, and factual errors get corrected — see our corrections policy. We don't remove accurate quotes, but we'll re-run your assessment as your reviews change.
Find plumbers near you
Isaac & Sons Plumbing San Dimasisn't in one of our ranked city guides yet — the nearest covered markets are below.
Nearby: West Covina · Upland · Chino Hills · Valyermo