JB Plumbing
Plumber · Glendora, CA · Open 24 hours per Google listing
Our verdict
4.8★ across 438 Google reviews; all 5 sampled reviews are 5-star with 100% positive sentiment and perfect consistency score — strong repipe, water heater, and drain work cited with named technicians.
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
Full home repipe job praised in detail: crew covered belongings, cleaned up nightly, pulled permits quickly, and finished on schedule.
1 cited review
“Looking for the nostalgic and rare experience of a knowledgeable, reliable, trustworthy and reasonably priced plumber… one who takes care like a family member would? Job: full home repipe Jonny M. runs a tight ship and he and his crew really know what they're doing!”
Multi-service reliability confirmed across repeat engagements; reviewer used JB for smaller jobs and major plumbing situations with consistent results — techs Cameron, Will, Johnny, Sean, Nick all cited by name.
1 cited review
“JB has done a few jobs at our house and they've been great every time. Just had Johnny and Cameron out to clear a clog and they were great. Personable, honest, and communicative. Sean and Nick also upgraded our water main service and helped fix a leak a few months back and they were just as great.”
Cited in 2 of the 5 reviews we analyzed — 1 cited review not excerpted here.
Drain snaking completed in under an hour with techs arriving hours early and cleaning up after themselves.
1 cited review
“I left a message on a Monday afternoon with JB Plumbing to unclog double sinks in our upstairs bathroom. Within a couple of hours, they replied and arranged to come out by noon the following day. Cameron and Will actually came out a few hours early, snaked the drain and had it flowing in about an hour.”
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
“Cory and Phillip were the best plumbers I have seen in 57 years. They were on time, straight forward and got the job done. No hassle, no fooling around got in and got the job done. They are in my permanent contacts and will DEFINITELY BE GETTING A CALL !!!”
“We have used JB Plumbing for smaller jobs and have been very very happy with the work, they were the only company we considered calling when we found ourselves in major plumbing situation. We, unfortunately have had other plumbing issues and used different well known plumbing companies for which the work was good. What made a JB Plumbing stand out was: 1. The professionalism of everyone we have dealt with in …”
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 438 reviews so far. Treat this as a first read.
Newest review in our sample: Mar 2026.
Should you hire JB Plumbing?
Best for
- Complex installs and remodels
- Whole-house repiping
Hire if
- You need high-quality work that holds up over time
- You need a plumber who actually shows up when scheduled
Think twice if
- You need rock-bottom prices with zero flexibility on the quote
- You need guaranteed sub-hour response for true emergencies
Look elsewhere if
- You can find better-priced options nearby
Advice derived from the review analysis above — how we decide.
Own JB Plumbing?
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
JB Plumbingisn't in one of our ranked city guides yet — the nearest covered markets are below.
Nearby: West Covina · Upland · Chino Hills · Valyermo