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JB Plumbing

Glendora, CA
4.8(438 reviews)
RESPONSE

Fast Response

Reviewers confirm quick response

EMERGENCY

Claims 24/7

Self-reported — not confirmed by reviews

PRICING

Premium / Upsells

Membership programs detected in reviews

RED FLAGS

1 concern

upselling concerns

Trust Score: 0/100 · Based on 438 reviews

Top pickTop pick
4.8Google

Our Verdict

Strong Hire

#8 of 14 in Glendora, CA

Best for
  • Complex installs and remodels
  • Whole-house repiping
Avoid if
  • You can find better-priced options nearby

Hire if: You need high-quality work that holds up over time

Hire if: You need a plumber who actually shows up when scheduled

Caution if: You need rock-bottom prices with zero flexibility on the quote

Caution if: You need guaranteed sub-hour response for true emergencies

How they score across what matters

Based on 5 reviews analyzed. Click a row for the quote that best illustrates the score.

What they do well (and don’t)

Green means reviews confirm they’re good at it. Red means reviewers flag issues. Gray means no reviews talk about it yet.

What 438 Reviews Tell Us

Emergency Response

Full home repipe job praised in detail: crew covered belongings, cleaned up nightly, pulled permits quickly, and finished on schedule.

What To Watch Out For

Not enough data to identify weaknesses

1 review mentions membership programs or upselling

Upselling concerns

Quality & Professionalism

Full home repipe job praised in detail: crew covered belongings, cleaned up nightly, pulled permits quickly, and finished on schedule.

Drain snaking completed in under an hour with techs arriving hours early and cleaning up after themselves.

Fast Responder

Customer reviews

Reviews from Google, Yelp & more

S
SuperDarkilla

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 !!!

M
M

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 the this organization 2. The professionalism of the job completed 3. The knowledge and honesty to address all of our questions 4. The promptness of the services 5. The quick responses after the job was completed when we had additional questions I recommend JB Plumbing for any plumbing issue big or small. They have installed a water heater, installed a toilet when the original installation was not done well and now this major problem we just had with a bad water leak. Thank You everyone at J B Plumbing

D
David Contreras

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. It’s hard to find good tradesman but JB is now our go-to plumbing service.

N
Nicole M

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! First time customer referred by a neighbor, and I was totally impressed. They were very professional and covered everything, cleaned up every night before departure, took great care with our belongings, kept open discussion regarding options, handled communication for permits and got them quickly, and tidied up before departure. They got done ahead of schedule as well. We’re super satisfied and would highly recommend. We’ll see you guys back for our toilets and tankless water heater next week!

T
Todd Landers

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. They were courteous, did a good job of explaining what they were doing, and cleaned up behind them. I would definitely recommend.

Business details

Phone
(909) 592-8487
Address
515 W Allen Ave #13, San Dimas, CA 91773, USA
Hours
Open 24 hours

Service area

Based in Glendora. Serves 23 nearby cities within 20 miles:

Last updated June 25, 2026 · Data from Google Reviews
0

JB Plumbing

4.8$$
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