Trusted Plumbing Repair and Installation in Pomona, CA
J. Diaz plumbing helps Pomona homeowners with fast diagnostics, careful repairs, drain cleaning, water heater service, leak detection, and honest recommendations that keep your plumbing running right.
- Fast Response and Honest Pricing
- Residential Plumbing Specialists
- Careful Work With Quality Parts
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“meeting this young man one morning after finding a flyer left on my porch. He completed same-day service and did such an excellent job that I hired him for additional work, which also turned out great. I’ve since recommended him to several of my coworkers.”– Jus M.
Practical Plumbing Service With Careful Detail
J. Diaz plumbing provides Pomona-area homeowners with responsive plumbing repair, drain and sewer service, water heater installation, leak detection, and upgrades handled with care from start to finish.
From the first phone call to the final walkthrough, you'll know exactly what's happening and what it costs. No pressure, no surprises — just careful work from a local team that treats your home like their own and stands behind every job.
Plumbing Services Built for Everyday Reliability
Drain Cleaning
Fast drain cleaning for Pomona homeowners dealing with slow, clogged, or backed-up drains.
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Water Heater Service
Repair and installation for tank and tankless water heaters so hot water is never a question.
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Leak Detection & Repair
We find hidden leaks before they become water damage, and fix them right the first time.
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Toilet & Faucet Repair
Running toilets, dripping faucets, and worn fixtures repaired or replaced cleanly.
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Sewer Line Service
Inspection, cleaning, and repair for sewer lines across Pomona and nearby communities.
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Repiping
Whole-home and partial repiping with durable materials and tidy, organized workmanship.
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Garbage Disposal
Disposal repair and replacement for kitchens that need to get back to normal fast.
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Emergency Plumbing
When a pipe bursts or a drain backs up, we respond quickly to limit the damage.
Learn More →How We Work
Our approach is organized around prompt communication, careful repairs, and practical service that keeps the process easy to follow.
Contact us
Get your free estimate
Repair or order parts
Complete the job
Pay only when it's done
We diagnose the issue quickly.
From a hidden leak to a drain that keeps backing up, we find the source of the problem before suggesting a fix.
We keep the work tidy and efficient.
Repairs, replacements, and installations are handled with care so your home stays clean and the project stays organized.
We explain the next step clearly.
Whether the job needs a simple repair or a full replacement, we make it easy to understand the best path forward.
Customer Reviews
“meeting this young man one morning after finding a flyer left on my porch. He completed same-day service and did such an excellent job that I hired him for additional work, which also turned out great. I’ve since recommended him to several of my coworkers.”
“I couldn't be happier with the service I received! Gio and the crew showed up right on time, explained every step of the process, and made sure I knew exactly what was going on. They installed my new repipe quickly, did an amazing job, and made the whole experience so much easier than I expected.…”
“Jovani was really great to work with. He was quick to respond to our phone call and messages. At our appointment, he was on-time and ready to work. Jovani was thorough with his assessment and gave us his expert opinion on our plumbing issue. He worked quickly and efficiently. It’s hard finding an…”
“Jiovanni did an amazing job installing our water pressure regulator. He went above and beyond to explain the process clearly and even performed an additional inspection of the pipes to make sure everything looked good. Affordable, professional, and great customer service. Highly recommend.”
“Quick and easy! I gave Jovani a call and told him our sink was clogged. He came 20 minutes later, diagnosed, and fixed the issue. Super nice guy, explained everything in detail, and cost was cheap! Highly recommend going him a call for your plumbing needs!”
Frequently Asked Questions
What kinds of plumbing problems do you handle?
We help with clogged drains, leaking pipes, water heater issues, running toilets, low water pressure, sewer line problems, and general plumbing repairs.
Do you handle emergency calls?
Yes. Burst pipes, major leaks, and sewer backups can't wait, so we prioritize urgent calls and respond as quickly as possible.
Do you install water heaters?
Yes. We repair and install both tank and tankless water heaters, and we'll give you a straight answer on whether repair or replacement makes more sense.
Can you find a leak I can't locate?
Yes. We use careful diagnostics to track down hidden leaks behind walls, under slabs, and in yards before they cause bigger damage.
What areas do you serve?
We serve Pomona and the surrounding communities. If you're nearby, reach out and we'll let you know right away.
How do I get started?
Call us or send a short description of the issue, and we'll help you determine the best next step for your plumbing.
Proudly Serving These Areas
J. Diaz plumbing serves Pomona and the surrounding area with plumbing repair, drain service, water heater work, and emergency response for homeowners who want dependable service.
Book Plumbing Service Today
Tell us what's going on, whether it's a slow drain, a leak, no hot water, or a project you've been putting off. We'll help you choose the right repair at a fair price.