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Utmost Plumbing

Top Pro

Licensed
Licensed
$35/service call

(waived if hired)

Scheduling
Sewer and water systems

Responds in about 34 min

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If you hire this pro, you’re covered by a money-back guarantee. Learn more

About
Utmost Plumbing is a small, family-owned business dedicated to providing top-quality plumbing at fair, competitive prices. With 2 years in business and a licensed plumbing contractor on every job, we focus on reliable residential and commercial service and repair. From emergency plumbing, drain and toilet repairs, to water heaters, faucets, dishwashers, and gas line installation, we take pride in doing the job right the first time. Our goal is simple: deliver exceptional customer service and trustworthy workmanship you can depend on. If you’re looking for a responsive, honest plumbing team that treats your home or business with care, contact Utmost Plumbing today to schedule your service or inspection.
Overview

Current Top Pro

Hired 11 times

Serves San Diego, CA

Background checked

License verified

3 employees

2 years in business

Business hours

SunClosedMon7:00 am - 7:00 pm

Payment methods

This pro accepts payments via Apple Pay, Cash, Check, Credit card, Google Pay, PayPal, Samsung Pay, Square cash app, Stripe, and Zelle.

Credentials

License verified

C36 – Plumbing Contractor

License state: CA

Background checked

Passed by Carlos Fonseca on Jan 22, 2025.

Services offered
Sewer and water systems

Municipal water

Well water

Septic tank

Property type

House

Condo/Apartment

Townhouse

Business

Projects and media
Projects and media
Reviews

Customers rated this pro highly for professionalism, responsiveness, and work quality.

Exceptional 5.0

8 reviews

5

100%

4

0%

3

0%

2

0%

1

0%

Read reviews that mention:

pro avatar
Cathy L.

Mar 29, 2026

•

Hired on Thumbtack

If you ever find yourself staring down a leaking faucet that sounds like it’s trying to communicate in Morse code, do yourself a favor and call Utmost Plumbing. Charlie showed up like he’d been training his whole life for this exact drip‑drip‑drip showdown. From the moment he walked in, he was knowledgeable, explaining what was wrong with my faucet in a way that made me feel like I could almost pass for a junior plumber. He was friendly and didn’t judge me when I admitted I had tried “fixing” it by turning things off. But the best part? Charlie was absolutely determined to get the job done. My faucet put up a fight — at one point I’m pretty sure it hissed — but Charlie handled it with the calm confidence of someone who has seen far worse plumbing crimes. Within no time, the leak was gone, the faucet was behaving, and my bathroom no longer performed its Morse code ritual. Five stars for Charlie and Utmost Plumbing. If something in your house is dripping, gurgling, clanking, or otherwise acting possessed, call them. They’ll fix it with friendly service and they’ll leave you wondering why you ever tried to DIY anything involving water.

Details: Faucet malfunctioning • Bathroom • Shower or bathtub • Sink or faucet • House

Emergency Plumbing
pro avatar
True R.

Mar 2, 2026

•

Hired on Thumbtack

Carlos saved our day and in such a tight timeline. I needed our kitchen sink unclogged and Carlos made it happen on a Sunday within two hours. He was extremely professional, honest and fair. I’ll be reaching to Carlos and Utmost Plumbing for any and all of my future plumbing needs.

Details: Yes, repair is urgent • Only one drain has issues • Clogging • Slow draining • Townhouse

Plumbing Drain Repair
pro avatar
Tracee T.

Jan 20, 2026

•

Hired on Thumbtack

Carlos was great! Gave me a rundown of what might be the cause, cost and timeframe. He communicated when he was on his way and arrived on time.

Details: Failure in heating system • Garage • Water heater • House

Emergency Plumbing
pro avatar
Mudi W.

Jan 15, 2026

•

Hired on Thumbtack

Details: A few pipes • Other plumbing installation or replacement • Condo/Apartment

Plumbing Pipe Installation or Replacement
pro avatar
Elias E.

Jan 8, 2026

•

Hired on Thumbtack

I want to offer my full endorsement for Carlos. He was responsive, ethical, and genuinely wanted to help me. I had a major clogging problem in the main house, and Carlos was able to clear it completely. He took the time to show me, step by step, everything he was doing, which helped me feel comfortable and informed throughout the process. Carlos was extremely professional, very clean, and conscientious about both his time and the quality of his work. He truly cares about his customers and wants them to feel valued. This young man does excellent work—he knows how to unclog pipes efficiently and offers helpful advice and recommendations to prevent future issues. He backs up his work. I highly recommend Carlos for any plumbing service needs. Thank you, Carlos, for your outstanding service!

Details: Yes, repair is urgent • Only one drain has issues • Clogging • Slow draining • House

Plumbing Drain Repair
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