Costello's Plumbing

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About

With 10 years in business and a small, dedicated team of 4 professionals, we handle your plumbing needs with care, speed, and precision. From water heater installation and repair to garbage disposals, toilets, faucets, and full pipe replacements, we’re equipped to tackle both everyday jobs and emergency plumbing issues. As a licensed plumbing contractor, we take the time to diagnose the problem correctly, explain your options clearly, and complete the work safely and up to code. Whether it’s a simple repair, a new installation, or a full inspection, you can count on reliable service and honest recommendations. Tell us what’s going on with your plumbing, and we’ll help you find the best solution.

Overview

Hired 321 times

Background checked

License verified

4 employees

10 years in business

Business hours

This pro hasn't listed their business hours.

Payment methods

This pro accepts payments via Cash, Check, Credit card, PayPal, Square cash app, Venmo, and Zelle.

Top Pro status

Top Pros are among the highest-rated, most popular professionals on Thumbtack.

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Credentials

License verified

C36 – Plumbing Contractor

License state: CA

Background checked

Passed by Gary Costello, Jr on Apr 28, 2021.

Services offered

Shower or bathtub problem

Leaking faucet or shower head

Shower door repairs or replacements

Other

Shower or bathtub type

Showers

Bathtubs

Combination shower and bathtubs

Property type

House

Condo/Apartment

Townhouse

Business

Projects and media

Reviews

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

Great 4.8

219 reviews

5

91%

4

4%

3

1%

2

1%

1

3%

Your trust means everything to us. Learn about our review guidelines.

Read reviews that mention:

Mattea S.

May 27, 2026

•

Hired on Thumbtack

Edgar was quick to respond and easy to schedule. He came the next day and fixed my wobbly toilet. He gave options for a simple fix that should last a while vs a more expensive and complex fix.

Will call him again :)

Details: 1 toilet • Municipal water (most common) • House

Toilet Repair

Jo A.

May 2, 2025

•

Hired on Thumbtack

Great job done well and completed when they said it would be. I appreciated their willingness to answer my questions about why they used certain materials vs others. They paid attention to safety and cleaned up when job was finished. I'll use them again for future plumbing needs.

Details: No, I do not need to replace a sink • As recommended by professional • 0 sinks • 3 faucets • House

Sink or Faucet Installation or Replacement

Alisa D.

Dec 31, 2024

•

Hired on Thumbtack

The plumber was easy to schedule and did a great job clearing the clogged drain. He did a good job of keeping the space clean, even when working through the muck.

Details: No, repair is not urgent • Only one drain has issues • Clogging • Condo/Apartment

Plumbing Drain Repair

Jinto T.

Jul 12, 2020

•

Hired on Thumbtack

Details: A few pipes • Other plumbing installation or replacement • Municipal water (most common) • Condo/Apartment

Plumbing Pipe Installation or Replacement

Jeremy F.

May 23, 2022

•

Hired on Thumbtack

Gary did a fantastic job—he communicated very actively, showed up during his window (the second time; the first time, he had to miss his window but he communicated about that before the window was up, which is much appreciated). He was able to address the issue I had, as well as some other things he noticed that the previous owner/flipper had done. His attention to detail and understanding of code helped prevent what may have become a catastrophic leak down the road. His services are priced fairly and he's great at explaining everything he does. Highly recommended! Will be hiring him for all future plumbing work.

Details: No, repair is not urgent • No, the building is not currently flooded • Other plumbing system issue • Other appliance • Townhouse

Plumbing Pipe Repair

FAQs

What should the customer know about your pricing (e.g., discounts, fees)?
I normaly will charge by the job and prefer to look at project to assure you are receiving a proper estimate
What is your typical process for working with a new customer?
I give options to your problem at hand and will notify you of problems if any
What education and/or training do you have that relates to your work?
I have my c36 plumbing contractors license many years experience in diagnostics and repairs.

Costello's Plumbing

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