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

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2025

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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

Project type

Garbage disposal replacement

Garbage disposal installation

Disposal type

Continuous feed (common)

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

Lily L.

Dec 30, 2024

•

Hired on Thumbtack

Costello’s Plumbing was great. They provided quick and professional service. They helped identify our issues with our main sewage drain, provided a fix and long term advice. Thanks!

Details: Yes, repair is urgent • Part of a larger issue with the plumbing system • Clogging • Gurgling sounds • Unpleasant odor • House

Plumbing Drain 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

Nichole L.

Mar 9, 2021

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Hired on Thumbtack

Our garbage disposal was not working correctly. I called Costello's Plumbing and he suggested I try to troubleshoot the issue myself which he walked me through. He offered to come out if my attempt didn't work but it did. He was very professional and very knowledgeable. I really appreciated their approach.

Details: Yes, there is an existing disposal (which needs to be replaced). • Continuous feed (most common) • Yes, the garbage disposal will be provided

Garbage Disposal Installation

Ken C.

Dec 11, 2021

•

Hired on Thumbtack

Fast and efficient. Appreciate the help to fix my garbage disposal! Miguel was super helpful and knowledgeable. would reach out again if I run into any plumbing problems.

Details: Yes, there is an existing disposal (which needs to be replaced). • Continuous feed (most common) • Yes, the garbage disposal will be provided

Garbage Disposal Installation

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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