Costello's Plumbing

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Licensed

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Sewer and water systems

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About

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Overview

Current Top Pro

Hired 320 times

Background checked

License verified

4 employees

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.

2025

2024

2023

2022

2021

2020

2018

2017

Credentials

License verified

C36 – Plumbing Contractor

License state: CA

Background checked

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

Services offered

Sewer and water systems

Municipal water

Well water

Septic tank

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

218 reviews

5

91%

4

4%

3

1%

2

1%

1

3%

Read reviews that mention:

Jay T.

Jul 11, 2025

•

Hired on Thumbtack

Excellent job by Miguel. Reasonable price and very professional work. I can always call them again because of nice job and very good work by Miguel. 5 out 5. Thank you.

Details: No new piping needed • Other plumbing installation or replacement • House

Plumbing Pipe Installation or Replacement

Lisa F.

Aug 11, 2021

•

Hired on Thumbtack

Details: No, repair is not urgent • Other issue • Leaking (problem area known) • Unpleasant odor • House

Plumbing Drain Repair

Greg R.

Jul 7, 2020

•

Hired on Thumbtack

Costello plumbing was awesome! One employee had a little trouble diagnosing my mothers leaking toilet initially. After the initial repair failed, they came back 3 deep to diagnose and fix the problem. I appreciated their prompt response and professionalism. Thanks Gary and Costello plumbing!

Details: A few hours to a day • Leaking or burst pipes or appliances • Bathroom • Toilet • Condo/Apartment

Emergency Plumbing

Barbara V.

Aug 28, 2017

•

Hired on Thumbtack

Toilet Repair

Philip G.

Oct 27, 2025

•

Hired on Thumbtack

The team was very responsive and worked around my schedule. I got clear, useful advice and would hire them again for future work!

Details: Routine maintenance • No problem, just need maintenance • Gas tank • Kitchen • House

Water Heater Repair or Maintenance

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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