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Costello's Plumbing

Top Pro

$65/service call

(waived if hired)


Scheduling
Sewer and water systems

Responds in about 11 min


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About
My name is Gary Costello, my technicians and I are experienced in all your plumbing need's, including all water service repairs and or replacment, gas service, water heaters and all your homes drain cleaning. I'm not always on this site but I am always willing to take on new clients. I prefer to look at projects before quoting to assure an accurate estimate. We try to give the best price for us and you as a consumer to provide both quality work and fair price along with great customer services. Ive worked in plumbing majority of my life spand along with other trades. My team and I are all trained in multiple fields of plumbing and construction fields. We are fully detailed with scope of work that needs to be performed. Any questioning you may inquire we always hope to answer completely and have you understand the situation. There has not been a project we have not been able to handle, and if we feel out of our comfort zone my team and I will always inform you before we start a project. We at Costello's Plumbing strive to make make a great impression and keep your mind at ease during your plumbing troubles or needs. Feel free to book next avaiable appt at your esrliest convience. Ph: 5104150725
Overview

Current Top Pro

Hired 312 times

Serves San Leandro, CA

Background checked

License verified

4 employees

9 years in business

Business hours

SunClosedMon7:00 am - 9:00 pm

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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2024

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2023

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2022

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2021

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2020

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2018

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2017

Services offered
Sewer and water systems

Municipal water

Well water

Septic tank

Property type

House

Condo/Apartment

Townhouse

Business

Projects and media

112 photos

Projects and media

112 photos

Reviews

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

Great 4.8

216 reviews

5

91%

4

4%

3

1%

2

1%

1

3%

Read reviews that mention:


pro avatar
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
pro avatar
Jo A.

May 2, 2025

Hired on Thumbtack

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
pro avatar
Lisa F.

Aug 11, 2021

Hired on Thumbtack

We had a great experience with Costello’s plumbing. They were very responsive and took the time to troubleshoot the leak issue we had thoughtfully. They explained their approach in detail. They predicted the potential issue was with a poor installation of our toilet during a recent remodel. Sure enough, once they got into the repair it turns out they were exactly right. They worked swiftly on the repair, cleaned the bathroom really well and gave me a very fair price for what they dealt with. I would hire them again without hesitation and recommend them to others.

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

Plumbing Drain Repair
pro avatar
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
pro avatar
Barbara V.

Aug 28, 2017

Hired on Thumbtack

Very personable , got right to work. Inspected my other toilets also. Ended up having him do more repairs then hired for. Very accommodating. Highly recommend.
Toilet Repair
Credentials
License

License type: C36 – Plumbing Contractor

License state: CA

License verified on 3/10/2025

Background Check

Gary Costello, Jr

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