Costello's Plumbing

Licensed

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Why this pro?

This pro has been in business for 9 years and handles pipe installs and repairs, along with drain repairs. Customers say they’re responsive, efficient and deliver high-quality workmanship.

Summarized from the pro's profile. Review their profile for the latest.

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.

2025

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2017

Credentials

License verified

C36 – Plumbing Contractor

License state: CA

Background checked

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

Services offered

Project type

Supply new gas lines to home (from street)

Supply new gas lines to appliances (within home)

Supply new gas lines to appliances (outdoors)

Replace old gas lines

Pipe material

Copper

Iron

Steel

PVC or CPVC

Appliances to hook-up

Stove or oven

Outdoor BBQ or grill

Water heater or boiler

Furnace

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%

Read reviews that mention:

Mattea S.

2 weeks ago

•

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

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

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

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

Tracy P.

Dec 30, 2017

•

Hired on Thumbtack

Gary was extremely knowledgeable, fixing the issue for which I hired him within about 5 minutes. He charges by the hour and spent the remaining time fixing and assessing other issues we had identified and I was very happy with his ability to address any question I had. We will most certainly hire him again when needed.

Toilet 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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