John C.
12/9/2025
To me, Costello's Plumbing in San Leandro are the "Greek Gods of Plumbing." Miguel, Little Alex and Gary Costello all definitely have PHD's in "toilet surgery." Not only did they fix my problem,...
Costellos plumbing
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3826 Anza Way
San Leandro, CA 94578
Costellos Plumbing is a licensed, bonded, and insured plumbing company in San Leandro, CA, offering expert residential and commercial plumbing services. With years of experience, their seasoned plumbers use top-notch equipment and techniques to deliver quality installations and repairs, ensuring reliability, integrity, and customer satisfaction.
From simple faucet installations to comprehensive sewer line inspections, Costellos Plumbing provides a wide range of plumbing services, including sinks, drains, faucets, toilets, garbage disposals, and water heaters. Their commitment to excellence and dedication to exceeding expectations make them a premier choice for all plumbing needs.
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Reviews
5.071 reviews
Cat N.
5/1/2025
I had the unfortunate experience of having a leaking bath tub faucet. I immediately went to yelp to find the best company and am so happy to have landed at Costellos Plumbing. I got a quick...
Dorothy D.
5/2/2025
Not too long ago I had a problem with my garbage disposal or something under the sink. I called Costello plumbing on a Monday morning. They were at my house Monday midday and the problem was...
Jay S.
10/23/2025
So glad I chose Costellos. The plumber, Eddy, explained both the situation and my house situation plainly and clearly. When we're debating between the smaller and larger job, Gary Costello came...
Lesleigh P.
12/10/2025
Whenever you are in need of a plumber, it makes a person extremely apprehensive, but now that I've found Costellos Plumbing, I will never use another company. Miguel is the most HONEST,...
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