What makes Costello's Plumbing stand out from the competition?

Costello's Plumbing prides itself on providing honest, reliable, and exceptional service for all residential and commercial plumbing needs. The company offers unparalleled knowledge, experience, and expertise, with a focus on completing each job correctly the first time to exceed customer expectations.

What is the company's mission?

The mission of Costello's Plumbing is to provide honest, reliable, residential and commercial plumbing services that stand head and shoulders above the rest. The company continually strives to exceed expectations by ensuring that each plumbing repair is completed correctly.

Voyager DB

Deep data on millions of local businesses, with verified decision-makers to reveal.

Contact Research

Hand-built prospect lists from human researchers, delivered in 24 hours.

People Search

Find owners and decision-makers by job title, seniority and department.

Chrome Extension

Coldlytics in your browser - prospect any business as you browse the web.

Integrations

Instantly, Smartlead, lemlist, Clay, HighLevel, plus Claude and ChatGPT over MCP.

Voyager DBDeep data on millions of local businesses, with verified decision-makers to reveal.Contact ResearchHand-built prospect lists from human researchers, delivered in 24 hours.People SearchFind owners and decision-makers by job title, seniority and department.Chrome ExtensionColdlytics in your browser - prospect any business as you browse the web.IntegrationsInstantly, Smartlead, lemlist, Clay, HighLevel, plus Claude and ChatGPT over MCP.

PricingPricing AgenciesAgencies BlogBlog

LoginLogin

Costello's Plumbing

$1.6M revenue • 8 employees • 3826 Anza Way, San Leandro, CA, 94578, United States

Last Updated Jun 22, 2026

Own this business? Claim & update this listing →

Company Overview

Company Name

Costello's Plumbing

Address

3826 Anza Way, San Leandro, CA, 94578, United States

Website

costellosplumbing.com

Phone

(510) 415-0725

Approx. Annual Revenue

$1.6M

Employees

Established

2017

Google Reviews

4.9 (63 reviews)

Locations

About Costello's Plumbing

Costello's Plumbing, a plumbing company based in San Leandro, CA, offers 24/7 emergency plumbing services to address a wide range of plumbing issues. With over 20 years of experience, the company's team of skilled technicians provides reliable, honest, and exceptional service for both residential and commercial clients, aiming to exceed expectations by ensuring each repair is completed correctly.

Business Profile

Read from the Costello's Plumbing website on Oct 12, 2026. Hover an item to see the exact wording it came from.

Licenses, certifications & awards

Licensed and InsuredLicensed Insured Bonded

About the website

Website quality (AI-assessed): 6/10 · Thin content, no service details; No contact form or booking