What services does the company offer?

The company provides a wide range of services, including plumbing, heating, cooling, and kitchen & bath remodeling. They offer routine and emergency services, as well as a maintenance program for their HVAC customers.

What sets the company apart from other service providers?

John J. Cahill Inc. is a union plumbing and pipefitting company that has been serving the North Shore community for generations. They pride themselves on being more than just a service provider, but a part of the community they serve.

Does the company provide free estimates?

Yes, the company offers free estimates for their services.

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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.

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John J. Cahill Plumbing, Heating & Air Conditioning

$5.0M revenue • 25 employees • 1515 Church St, Evanston, IL, 60201, United States

Last Updated Aug 18, 2026

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Company Overview

Company Name

John J. Cahill Plumbing, Heating & Air Conditioning

Address

1515 Church St, Evanston, IL, 60201, United States

Website

cahillinc.com

Phone

(847) 864-5225

Approx. Annual Revenue

$5.0M

Employees

Established

1998

Google Reviews

4.1 (78 reviews)

About John J. Cahill Plumbing, Heating & Air Conditioning

John J. Cahill Inc. is a family-owned plumbing, heating, and cooling company based in Evanston, Illinois, that has served the North Shore communities for over 130 years. Known for its expertise, impeccable workmanship, and unwavering commitment to trust and integrity, the company provides a wide range of services, including plumbing, HVAC, and remodeling, to residential and commercial customers.

Business Profile

Read from the John J. Cahill Plumbing, Heating & Air Conditioning website on Oct 12, 2026. Hover an item to see the exact wording it came from.

How John J. Cahill Plumbing, Heating & Air Conditioning works

Licenses, certifications & awards

EPA CertifiedCompliance certified Industry certified

Ownership (as declared by the business)

Family-owned

About the website

Website quality (AI-assessed): 8/10 · Current and complete with services and contact; Includes showroom and brand information

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Frequently Asked Questions about John J. Cahill Plumbing, Heating & Air Conditioning

Technologies Used

Social Profiles

Key Decision Makers

John Cahill Owner