Family Owned and Trusted Since 1890

Throughout the years, John J. Cahill has earned a reputation among residential and commercial customers for our expertise, impeccable workmanship, unfailing service and, above all else, trust and integrity—the cornerstone of the Cahill business.

Trusted Plumbing, Heating and Cooling and Remodeling Company Serving Chicagoland

As a family-owned company since 1890, John J Cahill Inc. has earned a reputation among residential and commercial customers for our expertise, impeccable workmanship and above all else, trust and integrity — the cornerstone of the Cahill business.

Plumbing Contractor

For more than a century, we have provided the residents of Chicagoland with top-quality service and expertise. From plumbing services and AC issues to your latest home remodel, you can count on us to meet and exceed your expectations.

In addition to licensed plumbers, our team includes NATE-certified technicians and professionals with decades of experience. Our A+ rating with the Better Business Bureau and our customer testimonials are proof of our excellent service. Our customers appreciate our free estimates, as well as our ability to with work a variety of top brands.

Your Plumber and Your HVAC Contractor

Both your plumbing fixtures and your heating and air conditioning units are essential, expensive investments. At John J. Cahill Inc., we are proud to provide you with exceptional service for both of these systems. We even offer 24-hour emergency services for those times when your repairs simply can’t wait.

Why wait until a problem arises to call a technician when you can have one come out and perform regular checks ups and help prevent inconvenient, severe, and costly issues in the future? Our AC repair company can arrange service agreements to help you stay on top of your maintenance schedule.

Home Remodeling for Kitchens and Bathrooms

Not only can we repair plumbing system issues in your kitchen and bathrooms, but we can also renovate the entire area. After all of these years working in a countless number of homes, we know exactly how these rooms function and how they can best serve you. Services include everything from bathroom design to kitchen remodeling.

If you are in the Chicagoland area, contact John J. Cahill Inc. to learn about how we can help get your home comfort systems to work at full capacity.