Welcome.

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.

Plumbing Contractor in Evanston, IL

Since 1890, John J. Cahill, Inc. has been providing the homeowners of Chicago's North Shore with top-quality service and expertise in some of the most vital areas. From your plumbing to your AC to your latest remodel, you can count on our family-owned business to take care of it to your expectations. There’s not one plumbing contractor in Evanston, IL, who can do for you what we can. Our business has served the community for over 125 years, so you know you’re getting the stuff of experts when you choose us.

In addition to licensed plumbers, we’ve got NATE certified technicians and professionals in all areas with decades of experience. The Better Business Bureau accredits us with an A+ rating, and you need only look at our testimonials page to see that we’re well-known for providing excellent service. Homeowners appreciate our free estimates and versatility to work with a number of top brands. When you need your modern comforts back, we provide them in full.

Your Plumber and Your HVAC Contractor

Both your plumbing fixtures and your heating and air conditioning are essential, expensive investments. Wouldn’t it be great to know that you could count on exceptional service for both of them from the same place? John J. Cahill, Inc. is happy to offer exactly that, with 24-hour emergency services for those times when the repairs simply can’t wait. Got a leak or a clog in the middle of the night? No problem! Count on us for a fast repair.

Our AC repair company even arranges service agreements to help you stay on top of your maintenance. Why wait until a problem arises to call a technician when you can have one come out and perform regular checks on your home systems? A service agreement is an excellent way to save money and get the most out of your system while doing away with the risks of not having any hot water for your morning shower and much more. Any of our friendly experts are glad to set this up for you.

Home Remodeling for Kitchens and Bathrooms

We don’t just repair the underside of sinks in these rooms; we can renovate the entire area. After all of these years working in homes, we know how these frequented rooms function and what they need to be at their best. Between remodels, AC service, and plumbing, we’re your source for some of your home’s most important work.

Contact us to ensure your home comfort systems are working as intended. We can repair or upgrade much of your home or business in Evanston, Illinois, or the surrounding areas.