Business Details
We are John J Cahill, a familyowned business that has served the North Shore community since 1890. We have operated for more than 135 years, building a legacy of trust, quality, and integrity through five generations of the Cahill family. We employ licensed, union plumbers and pipefitters who possess specialized expertise in plumbing, heating, cooling, and remodeling. We solve complex problems quickly, whether it is a burst pipe, a failing boiler, or a residential renovation. We perform every service to the highest professional standards, ensuring safety, reliability, and longterm performance for our clients. We guarantee peace of mind by responding 24/7 with an orange service truck that signals our immediate presence.
We are committed to client satisfaction through transparent processes and consistently delivering fivestar experiences. We maintain rigorous quality controls and adhere to industryrecognized certifications, including EPA certification for our cooling technicians. We offer a comprehensive service portfolio ranging from routine maintenance to fullscale kitchen and bathroom remodels. We continuously invest in training and technology so each generation of Cahill professionals stays at the forefront of the trade. We remain dedicated to the community we helped build, supporting local initiatives and fostering lasting relationships.
We are committed to client satisfaction through transparent processes and consistently delivering fivestar experiences. We maintain rigorous quality controls and adhere to industryrecognized certifications, including EPA certification for our cooling technicians. We offer a comprehensive service portfolio ranging from routine maintenance to fullscale kitchen and bathroom remodels. We continuously invest in training and technology so each generation of Cahill professionals stays at the forefront of the trade. We remain dedicated to the community we helped build, supporting local initiatives and fostering lasting relationships.
Highlights and features
- We have 135 years of continuous service since 1890.
- Our union plumbers are licensed and EPAcertified professionals.
- We guarantee 24/7 emergency response with an orange service truck.
- Our customized heating solutions maximize efficiency and comfort.
- We provide free estimates and transparent pricing for all projects.
Services
Plumbing Installation
Our licensed union plumbers install new plumbing systems for residential and commercial properties with precision and code compliance. We use highquality materials and meticulous workmanship to prevent leaks and ensure lasting durability. Clients benefit from immediate functionality, reduced maintenance costs, and peace of mind.
Sewer Rodding
Our experienced union plumbers perform sewer rodding to clear stubborn blockages in residential and commercial drain lines. Using specialized equipment we remove roots, debris, and buildup without damaging pipes. This service restores proper flow, prevents backups, and extends the lifespan of your plumbing system.
Sump Pump Repair/Replacement
We service and replace sump pumps for residential homeowners and commercial properties, ensuring reliable water removal. Our technicians diagnose failures, install highcapacity pumps, and perform thorough testing. Clients gain flood protection, reduced water damage risk, and longterm system reliability.
Kitchen Remodeling
Our skilled designers collaborate with you to create a personalized kitchen vision that meets your functional and aesthetic goals. We source premium cabinets, countertops, and appliances while ensuring precise installation and code compliance. Homeowners enjoy increased functionality, modern style, and a significant boost to property value.
HVAC Maintenance Program
Our EPAcertified technicians conduct comprehensive HVAC maintenance to keep heating and cooling systems running at peak efficiency. We inspect, clean, and calibrate all components, identifying wear before it leads to costly failures. Clients benefit from lower energy costs, improved comfort, and longer equipment lifespan.
Reviews (6)
Cindy S.
Jun 20, 2022
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Water Heater Install. I called around for a quote and Cahill was by far the cheapest (100s less than other places ). Some plumbing companies asked me questions such as how many stairs to water heater location, is it in a hard to reach area and so forth with it costing me more every time I answered yes. Cahill gave me a flat rate to replace my 21 yr old water heater. They honored that quote but a rusted valve needed replacing so I did have to pay extra for the valve.
The foreman and another employee came first thing in the morning, fixed everything fairly quickly and professionally. They never complained about the age of my water heater or rust or other things that occur with an old water heater. The only issue was the misinformation about payment. The office said I can pay the following week when they mail my bill but the foreman wanted a check in hand right after the job was finished. I would recommend having a check ready with full payment the day of install. Quality of install was above board and I would highly recommend them to install big ticket items.
The foreman and another employee came first thing in the morning, fixed everything fairly quickly and professionally. They never complained about the age of my water heater or rust or other things that occur with an old water heater. The only issue was the misinformation about payment. The office said I can pay the following week when they mail my bill but the foreman wanted a check in hand right after the job was finished. I would recommend having a check ready with full payment the day of install. Quality of install was above board and I would highly recommend them to install big ticket items.
Ronnie Dugan
Jun 07, 2022
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Excellent company but the rates they charge residential customers are too high. If you need a faucet changed or other relatively simple jobs like toilet replacement, go find another plumber or be prepared to drain your bank account. Too many good plumbers are charging sky high rates with Cahill leading the pack. That said, I use them regularly for other complex tasks which justifies their high rate.
Ric Beyer
Apr 25, 2022
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Called three companies, quickest reply. I new what I wanted he didn't have it, but had no problem getting it. Had a new hot water tank in less than 48 hours! Thanks John
Mark C.
Feb 08, 2022
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Quality work conducted fast and safely - replaced water heater and removed large tempering tank which was leaking - 24 hours from call
Ben E.
Nov 01, 2021
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Sometimes "playing plumber" doesn't work and you need a professional! Highly recommend John J Cahill of Evanston! Reliable! Trustworthy! And reasonably priced! (Yes, that's a tampon applicator that was flushed and wedged in the workings of the toilet!) - please visitors, only flush toilet paper! And respect the courtesy flush!
Amy Stockli
Aug 24, 2021
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Never again! Used Cahill for standard boiler maintenance, which included replacing the thermocouple, Dec 2019 @ cost of $350. All good. Had standard maintenance performed on the boiler again Jan 2021, again included replacing the thermocouple. This time the cost was $518! Less than 3 months later, we didn't have any heat. To have a Cahill service person come out it would be a brand new call and charge - even if it was the thermocouple that was just replaced 3 months earlier. CAHILL ONLY COVERS THEIR LABOR FOR 30 DAYS! Insane!
I used a competitor and sure enough it was the thermocouple. There are way too many other options in the market than to go with this one who is not only one of the costliest but also doesn't stand behind their work.
I used a competitor and sure enough it was the thermocouple. There are way too many other options in the market than to go with this one who is not only one of the costliest but also doesn't stand behind their work.
