HVAC reviews in Carol Stream, Illinois

Great service. The two service men who came today were friendly and knowledgeable. We love Shamrock Heating and Air Conditioning.

Carlos is so kind and informative. He explained everything to me and answered all my questions. He is very kind and respectful. Truly trust Shamrock. Have been with them 30 years.

I’ve used Shamrock Heating and Air for many years. The technicians are always helpful and kind. Thank you, Carlos for servicing my furnace today!

I’ve been a Shamrock customer for at least 30 years. They’re always friendly, reliable and professional. I highly recommend them.

We been using shamrock since the mid 90s. They installed our first furnace and ac in 1998. They have provided preventative maintenance and repairs when needed on the system every year for us. Last week our ac finally gave out.

We called shamrock and they provided immediate service to determine the problem but it was not fixable. They explained our options and provided a variety of solutions. We elected to replace both our furnace and ac. The price was competitive and they sent three technicians the next day to install the equipment. They were polite friendly and completed the job quickly getting the system working to cool the house in 90 degree temperatures.

We couldn’t be more pleased with their service and system maintenance. We can strongly recommend this company who we’ve used for over thirty years

Excellent customer service! Called at 8:00 AM as a new customer looking to have my AC fixed and they were promptly at my house by 12:00 PM. Chris was able to diagnose the problem and assist with getting my AC back up and running within 20 minutes. My in-laws recommended Shamrock and it was an awesome experience! Will absolutely be a returning customer!

Shamrock not only installed my new heating and AC system back in 2019 that I have brought them in annually for service checks. They are timely and have kept my system running at peak performance.

Flo provided excellent service, explained everything he was doing. Very helpful. Have been dealing with Shamrock for over 30 years.

Great service. Very pleasant staff and easy to schedule appointments. My parents and I have been using Shamrock for years.

Shamrock has been servicing my furnace and air conditioners for years.
Always prompt and honest. It’s nice to never have to worry about that in this world.

We have been customers of Shamrock for over 20 years. They come each spring and fall to service our a/c and furnace. We have always received great service. They call when they are on the way and have always arrived when scheduled. When you call their office to schedule service you talk to people….no “press 1, press 2” or “we’re out of the office, leave your name and number”.

If the technician sees any issues that might need to be addressed in the future, he explains it and gives us an estimate of the cost. There is never any pressure to agree to this additional work.

In 2013 our neighborhood flooded overnight after a very heavy rainstorm. Our basement had significant flooding and our furnace was ruined. I called Shamrock that morning and they were at our house the same day to replace it.

I have recommended Shamrock to many friends and neighbors.

I have used Shamrock for 10 plus years and they do quality work and have fair prices. They never try to talk you into getting something you don’t need. You can trust them.

Been using Shamrock for years and have always had great service. One year when the temp was below zero and furnace malfunctioned, they came quickly to repair it. Ac also repaired once and still working great years later!

Very friendly, prompt, professional service. They kept me informed of what was happening every step of the way. The tech took the time to explain everything that he did to make the repairs.

We have been customers of Shamrock for many years. Shamrock installed our new furnace and A/C and have maintained it ever since. The recent "tune-up" was done by a 3rd generation member opf the ownership family. Pleasant, professional, family owned business...

We had our furnace and humidifier cleaned. The technician was on time, knowledgeable and answered all our questions. We will definitely call Shamrock again.

Furnace and AC were not turning on. Thermostat said service needed. Called and had someone out within 2 hours and fixed within an hour. It was a wiring issue. Reasonable price for the service. Very polite and nice. Honest people.

Shamrock always does a great job for me. Their techs are prompt, courteous and professional and always go above and beyond to make sure the job is done right. Recently I had two repairs to be done. Dan handled the first one and did a great job replacing a fan without damaging the wall, which was expected due to the tight fit. This past week I had a back up in a pipe and Rudy took care of it promptly and expertly and took steps to ensure the issue doesn’t happen again. The office staff is very courteous and professional as well, and always calls to alert that the tech is in route or if there are delays. Great company to deal with!

I have used Shamrock Heating and Air Conditioning for at least 20 years. I am very pleased with the the Service Technician, who was Professional, courteous, and answered my questions completely. I scheduled a Furnace Cleaning before the weather gets colder. I will be calling Shamrock in the Spring for an A/C tune up. The Technician discovered that my Ignighter was badly loaded with Carbon. I replaced the Ignighter,and now I have Peace of Mind, that my Furnace will not fail this Winter Season!

A while ago Shamrock identified an ignition part that was wearing. Every tuneup we were told (last by Jovany) approximately how long we could go without replacing and a ball park cost to replace it so we could save up. He even explained how we could clear our drain pipe ourselves if we wanted to do ourselves (a little water was around furnace base). Today our service person, Nathan, who serviced the house humidifier and furnace, showed us two parts. The first one was a battery. He showed us the voltage output label on the actual part. He then used a meter to show how much voltage the part was putting out (less than label stated). Same with an ignition part. Showed us what it should look like and what it is now. We could still hold off but would need soon. We decided to replace the parts.
Nathan & Jovany were very knowledgeable and explained it so we understood.

I have been using Shamrock Heating and Air Conditioning 15 years! Chris does a great job and always gives me a heads up when something other than regular maintenance is needed. Prompt, Reliable, Friendly Service.