Reviews of local pros in Carol Stream, Illinois

It’s always a pleasure scheduling our maintenance visits with Shamrock. Our technician is always prompt, friendly, honest, courteous, and efficient. He doesn’t try to push work that we don’t need done. We look forward to seeing him in the spring and fall each year!

Got 2nd opinion from Shamrock re: a capacitor on my furnace and am glad I did. Shamrock installed furnace in 2018 and I knew it was still under warranty. Carlos was wonderful and took me through the step-by-step process to evaluate the capacitor. It’s nice to know there are still businesses that operate with integrity.

Your technicians are the best I’ve ever dealt with. On time, polite and informative throughout the service call. Taking time to explain the billing as well as thinking ahead with a future scheduling. Thanks for keeping us cool!

Amazing experience! After AC troubles that continued to get worse, Shamrock responded quickly and were able to help us out quickly. Chris did a great job and went out of his way to explain everything to us. Will definitely be calling again in the future.

Service has been very professional over the past 30 plus years! The installation on our new A/C unit last season was excellently done. There was a mistake made after install, but was caught and corrected retested before leaving. Forgot dryer on high side of system. That to me was a professional and honest mistake ! Well done guys!

For 22 years, I have been a satisfied customer of Shamrock Heating & Air Conditioning in Chicago’s western suburbs A high quality, expert family-owned business, they are consistent, friendly, and professional. They service my furnace and my AC annually — both of which they have replaced. Easy to schedule, always on time, and priced fairly. Clear explanations and great common-sense advice. I couldn’t be happier.

I have had shamrock for maintenance and will use them for my next furnace install. I trust their company.

Top notch. I’ve been a client 36 plus years. Never pushy, no pressure. Just honest discussion about options available.

I’ve been using Shamrock for almost 4 years now. The previous owner used them as well and I continued using their services. Chris and Rudy have been great! Always professional and knowledgeable every time they come over for HVAC repair.

I have our furnace/ air conditioner serviced twice a year, since they installed it back in 2018. Haven’t had any problems! They are efficient, respectful and honest. I recommend them.

He found the problem right away. It was a switch. He still looked at the entire system to assure me that all is well for now. Great service and communication skills.

Always a pleasure to do business with! Excellent technicians who are friendly, professional and thorough! They helped solve some long standing troubles with our system when other companies could not

I’ve been a Shamrock customer for years because I appreciate the quality of the service. All of the employees are so friendly too! Today, the tech (Flo) was so helpful and explained everything about our air conditioner tune up. It’s so great to have a company that you can trust, and enjoy doing business with too!

Shamrock Service technicians are great! They have always been knowledgeable Honest, and I really appreciate them!

I would highly recommend Shamrock Heating & Air Conditioning. They always have a time you choose with them so you are not left waiting a whole day. They notify you when your technician is almost at your residence. Customer service is excellent and quite easy to work with. All staff are professional, friendly, respectful, and truly want to provide you with the ultimate service.
I love how they explain things and make sure you understand everything. You can ask they anything or call them if that you are not quite sure. 5 STARS for sure.

I have used Shamrock for over two decades to take care of my heating and A/C needs. Glad there are still businesses that do good, honest work.

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