HVAC reviews in Carol Stream, Illinois

Was very good to give me a warning that the heat exchanger was going bad and that a new furnace would be in my future. I was given probably a year's lead time prepared myself psychologically and financially of the expense coming. Coincidentally I had a different HVAC guy in my house shortly after that warning who confirmed that the heat exchanger was going. I was able to follow up with a CO2 warring device. I was happy with the warning.

We have been using Shamrock for 25 years or so. Whenever we needed to repairs or to replace our furnace we have always used them. They remind us for our yearly furnace and air conditioning checks and always call to let us know the name of the technician who is on their way to our home. They really care about their customers. I highly recommend Shamrock for your furnace and air conditioning needs. They are excellent!

Shamrock is great, and I plan to use them for decades. Very realistic, clear, and honest in their explanations and quotes. They showed up on time, were polite and friendly, answered all of my many questions, did a great job on the install, stayed on schedule, cleaned up after themselves, and clearly and patiently explained my new furnace/humidifier system. The final bill was exactly what they quoted me. I would gladly recommend them to friends and family.

The Technicians that always come from Shamrock are such nice and Friendly men. They are very honest and fair with pricing. Whish trust is huge for me. I have been using them for almost 9 years since I moved oht here and couldn't be happier. They also just replaced my ac and heater last year and it was a very smooth and affordable change. Christina in the office is so helpful and always friendly when she calls.

Your employees are trained to lie. Im somewhat handy and I understand the furnace codes to my house. Kept telling me it was three, oh now its 4. Funny but I kept getting 9. Which means low voltage. Then blamed it on my Thermostat that it had low battery. The battery is fine and power by my system in the house lol. Charges me $129 to say its fine and running then I have the same issues couple days later and had to reset once again at the switch to make it work again and yes same code again 9. Over payed and didn’t resolve the issue. Watch google delete this review.

Edit: turns out it was a dirty flame sensor and according to every website I visited, was the most common issue for hvacs based on the symptoms I provided. It was as simple as rubbing steel wool on it for it to get clean and that got it to work again. Replaced the Thermostat for no reason and the technician charged $129 service fee and he didn’t even check the flame sensor. I will be reporting this company to BBB.