Gremillion Mechanical Heating & Air Conditioning

When Brett come to fix the furnace one week ago, we thought that it was good. We also told him that we would wrote good review for him. However, just one week, the furnace went out again. We have been trying to contact him again but never got any response. So disappointed.

Three out of four bedrooms in my two flat do not have radiators.  Brett walked me through my options and helped me pick the best solution.  He ran the pipe and installed the heaters in a way that was the least disruptive to the tenants and myself, and kept the integrity of the building.  There was a problem with one of the tenants units and he handled it almost immediately.  (Tenant was grateful it was handled so quickly).  Price and workmanship excellent.  He also maintains my boiler on a yearly basis.  Now I just need to find an electrician as good as Brett. 

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I have a small commercial property. On Sunday, a tenant called to say the building had no heat. I went to Angie's List and found a person whose business was within five miles and could be reached on Sundays. I then read the reviews on him. I called Brett and left a message. He called me back within five minutes and gave me a two hour time frame to expect him. He called me at the beginning of that time frame to tell me he would be there in twenty minutes and he was. He was polite, efficient and fixed the problem. He gave me pointers on the maintenance of the furnace. His price was very fair. I will call him soon to do an inspection of the heating system.

Furnace was not working properly. Called Brett he called right back. Asked about the issue. Fit us in his schedule and fixed the problem next day. Very nice and professional. I will using him for maintenance going forward. I am a new customer!

It was an after hours call.  My heater had stopped working and the winter ambient temperature was such that I couldn't wait for the next business day.
Brett answered the phone, arrived promptly, identified the solution, and had the necessary part on hand.  He installed the igniter, inspected a few other things, gave me some tips and was on his way.  Demeanor was friendly and courteous.

I first contacted Gremillion last summer when I needed A/C repair. At that time JD and Brett identified some issues with my furnace (I was already aware the need for replacement was near). I contacted Brett in November to discuss furnace replacement further. I had a new furnace within a couple days of the call. Overall, Gremillion was prompt, professional, and very easy to contact and work with...great experience! 

We called Brett to come in and inspect the boilers for our house, as the pilot light had gone out on one, and I couldn't get it to stay lit. I was fairly sure it was the Thermocouple, but I wanted both boilers inspected regardless. Brett came on the evening of the day we called him, and was very helpful. 
   During the inspection, we realized the 2nd boiler was rusted through and leaking Carbon Monoxide into the basement. He called me the next morning with a quote for a new boiler and came that day to replace it and get the 1st boiler running. The response time was incredible and all of his guys were extremely friendly and hard workers. 
   Brett was extremely helpful throughout the whole process and even waived the initial service call fee and parts/labor for the 1st boiler.
   I definitely intend to use Gremillion Mechanical in the future.

Both experiences were great and the work performed was of great quality!

I have had my share of bad experiences with contractors and similar companies, so it was great to have a problem (and stress) free experience with this company.  Brett was extremely professional, courteous, informative, and punctual.  Over the summer my HVAC unit stopped working.  Living in Chicago, there was no way I was going without air conditioning (or heat) for too long! I contacted him and he was very responsive. He was scheduled to come by within a couple of days.  When he wasn't able to keep the appointment due to an emergency, he notified me immediately and scheduled a follow-up appointment.  He was very timely and assessed the problem (faulty motor) and he and his staff replaced it that day.  He also explained the process and provided maintenance recommendations. 

Recently, my water heater pilot light kept going out and I realized that I had severe leak.  I immediately thought of calling Brett to see if he also serviced water heaters, and fortunately he did.  Again, he was timely, professional, and informative, returned the following day, and installed a new water heater (and a couple of other fixtures) in less than a couple of hours.  The area was also very clean and tidy after the work was completed (and you can imagine the type of mess that a leaky water heater can cause)!

Having two major household appliances malfunction in a short time frame can be very stressful.  Fortunately, there are companies like Gremillion that are committed to providing quality and affordable services!  I couldn't be more pleased.

These guys are great! Very honest and trustworthy and I would highly recommend them. I've been using Brett Gremillion and his crew for several years now for repairs and maintenance of our home's HVAC system. Brett is great about responding to his messages and typically able to begin work within several days (quicker for emergencies). Gremillion's rates are entirely reasonable and Brett and his crew are very professional and courteous. I've also found Brett and his crew to be very patient in explaining necessary repairs and, more generally, how my HVAC system works.