A/C was not cooling the house with older A/C unit, so I called C&J. Even though they were busy and it was late in the afternoon, they stopped by and fixed the problem quickly and at a reasonable cost. Was very straight forward and honest about the repairs. read more

Responsive, knowledgeable, professional, and friendly! I called this company for an estimate on replacing my 25-year-old furnace and was visited by Jim that day. He was able to remedy the problem (at least temporarily) but still provided the information in case I need to replace it in the near future. He answered all my questions with patience and pleasantness. I was glad to learn they do plumbing too and will definitely keep their contact information handy! Keep up the good work! read more

The gas company shut off our gas after finding gas leaks in three areas (yikes!). Leipart understood the urgency and sent two people out within about two hours. They fixed the leaks. Courteous, professional staff. I highly recommend them. read more

Jim did a great job of contacting me timely and was honest with his assessment of the system and repair. The repair was completed and I felt I was charged a fair amount. I would recommend C & J Heating to anyone and will use again in the future. read more

Amazing company! Would give him 6 stars if I could. Jim called me back immediately on a Sunday and stopped by when our AC kicked off. Our unit is ANCIENT (20+ years old) and most people would have taken one look at it and told us we needed to install a new unit. Jim had it back up and running in 20 minutes and walked us through exactly what happened that kicked it off. Also gave us some advice on how to keep it running for a couple years longer. Really nice guy and will be calling him again for any future AC or furnace issues! read more

I was BLOWN away by these guys, pun intended. They were amazing. I called them yesterday right before noon and explained my situation, our a/c kept shutting off. We had another company come out twice, and let me know I would probably need a whole new furnace. Right away they told me that didn't sound right, and there was probably something else going on. They had someone out to the house to diagnose it and let me know what was wrong within four hours. The technician was extremely diligent in checking over the system and let us know it was not with the HVAC system at all, it was actually an electrical problem. They got us in touch with an electrician who came out to the house THAT DAY, and stayed to fix our issues until almost 10 pm. There aren't many business' like this around anymore. read more

Cant say enough....they answer when called and make same day appointments. They tried as best they could to fix the issues we had before having to do a major repair. They were great each time they came out! read more

Amazing customer service! Can't say enough about the guys at C&J. We've dealt with both Jim and Dave on two separate occasions and they are extremely professional, timely, and honest. If you are looking for a trustworthy repair man that isn't just out to make a quick buck look no further, these are your guys. We will be calling them in the fall to get our system ready. They've got a loyal customer here! read more

Okay we called on Thursday at 3:30 after realizing the house was over 80 degrees to see how much it would be to have someone come out and I didn't want to pay a "emergency" fee. He laughed and said they don't do that- same price. He did say he was swamped but so long as I was flexible he could make it out at some point- he did. And I can tell you the fan wasn't moving it was dead- Total repair was about two hundred:) and they fixed it last minute! They were super friendly. Highly Highly recommend! read more

We noticed we had no heat at 3:30am this (Saturday) morning-there were frost warnings last night and our house was really cold. We called Nicor Services, who we have a contract with, and was told they could send someone out Monday morning-or between 5pm and 9pm today, but for an extra charge. We then called C & J around 7am and was told a technician would come out between 8:30am and 9:30 am today. Dave-our technician-was amazing and diagnosed the problem immediately. He was here for a short period of time and got the problem solved quickly. We would highly recommended C & J and will definitely use them for any future issues with our furnace. read more

Friday night 8pm - 62° inside- 32° outside - jumped on yelp - found C&J with 5 stars and 42 reviews - ad says open 24/7- called, fully expecting a machine- wow, he picked up - he asked me some questions, and he said he could be out about in 1hour to and hour 15 minutes. The team came out in the cold - done within 40 minutes. They were super friendly, respectful, and with firm handshakes. I am very warm and toasty now. C&J out of Naperville has 43 reviews. read more

Absolutely the best experience I have ever had !!! After experiencing trouble with my furnace blower motor, I started looking for HVAC companies on Yelp to come out and look at my unit. I was fully expecting for someone to tell me that I needed to replace my 20 year old Carrier furnace and AC unit. As you can imagine, it was not a bill that I really wanted to spend. While doing my research I ran across Leipart Heating and Cooling. I was overwhelmed with the the amount of reviews they had as well as the number of 5 start ratings. I also come to learn their sister company C&J Services does Plumbing and has the same great reviews!! I decided to send an email requesting a quote in which Jim responded almost immediately. We exchanged a few emails and after a short time, I decided to give them a call to schedule an appointment. When I got a voice mail message, I decided to hang up rather than leave a message. I figured I would call them in the morning. It was at this time, my luck had changed. Jim called me back, even though I didn't leave a message. I discussed my problem with the blower motor. When I asked about his availability, he said they were booking appointment for tomorrow between 3-5pm. He asked me where I lived and it turns out he was on a service call just down the street. Without having to call the office to schedule an appointment, he agreed to stop on by. Keep in mind...this was at 10:30pm!!! Jim entered the house, introduced himself and began trouble shooting right away. He thoroughly explained the components of the furnace and explained what he thought was the problem. He removed the capacitor and replaced it with a new one. Right away, the furnace blower motor started working properly. He physically checked the furnace...made sure the tubing was getting hot and cold. He made sure the AC unit was cycling properly. He went around the side of the house and checked the pressure at the compressor. And to top things off, he used a flair temperature gun to measure the air temp of the air coming out of the vents. He was VERY thorough and professional. Exactly what I was looking for from a person who has 20+ years in the business. Jim was both kind and professional. He came in with a game plan and executed it perfectly. I am forever thankful. If you have any HVAC needs....Call Jim at Leipart Heating and Cooling!!! You can rest easy knowing you will be taken care of. Thank you Jim...I really appreciate your quick response and honesty regarding my repair. I will definitely be calling them again for my HVAC and Plumbing needs in the future. read more

I've used this company twice - once for a furnace that went out in the coldest night of winter and just recently for a broke ac unit on the hottest day yet. Both times I called during non-typical business hours yet they came out asap and fixed our problems quickly. We will call them again for any issues we have and highly recommend them to anyone. Hats off to Jim for running his business the right way. read more

On one of the hottest days of the summer, our a/c decided to stop working properly. It was 89 degrees in our house and we were miserable! We were desperate to get the problem fixed and after reading several wonderful reviews, I called Leipart Heating and Cooling. Jim answered and told me someone would be calling in a few hours when they were on their way...and that is exactly what happened. Our technician John called around 9pm and we met him outside and told him the issue. He knew right away what the problem was and was able to fix it in a short period of time. We were thrilled! I'm so glad I discovered this business and will happily use them again in the future as well as recommend them to friends and family! read more

I contacted another company when my AC started freezing over. They told me they could be there next week. I then called Leipart and they came out the same day and tried to fix a coolant leak and recharged the coolant. Everything worked fine for two weeks but then the unit froze over again. I called Leipart at 8AM to leave a message and was surprised to get a call back instantly. They came back out again that day and realized the leak was in the evaporator coil and the coil needed to be replaced. To my surprise, they credited me the cost of the previous repair attempt towards the new coil. They installed the new coil same day and my wife is now happy. read more

My furnace wouldn't stay on when the cold weather appeared this fall. After first cycle it wall fall into an error and 3 hour lockout. I called C&J and then dispatched someone quickly. Within no time he replaced a part and said this was common. Furnace turned on and he left. That night it went back to error cycle again. Called back and they sent a different person. He spent many hours looking and the system and on the phone with his supervisor. He told me that the furnace is giving multiple error codes and must be a bad circuit board which was very expensive to fix. He quoted me a brand new $9500 furnace and AC unit to replace my 7 year old high efficiency Carrier unit. I decided it was time for second (or third in this case) inspections. While researching I came upon a website which advised checking valves, tubes, etc for blockage. On only the third tube water came spilling out. I drained it and the furnace started up. It ran for a few days and then stopped again. The same tube was full so I looked deeper and found the condenser trap clogged. I flushed it and started the furnace again. It has been running for weeks with no repair parts required. It appears that the issue is that as soon as the temperature drops to freezing the water in the lines creates condensation that triggers the sensors to alert there is interference. So why would I advise calling an expert plumbing service which had 2 separate people who couldn't check if the drain was clogged? I have no idea how HVAC and Furnace systems work, yet I figured it out. This sees to be very important as basic check that they should have on a checklist. Instead they advised me to get an entire new system instead of just flushing dirt out of a pipe. So say what you want about this review, but it is based entirely on the lack of performance of their technicians. There is no personal bias or animosity. They came our quickly and did not double charge me for the second visit. But I don't have $9500 to pay to unclog a drain. read more

I was looking for a good HVAC company to install a humidifier on my furnace. After getting an obscene quote from a local company (one over $3000 - what a joke!), I called C&J for an estimate. I told him the square footage of the house, and he made a recommendation and gave me an estimate over the phone. They were out here Monday morning, and I will definitely have them back for all my HVAC needs. They are wonderful. It's nice to finally find a hvac company that is not trying to take advantage of their customers, and offers a fair price. These guys deserve your business! Thank you so much. The service engineer was really sweet, and very quick. He really did a great job. Thanks C&J! read more

AC wasn't working. A guy came, literally took 10 minutes to look at my AC. Threw out some costs I didn't like, I said I'll call you back if I decide to go with you guys, what do I owe ya? He said usually it would be $125 for a service fee but since I didn't do anything, it's $50. He was a nice guy and I won't go as far as blaming him but seemed a little ridiculous to pay $50 to a guy who took 10 min and admitted to not doing anything. Serious "labor" costs with C & J is what I learned from this. Let's say it took 15 min to be generous...$200 an hour?????? read more

We called them when our a/c stopped blowing cold air. We didn't feel it was too much of an emergency but after a couple of days of heat we had to call them. They were fair and reasonable. Recently, during a bit of a cold spell, our furnace stopped blowing hot air. We called them again and while so many other might have tried to sell you a whole new unit, they were honest and again reasonable. read more

I have a baby, and came home today from work at 7 pm, to no air and house at 89 degrees. I was so in fear of the baby overheating and thought I'd have to go to a hotel. I called, and dispatch immediately understood my concern and promised to send someone out ASAP. I ended up getting the owner, and he made me feel like no matter what, they'd get my air back on. And he quickly did, while giving me tips on filter changes, checking the pipe temps, brushing off my unit, and fixing a breaker. I'm beyond thankful and impressed at the work ethic, intelligence, and fair pricing. They will forever be my go to HVAC. read more

Jim arrived 90 minutes after I called at 6:30 am. He quickly detected the problem, a cracked hose, and was finished in 10 minutes. I was expecting the worst but was extremely happy with a $50 service call (no diagnostic fee or $200 hourly rate)! Our previous technician was good but cost an arm and a leg. C&J will be the first called from here on out. read more

We called this afternoon to see if someone could come look at our "not so cold" air conditioner. By 2:30, Dave was out here, quickly assessed the problem, and by 3:15, the house was already a few degrees cooler. I really appreciate the urgency and quality of work from C&J! It's such a relief to know if anything happens to our heating or air, we have a reliable company to reach out to and won't be charged a small fortune! HIGHLY recommend C&J!! read more

I had these guys come out and to take a look at my AC unit bc it wasn't cooling. They came out quick but wanted me to spend an exorbitant amount of money for a problem I didn't have. I wouldn't recommend this company as they went the motions and didn't really explain my real problem. Be careful. read more

Our family cannot thank Jim and his team enough for the continued excellent and quick service. The first time I reached out to Leipart Heating and Cooling was earlier in the winter when we had some concerns in our ducts and needed to turn off the heat. When Jim learned that we had a toddler, he offered to come out late and night and help us out so we could turn the heat back on. We decided to wait until the next day and he was out first thing to help us. The heat was quickly back on in the house. When our furnace stopped working this morning in below zero temperatures, I never thought twice about calling Leipart again. Despite many people in our situation, Jim was able to send someone out within 2 hours and the problem was completely fixed. Leipart is fair, upfront, accurate and a quality company. I will call them any time we have a problem and I highly recommend this honest and skilled company. read more

My A/C stopped working on Monday night and by Tuesday morning the house was 85 degrees and climbing. I called 4 different HVAC companies in the area and Leipart was the quickest to come out within a couple hours. Brent Noll was the lead technician that was assigned to my house. When he called to let me know he was on his way I explained what was going on and he already had an idea of what was up. He worked fast and was very knowledgeable and we even had some good conversation while he was doing the fix. Within less than an hour he had the air conditioner back to running smoothly and even took the time to ensure the temperature exiting the vents in the house was correct. Additionally he schooled me on a couple of tips when it came to maintaining the health of the unit in the future. Couldn't have had a better experience... would definitely recommend them and will be a go to if I ever have problems again. read more

I haven't had service on my furnace and air conditioning unit for a few years and noticed last summer that the air that was blowing out wasn't as cool as it used to be. I had an appointment set up with another company who cold-called me a few months ago. When it came close to the date, I looked them up and found all these complaints on line about their company. I immediately called them and canceled the appointment. Then I went on Google and typed in heating and air conditioning companies and C & J popped up. All of their reviews had 5 star ratings. I liked that, so I called and Jim answered the phone. I could tell he was working as he was talking to me. I explained that I didn't have a huge emergency that my air that's coming out of the vents isn't as cold as it used to be and it wasn't a rush for him to come over. He instantly said, how about this Saturday. Which was just a couple days later. I was shocked that he would come out so fast. When he came on Saturday, he checked the pressure and said it wasn't a freon issue that there's plenty of pressure and asked if anyone had ever cleaned the coils and showed me where they were. I told him I don't ever remember anyone doing that. He then sprayed it with a cleaning solution and that was it. The air was coming out cold again. I was so nervous this was going to cost me a lot and it ended up being a simple fix. I told Jim the main reason I stopped having service is because I couldn't afford the monthly payments I was paying towards a heating and air conditioning company. He told me I was totally overpaying that company. I found out that day that I will no longer be neglecting my furnace and air conditioning units anymore because I found a company that I can trust and is reasonable too! Jim is an all-around good guy who will not steer you wrong like some other companies will! read more