Yes, my old a/c decided to wait until the heat wave to give up the ghost! The system needs to be replaced. I arranged for 3 quotes and in the end, I chose McNally's. Mark Estrada is the Comfort Advisor. He was exceptionally polite and courteous. He explained everything in easy-to-understand terms and answered all questions in a very professional manner. He did not attempt to upsell or offer product that was not necessary. He offered a great value for what was best for me. The decision to go with McNally's was now an easy choice. Meanwhile, raging heat and no a/c, Mark arranged to have a technician come out and at least get me up and running until the new unit will be installed. Esteban was the technician and it was soon evident that he was a true professional. Within minutes the a/c is on and running. Esteban was very friendly, courteous and polite and I am now even more comfortable with my choice to use McNally's Heating and Cooling. I am only sorry I can only give a 5-star review. This type of responsiveness, professionalism and courteousness demands a TEN-star review! Thank you Mark and Esteban for all you help and effort! John W, Elgin, Illinois read more

Tried the "your heat exchanger is cracked" scam on me, immediately after taking of the cover. I was not born yesterday. I KNOW it takes a lot longer than 10 seconds to diagnose something like that, and I called about a rattle - it's summer, I didn't ask you to look at the furnace at all. Tech was rude and defensive and I'll take my business elsewhere. P.S. I also realize he parked his work truck in the driveway which is really unusual and a bit presumtious. No other service people I've had here have ever done that - not even large appliance and furniture deliveries put their trucks in the driveway. read more

Order for new base Lennox condenser and coil w/install $6319. McNallys installed and unit is nonfunctional. Ice and water damage on unit and flooding within a day of install. Unable to send same day technician to review or advise because of frost. They unable/unwilling to send after hours service for the next day (I cannot be home during 9-5 business hours due to work). This has been a nightmare situation. Update: McNallys sent a tech out on the following weekday to fix issue free of charge, which was a motor blower capacitor that had fried. read more

See all

Had them for duct and dryer vent cleaning. Very accommodating and flexible in appointment time. Technicians Jose and Saul were prompt, on time, very knowledgeable and good sense of humor. They did a great and very thourogh job. I will be recommending them to my friends and family. read more

My a/c kept on breaking when it reached past 80 degrees (which happened a lot in the summer). My unit was less than a year old. I had over 4 HVAC companies look at the issue. No one could figure out why and would just replace the blown part. It wasn't until McNallys came and fixed it. They uncovered the reason was because the thermostat was hooked up incorrectly. Excellent detective work. They were professional and priced competitively. When I need HVAC work, they are my go to! read more

Couldn't be happier with McNally's! Russ is the best. Needed a new AC unit in the midst of a 90 degree stretch. Took care of us quickly and efficiently. Did an outstanding job. We got both quality and value. Happy to support a local family owned business. I eagerly recommend them! Fred & Sue M read more

The days of friendly service are not over; at least where McNally's Heating and Cooling is concerned. From the installation to a bit of tweaking of my new system it has been one good experience after another. I would not hesitate to recommend them nor should one hesitate to seriously consider this modern company with its old fashioned values and caring expertise. read more

They were on time, but unfortunately the air ducts were a different type then they service. They made a recommendation and I believe they were very hones and tried to be helpful. Employee was very polite and explained things very well. read more

Omar Nevarez did a great, thorough job inspecting & cleaning my Trane furnace today. He was quick, efficient and pleasant to deal with.

recently had a fantastic experience with McNally Heating and Cooling Company. Their technician, Charles, came to clean the vents in my home and did an outstanding job. He was professional, thorough, and very knowledgeable. Charles not only ensured that the vents were spotless but also provided me with some excellent tips on maintaining my HVAC system. I highly recommend McNally Heating and Cooling for their top-notch service and expertise. Thank you, Charles, for your exceptional work! read more

McNally's Heating and Cooling - Excellent service from technician Charles today . - Heating & Air Conditioning/HVAC Near Me - Saint Charles, Illinois

Our AC suddenly stopped supplying cool air and Dan came promptly, found the issue right away (the breaker had corroded, cutting off electrical supply), made a trip to the distribution center, and got the AC running again. It was a God send we are so relieved to have it again (and so soon). their rates were also lower than others. highly recommend. read more

Summer... the Worst time for an A/C to go out. Our Air conditioner went out because our dog decided it was his favorite pee spot! Jeff and Manny showed up like heros in a white and green van to save the day!! They moved the a/c out of the dogs bathroom range to prevent him from ruining the new one. Overall experience was amazing. They were courteous, polite, communicative and had a great sense of humor too! They worked hard in the heat and went above and beyond! Thanks guys. Even tho the dog is mad you took away his bathroom, we are forever grateful for the cold air you And comfort you put into our home! read more

McNally's Heating and Cooling - Moved our A/C to the side of the house - Heating & Air Conditioning/HVAC Near Me - Saint Charles, Illinois

See all

Had service for my ac unit done today from McNally . Tony was the technician who did the service. He was very helpful and friendly and noticed a problem with our furnace while he was here. Very happy with McNally and with Tony for his excellent service.definitely will highly recommend! read more

Needed a new furnace and A/C for a very,very old house. Complicated job, had several companies out to bid. Russ with McNally's provided the most complete answers, presented several options to solve my issues and was by far the most experienced and knowledgeable. Next came the installation team, on time and ready to do the job. Jeff and his crew were great, walked me through everything they were doing, worked efficiently and cleaned up. Mark from Jeff's crew even took one for the team and crawled through a dirt crawl space to wire the heat pump. Jeff showed me everything they had done (sheet metal work and venting pipes were super well done) and Jeff taught my wife and I how to use the new control pad, serious upgrade from my former Nest) McNally's also handled submitting all the rebate forms for me, so everything was very easy. Knowledgeable team, competitive pricing, great set up. At the very least, include McNally's in your list of options, they will easily be your best choice. read more

Just hired them clean to my air ducts. We requested to have our dryer vents cleaned. The service person stated that he couldn't do it because of the vent being on the roof with snow--that's understandable. However, he did say he'd pull the dryer from the wall and at least get some of the packed-in lint. He didn't do this. Pretty pissed off because we have a fire hazard and it was the whole reason we booked the service. not cool. Also, they are a bit pricer than I have seen elsewhere. 333.00 for just the air ducts and I believe the dryer vent would have been around 200.00--very expensive, read more

Excellent Company! I've used McNallys 3 years now and they are always fast, knowledgable and they are not trying to upsell. I've used another popular one which was more expensive in the past. Eddie is an amazing manager too!! Thank you! Kathryn Q. Stc read more

New Years Eve 5pm my furnace stops working. I called the company that sold me the system and has been doing regular maintenance for several years. A huge, national company has only one local service tech, he can come Thursday afternoon. 4 days with no heat? So I had heard that people were pretty happy with McNally's and I called them. Cory called me back in an hour to say he was on his way. He couldn't have been nicer, even remembered being here when he worked for my (now former) heating contractor. The problem was a failed circuit board, and Cory had a replacement on his truck. The replacement part was expensive, but three hours later, my house is toasty warm. I wouldn't hesitate to recommend McNally's to any of my friends or neighbors! read more

I submitted an online inquiry on their website Sunday night and a nice lady called me back first thing Monday morning - she got me scheduled to have someone from their company, Jimmy, come out mid-day to look at our AC unit that wasn't cooling our home effectively. He arrived early and fixed the issue within an hour with a price that seemed reasonable. It's back to working normally! He also wore booties over his shoes while in our house which was very courteous. We were able to pay by card and get an emailed receipt and summary right away which was nice. Jimmy was very personable. They also have maintenance plans if needed. read more

We had an 8:00 AM appointment to have a hot water heater installed. However, Mcnally's never showed up. After Mcnally's was over 38 minutes late we could Not wait any later. We cancelled our appointment. After Mcnally's failed to show up at the appointment time. read more

Excellent service and quick response. The team did a great job with new furnace install.

Great service. Had an issue with my AC unit's fan not spinning and tech knew right away what the issue was. Checked the capacitor to verify it wasn't working and swapped it out. It was nice that he was explaining what he was doing and why he was doing it! Pricing was great overall too read more

So our ac went out, ABC came diagnosed and said it would be $900. That seemed ridiculous so I called McNallys all in with service call $330 Fair and honest company is a rarity these days. There are my go to from now on! read more

Absolutely awesome service. Extremely thorough and will explain everything in detail so that you are well informed. Estaban is amazing and takes extra care to make sure everything is running smoothly. I just had my ducts cleaned and was again extremely impressed with their service and care. Extremely recommended. Top notch service and work read more

McNally's replaced our air conditioner and furnance yesterday. They did a great job! On time, clean, friendly, finished early and asked if we had any pets. Since we have a bird, they asked that we remove him at the end for a short while. How caring . We highly recommend them! read more

McNally's is Great! My AC went down and they were out quickly, and were very professional, prepared and efficient. I highly recommend them! We've been using them for years! read more

When you need 24/7 heating and cooling stop scrolling and pick these guys. I called them Super bowl Sunday (2nd quarter) my heat went out. Called them and they picked up on the second ring. Took all my information, asked details and got me in touch with someone with someone who could help (John McNally). I had to call him back, I ended up figuring it out and didn't use their service. This guy calls me back to follow up and to make sure everything was okay. If that isn't good customer service idk what is. Customer Support this amazing, pick these guys. Cheers to good people read more

I moved into a 20 year old home that had the original furnace and air conditioner. I did my research in looking for a heating and cooling company, and McNally's's was highly recommended from a number of the people who used their service. I have been nothing but extremely impressed from when I was contacted by their sales people through the installation, and finally the cleaning of the air ducts. I highly recommend this company for any heating and cooling needs you that have. read more

Our Ac has been a challenge since we moved into the house 2 years ago. We were able to stretch it along, but finally became impossible to maintain. The furnace was original (23 years old), so decided to do the entire thing and replace the furnace and AC. First had a quote from another company. A lot of issues with them that I don't need to go into, but I was worried this was what replacing a furnace/ac entailed and was bunkering down for a long process. The next day, in came Russ from McNally's. Professional, knowledgeable, and not really too aggressive. He made the other company look like amateurs! He was even able to explain how a furnace/AC works with a basic drawing as he explained it, and my wife was able to learn more in that 5 minutes than I was able to teach her over 2 years! Not only was he not scummy/sleazy like the other company, the price was fair and sounded like a good deal; even throwing in a few odds and ends (I'm sure it wasn't because I am so amazing, but was still the better deal at the end of the day). He had me sold on McNally's before even showing me the product or the price. He explained all the paperwork and was flexible with setting the install up (even with being super busy already this year, he was able to fit us in reasonably)! He even explained some of the tricks other companies use to make you think they have a better deal (and recognized some from the company the day before, before I had even told him who I had priced from so far). I felt really comfortable choosing McNallys, and Russ, more my replacement unit. If I can't say enough about Russ, in walk Tyler and Pete. The installers immediately stood out, being professional and explaining the days activities. They used tarps to protect the floors inside, and were mindful of walls. I felt they got the work done in a relatively timed manner. They explained things as they went, and why and how they were doing things. Clearly they were experienced and knowledgeable. The kind of experience you can tell there is no BS; something people can't fake when they don't know their trade. They worked well together and could tell had a lot of time as partners. I've had a few people in that line of business look at their work, and nothing but compliments of the level of work, and the cleanliness and care they took. Spending that kind of money to replace something you rely on all year long, I am very content knowing my family will be comfortable and safe all year round! I'm the kind of guy that prefers to usually handle his own maintenance and upkeep, however, after seeing the level of care and commitment these gentlemen had with their work, I will be using McNallys for all my Hvac needs from now on! Great work to all, and thanks again for all your help! read more

McNally's Heating and Cooling - New furnace installed. - Heating & Air Conditioning/HVAC Near Me - Saint Charles, Illinois

I'm very happy with the sales rep Jeff & service I got from McNally's Heating & Cooling Service Tech guys: Pete, Tyler & Kyle. They replaced my 21 years old furnace and AC unit and replace it with a Lennox Signature-Line Ultra High-Efficiency units. Never seen an entire HVAC system installed so quickly. Very Professional and Clean work. Didn't leave anything half done. Highly recommended and very reasonable in pricing. 5 Stars. Loving the Lennox iComfort Ultra Smart Thermostat (it's like having a mini iPad on the wall) over the Ecobee3. read more

See all

I purchased a second zone for our attic. The process started at Costco and Russ (the sales person) called almost immediately. From the time I spoke to them at Costco through the entire installation process, everyone was professional and high quality. I received everything quoted and then some. I would highly recommend McNally's! read more

On one of the hottest days most recently I returned home from work air conditioning was not working house was very warm I could tell as soon as I walked in because my timer would have kicked in and I would feel some cooling. I called McNally and a young "genius" named Kyle who was on call after hours came after he finished with some other urgent calls. He immediately got to work and reset some things in furnace. Cause was likely due to power outage that day. MCNALLY IN STC. What a company & what an awesome employee Kyle. Fair price to have my air conditioning back up on a super hot day with more pouring rain that night. McNally has been my hvac company for my annual check ups with furnace & central air unit and I'll continue to recommend them. read more

AC went out in the am. Jim was at our house by 1pm and quickly diagnosed and fix the problem. Let me know what he was going to replace and no pressure to do anything else. Great tech! read more

While doing the research for reasonable furnaces, we came across McNally's and after reading all of their positive reviews, we were really impressed and scheduled a consultation. Russ came out for a complimentary consultation and even though we had a set price in mind, after comparing different furnaces, we decided on the Lennox iComfort. Russ made us feel entirely at ease, he was very knowledgeable about the product and did a thorough job explaining the functions of the furnace as well as explaining the installation process. Russ also offered us incredible rebates which further sealed the deal. On the promised installation date, Ed and Ryan promptly arrived and did an excellent job installing our furnace. We are very happy with the McNally team and their professionalism. read more

If you want a quality company who believe in good service, then this is the company to call for your heating and cooling needs. Two young men, very nice and polite, arrived on time and let me know they were on their way, came to clean out the dryer vent and even replaced the hose for free! No upsell and they even cleaned up afterwards and wore shoe covers. I couldn't be more impressed with this company and will definitely recommend them to family, friends and neighbors. I will be calling them again! read more

Professional, honest and excellent work. Max was my service technician. McNally's will be my go to from now on.

This company is exceptional. I had a problem with my furnace on a Friday afternoon and they sent someone right out after hours. The technician, Jim Young, was knowledgeable, thorough, and professional. He explained everything to me in detail. His demeanor was straightforward and honest. What seemed like a big problem turned out to be pretty small and relatively inexpensive. My furnace is now running beautifully and I'm a happy customer. read more

We had McNally's come out for a preventative maintenance call on our furnace last week. We were serviced by a young guy named Max. Extremely pleasant and efficient; in and out in a short time. Took Covid safety rules seriously and gave us a nice complete overview on our equipment. We were very pleased and would happily recommend McNally's read more

McNally's personnel treat their customers like they themselves would like to be treated. Clear communication. Pricing up front. Explanation of services performed. Date of service left on McNally's sticker on unit for homeowner reference. Our experience with Esteban was brilliant. 100% will call McNally's HVAC again. read more

Our AC unit would not turn on and was able to get a service call out within a couple hours. Jimmy checked out the unit and quickly diagnosed a blown capacitor. Replaced the part and got it running again. Cleaned up the unit and area after. Used my coupon and got $35 off the call. Well worth it. Great technician and service! Would recommend and use again. read more

I had McNally's do some work back when they were starting off. The level of work, competency, customer service and price back then were great. Fast forward to recently. I had a McNally's technician come out. He was doing some work on the furnace and I wanted to observe. He clearly didn't want to be watched, and made a snide comment. I felt it was totally unprofessional and rude (especially considering I'm paying for the service). They replaced a capacitor that can be had for $9 online and charged over $150 for it and it took 2 minutes to replace it. At the end of the day a company that charges fairly for inexpensive parts (2x or 3x but not 10X!) and service, and doesn't make a homeowner feel guilty for observing (not interfering) with a contractors work, will go far. McNally's needs to do a better job on training their "best" technican on what to and what not to do while interacting with a homeowner. There's more to customer service than merely fixing the problem. read more