During a recent 90 plus degree heatwave, our AC went out and we were in need of assistance. We…read morecalled Herchenbach and their response was immediate. Brian D. was our technician, and he was professional, knowledgeable, and very kind. We were very pleased with the service and will not hesitate to use Herchenbach for future HVAC needs.

Highly recommend Herchenbach Mechanical for your HVAC needs in Lake County. They are family owned…read moreand operated. A few years ago, my old AC from the 1990s was in need to be replaced. I decided to go with Herchenbach Mechanical after comparing a couple other places in the area. Scheduling an appointment was easy. Curtis and his team came over and installed the AC unit fairly quickly. They were very professional and courteous. Fast forward to a few days ago, my kid decided to throw pieces of chalk down the pipes. I called Herchenbach Mechanical to schedule a time and date that works for me. They will email and text you to confirm your appointment. On the day of your appointment, they will also send you a photo of the technician that will be over. Adam, the technician, was very friendly, knowledgeable, respectful and on time. I told him what happened and he explained what he would need to do to get the chalk out from the pipes. I also scheduled them to clean my AC as well. After Adam finished using the hose from the backyard, everything was neatly put back the way it was. He didn't leave anything out or left a mess. When he was inside the house, he would immediately put on those disposable shoe covers without me having to ask. Herchenbach Mechanical has always provided great, friendly service when I needed them. I have nothing but good things to say about Curtis and his team. Again, highly recommend them! You won't be disappointed.

I am extremely disappointed with my experience with this HVAC company…read more I originally called them because I was having an issue with my outdoor HVAC unit. After looking at it, they told me the unit was bad and needed to be replaced. I trusted their recommendation and paid over $3,000 for the replacement/repair. The work was done quickly, and the system worked fine for about a year. This season, the outdoor unit stopped turning on. I had another HVAC technician inspect it, and he told me the issue was caused by a hole left in the welding during the installation, which allowed the Freon to slowly leak out over time. Because the Freon was completely gone, the repair is now much more expensive. To be sure, I had a second technician inspect it as well, and he gave me the same explanation. I reached out to this company to discuss the issue. They answered my first call, but after that, my repeated calls and emails have gone unanswered. That is extremely frustrating, especially when the problem appears to be related to the installation work they performed. My sincere advice is to be very careful before hiring this company. In my experience, they did not stand behind their work or properly respond when I needed help after the job was done. I am very disappointed with the quality of the installation and the lack of customer service afterward.

Outstanding service and outstanding crew! I went through 5 contractors to replace my furnace and I…read moream so happy I chose this team! Better Climate Zone you all are a great team to work with and I look forward to doing business with you in the future. I also plan to share your contact info. with family, friends, and co-workers

I Love O'Brien! They're professional, honest, and trustworthy! I started using them when Gary was…read morethe owner. They have kept up their exemplary customer satisfaction, true to the O'Brien name! I wouldn't use anyone else!

Had no a/c so called for service. they were here by 10. Fixed by10:30 and incredibly reason…read moreable. I will always use them.

Francisco did an excellent job and the price was very reasonable. I would highly recommend Blue…read moreHeating & Cooling to anyone.

FrancIsco and his brother did a fantastic job I highly…read morerecommend them for anyone needing Heatping and Cooling very professional and knowledgeable

Great company, they have now replaced my furnace and AC unit. The company is quick and all…read moreemployees are very nice.

Prompt response and arrival , fixed issue by replacing capacitor. Local business, Highly recommendedread more

I called not long ago to request a quote, but I was hung up on. I assumed it was a mistake, so I…read morecalled back. The call was answered, but no one spoke on the other end. Is this how you treat potential clients? This experience has been very disappointing. It was a man who answered btw. LOL! Very poor customer service!

Fantastic parts store!! Always have everything you would need. Employees are very knowledgeable…read moreand quick to answer any questions and solve problems. Prices are very good. If you need something they should be your first stop or call!!!!

Well, my air conditioning stopped working, and now it's working. The serviceman was very polite and…read morefriendly. Everything is good.

Needed AC repair. Vernon Hills Heating and Cooling was recommended by my brother in law. Couldn't…read morehave been happier with the service. Expected a big bill but it was less than I expected!

Mr. Duct sent Miguel out to clean our ducts. He did a great job. For those looking at duct cleaning…read moreservices, you should look for National Air Duct Cleaners Association (NADCA) certified shops. You should also shop around because some places offer bonus services that you may or may not need, or may even be hazardous to the occupants of the home, like sealants or chemicals. Check the EPA page on "Should You Have the Air Ducts in Your Home Cleaned?" for a thorough treatment of the topic, though note that it's much less enthusiastic about duct cleaning than people's subjective experiences, especially people with allergies or sensitivities, or if you've just done a remodel. I'd refer to "Is it worth it to get your air ducts cleaned?" on r/homeowners and "Is air duct cleaning a scam?" on r/hvacadvice. With that out of the way, Miguel cleaned our ducts quite thoroughly. He inserted the vacuum to the air handling unit. This would provide the negative pressure to ensure most of the dust and debris would go to the vacuum. Then he use a air compressor to knock loose the dust at each register and as far into the ventilation as he could push the nozzle. My registers unfortunately went up towards the attic, so dust was guaranteed to get knocked loose into the room, so we had to vacuum. This would have gone smoother if Mr. Duct had sent a partner with Miguel. Miguel was also very helpful in airdropping the photos of the ducts to my phone, which was important because we were trying to identify what might be triggering allergic reactions. For roughly $300, it was very reasonable. I would recommend Mr. Duct to those who need duct cleaning services.

I recommend this company, they were able to fit me in the same day service at a great price! The…read moregentleman that did my air ducks and dryer vent was okay, a little bit careless and worked rushed. I wish he would've been more careful and taken his time he would have better work quality. He broke my ring holder while moving furniture around (I got credited back) and left residue of the dust behind. Price was good, I would hire them again but not have the same gentleman do the project.

This company is great! I use them at my office every time we have an issue with A/C. They are quick…read moreto respond to ER issues, even non-ER issues! Office staff is very friendly. Every technician I've met is also friendly, tells you everything they found wrong and replaced. Also will give you suggestions on what should be done, and will never try and upsell you on anything you don't need.

Steven and all his guys were excellent as they replaced our furnace and cleaned our filthy hvac…read moresystem after a major remodeling job. The were immaculate, and worked hard over the two days they were here. The price was fair too. Can't recommend them highly enough.