This company is GREAT! After another company replaced my furnace and messed it up by miss matching…read morethe plenum size and furnace I got McHenry to do it. The other furnace was crap and only lasted a year before the blower failed (because of the pressure miss match caused by the plenum mismatch). They replaced the furnace with a good one, AND got it up off the floor like it SHOULD have been. In addition to correcting the plenum, they put a NEW and correct filter housing on it. That doesn't seem like a big thing except the prior company had some dummy install a filter housing with the screws facing IN to the slot where the filter sits making it a real pain to replace. So ya, I definitely recommend them.

Outstanding Customer Service every one works with you. Day of job Alex and Jeff were fabulous…read more They let me watch them work I've always been fascinated with how things work. Mid Oct 2024 they moved my 3ton A/C unit over and further from house making it easier for me to keep clean. It's taken me some time to write this review as I'm still recovering from surgery. Come Spring or Fall I'm planning to renew my maintenance contract. They come out twice a year to check HVAC and clean everything up. Again outstanding Customer Service every one works with you. END RESULT very happy customer. Highly recommended!!!

I got a prompt response to my request with a quote for diagnostic, which would be waived if I…read moreproceeded with the repair. They do provide the service requested and gave me a link to make an appointment. We'll see how things go in a couple of days. The repair man, Alex, was prompt and identified the problem - two problems, actually. He was able to get the dryer running again, better than it had been. Reasonable price

I read the Yelp reviews for Astera before I reached out to them, and the 5-star reviews are spot…read moreon! I sent a message via Yelp on a Sunday night and they immediately scheduled our oven troubleshooting for Monday afternoon. Their front office staff is incredibly responsive! George (technician) arrived timely and was very thorough. He explained things to me every step of the way. He is approaching this very methodically - ok, so it's not the igniter, let's look at the next link in the chain... I saw George called out by name in other Yelp reviews, and I understand why he comes so highly recommended! He called the manufacturer to discuss his findings, but the manufacturer tech team wasn't available. He let me know he would be calling them again in the morning and that he would reach out to me with an update. I've had plenty of negative or so-so experiences with other service technicians from other companies. This experience with George / Astera is so positive that I'm posting my review even before the service is completed. Astera will be getting first crack at all of my appliance and HVAC service calls going forward.

I went to my basement to put some clothes in the washing machine and found water on the floor with…read morea spray of water coming from a pipe. I called Black Diamond and they understood the emergency and shortly their plumber arrived. Michael H was polite, efficient, and a born educator. He replaced the spouting pipe with a copper one (I was delighted with that) and answered questions I had about the temperature of the new water heater I had had installed in September (not by Black Diamond). He reset the temperature on the water heater (it was scalding hot the moment I turned on the tap). I told him about a different issue I was having and he explained the problem, but said he could not correct it at this time since he had another call. I told him I would call the Diamond again to have that handled. Michael was a wonderful representative for Black Diamond and I would hope to have him respond when I call next week. People had told me for years that Black Diamond was VERY expensive so I had avoided calling them. I want to go on record saying that the company is more reasonable than several of the other companies with which I have done business in the past Black Diamond is not only more reasonable but they finish the job correctly (unlike one company whose representative reversed the hot and cold taps in the shower). Thanks Michael H and Black Diamond! I look forward to making an appointment next week.

Great plumbers great job on my piping loved every bit of the experience! Scooter broke while they…read morewere here and we all had a good laugh at it

I'm a Realtor and I was looking for a professional in the area of a home I had listed. I had…read morereached out to 4 companies and Benny's was the most reasonable and responsive. They were even able to review the home information I sent in advance and meet me the next morning to service both the furnace and hot water heater. When they arrived they got straight to work and were super professional and thorough. They even replaced the batteries in the thermostat for no charge when they saw it was low. For as much as I could want/need from an HVAC company, they were it! Knowledgeable, honest, and cost-effective. I will 1000% contact them in the future - AND YOU SHOULD TOO!

Highly recommend. Fair prices and fast service! They responded immediately and fixed only what…read moreneeded fixing on my furnace. We were back up and running in about an hour. Thanks Benny's, keep up the good work!

I have had Astera do multiple small projects for me since moving in to the area…read more Most recently I had them out to repair my dryer. They were on-time. They provided good advice on whether/when I should consider replacing the dryer. They did the repairs, did a thorough cleaning (cleaning the ducts is important) and left me with my dryer in perfect running order. They have done a good and thorough job for me three times now. I will continue to call on them and to recommend them.

Everything was fantastic and Roman was great! I would recommend them to anyone. they were on time…read moreand were very helpful in answering all questions and demonstrating the device. The quality was very high as well as the value.

Erik will go above and beyond for his customers A true…read moreprofessional. The value is phenomenal I used him to repair my old furnace quite a bit and he installed a new one for me on 12/19/25 for a great price. He also cleaned everything up and followed up with me a few hours later.

10 stars if I could. Eric came out after I got the run around by every other hvac company. He gave…read moreme a quote to do the repairs on my AC which was very reasonable pricing. Came out the next day and did the work, he even had to do a little extra that wasn't forseen but didnt charge me more. cost was exactly as quoted. very nice guy who knows his hvac. highly recommended. will be using this company every time going forward.

Our go to HVAC company, they always come during the time they give, we've used them for years and…read morenever steered us in the wrong direction. They do our annual inspections and any maintenance needed. Pricing is always fair for the work being done.

Tech stopped out to give us a reasonable quote. It was our third quote. After that visit and a…read moregood phone conversation with the owner we signed the contract for a full replacement of our 24 year old system. The install crew had the same tech and they ran into some minor spacing issues, but got it all done in six hours. It's been over a month since the work and the system works great. When looking to get some HVAC work keep it local. Good people here and a good experience.

On July 20, 2022, I purchased and closed on a Newly Built Home from the Dr. Horton Builder…read more The Carrier HVAC Unit was installed by Combined Services HVAC. In December of 2022, the HVAC unit Malfunctioned, and the Heater stopped working. Since this was a Brand New Home and Combined Services HVAC installed this unit - Andrew from Combined Services was sent to my home and was able to get the heat going. In July of 2024, Combined Services installed a Reme Halo System but failed to install the transformer (I have the original box this system came in and noticed the transformer is still in this original box - purchased from Combined Services). In December of 2024, this Unit Malfunctioned for the 2nd time, the technician from Combined Service informed me there is a broken part on this unit - and they need to order and install the missing part - an "inducer cooling wheel." This system also made large noises and the air distribution is completely unbalanced. I no longer hear the noises, but the air distribution is still extremely poor - the Primary Bedroom & Bathroom receive most of the air and or heat even though the vents are closed.

This is one of those rare reviews that is split into two. To start off with, this is NOT about the…read moretechnicians. This is about the sales people, specifically about one. I've used Combined before and I have to say the techs that came out were spot on, professional and courteous. This is about the behavior or lack thereof of customer service of a certain salesman. I called three weeks before to schedule an appointment, this was on a Friday (May 9, 2025). The receptionist took me number and said the salesman is out but would call back ASAP and even on a Saturday if he could. I thought wow, that's service. Boy was I wrong. Three weeks went by without a telephone call from a salesperson. During the fourth week, from that Friday on Wednesday ( May 28, 2025) of the fourth week, I called Combined again and she transferred me to the salesman who happened to be in. I asked him why he didn't call back and his response was " I have your info right here, I meant to call Back" that was a red flag but I decided to ignore his comment. We set up his visit for that Friday ( May 30, 2025) two days from Wednesday's call, for 3 O'Clock. Come Friday 3 O'clock, no show. 3:30, 3:45 no show, no call. I call Combined to find out what happened and they transfer me to the sales desk. His buddy picks up the phone and tells me that my salesman is in but in the toilet so he put me on hold. This "sales guy" answers the phone while in the background I hear him buckling his belt, WTF I'm thinking to myself? I ask him why he wasn't here for the appointment and he says that he was coming after 3. What? I ask him what does that mean after 3? Could he give me a time estimate and he raised his voice and said " I said after 3" I was stunned, I took time off, had a medical emergency with my dog, and this fool's response was after 3 while buckling his pants. I got agitated and wanted a normal response of an actual time and he responded "you are getting off on the wrong foot with me" ,I'm thinking to myself, who does this guy think he is, I',m the customer and he's talking to me like I was a child? He's representing a company, talking and raising his voice to a customer and not even allowing me to say anything constantly interrupting me and trying to talk over me. Before I could ask for another salesperson he said something nasty and rude and slammed the phone down on me. I was shocked!! I guess I interrupted his day and he didn't need my business nor my subdivision's, my recommendation to the HOA board and to my neighbors is ZERO. I guess the company has no controls as it shamelessly allows their representatives/salespeople to abuse and talk back to customers. I recommend the company hire some professional real salespeople that know how to talk to customers without insulting them. In the mean time I guess they really don't care about making money they must have too much of it.

Keith and his team are always professional. We've been using them for PM services on our furnace…read moreand air conditioners for almost ten years. They're honest and reliable. I wouldn't hesitate to schedule with them.

I had them clean my dryer vent because our dryer wasn't working well. Originally they said they…read moretried to clean it out best they could but there was a hard block that was preventing him from getting it all the way clean so they needed a camera to scope out what was the blockage. This would also require another camera charge. I was fine with it because I wanted a working dryer. Turns out, the thing blocking the the vent was just lint and when they found that out they were apologetic and made sure to get the job done right this time with no extra charge. I can say that nobody is perfect but you can count on this business to make it right if they make any mistakes!

Very honest and knowledgeable. I luckily found Dan after having a new furnace/Ac incorrectly…read moreinstalled by a different company. That company would not come fix their poor installation and I was left with the only option of hiring a different hvac company. Dan kept me completely informed as to what he was doing and why. All the work was performed with quality in mind and he was a true professional. He measured my airflow etc to optimize my new system. He correctly sized my intake/exhaust on my furnace while doing several other fixes as well. My system now operates efficiently and quietly. Thank you very much Dan!

From the owner: Don't hesitate to call Dan's HVAC in McHenry, IL. We are committed to your satisfaction. Call us…read moretoday.