Best Heating & Air Conditioning / HVAC In Mchenry

“Jordon was excellent. Diagnosed our plumbing problems and gave us several options to fix. Would do business again with Black Diamond.“

“Great customer service!!!
The technician Shawn was very knowledgeable and explained everything as he went through the process of repairing our AC unit after the storm on July 3 2026.
Thank You to the Jett’s Team“

“McHenry Heating and Air has been my first choice HVAC and Plumbing for my home and rental properties. I tried many in the area before them and they are the best and have been using them for last several years. Recently had an HVAC emergency call at 10 pm and technician worked until 2 am to get the furnace going. Service calls and installations have always been affordable and they can't be beat with how they back up what they do. Same for the plumbing side of the business which I also call them for (wish plumbing had weekend hours but you can't have everything).“

“Awesome, awesome experience! Came out quickly and fixed our AC on the hottest day so far. Eric, the tech, was professional and kind! Highly recommend this business!“

“Met owner. Very nice person. Loud Brothers were highly recommended! Poor Richard of the Town Planner“

“I couldn't be more pleased with my experience with Combined Services. From the moment I called, their customer service was outstanding—friendly, professional, and quick to respond. The technician arrived on time, was incredibly knowledgeable, and took the time to explain everything in a way that I could understand. They diagnosed the issue with my AC unit quickly and had it up and running again in no time. What really impressed me was their honesty—no upselling or unnecessary repairs, just straightforward, quality service at a fair price. It's clear that they care about their customers and take pride in their work. I highly recommend Combined Services to anyone looking for reliable and trustworthy heating and cooling services. I’ll definitely be calling them again for future maintenance!

ALSO… do yourself a favor and talk with Ken!! I had the pleasure of working with Ken, the owner, and I can’t say enough great things about him. From start to finish, he was professional, knowledgeable, and genuinely cared about getting the job done right.“

“We always have a great experience with Gotsch! They are very professional and reliable, and they do a great job. They just installed a new heating/cooling system for us, and the entire job process went smoothly.“

“Top quality service & Honest! They came out diagnosed my furnace issue in short time. Luckily it was only a fuse which was a cheap fix. Nice to see there are still honest people out there. I was expecting a lot worse. HIGHLY RECOMMENDED!!Service: Heating system repair“

“Provided great service on my furnace and ducts. We’re able to identify and repair the broken part in the same day without charging a fortune. Would definitely recommend to friends and family!Service: HVAC system maintenance“

“This company did an outstanding job with the installation of our furnace! Their technicians were friendly, knowledgeable and hard-working—they even finished the job an hour earlier than expected.“