🎯 On the Mark Heating & Air is here whenever you need help with your heating, air conditioning, or indoor air quality in Hoffman Estates, Schaumburg, or the surrounding areas.
When you call us, we’ll get to you fast, give you a straightforward evaluation of your HVAC system, then get you the solutions you need ASAP!
Our customers love us because we:
➡️ Value honesty, integrity & treat our customers like family
➡️ Have highly-trained, NATE-certified & friendly technicians
➡️ Offer flexible financing options & upfront pricing
➡️ Have extended warranties & guarantees
➡️ Are community-centered, supporting various non-profits
📞 Call us today for expert HVAC service!
Location
Certified by On The Mark Heating and Air • May 17, 2026
Certified by On The Mark Heating and Air • May 17, 2026
MondayOpen 24 hours
TuesdayOpen 24 hours
WednesdayOpen 24 hours
ThursdayOpen 24 hours
FridayOpen 24 hours
SaturdayOpen 24 hours
SundayOpen 24 hours
Reviews
5.0
988 reviews
5 stars
976
4 stars6
3 stars2
2 stars0
1 star4
JB
Julia Berg
1 day ago
5.0
We used On The Mark after another company came to service our A/C units and were told there was an issue that would cost $1,500+ dollars. My intuition was telling me we needed a second opinion. Chris came and quickly diagnosed the problem as something else that was much less expensive and was able to fix it right then. We also found out our heat exchangers were cracked on three of our 15 year old furnaces, so we chose to replace them. On The Mark gave us the best price out of a couple companies we received an estimate from. Jeff Martin and his team did a great job installing our furnaces as well as four humidifiers over two days. They were professional, gracious, and most importantly installed our new furnaces in a way that will keep them running well for many years to come. They even took a large bag of trash that our gutter cleaners left behind. I really appreciated that extra kindness. We will be using On The Mark for our future HVAC needs.
KS
Kayla Scinto
1 day ago
5.0
Okay, I have to talk about James for a minute. We knew we needed a new AC unit, and honestly we were dreading the whole process. Then James showed up and made it genuinely easy. No pressure, no upsell-y vibes, just real talk that helped us make a smart decision for our family.
Here’s what really got me though. My two-year-old was running around like a tiny tornado the entire time. Most people would lose their train of thought or rush through the pitch just to escape. Not James. He stayed locked in, built a quote around what we actually needed, and explained everything so clearly that even with all the chaos, I got pulled back in twice because I was that impressed.
You can just tell he cares. If you’re thinking about calling On the Mark, do yourself a favor and ask for James. Wish I could leave more than five stars.
CW
Christine Wozniak
May 13, 2026
5.0
5 stars all around! From the first phone call to the completed service, this company was amazing to work with. Stephanie was incredibly kind, helpful, and attentive throughout the entire process. She answered all my questions quickly and made everything so easy and stress-free.
The technicians were professional, on time, and very knowledgeable. You can tell this company genuinely cares about their customers and takes pride in their work. Highly recommend if you’re looking for honest, reliable heating and cooling service!
NM
Nisha M.
May 8, 2026
5.0
I couldn’t be happier with the service I received! From start to finish, the entire process was very professional. James and Jeff did an excellent and very thorough job.
It’s hard to find companies that are reliable, honest, and genuinely care about customer satisfaction, but this team absolutely delivered. I would highly recommend them to anyone needing HVAC work. Excellent experience all around!
MF
Michelle Farrar
May 8, 2026
5.0
Update to my already 5 Star Review. The installation crew came to my house this morning and I was wowed once again! They were the nicest guys, wore shoe covers, laid down tarps, explained everything, inspected everything and fixed or replaced anything that needed to be fixed or replaced. They cleaned up after themselves!! They were fun, friendly, knowledgeable and just made the whole thing a great experience!! They let my dog love them too!!! Jeff, Joe and Cory were amazing and should be acknowledged for setting a great customer service experience!!
I can’t say enough great things about this company. James came out to my house and was so friendly and knowledgeable!! He is not your typical salesman. He will go above and beyond to help you get a great deal! I am the president of my HOA and have already shared his information with my 300+ homeowners. This company is the only place you should do business with. They are transparent and honest. James is now a friend too!!
Frequently Asked Questions About On The Mark Heating and Air
What services does On The Mark Heating and Air provide?
On The Mark Heating and Air offers heating, air conditioning, and indoor air quality services, including HVAC evaluations and solutions in Hoffman Estates and surrounding areas.
Where is On The Mark Heating and Air located?
It is located at 2200 Stonington Ave, Unit 110, Hoffman Estates, IL 60169.
What are the business hours of On The Mark Heating and Air?
They are open 24 hours a day, 7 days a week, offering around-the-clock service.
How quickly does On The Mark Heating and Air respond to service calls?
They prioritize fast service by providing a prompt evaluation of your HVAC system and delivering solutions as soon as possible.
Does On The Mark Heating and Air offer financing options?
Yes, they offer flexible financing options and upfront pricing to suit customers' needs.
What certifications do the technicians at On The Mark Heating and Air have?
Their technicians are highly trained and NATE-certified, ensuring expert service.
How can I contact On The Mark Heating and Air?
You can call them at +1 847-973-5851 or visit their website at https://onthemarkhvac.com/.
What are some nearby services near On The Mark Heating and Air?
Nearby you can find Trusted Homes Solutions for home services, Abesco Inc. for appliance repair and electronics, and Golden Knots Rug Cleaning for carpet and home cleaning services.
Are there any event photography services near On The Mark Heating and Air?
Yes, Ranka Photography, Angel Michelle Photography, Maureen T. Miller Photography, and The Studio100 provide professional and event photography services nearby.
Which nearby places could help customers visiting On The Mark Heating and Air with insurance or home security?
Customers can visit Amanda Delong - American Family Insurance Agent for health insurance or Euthenics Inc for home security and IT services nearby.
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