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On the Mark Heating & Air
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  • 847-716-2157
  • Five Star Guarantee
  • Year Established: 2008
  • Family Owned & Operated
  • Financing Available
  • Free Estimates
  • Employees Drive Marked Vehicles
"You deserve to live in a safe, comfortable home. When you partner with On the Mark Heating & Air, we will ensure your home is safe and comfortable while providing fair pricing, high-quality workmanship, the latest technologies, licensed technicians, and friendly customer service. We look forward to working with you to find the best and most comfortable solutions for you and your family."

Mark Portuese, Owner
Principal Owners / Key Managers
Mark Portuese, Owner
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Homeowner Reviews

“I highly doubt we will be calling anyone else for our future needs. As a corporate trainer by profession, I can say with full confidence these guys are top-notch with their customer experience.”

“The gentleman was knowledgeable and very professional. I highly recommend On the Mark for all your HVAC needs and services.”

  • 847-716-2157
  • Five Star Guarantee
  • Year Established: 2008
  • Family Owned & Operated
  • Financing Available
  • Free Estimates
  • Employees Drive Marked Vehicles
"You deserve to live in a safe, comfortable home. When you partner with On the Mark Heating & Air, we will ensure your home is safe and comfortable while providing fair pricing, high-quality workmanship, the latest technologies, licensed technicians, and friendly customer service. We look forward to working with you to find the best and most comfortable solutions for you and your family."

Mark Portuese, Owner
Principal Owners / Key Managers
Mark Portuese, Owner
Services Offered
Heat pump installation, repair, and maintenance
Air conditioner installation, repair, and maintenance
Gas furnace installation, repair, and maintenance
Indoor air quality services, products, and testing
Thermostat repair and installation
Ductwork repair and installation
Maintenance plans offered
Financing available
Free estimates on new equipment
We do not service boilers or refrigeration units.
Insurance
General Liability & Workers' Compensation
Warranties / Guarantees
Honest and upfront pricing
Customer satisfaction guarantee
Recognitions
360+ 5-star reviews
North American Technician Excellence (NATE) certified technicians