When homeowners start thinking about replacing their HVAC system, the conversation often centers around the leading brands in the industry and which logo to trust the most. A good HVAC brand is important in terms of quality, but it’s rarely the reason a home feels comfortable or uncomfortable. In a recent Home Answers Radio conversation … [Read More]

When our own Mark Portuese from On the Mark Heating & Air sat down with Home Answers Radio, the conversation immediately shifted from sales talk into the no-nonsense, practical advice that homeowners need. Host Roger Piper kicked off the interview with the simple question about what people should ask before hiring an HVAC company. Mark … [Read More]

AC Not Cooling? Here’s Why, and What You Can Do About It It’s a hot summer day in Palatine, IL, and your air conditioner is running, but the house still feels like a sauna. If your AC isn’t cooling, you’re not alone. This is one of the most common problems homeowners face during peak heat, … [Read More]

Why Does My Air Conditioner Smell? 8 Common Causes & What You Can Do Noticing a strange smell coming from your air conditioner? Whether it’s musty, chemical, or something worse, an unpleasant odor from your AC isn’t just annoying—it could be a warning sign that something’s wrong with your system. In this blog, we’ll break … [Read More]

10 Commercial HVAC Tips All The Pros Should Know Welcome to On The Mark, the leading commercial HVAC maintenance and installation company in Schaumburg, IL. Proper maintenance of your HVAC system ensures it runs efficiently, saves energy, and extends its lifespan. Call us today for a free commercial HVAC consultation, or keep reading to learn … [Read More]

The year 2023 was a year filled with plenty of new adventures, opportunities, and growth for our team. Let’s take a trip down memory lane and relive the highlights of the past year. January We started the year strong by refreshing our website design. The goal was to create a cleaner, simpler look that better … [Read More]