IAQ Is No Longer Just an Add-On

You may or may not know that I live in Michigan. We’ve had some wild weather lately —crazy temperature swings teasing warm weather days with temperatures ranging from 60-70° one day, then back to the low 20s with snow showers the next. Don’t even get me started on the thunderstorms, tornado warnings, and high winds!

Either way, as we head into April, I’m thrilled that spring is finally here. I’m not so thrilled about what comes with it. “April showers bring May flowers,” as the saying goes — but for those of us dealing with seasonal allergies, that beauty often comes with a fair share of misery. My allergies are so bad that I receive weekly allergy shots. I also have a portable air purifier in the bedroom. Needless to say, our next big HVAC purchase will be a whole-home air purifier.

And, I know I’m not the only one!

Homeowners are paying closer attention to indoor air quality (IAQ) than ever before — and HVAC contractors are on the front lines of that shift. The pandemic raised awareness about airborne contaminants, but the concern has evolved into a broader focus on long-term health, comfort, and home performance.

Today’s homeowners are thinking beyond just germs — yes, they want cleaner air, but they also want fewer allergens, better humidity balance, and protection from pollutants like wildfire smoke and VOCs. It’s no secret that tighter building envelopes and energy-efficient homes can trap contaminants indoors, making IAQ solutions not just desirable, but necessary. The growing awareness reflects what’s going on in the market — according to a report from Dataintelo Consulting, the global IAQ market size was valued at approximately $20 billion in 2023 and is projected to reach around $35 billion by 2032, growing at a compound annual growth rate (CAGR) of 6.2%.

For HVAC contractors, this presents a major opportunity to position IAQ products not as add-ons, but as essential components of a complete comfort system that supports healthier living. In fact, Nexstar Network Business Coach Carlos Aponte strongly dislikes using the term “add-on sales” at all for IAQ products because it’s a critical component that every contractor should be offering to every customer on every call.

I spoke to him recently on the topic for an upcoming episode of the HVAC Chats podcast, which will be released later this month. Here’s what he had to say:

“We can all agree that customers are holding on a little tighter to their money when it comes to discretionary spending. A couple of thoughts: the more we keep making it (IAQ) discretionary (as opposed to a necessary part of a comfort system), the more it becomes difficult. Think about it this way. If homeowners are going to be holding on to their systems longer, we're going to have a harder time replacing it. Wouldn't we want to be the ones who are there helping them make it last longer, helping them make it feel fresh? If my air's a little cleaner, my system's going to last a little longer. Be there for him. Speak to those things. It's hard to predict, but at the end of the day, there are just certain things you have to bring up every single time, no matter what. You have to consider and use that angle, say, ‘I understand most homeowners are holding onto things a little tighter — I am in my own house. Here’s something you could help protect the system a little longer and make it last a little longer for you.”

And if you don’t take Carlos’s word for it (but you should because he knows his stuff), click over to our feature on how HVAC contractors from across the country are successfully increasing revenue through selling IAQ products and services.

As homeowners stretch the lifespan of their existing HVAC systems to avoid the cost of full replacements, IAQ solutions offer contractors a timely and profitable path forward. Accessories like air purifiers, filtration upgrades, humidity control, and ventilation improvements can be integrated into existing systems with minimal disruption, creating new touchpoints for service and upsell opportunities.

More importantly, they shift the conversation from reactive repairs to proactive health and comfort solutions — building trust and long-term customer relationships. For contractors willing to lead with education and bundle IAQ into maintenance agreements or system enhancements, it’s not just an add-on sale — it’s a scalable, recurring revenue stream that aligns perfectly with evolving homeowner priorities. And it’s one that helps allergy sufferers — like me — breathe easier and no longer dread the arrival of allergy season.