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Air Quality Testing Service

Turn to Gray's for Air Quality Testing in Carol Stream

Trusted Across DuPage County


Taking the Mystery Out of Indoor Air Quality

When most people think about HVAC, they think about heating and cooling. While these things are vital to your comfort, the quality of the air you breathe is just as (if not more) important to staying comfortable. Things like heightened humidity and excess dust or pollen can be detrimental to your health. Modern building codes—including the tight sealing of homes—limits air flow, creating a build-up of indoor air pollutants.

To protect your family in Bloomingdale or Carol Stream from poor indoor air, you first need to identify the problem. This starts with booking an appointment with Gray'sCarol Stream’s indoor air quality experts.

Determine the cause of your indoor air pollution. Schedule air quality testing with us in Bloomingdale or Glendale Heights.

The Importance of Indoor Air Quality Testing

If you’re here, you probably suspect your home or office has an air quality problem. Otherwise, you wouldn’t be looking for “air quality testing near me”. Many of our clients tell us they experience symptoms in a certain building, only for them to alleviate after they leave the property. This location-based feeling is referred to as “sick building syndrome”, and is a relatively common occurrence in the Carol Stream area.

The symptoms of polluted air vary from person to person but usually include:

  • Burning eyes or blurry vision
  • Clinical depression
  • Chronic congestion
  • Difficulty concentrating
  • Headaches
  • Lethargy
  • Nausea
  • Vomiting
  • Rashes

It should be obvious how large of a role indoor air quality plays in your everyday wellness! And, Gray's Heating & Cooling wants you to live the best life you can. That’s why we’ve invested so much money in our air quality testing training and equipment.

Our Air Quality Testing Process

Gray's provides comprehensive air quality testing throughout the Carol Stream area. Though this may sound simple, pinpointing the exact causes of your problems is a complex process. Doing so correctly requires an in-depth understanding of potential contaminants and the dangers they pose. To ensure consistent results, we typically follow the below process:

  1. Initial Consultation: You call (630) 283-7981 and discuss your concerns. We’ll ask some questions about the symptoms you’re experiencing. We may also ask about your building's set-up and history. When done, we’ll schedule an appointment for air quality testing in Carol Stream.
  2. Perform a Visual Inspection: Upon arriving, our technician will introduce him or herself. After that, they will complete a visual inspection. This means looking for things like roof leaks, salt deposits, window condensation, and staining. Though these will not reveal all contaminants, the visual markers give us insight into potential problems.
  3. Take Measurements: Now that they know what part of your building show signs of damage, our specialists will take air quality measurements. This usually involves using a handheld monitor to determine your home’s current levels of carbon monoxide, radon, and volatile organic compounds (VOCs). Once complete, these things will be compiled into a report.
  4. Make Recommendations: Now that we’ve pinpointed the reason behind your stuffy nose or chronic cough, we’ll present you with an itemized action plan. For items we can assist with, a price quote will also be provided. Potential solutions include air filtration, high-efficiency filters, and humidification services.

After that, all that’s left is to implement the products and changes we suggested.

Choose Gray's for Air Quality Testing in Carol Stream

In our 13 years in the air quality testing business, we’ve helped hundreds in the Carol Stream area breathe a little easier. This is possible thanks in large part to our licensed and trained technicians. So, rest assured, whether the issue is a lack of ventilation or an air filtration problem, we’ll be able to solve it. As true professionals, we promise to arrive on time and treat your home with the respect it deserves.

When you’re ready to schedule your air quality inspection in Bloomingdale or Carol Stream, reach out to us by phone or form. We look forward to adding you to our family of happy customers.

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Optimize Your Comfort in Carol Stream with Our Cooling Services


Everyone in Carol Stream and Bloomingdale is familiar with the bitterly cold weather common in Illinois. This kind of winter weather quickly becomes unbearable, with chills that seep right through your coat, brutal gusts of wind, and homes with floors as frigid as icicles.

Gray's can help you fight off the bitter chill of a Illinois winter. Our company offers competitive rates on service for heat pumps and furnaces.

Ready to have a cool home again in DuPage County? Call (630) 283-7981 today.

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No Shades of Gray in Our Customer Reviews

Customers in Carol Stream and Bloomingdale universally appreciate our HVAC services.

Cost-Effective and Fast Furnace Replacement
Excellent experience with Gray's. They provided a very competitive quote to replace my furnace, and once I gave them the go-ahead, they had a technician on site within 15 minutes—that level of responsiveness is rare. The team was professional, efficient, and easy to work with throughout the process. Highly recommend Gray's for anyone looking for fast, reliable, and fairly priced HVAC service.
S.M Suhail
Excellent Residential and Commercial Furnace and AC Service
I’ve had the pleasure of working with Gray's both personally and professionally. They’ve handled my regular furnace and AC maintenance for many years, always to my satisfaction. When it came time to replace my furnace, their expertise with our complex setup made it an easy decision to trust them with such a significant investment. Professionally, the company I work for also relies on Gray's to provide reliable and cost-efficient service to nearly 200 condo associations across the Chicagoland area. Their staff is friendly, knowledgeable, helpful, and patient — truly a pleasure to work with.
Jacqulin Goodlove-Schroeder
World-Class Furnace and Heat Pump Installation
My experience with Gray's was world class. From the initial estimate walk through in my home, to the installation of my new heat pump and furnace, the experience was pleasant the whole way through. The entire process with Gray's was efficient and effective, just like our new HVAC system. They've found the perfect combination of new school technology and old school relationship building. I feel like I'm in the right hands going forward!
Drew Doster
Friendly Late-Night HVAC Service
Gray's, thank you for sending Anthony to us. It was a late night emergency call. He was very friendly, courteous, knowledgeable and extremely professional. We will definitely keep your company in mind should we need any additional service. Thank you!
Hector R O
Respectful, Informative, and Fast AC Repair
We had Gray's come out to see why our AC unit wasn’t cooling correctly. They were able to come out right away, then figured out we had a small leak. We were given options by the tech that made me feel like I wasn’t being forced into a decision I didn’t want to make like I’ve felt from other companies. I wasn’t being talked into buying a whole new system, which was very important to me. Kirby was able to fix everything up that day and we had cold AC in under 3 hours. The office staff were easy to deal with. I also spoke to the owner, Dan, when he followed up with me and he was super friendly and professional.
Jonelle Salinas
Efficient AC Repair and Helpful Maintenance Tips
I recently had Sergio and Eric come over to update our AC unit for the summer, and I couldn't be more pleased with their service. From the moment they arrived, their professionalism was evident. They thoroughly inspected our unit and quickly diagnosed the issue causing it to shut off unexpectedly. Not only did they fix the problem efficiently, but they also provided us with excellent recommendations to prevent future issues. Their expertise and friendly demeanor made the entire experience seamless. I highly recommend Sergio and Eric for anyone in need of AC maintenance or repairs.
Marcus Howard
Effective Heat Exchanger Cleaning Fixed Furnace Fast in Sub-Zero Weather
We were in desperate need of help. Our furnace had stopped working and the sub-freezing temps were expected to drop to zero. Panic was setting in. But, Gray's was able to send their skilled technician, Sergio, who arrived almost two hours ahead of schedule. Sergio, diligently and expertly examined the furnace. Eventually, he diagnosed that a very dirty heat exchanger was causing poor airflow causing the system to shut down. He then spent a considerable amount of time in a very cramped space cleaning the suspect part. Eventually, he emerged, dirt smudged on his face with a bag filled with dirt. The system restarted and we are not in danger of suffering from hypothermia.
Kalman Fortoloczki

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