Indoor air quality testing in Addison, IL that starts with measurement
Air quality problems are easy to guess at and hard to fix without data. We measure what is actually in the air and how your system moves it, then recommend only what the readings support.
Click Here To Call (888) 418-3681- Measured, not assumed
- Combustion safety checks
- Plain-language report
Why test the air before changing anything
People often come to us already convinced they need an air purifier, a whole-house filter upgrade or duct cleaning. Sometimes they do. Often the real cause is something different, such as a bathroom fan that vents into the attic, a humidity level high enough to feed dust mites and mold, a clothes dryer leaking lint into the basement, or a return duct pulling air from a dusty crawlspace. Treating the wrong problem costs money and leaves the symptoms in place.
Testing gives us a baseline. We measure relative humidity and temperature in several rooms, carbon dioxide levels as an indicator of how well the home is ventilated, airborne particle counts across common size ranges, and carbon monoxide around fuel-burning appliances. We also look at how the heating and cooling system circulates air, including filter fit, return locations and whether the ducts draw air from places they should not.
The results tell a story that a single symptom cannot. High carbon dioxide with stale odors points to under-ventilation. High particle counts that spike when the blower starts suggest the duct system is stirring up debris or pulling in unfiltered air. Persistent high humidity suggests moisture sources or a cooling system that is not dehumidifying well.
Testing is not a substitute for specialized laboratory analysis of specific contaminants such as asbestos, lead or mold species identification. If our readings or inspection suggest those concerns, we tell you plainly and recommend an appropriate specialist rather than guessing.
Reasons homeowners ask for air testing
Any of these can have several possible causes, which is exactly why measuring comes first.
- Dust that returns within days of cleaningLeaky return ducts, poorly fitted filters and low filtration are common causes, as are sources inside the home.
- Musty smells in certain roomsMusty odors usually mean moisture somewhere, often in basements, crawlspaces or around HVAC equipment with drainage problems.
- Condensation on windows in winterHeavy condensation signals high indoor humidity, which can damage window frames and encourage mold growth on cold surfaces.
- Stuffy air and headaches in closed roomsElevated carbon dioxide in bedrooms and offices often reflects limited fresh air exchange, particularly in tightly sealed homes.
- Allergy or asthma symptoms indoorsParticle testing and humidity readings help identify whether filtration, moisture control or ventilation changes are most likely to help.
- Fuel-burning appliances in the homeFurnaces, boilers, water heaters and gas ranges should be checked for proper venting and carbon monoxide levels.
What an air quality assessment includes
A typical assessment takes a couple of hours, depending on the size of the home and the number of appliances.
Conversation about symptoms
We start by asking what you notice, when and where. Timing clues, such as symptoms that worsen when the heat runs, often point directly to causes.
Room-by-room measurements
Temperature, relative humidity, carbon dioxide and particle counts are recorded in living areas, bedrooms, the basement and near HVAC equipment.
Combustion safety testing
Carbon monoxide is measured around fuel-burning appliances, and venting is checked for spillage, particularly when exhaust fans and the dryer run at the same time.
HVAC system review
We inspect filters, filter racks, return ducts, the blower compartment, the cooling coil and condensate drainage for sources of dust, moisture or biological growth.
Written findings and priorities
You receive the readings, an explanation of what each means, and recommendations ranked from simplest and most effective to more involved options.
What the recommendations usually involve
Many fixes are modest. A properly sized filter rack that seals around the filter, sealing return ducts in dusty spaces, venting a bathroom fan outdoors or adjusting blower settings so the cooling system removes more moisture can make noticeable differences. When ventilation is the problem, controlled fresh air through an energy recovery ventilator or similar equipment may be the answer.
Larger recommendations, such as whole-house dehumidification, media filtration or duct repairs, come with an explanation of which readings support them. We do not recommend equipment to address problems the testing did not find, and where a simple habit change would help, such as running kitchen exhaust while cooking, we say so.
Something about the air feels off?
Call to schedule testing. You will get readings, what they mean, and a ranked list of changes most likely to help.
Humidity is the quiet driver of many complaints
Relative humidity affects comfort, health and the durability of the house itself. Too dry in winter and people notice static shocks, cracked skin and irritated sinuses. Too humid in summer and dust mites multiply, musty odors develop and mold can grow on cool surfaces. Many indoor air guidelines suggest keeping humidity in a moderate range, roughly between 30 and 50 percent, with the exact target depending on the season and the house.
An oversized air conditioner is a common hidden cause of high summer humidity. It cools the air quickly and shuts off before removing much moisture, leaving the house cool but clammy. Testing that reveals this pattern often leads to blower adjustments or dehumidification, and when the time comes for new equipment, the sizing work on our Ac Installation page addresses it directly.
Ventilation in tightly built homes
Modern building practices and energy upgrades make homes tighter, which saves energy but also reduces the natural air exchange that once diluted indoor pollutants. Carbon dioxide levels rising well above outdoor levels in occupied rooms, especially bedrooms overnight, are a practical signal that fresh air exchange is limited.
Opening windows helps but is not practical year-round. Mechanical ventilation brings in measured amounts of outdoor air while exhausting stale air, and heat or energy recovery units transfer heat between the two streams to limit energy loss. Whether your home needs mechanical ventilation is one of the questions the carbon dioxide readings help answer.
Air quality testing questions
What does indoor air quality testing measure?
Our assessments measure temperature, relative humidity, carbon dioxide, airborne particle levels and carbon monoxide near fuel-burning appliances, along with an inspection of how your HVAC system moves and filters air.
Can you test for mold?
We look for conditions that support mold growth, such as high humidity, condensation and water leaks, and we inspect HVAC components where growth commonly occurs. Identifying specific mold species requires sampling and laboratory analysis by a specialist, which we will recommend if our findings warrant it.
Will an air purifier fix my air quality problems?
It depends on the problem. Purifiers and filters reduce airborne particles but do not address humidity, carbon dioxide or odors from moisture problems. Testing tells us whether filtration is the right tool or whether another fix would help more.
How often should indoor air be tested?
There is no fixed schedule. Testing is most useful when you notice symptoms, after major renovations, when moving into a new home, or after changes to heating equipment or ventilation.
Is carbon monoxide testing part of the assessment?
Yes. We measure carbon monoxide around furnaces, boilers, water heaters and other fuel-burning appliances and check that they vent properly. We also recommend working carbon monoxide alarms on every level of the home.
Services that often follow air testing
Depending on the readings, these are the fixes most commonly recommended.
Find out what is really in your air
Call to book an assessment. The readings come first, the recommendations come second, and you decide what to act on.