VOC testing identifies which volatile organic compounds are in a home's air and at what concentration. VOCs are the gases given off by paints, adhesives, new flooring, cabinetry, furniture, cleaning products, and fuel, and they are the usual cause of the "new house smell" and of headaches that only happen indoors. Insight Home Inspection Services, LLC offers laboratory VOC testing as a $750 add-on service across Nashville, Knoxville, and Chattanooga, Tennessee, and Atlanta, Georgia. Since 2014, Insight has performed over 5,000 inspections, serving buyers, sellers, and homeowners throughout Tennessee and Georgia.
What VOC Testing Is
A VOC test is a full laboratory panel, not a handheld screen. The inspector collects an air sample from the living space using lab-supplied sampling media and ships it to an accredited laboratory. The lab separates and identifies the individual compounds in the sample and reports each one with its measured concentration, compared against published health guidelines.
This is different from Insight's air quality testing add-on, which screens for particulates, mold spores, carbon monoxide, allergens, and humidity. VOC testing answers a narrower, more specific question: what chemicals are in the air, and how much of each.
Common VOCs Found in Homes
- Formaldehyde, from pressed-wood cabinetry, flooring, insulation, and furniture. One of the most common indoor VOCs and a known carcinogen
- Benzene, from attached garages, stored fuel, and tobacco smoke
- Toluene and xylene, from paints, lacquers, adhesives, and printing products
- Acetone and alcohols, from cleaning products, nail products, and some building materials
- Chlorinated solvents, from degreasers, dry-cleaned clothing, and older spot removers
- Terpenes, from scented products, air fresheners, and some wood finishes
Health Effects
Short-term exposure to elevated VOCs causes eye, nose, and throat irritation, headaches, dizziness, nausea, and fatigue. Symptoms that improve when you leave the house and return when you come home are a classic sign.
Long-term exposure to some VOCs is more serious. Formaldehyde and benzene are classified as human carcinogens, and several others are linked to liver, kidney, and nervous system damage. Children, pregnant women, the elderly, and anyone with asthma or chemical sensitivity are affected at lower levels.
When VOC Testing Is Recommended
New construction. Newly built homes in the Nashville, Knoxville, Chattanooga, and Atlanta markets are full of fresh materials that off-gas for months. A VOC panel tells you what is in the air before you move a newborn or an asthmatic child into the house.
After renovation. New paint, flooring, cabinets, and countertops introduce a wave of VOCs. Testing confirms whether levels have come down enough to occupy the space comfortably.
Unexplained symptoms. Persistent headaches, irritation, or fatigue that only happen at home, with no obvious cause, are a reason to test.
Chemical odors. A solvent, fuel, or sweet chemical smell that does not go away points to a source worth identifying.
Attached garages and workshops. Fuel, paint, and solvent storage next to living space is a common route for benzene and other VOCs to enter the home.
Prior use of the property. Homes previously used for hobbies, small businesses, or storage of chemicals can carry residual VOCs long after the activity stopped.
Sensitive occupants. Buyers with chemical sensitivity, respiratory conditions, or young children often want the data before closing.
The Testing Process
1. Consultation, The inspector discusses your concerns and where in the home the sample should be collected
2. Air sampling, A sample is collected from the living space using lab-supplied sampling media, following the laboratory's protocol for duration and placement
3. Lab analysis, The sample is shipped to an accredited laboratory, which identifies the individual compounds present and measures each one
4. Report delivery, Results are compiled into a report listing each compound detected, its concentration, how it compares to published guidelines, and the most likely sources
What Happens If VOC Levels Are Elevated
Most elevated VOC results have a fixable source. Depending on what the lab finds, the report may point to:
- Ventilation, running fresh air through a new or newly renovated home for a period of weeks lowers most building-material VOCs
- Source removal, moving fuel, paint, and solvents out of attached garages and closets, or replacing a specific product
- Material choices, low-VOC paints, finishes, and flooring for future work
- Follow-up testing, after the source is addressed, to confirm levels have dropped
Insight provides the data and the likely sources. Remediation, where needed, is performed by the appropriate contractor.
Cost
VOC testing is available as a $750 add-on to any Insight Home Inspection Services inspection. The price reflects the laboratory panel, which identifies and quantifies individual compounds rather than giving a single total reading. The base inspection ranges from $500 to $1,000+ depending on the home's square footage. For a broader screen of particulates, mold spores, carbon monoxide, allergens, and humidity, see air quality testing ($200).
FAQ
How long does VOC testing take?
Setting up and collecting the sample adds time on site, and the sample then goes to an accredited lab. Results typically come back within about a week.
Is VOC testing the same as air quality testing?
No. Air quality testing is a $200 screen for particulates, mold spores, carbon monoxide, allergens, and humidity. VOC testing is a $750 laboratory panel that identifies individual chemical compounds and their levels.
Does VOC testing detect formaldehyde?
Yes. Formaldehyde is one of the compounds the laboratory panel identifies, and it is one of the most common findings in new construction.
Is VOC testing required for a real estate transaction in Tennessee?
No. It is a buyer's due-diligence choice, most often requested for new construction, recently renovated homes, or homes with sensitive occupants.
Can I get VOC testing without a full home inspection?
Contact Insight Home Inspection Services to discuss standalone VOC testing availability. The service is structured as an add-on to a standard inspection.
Does VOC testing detect radon or mold?
No. Radon is a separate radon test, and airborne mold spores are covered by mold testing and air quality testing. All three can be added to the same appointment.
Schedule VOC Testing
Insight Home Inspection Services, LLC provides laboratory VOC testing across Nashville, Knoxville, and Chattanooga, Tennessee, and Atlanta, Georgia. Find out what is in the air before you move in.
- Nashville: (615) 436-0606
- Knoxville: (865) 274-0808
- Chattanooga: (423) 395-2020
- Atlanta: (470) 801-4040
- Email: [email protected]