If you get itchy eyes and a runny nose every fall in Austin, ragweed is usually the reason. Ragweed pollen ramps up in Central Texas in late August and stays heavy through the fall, with the worst weeks often landing in September and October. That pollen does not stay outside. Some of it works its way into your home and settles in your supply ducts. Here is how it happens and what helps.
When Ragweed Hits Central Texas
Ragweed starts releasing pollen in the last weeks of August and does not let up until the first real frost. In the Austin area that means many weeks of high counts through September, October, and into November. A single ragweed plant can put out a huge amount of fine pollen, and our steady fall wind carries it for miles across Round Rock, Cedar Park, and Leander.
How Outdoor Pollen Gets Into Your Ducts
Pollen rides in on a lot of everyday things. It drifts through open doors, clings to clothes and pets, and slips in through small gaps around windows. Once it is inside, your system pulls the air through the return, and fine pollen settles along the supply ducts and packs into the filter. After that, every time the system runs it can lift some of that pollen and send it back into your rooms.
What That Means Indoors
Many Austin families think closing the windows solves the problem, then wonder why they still sneeze inside. The reason is the pollen that already made it into the system. Watch for these signs during ragweed season:
- Symptoms that flare up indoors, not just outside.
- More dusting needed than usual.
- A stuffy feeling soon after the AC turns on.
- A filter that looks packed when you check it.
Book Air Duct Cleaning in Austin
We clean the supply ducts that push conditioned air into your rooms so settled pollen does not keep recirculating. Same week appointments across the Austin area.
How Clean Ducts and a Good Filter Help
Cleaning your supply ducts pulls out the settled pollen and dust so the system stops recirculating it. It will not stop ragweed from blooming outside, but it clears what has collected inside where your air passes through. Pair an Austin air duct cleaning with a fresh pleated filter and change that filter more often during the fall. Together they cut down the pollen load your family breathes at home.
| Step | How often in fall |
|---|---|
| Change the air filter | Every one to two months during ragweed season |
| Clean the supply ducts | Every three to five years |
| Run the fan to keep air moving | As needed on high pollen days |
| Wipe vents and return grilles | Each season |
Small Habits That Cut the Pollen Load
A few easy habits help a cleaning last through the season. Wipe down pets before they come inside, since fur carries a lot of pollen. Leave outdoor shoes by the door instead of walking them through the house. Keep windows shut on high count days, and run the system fan so the filtered air keeps moving. None of it is hard, and together it means less pollen reaches your ducts in the first place. That way the work you paid for keeps paying off week after week.
Frequently Asked Questions
When is ragweed season in Austin?
It ramps up in late August and stays heavy through the fall, with the highest counts often in September and October, until the first frost.
Does duct cleaning stop my ragweed allergy?
No. It cannot stop pollen outdoors. It removes the pollen and dust that have settled inside your supply ducts so the system recirculates less of it.
Which ducts do you clean in Austin?
We clean the supply ducts that carry conditioned air into your rooms, which is where pollen and dust settle.
What filter should I use during ragweed season?
A pleated filter rated for smaller particles catches more pollen than a basic flat filter. Check it monthly in the fall, since a packed filter slows your airflow.
Want Easier Breathing Through Ragweed Season?
Licensed and insured technicians serving Austin, Round Rock, Cedar Park, and Leander. Call and we will help you plan the right time to clean.