The honest answer on timing
Air duct cleaning is not a yearly chore for most people. For a normal San Antonio home, every three to five years is the range that makes sense.
That is a range, not a rule, because your house is not average. A home with two shedding dogs and a kid with asthma is on a different clock than an empty two-bedroom. The three-to-five-year window is the middle. Where you land inside it depends on what your house puts into the air.
If you want one thing to watch instead of a date, it is the smell. When the AC first cycles on and the house smells dusty or stale for a minute, that is dust sitting in the runs getting blown back at you. That is the system telling you it is time.
Why San Antonio homes load their ducts faster
Your ductwork is the lungs of the house, and in San Antonio it breathes hard.
The AC runs for a big chunk of the year here. From spring into fall the system cycles constantly, and every cycle pulls air, dust, and whatever is floating through the house across the return and back out through the supply. More runtime means more that settles inside the ducts.
Then there is the pollen. Mountain cedar peaks from December into February and sets off cedar fever across the region, and oak takes over in spring. That pollen gets into the return air and collects in the runs. Add the fine limestone and caliche dust that blows in from every driveway and job site, and the ducts here fill up faster than they would in a milder, cleaner climate.
Not sure when your ducts were last cleaned?
We inspect first and show you what is in there before you spend a dollar.
Who should clean more often than every five years
Some homes should not wait the full window.
Pet homes are first. Dander and hair get pulled into the return and coat the inside of the ducts. If you have dogs or cats, closer to every three years is the smarter call.
Allergy and asthma households are next. If someone in the house already struggles through cedar season, the last thing you want is the system recirculating that pollen all winter. Cleaning the ducts is one piece of lowering the load, alongside good filters and clean carpet.
And any home right after construction. Drywall sanding and new flooring throw off a fine dust that finds its way into the return air and settles in the runs. Once the work is done and the dust has settled, clean the ducts regardless of when you last did it.
What a real duct cleaning includes
Cleaning the ducts means the whole path the air travels, well past the vent covers you can see.
That is the supply runs, the return runs, the registers, and the grilles. Clearing the runs and leaving the dust on the covers you actually look at every day misses the point. So does the reverse.
A straight cleaner will also tell you when you do not need it. If a system gets opened up and the ducts are basically clean, that is worth hearing, not a job to talk you into. We would rather keep you as a customer than sell you a service your house does not need.
While the crew is there, it is worth checking the dryer vent in the same visit. A clogged dryer vent is a genuine fire risk, and combining it saves you a second appointment. You can see the full service on our air duct cleaning page.
