Air Duct Cleaning in San Antonio, Texas — Prices & Quotes
Dusty vents, allergy flare-ups, or a musty smell when the system starts up? Compare San Antonio duct cleaning quotes on the same scope, and skip the $99 bait-and-switch. Local ductwork typically runs through the unconditioned attic, which is what sets the price.
Air Duct Cleaning services in San Antonio
- Full HVAC duct cleaning
- Dryer vent cleaning
- Sanitizing & deodorizing
- Mold treatment in ducts
- Vent & register cleaning
- Before/after camera inspection
Typical prices
| Project | Typical price range |
|---|---|
| Whole-home duct cleaning | $350 – $700 |
| Larger homes / multiple systems | $500 – $1,000 |
| Dryer vent cleaning | $100 – $200 |
| Duct sanitizing add-on | $75 – $250 |
San Antonio homeowner questions
How much does air duct cleaning cost in San Antonio?
San Antonio prices generally track the national ranges shown above, with labor rates and permit costs shifting quotes up or down. San Antonio's long cooling season and spring hail events keep local contractors booked — which affects demand and pricing seasonally. Comparing two or three local quotes is the most reliable way to find the fair San Antonio price.
How much does air duct cleaning cost?
Legitimate whole-home cleaning runs $350–$700. Be wary of $99 specials — they're usually upsell traps. A written quote covering all vents, returns, and the trunk line protects your price.
How often should ducts be cleaned?
Every 3–5 years for most homes — sooner after renovations, water damage, pest issues, or if you have shedding pets or allergy sufferers.
Does duct cleaning help with allergies?
Removing accumulated dust, dander, and debris measurably reduces circulating particulates, especially when paired with filter upgrades.
Where does the ductwork run in most San Antonio homes?
Unconditioned attic. Most San Antonio housing is slab-on-grade, so the trunk line and branch runs sit in the attic rather than a basement. Attic flex duct is the norm in anything built since the 1980s.
What goes wrong with ducts in San Antonio specifically?
Attic temperatures here run far above ambient through a cooling season that stretches from April into October. Insulated flex duct carrying 55°F air through a 130°F attic sweats at any weak point in the vapour barrier, and that condensation is what feeds microbial growth inside the jacket. A musty smell that appears only when the system first kicks on usually points at the plenum or the first few feet of trunk, not the registers.
Where your ductwork runs in San Antonio — and why it changes the quote
Most San Antonio housing is slab-on-grade, so the trunk line and branch runs sit in the attic rather than a basement. Attic flex duct is the norm in anything built since the 1980s.
Attic temperatures here run far above ambient through a cooling season that stretches from April into October. Insulated flex duct carrying 55°F air through a 130°F attic sweats at any weak point in the vapour barrier, and that condensation is what feeds microbial growth inside the jacket.
Attic access adds labour. Expect quotes toward the upper end of the ranges above compared with an identical home on a basement system.
A musty smell that appears only when the system first kicks on usually points at the plenum or the first few feet of trunk, not the registers.
Quoting models, national price ranges and what a written quote must contain are covered in the air duct cleaning cost guide.
Licensing in Texas
Texas requires an Air Conditioning Contractor licence — a TACL number — for any company that opens the air handler and cleans the blower wheel, evaporator coil, or mechanical components, under Chapter 1302 of the Texas Occupations Code. A crew that only vacuums the registers does not need one, which is exactly why the cheapest quotes stop at the registers. Ask for the TACL number and check it on the TDLR licence search before booking. Check a licence number on the TDLR licence search before booking.
Other services in San Antonio
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