Air Duct Cleaning in St. Louis, Missouri — Prices & Quotes
Dusty vents, allergy flare-ups, or a musty smell when the system starts up? Compare St. Louis duct cleaning quotes on the same scope, and skip the $99 bait-and-switch. Local ductwork typically runs through the basement, which is what sets the price.
Air Duct Cleaning services in St. Louis
- Full source-removal cleaning
- HEPA negative-air equipment
- Supply & return runs included
- Dryer vent cleaning
- Duct sealing options
- Before/after verification
Typical prices
| Project | Typical price range |
|---|---|
| Full duct cleaning (per system) | $400 – $900 |
| Dryer vent cleaning | $80 – $180 /lin ft |
| Duct sealing (interior) | $1,350 – $3,600 |
| Coil cleaning add-on | $100 – $350 |
St. Louis homeowner questions
How much does air duct cleaning cost in St. Louis?
St. Louis prices generally track the ranges shown above, adjusted for Missouri labor rates and permitting. St. Louis homes cycle through hail, humid summers, and icy winters — a freeze–thaw grind on roofs, pipes, and driveways. Comparing two or three local quotes is the most reliable way to find the fair St. Louis price.
What should duct cleaning cost?
A legitimate source-removal cleaning runs $450–$1,000 per system and takes 3–5 hours. Sub-$200 whole-home offers are almost always bait for pressure upsells.
Is duct cleaning worth it?
In specific cases — after renovation, verified mold, pests, or heavy debris — yes. For routine dust, a better filter and coil cleaning usually help more per dollar.
How often should ducts be cleaned?
There's no fixed schedule; clean on triggering events (renovation, mold, pests, visible debris), not automatically every few years.
Where does the ductwork run in most St. Louis homes?
Basement. Basements are close to universal in St. Louis, and much of the older stock still runs original sheet-metal octopus trunk lines converted from gravity furnaces. These are accessible, but the interior surfaces are rougher than modern duct and hold more.
What goes wrong with ducts in St. Louis specifically?
Humid summers and cold winters mean year-round system operation. Basement-run ductwork avoids the attic condensation problem entirely, but basement moisture is its own factor in homes with any history of seepage. Converted gravity-furnace ductwork is oversized and often has abandoned branches. Ask whether the quote covers capping disused runs — leaving them open undoes much of the benefit.
Where your ductwork runs in St. Louis — and why it changes the quote
Basements are close to universal in St. Louis, and much of the older stock still runs original sheet-metal octopus trunk lines converted from gravity furnaces. These are accessible, but the interior surfaces are rougher than modern duct and hold more.
Humid summers and cold winters mean year-round system operation. Basement-run ductwork avoids the attic condensation problem entirely, but basement moisture is its own factor in homes with any history of seepage.
Basement access is the easiest case. Quotes for a comparable home tend to land at the lower end of the ranges above.
Converted gravity-furnace ductwork is oversized and often has abandoned branches. Ask whether the quote covers capping disused runs — leaving them open undoes much of the benefit.
Quoting models, national price ranges and what a written quote must contain are covered in the air duct cleaning cost guide.
Licensing in Missouri
There is no duct-cleaning-specific state licence in this market, which is the norm across most of the country. NADCA membership and proof of liability insurance are the two things actually worth verifying before a crew opens your system.
Other services in St. Louis
Air Duct Cleaning in nearby markets
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