Whole-home duct cleaning
Dryer vent cleaning
Camera inspection
Sanitizing & deodorizingWhole-system duct and dryer vent check with before-and-after photos - you see exactly what came out of your vents
That "$99 whole-house special" is a bait ad - the real number appears once they are in your hallway, or the "clean" is a shop-vac at the register. We photograph the inside of your ducts before and after instead.
Air Duct Cleaning Company in Affton, MO
If your Affton home was built in the postwar boom and still runs on the ducts it was born with, the problem is usually not dirt alone. It’s crushed, disconnected, or undersized runs that no cleaning will correct. That’s why air duct repair is the service we start with in Affton: we assess the ductwork first, then clean what’s worth keeping and fix what isn’t. Our technicians have up to 9 years of experience, and we use professional-grade Rotobrush and Nikro extraction systems – not a shop-vac on wheels. Call (877) 349-6189 for a free estimate.
Why Affton Homes Are Different
Affton is a mid-century inner-ring St. Louis County suburb, ZIP 63123, and most of its housing went up in the post-WWII boom between the late 1940s and the 1960s. That single fact shapes almost every job we do here. The stock is dominated by small brick and frame ranches, bungalows, and split-levels. Many still have their original forced-air sheet-metal ductwork; others had central air retrofitted in the 1970s and 1980s into homes that started with gravity heat or no ducting at all.
Those retrofits are where the trouble hides. Short, undersized flex runs were often snaked through cramped crawlspaces and low attics, and decades later technicians find crushed or disconnected sections that no amount of cleaning will fix. Add a humid continental St. Louis climate – muggy summers and cold winters that keep the system running hard both seasons – and the region’s high summer humidity, which makes duct condensation, mold, and musty odors a recurring concern in older Affton systems. The result is block after block of small ranch and brick bungalow subdivisions where the real question is whether decades-old ductwork is worth cleaning, sealing, or partially replacing.
Styles & brands we work with
- Whole-home duct cleaning
- Dryer vent cleaning
- Camera inspection
- Sanitizing & deodorizing
Our Main Affton Services
Affton homeowners call us most often about these two jobs, and both fit the older housing stock here.
Air Duct Cleaning in Affton
Cleaning in Affton means working with ductwork that has had a long life. In 60- to 75-year-old ranches and bungalows, supply and return runs collect decades of dust, and the high summer humidity can leave a musty smell that returns every year unless the system is cleaned properly. We use Rotobrush and Nikro extraction systems with Abatement Technologies containment so debris leaves the house instead of settling into the rooms. Before we start, we look at whether the ducts are sound enough to be worth cleaning at all. You’ll find the full details on Air Duct Cleaning in Affton.

Dryer Vent Cleaning in Affton
Older Affton homes often have dryer vents that run long distances through a crawlspace or up an exterior wall – and lint builds up along every foot of that path. A dryer that takes two cycles to finish a load is telling you the vent is restricted, and restricted dryer vents are a leading cause of residential house fires. We clear the full run and check the exterior termination so the flap opens freely. The specifics are on our Dryer Vent Cleaning in Affton page.

Air Duct Repair in Affton
Air duct repair in Affton usually starts with an uncomfortable truth: a lot of the ductwork in this ZIP was sized and installed for a different era of home comfort, and some of it was retrofitted into spaces it was never designed for. In low-slung brick ranches built from the late 1940s into the 1960s, short flex runs pushed through cramped crawlspaces and attics are the norm, and years of settling, pests, and moisture leave sections crushed, torn, or simply disconnected. Our Air Duct Repair work exists for exactly this housing stock. Cleaning a duct system that can’t carry air is wasted money, so we diagnose the runs first and fix what’s compromised.
Ductwork Repair
Signs you need it
You need ductwork repair when some rooms never heat or cool properly, when you hear rattling or whistling at the registers, or when the high summer humidity leaves a musty smell in the house that keeps coming back.
What it costs in Affton
Typical ductwork repair in Affton runs about $185 to $450 depending on how many joints, seams, or sections need sealing or reconnecting, and the written estimate sets the final price.
How we do it
We inspect the accessible runs, identify crushed or disconnected sections, then seal, reconnect, or replace them and confirm airflow at the registers before we leave.
Air Duct Replacement
Signs you need it
Replacement makes sense when the original ductwork is past repair – brittle, collapsing flex runs or sheet metal with failed seams across long sections of the system.
What it costs in Affton
Air duct replacement in Affton typically falls in the $1,200 to $4,500 range depending on the length of the runs and how much is accessible without major opening work.
How we do it
We map the existing layout, remove the failed sections, install new ducting sized to the equipment, and test airflow room by room.
What Air Duct Repair Costs in Affton
These are typical ranges for the repair work we see most in Affton. Your written estimate sets the final price.
| Item | Typical range in Affton |
|---|---|
| Ductwork repair (sealing, reconnecting, small section replacement) | $185 – $450 |
| Air duct replacement (partial system) | $1,200 – $4,500 |
| Full duct system replacement | $3,000 – $8,000 |
Can you repair ductwork in a crawlspace under an Affton ranch?
Yes. Crawlspace runs are common in Affton’s low-slung ranches, and our technicians are set up to work in the tight clearances those spaces have. We identify crushed or disconnected flex, then fix or replace it in place.
Is it worth cleaning old ductwork or should it be replaced?
It depends on the condition of the runs. Sound sheet metal in a well-built Affton home is usually worth cleaning. Crushed or collapsing flex from a 1970s or 1980s retrofit is often better replaced, and we’ll tell you which you have before any work starts.
Brands We Service in Affton
We work with our brands and with trusted air-quality names including Honeywell, Aprilaire, and Abatement Technologies equipment for HEPA containment. We don’t stock parts, but we can source what a repair needs and give you a lead time up front. If your system uses a brand not listed here, ask when you call and we’ll confirm.
See the difference
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AfterPricing for Air Duct Cleaning Company in Affton, MO
Every price below is a typical range for this area. What pushes cost up in Affton is access: crawlspace and attic runs in these older ranches are tighter than in newer construction, and crumbling or disconnected ductwork can add repair work on top of cleaning. We set one flat price per system, agreed in writing before work starts, and the written estimate sets the final price.
| Service | Typical range in Affton |
|---|---|
| Air duct cleaning (whole system) | $350 – $700 |
| Air duct cleaning with heavy debris or multiple returns | $550 – $900 |
| Dryer vent cleaning | $125 – $250 |
| Dryer vent cleaning with a long or restricted run | $200 – $350 |
| Ductwork repair (sealing, reconnecting, small section replacement) | $185 – $450 |
| Air duct replacement (partial system) | $1,200 – $4,500 |
| Full duct system replacement | $3,000 – $8,000 |
| Duct cleaning plus repair on the same visit | Quoted per job after inspection |
Neighborhoods We Serve in Affton
We serve the whole Affton area, from the small ranches and brick bungalows near Gravois Road to the split-levels tucked into the quiet residential blocks off Laclede Station Road. Most Affton addresses fall within our standard dispatch window, and we route calls Sunday through Friday, 7am to 7pm, so the visit fits your day. We answer 24/7. Fast dispatch from 7am to 7pm.
- Residential blocks along Gravois Road
- Streets near Laclede Station Road
- Bungalow and ranch subdivisions near Weber Road
- Homes bordering the Affton and St. George areas of 63123
Service Area – Cities Near Affton
Affton sits in the middle of a cluster of St. Louis County communities, and we take calls across all of them. If you’re just outside the Affton line, we likely cover you too. Neighboring cities we serve include Lemay, MO, Mehlville, MO, Crestwood, MO, and Webster Groves, MO. Call (877) 349-6189 to confirm coverage at your address and get a free estimate.
Serving Affton, MO – Our Local Coverage Area
We serve Affton and nearby communities. Use the map below to see the area we cover. If you’re nearby, we can almost certainly help.
FAQs About Air Duct Cleaning Company in Affton
Yes. We cover all of Affton and the surrounding 63123 neighborhoods. Call (877) 349-6189 to confirm your address and we’ll book the visit that fits your schedule.
Duct repair usually doesn’t require a permit, but larger replacement work can, depending on the city. Check with the Affton building department before scheduling major work, and we’ll note it in the estimate.
We answer 24/7 and dispatch Sunday through Friday, 7am to 7pm. Call (877) 349-6189 and we’ll set a time, then confirm the flat price in writing before any work begins.
If your Affton home is running on old ductwork, the right first step is an honest look at what you have. Call Bellmont Air Duct Cleaning at (877) 349-6189 for a free estimate. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday. Our technicians have up to 9 years of experience, plus the repair capability to fix what a cleaning alone won’t solve. Bellmont Air Duct Cleaning.
What happens when you call
- 1A real person answersNo phone trees. Talk to a local air duct cleaning pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you. The visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Affton Customers Say
"Did the dryer vent while they were here for a small add on price. The dryer now finishes a load in one cycle instead of two."
- Malik Bryant"Quoted per system rather than the bait and switch per vent pricing everybody else in town uses. The number I was told on the phone was the number on the invoice."
- Whitney Sutton"Fair price and thorough work. They ran about an hour and a half past the estimated finish time, so don't schedule anything tight after."
- Steve Norris