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.
Fast, Reliable Air Duct Cleaning Across Mehlville
If your Mehlville home is one of the many 1950s to 1970s ranches and split-levels still running on its original ductwork, the air moving through it has been doing the same job for decades. We’re Bellmont Air Duct Cleaning, and we specialize in exactly that kind of system: professional-grade extraction with Rotobrush and Nikro equipment, HEPA containment from Abatement Technologies, and the repair capability to fix what a cleaning uncovers. We answer 24/7, and fast dispatch from 7am to 7pm gets a technician to Mehlville without the runaround. Call (877) 349-6189 for a free estimate.

Why Mehlville Homeowners Call Bellmont Air Duct Cleaning for Air Duct Cleaning
Our reputation in Mehlville is built on one thing: we tell homeowners what’s actually inside their ducts before we quote a price. That matters here, because Mehlville’s housing stock hides problems a quick vacuum-and-go outfit will never mention. Original galvanized ductwork that has rusted at the seams. Duct tape installed in the 1960s whose adhesive has long since dried out. A below-grade return in a split-level that sweats through every humid summer.
Our technicians have up to 9 years of experience working on exactly this generation of ductwork, and we approach Mehlville jobs as diagnostic work rather than surface cleaning. We use professional-grade Rotobrush and Nikro extraction systems, not the shop-vac-on-wheels setups that leave a fine film of dust behind. We’re insured and bonded, and we agree on one flat price per system before any work starts, with before-and-after photos of your own ducts so you can see what changed.
Mehlville sits close to our core St. Louis service area, so scheduling is straightforward. We’re a focused duct specialist with a three-service menu: cleaning, dryer vent cleaning, and repair. That’s it. No HVAC installs, no handyman add-ons. Just the work we do every day, done thoroughly.
Styles & brands we work with
- Whole-home duct cleaning
- Dryer vent cleaning
- Camera inspection
- Sanitizing & deodorizing
HVAC Duct Cleaning in Mehlville
HVAC Duct Cleaning in Mehlville is usually more than a routine sweep, because most of the homes here were built before duct sealing was standard practice. The job involves putting the whole system under negative pressure with HEPA filtration, agitating every run with rotary tools, and pulling out decades of accumulated debris from the supply and return sides. A typical full-system cleaning in Mehlville runs $350 – $650 for a single-story ranch or split-level, with larger or multi-zone homes landing toward the top of that range. You need it when registers are weak, when a musty smell follows the HVAC cycle, or when a renovation has pushed drywall dust through the returns. The written estimate sets the final price.
Supply and Return Ducts Together
Cleaning only the supply side leaves half the system untouched. In Mehlville’s older homes the return side is often where the real contamination sits, since return ducts pull air from every room before it reaches the air handler. We clean both sides in the same visit so nothing gets re-contaminated on the next cycle.
What the Camera Inspection Reveals
A video inspection shows what no amount of register-peering can: separated joints behind finished walls, crushed flex runs, and disconnected branches that explain weak airflow in a specific room. In Mehlville this frequently turns a cleaning visit into a repair conversation. We’d rather show you the footage and price the fix honestly than clean around a broken duct.
Vent Cleaning in Mehlville
Vent Cleaning in Mehlville means attending to the individual registers and branch runs that feed each room, and it’s the service most homeowners request when one room stays cold while the rest of the house is fine. We agitate and extract each branch, check the boot and the register itself, and confirm the run is actually connected. A single-zone or partial vent cleaning typically runs $180 – $350 in Mehlville, while a whole-home vent and register cleaning as part of full-system work is included in the full-system range. Call us if your registers are whistling, dusty, or simply not delivering air.
Registers and Boots, Not Just the Grille
Dust settles on the register grille, but the boot behind the drywall and the branch duct feeding it hold far more. We clean the full run to the trunk line, not just the visible faceplate. That’s where the debris that collects in a Mehlville home actually lives.
When Crushed Branches Hide the Problem
An under-delivering register in a 1960s split-level is often fed by a branch duct that was crushed during a past remodel or simply collapsed at a bend. Cleaning pushes air through a kink that shouldn’t be there. A quick inspection tells you whether the branch needs cleaning, repair, or both.

Trusted Brands We Service in Mehlville
We work with trusted air-quality brands including Honeywell and Aprilaire, and we know how these systems interact with the ductwork feeding them. That matters in Mehlville, where older homes often pair a newer HVAC system with original duct runs, and the mismatch is where airflow problems start. We don’t stock parts and we don’t claim to. What we offer is knowledgeable diagnosis: we can identify whether a Honeywell or Aprilaire component is working with your ducts or fighting them, and we can recommend the right next step. When a repair is needed, we can handle the duct side of it in the same visit rather than sending you off to find a second contractor.
See the difference
Before
After
Before
After
Before
AfterCommon Air Duct Cleaning Problems We See in Mehlville Homes
- Dried-out 1960s duct tape at every joint. The adhesive on original tape has failed across much of Mehlville’s mid-century housing, so joints separate and ducts pull in attic or crawlspace air right after cleaning. Sealing the joints is the real fix, not another pass with the vacuum.
- Sweating return ducts in split-level slabs. Return ducts running through uninsulated slabs condense in Mehlville’s humid summers, and that moisture feeds mold growth you won’t find in newer construction like Fenton or Oakville. Cleaning without addressing the moisture leaves the problem to come back.
- Crushed or disconnected branches behind drywall. Full supply and return cleaning often reveals a run that isn’t connected at all. The register still under-delivers because the duct behind it never worked.
- Rust and joint separation in original galvanized runs. Decades of humid summers and heavy winter heating cycles eat at galvanized steel from the inside. What looks like surface dust is often corrosion shedding into the airstream.
Pricing for Air Duct Cleaning in Mehlville, MO
Full-system HVAC duct cleaning in Mehlville typically runs $350 – $650 depending on home size, system complexity, and how much repair the inspection turns up. Vent-only or partial cleaning lands around $180 – $350. When a separation or crushed run needs fixing, duct repair is quoted separately based on what the camera shows, so you know the number before we touch anything. Older split-levels with below-grade returns often require the most work, and we’ll say so upfront. The estimate is free, the flat price per system is agreed before work starts, and the written estimate sets the final price. Call (877) 349-6189 to schedule a Mehlville estimate.
We Also Serve Cities Near Mehlville
We serve homeowners throughout Mehlville and the surrounding south St. Louis County communities, including Lemay, Affton, Concord, and Crestwood. Many of these neighborhoods share the same mid-century housing stock and the same ductwork challenges, so the diagnostic approach carries over. If you’re just outside Mehlville, call and we’ll confirm coverage and scheduling. Our air duct cleaning team handles each community with the same equipment and the same flat-price approach.
Serving Mehlville, MO – Our Local Coverage Area
We serve Mehlville 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 in Mehlville
We dispatch from 7am to 7pm, Sunday through Friday, and Mehlville is close enough to our core St. Louis service area that most jobs can be scheduled within a few days. Call (877) 349-6189 and we’ll give you the next available opening. We answer 24/7, so a call outside dispatch hours is booked into the next opening, Sunday through Friday, 7am to 7pm.
Yes, we cover all of Mehlville, from the split-levels near Lemay to the ranches closer to Affton and Concord. If you’re near the Crestwood line, we cover that too. Give us your address when you call and we’ll confirm scheduling.
Same-day service is often possible in Mehlville when the schedule allows, particularly for smaller vent-cleaning jobs. Call (877) 349-6189 and we’ll tell you what’s open. For anything outside dispatch hours, we book you into the next opening, Sunday through Friday, 7am to 7pm.
Not typically. Mehlville pricing runs in line with the rest of south St. Louis County at $350 – $650 for full-system cleaning. What can push a Mehlville job higher is repair work, since the older galvanized ductwork here more often needs joint sealing or reconnection once the camera inspection reveals what’s behind the walls.
A MERV 8 to MERV 11 filter is the right range for most Mehlville homes after a cleaning, and it’s what we typically leave behind. Higher MERV ratings catch finer particles, but on an older system with a standard blower they can choke airflow, so the right rating depends on your equipment. We check the air handler and blower motor before recommending a filter. Call (877) 349-6189 if you’re unsure what your system can handle.
We stand behind our work with a satisfaction guarantee, and we hand you before-and-after photos of your own ducts so you can verify the work was done. If something isn’t right, call us and we’ll make it right. We also handle duct repair in the same company, so if the cleaning uncovers a broken run, we can fix it under one flat price agreed before work starts.
If your Mehlville home is running on original ductwork, the air you breathe has been through a lot. Call (877) 349-6189 for a free estimate. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday. One flat price per system, before-and-after photos of your ducts, and repair on the same visit when it’s needed.
Written by the team at Bellmont Air Duct Cleaning.